Transform Your Chores with Everyday Items!

Bright Side

Unlock the potential of common household items to enhance your cleaning routine and daily tasks. Explore clever hacks and resourceful fluid dispensers that can streamline your chores without spending any money. Join us on this journey to reveal the surprising capabilities of what you already have at home, making your weekly chores effortless and efficient.

Transcript

00:00:00Many shirts have two buttons on the cuffs, but only one buttonhole.

00:00:05So what is the second button for?

00:00:08Turns out you can use it whenever you're wearing a watch, so the cuff is looser.

00:00:14Most clothing items you buy come with a small bag of fabric or a button, or both.

00:00:20Buttons obviously can be used as a replacement if you lose the original ones.

00:00:24Pieces of fabric can be used to patch up a hole, but most importantly, it's a tester.

00:00:30You can use it to test different washing products on it and see what happens to the fabric.

00:00:36Some umbrellas have a tip at the top, and it turns out it's not just a pretty design.

00:00:42When going inside on a rainy day, you should just close your umbrella and tap the tip against the floor

00:00:48to drain the water faster and more effectively.

00:00:52Many backpacks have this diamond with two parallel cutout slits on its front, and it's there for your comfort.

00:01:00You can attach something to it, like a water bottle or shoes.

00:01:04It comes especially handy if you travel somewhere or go hiking, so you don't have to hold your stuff.

00:01:11Okay, the next thing is gear loops, and probably from the name of it, you already have an idea what

00:01:17they're there for.

00:01:18You can strap in some useful gear you need to have with you, like trekking poles or shovels.

00:01:23Some gear will need to be secured to do it.

00:01:27Drop the handle through the loop and rotate it upward.

00:01:30Then, secure it with the elastic hook at the top, and you're golden.

00:01:35On the back of many makeup and hygiene products, you can find this symbol with a marking, like 6M, 12M,

00:01:43and 24M.

00:01:45This is the number of months this product can serve after you open it and before you should throw it

00:01:51out.

00:01:53The two sides of a cotton pad are different because each of them has a particular purpose.

00:01:58A cotton pad has several layers to ensure that it's soft, strong, and can absorb liquids.

00:02:05The edge is stitched to hold it all together.

00:02:08The smooth side of a pad is for applying products, like tonics and lotions.

00:02:13And the embossed side is best for cleansing and makeup removal.

00:02:19Also, any pack of cotton pads has those strings on the sides.

00:02:23They're there so you can hang the package somewhere.

00:02:26Then, you can open the package at the bottom, where the perforated line is, and take them out.

00:02:32Did you know that there is an efficient way to pull a thread from yarn?

00:02:37When you pull from the outside, the yarn rolls away, so you need to hold it.

00:02:41However, if you pull it from the center, it will stay together.

00:02:46We're all familiar with staplers, but I bet you don't know all its secrets.

00:02:51Most staplers have a compartment to store spare staples, which can be located either on top or at the bottom.

00:02:59Also, surprise! This metal plate you press staples against can be turned around.

00:03:04This way, the device will be able to staple your documents by turning the metal ends outwards.

00:03:11No need to wonder whether you need to get a smaller or bigger container.

00:03:16Turns out, plastic food containers have volume measurements on their bottoms, indicating how much food they can fit.

00:03:24Ceiling fans come with a small switch on the inside of the blade.

00:03:27You might not have noticed it because it's not in plain sight, so check yours out.

00:03:32This switch allows you to change the direction of rotation.

00:03:36Now, why would you want to do that?

00:03:38The blades of a fan push the air in different directions, depending on the way they rotate.

00:03:44In the summer, you need the air to be pushed down to create the effect of a breeze.

00:03:50In the winter, the direction should be changed so that the air is pushed towards the ceiling.

00:03:55It then heats up before going down the walls.

00:04:00Have you noticed that the gas tank sign on cars' dashboards has a little arrow next to it?

00:04:07Well, this arrow has a purpose.

00:04:09It points at the side of the car where the gas tank is located.

00:04:13It's very useful for forgetful people who constantly wonder where the gas tank is,

00:04:18and also for those who drive rentals once in a while.

00:04:21The answer is right in front of your eyes.

00:04:23If you can't find the arrow on your panel, then the fuel hose on the icon indicates the side instead.

00:04:32All car tires have 12-digit numbers printed on them,

00:04:36and they're actually important codes for car owners if they want to get the right tire.

00:04:41The first letter identifies the type of tire.

00:04:44P stands for a tire for light passenger cars, and LT is for heavy vehicles.

00:04:50Then, the following numbers stand for the width of the tire, its radial, and its diameter.

00:04:58Measuring tapes have that metal stud on the end,

00:05:01which you can use to attach the tape to the surface you measure.

00:05:04This way, you don't need to hold it yourself.

00:05:07But there's also a small slot, which can be used to hang the tape on a nail,

00:05:12again to free your hands and keep measuring.

00:05:16The bottom of the end of the tape has a ridged edge.

00:05:20It will help you make a mark if you don't have a marking tool with you.

00:05:25On the tape, there are black diamonds that are placed every 19.2 inches.

00:05:30They're useful for construction workers when spacing engineering joists.

00:05:34They can also be useful for you if you want to hang something heavy, for example.

00:05:40The diamond will mark the exact center of a wooden joist.

00:05:44Those are placed 16 inches apart from one another.

00:05:47There, you can drill something to that center

00:05:50to make sure whatever you hang is safely attached to the joist

00:05:53instead of the unreliable thin wall.

00:05:56Pictures will survive, but it's particularly important if you're hanging something heavy.

00:06:02Did you know that batteries have an expiration date?

00:06:06Yes, it's printed right on their label, but I've never noticed it before.

00:06:11The expiration date doesn't mean you can't use it after that.

00:06:15It's more like a recommended usage period,

00:06:18after which the manufacturer can't guarantee full battery life

00:06:23due to deteriorated components.

00:06:27These little feet keyboards have are actually a standard.

00:06:32The height of a keyboard should be adjustable,

00:06:35allowing the angle between 0 degrees and 15 degrees.

00:06:40The reason to fold the feet out is for you to see the keys better,

00:06:45in case you don't type blindly.

00:06:47A little problem that comes with it is that, in this case,

00:06:51your wrists are bent,

00:06:53and it's not good to keep them in this position for a long time.

00:06:59Pans have those holes on the ends of their handles.

00:07:02They're not just there for you to hang them.

00:07:04You can also place your cooking spoon in there.

00:07:08It'll hang right above the pan,

00:07:10and the sauce will not spill around.

00:07:13Make sure to tap off the sauce or food beforehand, though,

00:07:17so that it doesn't go down the spoon's handle.

00:07:22Stickers with numbers you can find on fruits

00:07:24can tell you some information on how the food was grown.

00:07:29A four-digit code that starts with a four

00:07:32means that the fruit was grown conventionally,

00:07:36meaning it contains chemicals and pesticides.

00:07:40So your best choice should be a fruit with a five-digit number.

00:07:44And if you see the number nine,

00:07:46it indicates that the fruit is certified organic.

00:07:51On the bottom of plastic bottles,

00:07:54you can often notice a mark of a triangle

00:07:57with a number engraved in the middle.

00:08:00This number specifies the type of plastic

00:08:03that was used to produce the bottle.

00:08:05These codes help people and local recycling centers

00:08:10to sort returns.

00:08:12Products that were made of plastic of types 1 and 2

00:08:16are the easiest ones to recycle.

00:08:19Plastics of types 3 through 7 are tougher to recycle.

00:08:26Leaving your valuables or a chocolate bar in a car

00:08:29is a no-brainer.

00:08:30But there are other things people often overlook.

00:08:34Here's what to watch out for before leaving your car.

00:08:37Number one is aerosol cans.

00:08:40Hairspray, deodorant, spray paint,

00:08:42household cleaner, and that sort.

00:08:44On the back of these cans,

00:08:46you might notice a storage temperature recommendation.

00:08:48Well, stick to that.

00:08:51Here's what can happen.

00:08:52Since these cans are pressurized,

00:08:54they become more sensitive to temperature.

00:08:57What's inside the aerosol may expand,

00:08:59and this may result in a crack,

00:09:01and then the can can blow up.

00:09:04Temperatures above 100 degrees Fahrenheit

00:09:06are already alarming,

00:09:07and it can easily get as hot as that in your car

00:09:10on a warm summer day.

00:09:13Researchers from the USA have figured out

00:09:15how long it takes a car

00:09:16to turn into a sweat factory on a hot day.

00:09:22Within one hour,

00:09:24the insides of the car parked in the sun

00:09:26reaches 95 degrees Fahrenheit or hotter,

00:09:29with an average temperature of 116 degrees Fahrenheit.

00:09:33So, if you want your car in one piece and running,

00:09:36take aerosol cans with you.

00:09:40The second item is sunscreen.

00:09:44Sunscreen is vital for your skin

00:09:46since it decreases the risk of skin complications

00:09:48and prevents skin aging caused by the sun.

00:09:52This includes wrinkles, sagging, and age spots.

00:09:56But when you leave sunscreen in your car,

00:09:58it gets exposed to high temperatures,

00:10:00and it can ultimately shorten its shelf life.

00:10:02If you end up finding spoiled sunscreen,

00:10:05you might notice a funny smell when you open the cap.

00:10:08Plus, the heat might cause the cap to open,

00:10:11and the sticky substance will get all over the car.

00:10:14The same rule applies to lipsticks

00:10:16and other cosmetics as well.

00:10:19The next one is plastic bottles.

00:10:23There are two reasons why you shouldn't leave them inside your car.

00:10:27Firstly, a plastic water bottle can act as a lens,

00:10:30magnifying the sun's rays and starting a fire.

00:10:34A fire department in Oklahoma conducted an experiment

00:10:37and confirmed that the danger of fire was real.

00:10:41David Richardson from that department says

00:10:43it can happen if the beam of light is focused enough.

00:10:47The second reason is related to your health.

00:10:49Many plastic bottles contain bisphenol,

00:10:52a potentially toxic compound.

00:10:54The BPA levels can increase at high temperatures,

00:10:57and that can be harmful to your body.

00:11:00There's a chance that this chemical can get into your drink

00:11:03after you leave the bottle inside the vehicle.

00:11:07Oh, and batteries.

00:11:08They could lose their capacity to work at full power

00:11:11when they're left abandoned in the car.

00:11:13You can buy a new pair and fix this problem,

00:11:16but it won't be as easy to solve the problem of leakage

00:11:19or a rupture.

00:11:20It can be bad for your health

00:11:22because battery acid is dangerous

00:11:24when inhaled and highly corrosive.

00:11:27The reason for leakage is, again,

00:11:29related to high temperatures.

00:11:31Battery manufacturers recommend keeping their products

00:11:34at room temperature.

00:11:37This fact is partially related to batteries.

00:11:40It's about electronics.

00:11:41Have you ever realized how hot your phone can get

00:11:44when it's exposed to the sun?

00:11:46You're driving and, let's say,

00:11:48looking at the GPS on your phone.

00:11:50Even in this situation, your phone can heat up.

00:11:53What will happen to it after hours of sun exposure?

00:11:57Phone companies are strongly against customers

00:11:59leaving their devices in vehicles

00:12:01because they might shut down,

00:12:03get damaged, or, you know, boom!

00:12:07Personal belongings are another priority on the list.

00:12:10A wallet or a handbag may come to one's mind first.

00:12:14Yet, a passport or even some change you leave

00:12:17near the passenger seat is sometimes enough

00:12:19to attract a thief.

00:12:21Better to keep such stuff out of sight,

00:12:23for example, by storing it in the trunk

00:12:26instead of leaving it in the back seat.

00:12:30Number 7 is also related to theft.

00:12:33Life can be too hectic sometimes.

00:12:35And it's understandable if you can't

00:12:37clean your car frequently.

00:12:38But leaving garbage in the car is another mistake.

00:12:41Thieves tend to search for messy-looking cars.

00:12:44They think that the owner doesn't use

00:12:46such a vehicle frequently.

00:12:49How about plants?

00:12:52I know, it isn't that common to keep plants

00:12:54in the car on a daily basis.

00:12:56But sometimes, you need to move them.

00:12:59The heat inside the vehicle

00:13:00can easily dehydrate the poor thing.

00:13:04Medications are another thing

00:13:06you shouldn't keep in the car for too long.

00:13:08The constantly changing temperatures

00:13:10inside the vehicle

00:13:11can decrease the effectiveness of your pills.

00:13:14Authorities recommend keeping most medications

00:13:17at 59 to 77 degrees Fahrenheit

00:13:20in a cool and dry place.

00:13:23Important documents that contain

00:13:25your personal data shouldn't be left

00:13:27in the vehicle either.

00:13:28Some examples of such documents

00:13:30are tax forms, financial statements,

00:13:32and school transcripts.

00:13:34A thief could commit fraud or identity theft

00:13:37using this valuable information.

00:13:41And there's also food and drinks.

00:13:43Experts recommend not leaving groceries

00:13:45or leftovers in a warm car

00:13:47for more than two hours

00:13:49or only an hour

00:13:50when it's over 90 degrees Fahrenheit.

00:13:52The same rule applies in the winter too.

00:13:56Canned foods, for example,

00:13:57have a high risk of going bad

00:13:59if a can of sweet peas, let's say,

00:14:02gets frozen in the car.

00:14:03The effect will be similar

00:14:05to what would happen to soda.

00:14:07Let it thaw in the refrigerator

00:14:08instead of leaving it at room temperature.

00:14:11If the product doesn't look or smell normal,

00:14:14throw it away in a place

00:14:15where not even an animal can find it.

00:14:17Don't try to taste it.

00:14:19Just trust your senses.

00:14:20If the item seems rusted

00:14:22or there are some cracks in the can,

00:14:24it should end up in the trash too.

00:14:26Eggs are another example.

00:14:29Normally, eggs shouldn't be frozen.

00:14:31But let's suppose you forgot

00:14:32one grocery bag in the trunk of the car

00:14:34and the weather was so cold at night

00:14:36that the eggs got frozen.

00:14:38Keep the eggs in the refrigerator before use.

00:14:40They should be hard cooked.

00:14:42It's your only option.

00:14:43You see, freezing causes the yolk

00:14:45to become thick and syrup-like.

00:14:47It loses that natural flow

00:14:49and doesn't mix well with other ingredients.

00:14:54You shouldn't leave your pets alone in the car,

00:14:56obviously,

00:14:57and not just because of a potential rise in temperature.

00:15:01They will feel uncomfortable without you,

00:15:03their best friend accompanying them.

00:15:05In their frustration,

00:15:06they might do something to get noticed,

00:15:08which can be, for example,

00:15:10ruining the interior of the vehicle.

00:15:14Now let's return to the winter season again.

00:15:16If possible,

00:15:17keep the gas tank of your car over half full.

00:15:20This can prevent the fuel lines from freezing.

00:15:22It also makes it easier to start the engine

00:15:25and hit the road in the morning.

00:15:27While keeping an eye on the fuel bar,

00:15:29it might be a good idea

00:15:30to glance at the tire pressure too.

00:15:32The cold can result in tire pressure drops.

00:15:37Not only high,

00:15:38but also low temperatures can damage some items.

00:15:41A good example is paint cans.

00:15:44They should be quickly taken out of the vehicle in the winter.

00:15:47The ingredients in the paint

00:15:48can experience expansion,

00:15:50separation,

00:15:51and clumping due to the cold.

00:15:53In other words,

00:15:55you won't be able to use this paint anymore.

00:15:58Weather also affects wooden musical instruments

00:16:01like violins or guitars.

00:16:03Changes in temperature and humidity

00:16:05can cause wooden instruments to warp,

00:16:07crack,

00:16:08or split.

00:16:10Glasses get affected by fluctuating temperatures too.

00:16:14In a hot car,

00:16:15plastic frames can bend.

00:16:17Or,

00:16:17plastic can become brittle when it's very cold.

00:16:20This makes glasses prone to breaking.

00:16:23Don't leave house keys

00:16:24and garage door openers inside the car.

00:16:27This is an everyday practice for many people,

00:16:29but it's risky.

00:16:30They can get into the wrong hands.

00:16:34To listen to music,

00:16:35most people connect their phones to the car

00:16:37or listen to the radio.

00:16:40CDs are getting less and less used these days,

00:16:42but don't leave them in the car anyway.

00:16:44They might get warped,

00:16:45and you won't be able to use them anymore.

00:16:48Can you think of any other items

00:16:50you shouldn't leave in the car?

00:16:54What's hiding inside Coca-Cola cans

00:16:56and regular household batteries?

00:16:58Why do magnets affect breakfast cereals?

00:17:02Do crosswalk buttons actually work,

00:17:04or are they just useless decorations?

00:17:07What does that USB symbol really mean?

00:17:11I'm not sure I know the answers to these

00:17:13and similar questions,

00:17:15but I'm eager to learn the truth together with you.

00:17:17Let's find it out.

00:17:19Coca-Cola cans have a secret

00:17:21few people know about.

00:17:23Here's a Coke can.

00:17:25Let's submerge it in a highly corrosive alkaline solution.

00:17:28The aluminum dissolves due to a process

00:17:31known as hydrolysis,

00:17:33and we can see a plastic liner inside the can.

00:17:35It's made from a polymer or epoxy resin

00:17:38and serves as some kind of a protective barrier

00:17:41between the aluminum walls of the can

00:17:43and the rather acidic soda.

00:17:46Despite a popular myth,

00:17:48household batteries don't actually contain liquid,

00:17:51and if you accidentally cut them open,

00:17:53no toxic liquid will spill.

00:17:55Most of them are dry cell batteries,

00:17:57which are made of electrochemical cells.

00:17:59Those convert chemical energy into electrical energy.

00:18:03Larger batteries often house numerous small cells within them, too.

00:18:07Even Tesla vehicle batteries consist of multiple small cells.

00:18:11When combined,

00:18:13they easily provide the necessary voltage.

00:18:17Most toothbrushes have differently colored bristles,

00:18:20but they aren't just pleasing to the eye.

00:18:22Those bristles, often blue,

00:18:24have a functional purpose.

00:18:25They're called toothbrush indicators,

00:18:28and their colors fade as you use the brush.

00:18:30The American Dental Association recommends

00:18:33changing your toothbrush at least four times a year.

00:18:36And by getting paler,

00:18:37these bristles help you figure out

00:18:39when it's time to replace your toothbrush.

00:18:42You'll probably agree that there's no better snack

00:18:44than a pack of chips.

00:18:46Some are flat, others have ridges.

00:18:48Is it just aesthetics?

00:18:51Not really.

00:18:52The main purpose of those lines on some kinds of chips

00:18:54is to help with the distribution of spices and seasonings.

00:18:58In other words,

00:18:59all those substances that make your chips taste like cheese

00:19:01are mostly stored inside the lines.

00:19:04Plus, the lines make chips crunchier.

00:19:08Now, this one might be a surprise,

00:19:10but some breakfast cereals are magnetic.

00:19:13That's because they're often fortified with iron

00:19:15in the form of a fine powder.

00:19:17Due to the added iron,

00:19:19cereal flakes get attracted to magnets.

00:19:21All this may sound kinda alarming,

00:19:23but in reality,

00:19:24the iron content in the flakes is minimal

00:19:26and doesn't pose any threat to your health.

00:19:30That clear fluid in gel pens

00:19:32is called the ink follower or stopper fluid.

00:19:35The gel in such pens contains pigment particles

00:19:38dissolved in a polymer solution.

00:19:40The main task of the stopper fluid

00:19:42is to be a barrier

00:19:43to prevent the gel from evaporating or leaking out.

00:19:46Without this transparent fluid,

00:19:48your gel pen wouldn't function.

00:19:51The fluid always stays in one position

00:19:53and doesn't get dissolved with the gel.

00:19:55Neither does it move backwards

00:19:57or flow out of the pen.

00:20:00Many pedestrian crosswalk buttons,

00:20:03namely in New York,

00:20:04are placebo buttons.

00:20:05They do literally nothing when you press them.

00:20:09Originally, they were functional

00:20:10after being introduced in 1964,

00:20:12but today,

00:20:13most of them don't affect traffic lights,

00:20:15which are programmed

00:20:16based on the real needs of the traffic flow.

00:20:19Why do such buttons even exist, then?

00:20:21It's a simple psychological trick,

00:20:24providing you with an illusion of control.

00:20:27You might have noticed

00:20:28that movie theater seats

00:20:30are almost always red.

00:20:32This choice isn't random.

00:20:34It has strategic importance,

00:20:35which is rooted in visual science.

00:20:38The thing is,

00:20:39red light has a longer wavelength.

00:20:41It means that it's the first color

00:20:42to disappear in low light.

00:20:44It allows the audience

00:20:45to concentrate better on the screen

00:20:47once the movie begins.

00:20:48Such a design choice

00:20:49enhances the viewing experience

00:20:51by minimizing distractions.

00:20:54Speed bumps are crucial

00:20:56for pedestrian safety,

00:20:57but at the same time,

00:20:59they can seriously increase car emissions

00:21:01due to the non-stop acceleration

00:21:03and deceleration they cause.

00:21:06To address this issue,

00:21:07some cities, like London,

00:21:09are testing fake speed bumps.

00:21:11Those are optical illusions

00:21:12painted on the road.

00:21:14They look raised

00:21:15from a driver's perspective,

00:21:16but in reality,

00:21:17they're flat.

00:21:19Authorities hope that this approach

00:21:20will slow down drivers

00:21:21without having a negative impact

00:21:23on the environment.

00:21:26Soda bottles are always filled

00:21:28in such a way

00:21:29that there's some space

00:21:30between the liquid and the cap.

00:21:32That's because soda contains

00:21:33carbon dioxide.

00:21:34It's a gas that can expand

00:21:36once the bottle's heated.

00:21:38If there's no gap in the bottle,

00:21:39it can break

00:21:40because of the pressure

00:21:41building inside.

00:21:43Also, when you open your drink,

00:21:45the gases go out

00:21:46in the form of bubbles,

00:21:47making the drink overflow.

00:21:49The gap helps with this problem, too.

00:21:53The USB symbol.

00:21:55Looking like a trident

00:21:56has always sparked

00:21:57multiple speculations

00:21:58about its origin.

00:22:00One popular idea

00:22:02is that it represents

00:22:03Neptune's trident

00:22:04and symbolizes power

00:22:05and adaptability.

00:22:06But there's also

00:22:08a little bit less

00:22:09exciting theory.

00:22:10A man who claimed

00:22:11to have designed the symbol

00:22:12in the 1980s

00:22:14stated that it was supposed

00:22:15to represent connectivity.

00:22:16The large circle

00:22:17symbolizes a computer,

00:22:19while the attached shapes,

00:22:20the circle,

00:22:21the triangle,

00:22:22and square,

00:22:23stand for different outputs.

00:22:26The design of a tennis racket

00:22:28has a specific feature

00:22:30known as the throat.

00:22:31It's an open space

00:22:33below the head of the racket.

00:22:34This space isn't just

00:22:36for storing balls,

00:22:37it also improves

00:22:38the racket's aerodynamics

00:22:39by letting air pass through.

00:22:41It seriously reduces

00:22:43drag during swings.

00:22:46Speaking of tennis,

00:22:47tennis courts are usually built

00:22:49with a north-south orientation.

00:22:51It helps minimize the impact

00:22:53of the sun's position

00:22:54during the game,

00:22:55ensuring that neither player

00:22:56has the sun directly

00:22:57in their eyes.

00:22:59Look closely

00:23:01at a tram's overhead lines,

00:23:02and you'll see

00:23:03that its contact wires

00:23:04zigzag back and forth

00:23:06instead of going

00:23:07in a straight line.

00:23:08That's because

00:23:09all trams have pantographs

00:23:11attached to their roofs.

00:23:12The upper part

00:23:14of the pantograph

00:23:14is gradually worn down

00:23:15by the overhead wire

00:23:17and eventually

00:23:17needs to be replaced.

00:23:19To wear it down evenly,

00:23:21the wire is not installed

00:23:23strictly along the tram's path,

00:23:25but in zigzag patterns.

00:23:27As the tram moves,

00:23:29the pantograph slides

00:23:30along the wire,

00:23:31and it wears down evenly.

00:23:34Those cone-shaped

00:23:35water cooler cups?

00:23:37Their shape

00:23:38is intentionally designed

00:23:39to prevent users

00:23:40from setting the cups down.

00:23:41This allows employees

00:23:43to minimize the risk

00:23:44of spilling water

00:23:45on their desks

00:23:46around various

00:23:47electronic devices.

00:23:48Plus,

00:23:49less material is used

00:23:50to produce cone-shaped cups,

00:23:52which makes the process

00:23:53less wasteful

00:23:54and more cost-effective.

00:23:56It also kind of

00:23:57supports sustainability

00:23:58by encouraging people

00:23:59to drink their water quickly

00:24:00and dispose of their cups

00:24:02immediately after.

00:24:05Most suitcases

00:24:06have two zipper pulls,

00:24:08and it serves

00:24:09several purposes.

00:24:10First of all,

00:24:11if one zipper fails,

00:24:13the other can keep

00:24:14the suitcase closed.

00:24:15Even better,

00:24:17having two zippers

00:24:18allows you to have

00:24:19easier access

00:24:19to small sections

00:24:20of your suitcase

00:24:21without having to

00:24:22open it entirely.

00:24:24And finally,

00:24:25when you have two zippers,

00:24:27you can connect them

00:24:28with a padlock

00:24:29for increased security.

00:24:32Some plastic milk containers

00:24:34have dents

00:24:35on their sides.

00:24:36These dents

00:24:37serve several purposes.

00:24:38When milk spoils,

00:24:40it usually causes swelling

00:24:41and high-pressure buildup

00:24:42inside the container.

00:24:43That's when the dent

00:24:44pops out

00:24:45and doesn't let

00:24:46the jug blow up.

00:24:47Plus,

00:24:48if you decide

00:24:49to freeze the milk,

00:24:50it will expand

00:24:51like any other fluid.

00:24:52And then again,

00:24:54the indentation

00:24:55will pop out

00:24:55and prevent the container

00:24:56from breaking

00:24:57inside your freezer.

00:25:00If you ever had

00:25:02a problem figuring out

00:25:03why fake pockets exist,

00:25:05you need to hear this.

00:25:06The main reason

00:25:07is that if a clothing item

00:25:09has a specific cut

00:25:10or shape,

00:25:11pockets may spoil it.

00:25:12They can alter

00:25:13the item's shape

00:25:14either in the warehouse

00:25:15or already on

00:25:16the retail rack.

00:25:18The solution?

00:25:19Getting rid of the pockets

00:25:20in key areas.

00:25:22Plus,

00:25:22fake pockets

00:25:23are obviously cheaper

00:25:24and they don't get

00:25:25stretched out.

00:25:28The thermos

00:25:29wasn't actually invented

00:25:30to keep your coffee warm.

00:25:32It was made

00:25:33by a Scottish scientist

00:25:34who wanted a safe place

00:25:35to keep his chemicals

00:25:36at a stable temperature.

00:25:38So,

00:25:39he took two bottles,

00:25:41put the smaller one

00:25:41inside the bigger bottle

00:25:43and vacuumed out

00:25:44with the air between them.

00:25:48Here's how you can protect

00:25:50your bank card

00:25:50from potential fraudsters.

00:25:52Use a marker

00:25:53and cover the last four digits.

00:25:55You can also use a sticker

00:25:56that's easy to remove

00:25:57and place it over

00:25:58the security code.

00:26:00Have you had a houseguest

00:26:01that didn't use a coaster?

00:26:03Get a hair dryer

00:26:04and hold it a couple of inches

00:26:05away from the stain.

00:26:06Blow it on medium heat

00:26:08for a couple of minutes

00:26:09to evaporate the watermark.

00:26:10If a faded ring remains,

00:26:12mix equal amounts

00:26:13of vinegar and olive oil

00:26:14in a bowl.

00:26:15Wipe it onto the marked area

00:26:16and rub it in

00:26:17until the stain disappears.

00:26:19Then wipe it off.

00:26:20Don't waste time

00:26:21scrubbing the burnt stains

00:26:23off the bottom of a pan.

00:26:24Instead,

00:26:25fill it with water

00:26:26and add three tablespoons

00:26:27of salt.

00:26:28Let it sit overnight

00:26:29as the salt dissolves

00:26:30the burnt marks.

00:26:31And in the morning,

00:26:32pour the water

00:26:33out of the pan.

00:26:34This way,

00:26:35it will be much easier

00:26:36to scrub all that grease off.

00:26:38Picture this.

00:26:39You're on vacation

00:26:40and your shirt

00:26:41has become all crinkled

00:26:42inside the luggage.

00:26:43You need it tonight,

00:26:44but the hotel

00:26:45doesn't have an iron.

00:26:46Don't panic.

00:26:47Hang the shirt up

00:26:47in the bathroom

00:26:48and while you relax

00:26:49in a hot shower,

00:26:50the heat and moisture

00:26:51will unwrinkle your shirt.

00:26:53It won't be perfect,

00:26:54but it will get much better

00:26:55without any effort.

00:26:56The football is on

00:26:58and it turns out

00:26:59you've run out

00:26:59of standard batteries.

00:27:01You can use

00:27:01a smaller battery instead

00:27:03that easily fits inside.

00:27:05Now take some aluminum foil

00:27:06and crunch it up.

00:27:08Fit it into the gap

00:27:09on the negative

00:27:09or flat end of the battery.

00:27:11All done.

00:27:12You can turn on the TV now.

00:27:14Once your flip-flops crack

00:27:16and the plug easily slips

00:27:17out of the hole,

00:27:18it's normally a sign

00:27:19that you need a new pair,

00:27:20but there's a way

00:27:21to extend their mileage.

00:27:23Push the plug

00:27:24back through the hole,

00:27:25then take a bread clip

00:27:26and attach it to the end.

00:27:28The clip will provide

00:27:29enough support

00:27:29for the plug

00:27:30to remain in place.

00:27:31You've received a package

00:27:33and the receipt

00:27:34is taped on.

00:27:35You've managed

00:27:35to detach it

00:27:36from the box,

00:27:37but how to separate

00:27:38the tape

00:27:39without ripping the paper?

00:27:40Hold both ends

00:27:41of the tape apart

00:27:42and by pulling it slowly,

00:27:44the tape stretches

00:27:45and separates itself

00:27:46from the paper

00:27:47without tearing it apart.

00:27:50Ziploc bags are perfect

00:27:51to keep things dry,

00:27:52but it would be great

00:27:53if they were larger.

00:27:54Take two

00:27:55and turn one of them

00:27:56inside out.

00:27:57They can now connect

00:27:58and work as one large bag

00:28:00big enough

00:28:01to protect a keyboard.

00:28:03There's no need

00:28:04to carry your keys

00:28:05in your hand

00:28:05when you go for a jog.

00:28:07Instead,

00:28:08put them inside your pocket,

00:28:09take a rubber band,

00:28:10then tie it around

00:28:11the pocket from the inside.

00:28:12This stops the keys

00:28:14from falling out.

00:28:16You've broken

00:28:16your key in the door.

00:28:18It's stuck.

00:28:19Great.

00:28:20Arranging for a locksmith

00:28:21could cost up to $100,

00:28:23but for a cheaper

00:28:24and quicker option,

00:28:25try using a hot glue stick.

00:28:27Heat the end

00:28:27with a lighter

00:28:28and once it's warm

00:28:29enough to melt,

00:28:29push the glue

00:28:30into the keyhole.

00:28:31The melted glue

00:28:33will enter the available space

00:28:34covering part of the key.

00:28:36Once it cools,

00:28:37it compresses

00:28:38and gains a strong hold

00:28:39of the key's end.

00:28:41Now,

00:28:41just pull it out.

00:28:44If you need to siphon liquid

00:28:45through a hose

00:28:46and want to avoid

00:28:47using your mouth,

00:28:48put one end in the liquid

00:28:49and hold the other upwards

00:28:50with your thumb

00:28:51closing the top.

00:28:52Now shake up and down.

00:28:54This jiggle motion

00:28:55pushes liquid upwards,

00:28:56a little each time.

00:28:58And once it reaches the top,

00:28:59lower the exit point

00:29:01and let gravity do the rest.

00:29:03You've left your keys

00:29:04locked inside the car.

00:29:05It's an older model

00:29:06with a roll-down window.

00:29:08You could get the coat hanger

00:29:09and begin the long process

00:29:10of finding the lock.

00:29:12Or use duct tape.

00:29:13Make about 20

00:29:14two-foot-long strands.

00:29:16Stick them onto the window,

00:29:18allowing enough room

00:29:18for the tape

00:29:19to grab onto

00:29:20at the bottom.

00:29:21Then with a friend,

00:29:22take the ends of the tape,

00:29:23holding them together,

00:29:24and pull downwards.

00:29:26The force will allow

00:29:27the window to lower enough

00:29:28that you can unlock the door.

00:29:30While drilling long screws

00:29:32into hardwood,

00:29:33your old drill

00:29:33might not have enough power,

00:29:35leaving them only halfway in.

00:29:37Before the drill gives up,

00:29:39get a block of wax

00:29:40and scrape the edges

00:29:41of the screws with it.

00:29:42The wax works like a lubricant,

00:29:44melting as it gets warm

00:29:45and providing easy entry

00:29:47for the screw.

00:29:48You're out camping,

00:29:50but you didn't bring anything

00:29:51to light the barbecue.

00:29:52Take a small plastic bag

00:29:54that won't leak,

00:29:54fill it up with water

00:29:55and close it tight,

00:29:57making a round bubble.

00:29:58Hold it over where you want

00:30:00to catch the light

00:30:00from the sun.

00:30:01The bag of water will work

00:30:03like a magnifying glass,

00:30:04starting up the barbecue,

00:30:06just as long as it's

00:30:07a sunny day.

00:30:08Missing a corkscrew

00:30:10or a cork breaking halfway?

00:30:12By using a stove lighter,

00:30:13heat the top of the bottle.

00:30:14The heat slightly expands the glass,

00:30:16and this forces the cork

00:30:18out the top.

00:30:19You've superglued

00:30:21your fingers again.

00:30:22Take some salt

00:30:23and pour it on top

00:30:23of your stuck fingers.

00:30:25Put your fingers into the water

00:30:26and slowly rub.

00:30:28The mixture will dissolve the glue

00:30:29and release you in no time.

00:30:32While hanging up a painting,

00:30:33it can be impossible

00:30:34to find that stubborn nail.

00:30:36Place a fork upside down

00:30:38and insert it

00:30:39so the nail is in between

00:30:40the middle fork teeth.

00:30:41The fork has provided

00:30:43a long arm

00:30:43that's separated from the wall,

00:30:45making it easier

00:30:46to slip the string

00:30:47of the painting over the nail.

00:30:49Once it's perfectly balanced,

00:30:51simply remove the fork.

00:30:54You need to put a cake

00:30:56into a container,

00:30:57but taking it out again later

00:30:58by lifting it up

00:30:59from the inside

00:31:00might ruin the cake.

00:31:01Put the lid upside down

00:31:03and place the cake

00:31:04on the lid.

00:31:05The base of the container

00:31:06is now the lid,

00:31:07making it much easier

00:31:09to access,

00:31:09slice by slice.

00:31:12Pour out water

00:31:13more efficiently

00:31:14from large jugs

00:31:15and bottles

00:31:15by swirling.

00:31:16This will make

00:31:17the liquid inside spin,

00:31:19creating a vortex.

00:31:20The vortex allows

00:31:21for the air

00:31:22to flow back

00:31:22into the bottle

00:31:23as the water pours out,

00:31:25much faster

00:31:26than the glugging alternative.

00:31:29There's an easier

00:31:30and less messy way

00:31:31to remove eggshells

00:31:33from a boiled egg.

00:31:34Once fully boiled,

00:31:35crack the shell

00:31:36on both ends

00:31:36by tapping them.

00:31:37On one end,

00:31:39pinch off the shell.

00:31:40Use the opened end

00:31:41to blow with your mouth.

00:31:42The force of air

00:31:43will push the flesh

00:31:44and expand the eggshell,

00:31:46forcing out the egg

00:31:47undamaged.

00:31:50When the hinges

00:31:51of your laptop break,

00:31:52repairing them

00:31:52can cost up to $300.

00:31:55A far cheaper fix

00:31:56is to buy a picture frame

00:31:57and tape it

00:31:58to the back of the screen.

00:32:00You've dropped

00:32:01a small piece of jewelry

00:32:02on the floor,

00:32:03seemingly impossible to find.

00:32:05Take a stocking

00:32:06and place it

00:32:07over the end

00:32:07of the vacuum hose.

00:32:08Give the area

00:32:09a good vacuum

00:32:10and check the end

00:32:11periodically.

00:32:12You will eventually

00:32:13find it sitting

00:32:13at the end.

00:32:15You've drilled

00:32:16a hole in the wall,

00:32:17but the drill hole

00:32:18is now too wide.

00:32:19Remove the screw

00:32:20and find an object

00:32:21that is slightly shorter

00:32:22and thinner.

00:32:23Pieces of plastic,

00:32:24small wires,

00:32:25paper clips,

00:32:26or even toothpicks

00:32:27are perfect.

00:32:28Place whichever item

00:32:29you find inside the hole.

00:32:31It's filled the gap enough

00:32:32so the screw

00:32:33will now re-enter securely.

00:32:35Taking the trash out

00:32:36can put you

00:32:37in a gross scenario

00:32:38of getting bin juice

00:32:39on you.

00:32:39A great way

00:32:40to avoid this

00:32:41is by placing old papers

00:32:42at the bottom of the bag.

00:32:44Now,

00:32:44not only does it absorb

00:32:46all the liquids

00:32:47from the food

00:32:47and other sources,

00:32:48but also helps prevent

00:32:50bad smells

00:32:50from forming

00:32:51within a bin.

00:32:53Nobody likes mosquitoes,

00:32:54and pesticides

00:32:55are pricey.

00:32:56A cheap alternative

00:32:57is to take a plastic bottle

00:32:59and cut the top part off

00:33:00from the bottom

00:33:01of the funnel.

00:33:02After removing it,

00:33:03turn it upside down

00:33:04and put it inside the bottle.

00:33:06Mix 2 cups of warm water

00:33:08with 2 tablespoons of sugar.

00:33:10The mosquitoes

00:33:10will be attracted

00:33:11to the formula

00:33:12inside

00:33:13and become trapped.

00:33:14Now just sit back

00:33:15and relax

00:33:16without getting bitten.

00:33:19Okay,

00:33:20I know it's kind of cold

00:33:21to the touch,

00:33:22especially on a freezing

00:33:23winter's day,

00:33:23but did you know

00:33:24that brass doorknobs

00:33:25actually serve a purpose

00:33:26apart from looking

00:33:27classy and shiny?

00:33:28Since it's a copper alloy,

00:33:30brass has antimicrobial properties.

00:33:32That means

00:33:33it can help get rid

00:33:34of harmful germs

00:33:35and bacteria,

00:33:36sometimes in up to

00:33:37two hours.

00:33:38In high traffic areas,

00:33:40that's all the more useful,

00:33:41but since brass

00:33:42is much costlier

00:33:43than other metals

00:33:43like nickel

00:33:44and steel,

00:33:45you barely see

00:33:46these types of doorknobs

00:33:47anymore nowadays.

00:33:49Speaking of lovely

00:33:50multi-purpose items,

00:33:51most screwdrivers

00:33:52have a tiny little secret

00:33:53of their own.

00:33:54They can sometimes

00:33:55be slid through a wrench

00:33:56so that they can be used

00:33:57to create more torque

00:33:58when twisting,

00:33:59not to mention the uses

00:34:01when it comes to bolts

00:34:02in hard-to-reach places.

00:34:04There's a reason

00:34:05why buttons on women's shirts

00:34:06are for the left-handed

00:34:08and it has nothing

00:34:09to do with fashion.

00:34:10This practice dates back

00:34:11to the times

00:34:12when chambermaids

00:34:13were helping ladies

00:34:14dress themselves

00:34:15and it was easier

00:34:16for them to perform

00:34:17their job

00:34:17with this orientation.

00:34:19Having the buttons

00:34:20placed as such

00:34:21indicated a sign of wealth,

00:34:23so it's easy to imagine

00:34:24why the practice

00:34:25carried on,

00:34:26even though most people

00:34:27dress themselves nowadays.

00:34:29Next time you receive

00:34:30a package in your mail,

00:34:32take a look

00:34:32at your box cutter.

00:34:33If it features

00:34:34some diagonal lines

00:34:35on the blade,

00:34:36you're in for

00:34:37a little design perk.

00:34:38Turns out that

00:34:39these are blades

00:34:40that snap off.

00:34:41Continuously cutting

00:34:42cardboard can dull

00:34:43the sharp edge

00:34:44of the blade.

00:34:44To help prevent

00:34:45the need to buy

00:34:46a brand new box cutter,

00:34:48the top segment

00:34:48along the next line

00:34:49can be broken off

00:34:50to reach a new sharp edge.

00:34:52To do this,

00:34:53check out the small hole

00:34:55at the base of the tool,

00:34:56sometimes called

00:34:57the blade snapper.

00:34:58The people that first

00:35:00came up with

00:35:00this brilliant invention

00:35:01were engineers

00:35:02inspired by the way

00:35:03chocolate bars

00:35:04are segmented.

00:35:05Hold on a minute,

00:35:06don't throw away

00:35:07the cardboard package

00:35:08just yet.

00:35:08Most likely,

00:35:09you'll have some

00:35:10silica gel packet

00:35:11somewhere at the

00:35:12bottom of the box.

00:35:13Since this gel

00:35:14is basically a

00:35:15drying tool,

00:35:15it gathers up

00:35:16the moisture

00:35:16out of its environment

00:35:17so you can store

00:35:18these packets

00:35:19for further occasions.

00:35:20Whether you'll need

00:35:21to dry out your phone

00:35:22or some other

00:35:23electrical object,

00:35:25you can place them

00:35:25in a container

00:35:26next to the silica gel

00:35:27to reduce the damage.

00:35:29You don't have

00:35:30to be a mechanic

00:35:31to know when

00:35:31a standard car tire

00:35:32needs replacing

00:35:33since they come

00:35:34equipped with

00:35:35a neat indicator.

00:35:36Take a closer look

00:35:37and you'll see

00:35:38that treads

00:35:39within the tire

00:35:39are a bunch

00:35:40of rubber notches.

00:35:42When the treads

00:35:43are evened out

00:35:43with the perpendicular

00:35:44bars,

00:35:45it's a sign

00:35:45you need to book

00:35:46an appointment

00:35:47with your local

00:35:47car service.

00:35:48Since most likely

00:35:50the tires have lost

00:35:51most of their traction

00:35:52and may not be safe

00:35:53for driving any longer.

00:35:55The upper corners

00:35:56of a car windshield

00:35:57feature textured

00:35:58black dots

00:35:58melted into the glass edges.

00:36:00This neat add-on

00:36:02isn't there

00:36:02for design purposes.

00:36:04It's called

00:36:05frit glazing,

00:36:06which means

00:36:07that a special

00:36:08type of ceramic paint

00:36:09is added to the window

00:36:10for protecting

00:36:11its sealant

00:36:12from UV rays.

00:36:13It also conceals

00:36:15and creates

00:36:15a coarser surface

00:36:16for the adhesive used

00:36:17to set the window

00:36:18in place.

00:36:20Whenever you're up

00:36:21for a drive,

00:36:22check out

00:36:23if there's a small tab

00:36:24under your car's

00:36:25rear view mirror.

00:36:26Bet you didn't know

00:36:27it's there

00:36:28to help switch

00:36:29the mirror

00:36:29from daytime

00:36:30to nighttime views.

00:36:32It uses

00:36:33a prismatic

00:36:33glass technology

00:36:34to blur the reflection

00:36:36and reduce

00:36:36the glare

00:36:37of headlights

00:36:37behind you

00:36:38in traffic.

00:36:39People came up

00:36:40with these

00:36:41manually tilted mirrors

00:36:42in the 1930s,

00:36:43but they became

00:36:44standard somewhere

00:36:45in the 1970s.

00:36:47While you're in the car,

00:36:48check out the headrests,

00:36:49as you most likely

00:36:50don't know

00:36:51that they carry

00:36:52a little disguised purpose.

00:36:54Of course,

00:36:54they're adjustable

00:36:55to accommodate

00:36:56passengers of any height

00:36:57so that they get

00:36:58the proper support

00:36:58for their heads

00:36:59and necks.

00:37:00The hidden feature

00:37:01is that they are

00:37:02detachable

00:37:03and come with

00:37:03two very solid

00:37:05metal bars.

00:37:06Should you ever

00:37:07find yourself

00:37:08stuck in a car

00:37:08and need to make

00:37:09a fast getaway?

00:37:10These bars come in handy

00:37:12to crack out

00:37:13the car windows.

00:37:14So you're out

00:37:15for a drive

00:37:16and you're suddenly

00:37:16out of gas.

00:37:17What I'm about

00:37:18to describe

00:37:19sounds more like

00:37:19a meme

00:37:20than an actual

00:37:20situation bound

00:37:21to happen.

00:37:22But what if

00:37:23you're in such a hurry

00:37:24that you accidentally

00:37:25drive off

00:37:26with the gas nozzle

00:37:27still in the tank?

00:37:28Well,

00:37:29the nozzles

00:37:30have been designed

00:37:30to prevent

00:37:31any hazards

00:37:32from happening,

00:37:33rest assured.

00:37:34They feature

00:37:34a breakaway device

00:37:35that will allow

00:37:36the hose to separate

00:37:37when taken out

00:37:38with enough force.

00:37:40Initially designed

00:37:41in the early 20th century

00:37:42to be worn

00:37:43exclusively

00:37:44by basketball players,

00:37:46sneakers soon became

00:37:47one of those

00:37:47fashion fundamentals

00:37:48similar to jeans

00:37:49and leather jackets.

00:37:51If you take

00:37:51a closer look at them,

00:37:52you'll see they have

00:37:53two extra holes

00:37:54on the side,

00:37:55similar to the

00:37:56shoelace holes.

00:37:57They're manufactured

00:37:58as such

00:37:58not only to provide

00:38:00extra ventilation

00:38:00but to allow people

00:38:02to get extra creative

00:38:03with their laces

00:38:03when wearing the shoes.

00:38:05Admit it,

00:38:06you've always thought

00:38:07that chopsticks

00:38:07are merged at the end

00:38:08for the sole purpose

00:38:09of keeping them together

00:38:10until you're ready

00:38:11to dig into your meal.

00:38:13That may or may not

00:38:14be the whole truth.

00:38:15Under a more detailed

00:38:17inspection,

00:38:18the wooden tools

00:38:19feature a square-shaped end.

00:38:21Chopsticks manufactured

00:38:22like this

00:38:22date back to an

00:38:23old Japanese

00:38:24traditional design

00:38:25which can help

00:38:26with breaking

00:38:27the ends easily.

00:38:28The separated end

00:38:29can then be used

00:38:30as a resting block

00:38:31for the chopsticks

00:38:32to keep it more sanitized

00:38:34in hopes it can be used again

00:38:35since they won't be

00:38:36touching the table

00:38:37or any other surface.

00:38:39Women's bikes

00:38:40have a special design

00:38:41which, surprisingly,

00:38:43has a historical

00:38:44and fashionable purpose.

00:38:45The lower frame

00:38:47is for the most part

00:38:48meant to make up

00:38:48for the generally

00:38:49shorter height of ladies

00:38:50compared to that

00:38:51of the average gentleman.

00:38:53While that is the case

00:38:54for handlebars

00:38:55and saddles,

00:38:56the overall frame

00:38:57is lower

00:38:57for an additional purpose.

00:38:59Way back when women

00:39:00wore long skirts

00:39:01and dresses all day,

00:39:02every day they needed

00:39:03to make sure

00:39:04their outfits

00:39:05wouldn't get caught

00:39:05in the frame.

00:39:07That's how we came up

00:39:08with a lower-framed bicycle

00:39:09perfectly made for women

00:39:11and their needs

00:39:12at the time.

00:39:13The fact that

00:39:14toothpastes

00:39:15are multicolored

00:39:16is not just a nice perk

00:39:18to make dental hygiene

00:39:19more fun.

00:39:20There's a secret meaning

00:39:21related to each of the colors

00:39:22which dates back

00:39:23to the 1970s.

00:39:25In those days,

00:39:26people grew more

00:39:27and more interested

00:39:28in their oral health care

00:39:29and as such,

00:39:31they were looking

00:39:31for products

00:39:32which could do more

00:39:33than merely

00:39:34clean their teeth.

00:39:35One company

00:39:36was the pioneer

00:39:37in that regard,

00:39:38adding mouthwash

00:39:39to its toothpaste,

00:39:40meaning the blue strip.

00:39:41They later added on

00:39:43the red strip,

00:39:43meant to feature ingredients

00:39:45which helped

00:39:46with gum care.

00:39:47Speaking of toothpaste,

00:39:49check the cap

00:39:49next time you open

00:39:50a new tube.

00:39:51You may be in

00:39:52for a little surprise.

00:39:53There's a pointed cone shape

00:39:55inside the cap

00:39:56so you can puncture

00:39:57the seal of the toothpaste

00:39:58without cutting yourself

00:39:59or ruining your manicure.

00:40:01Not to mention,

00:40:02it's more hygienic

00:40:03since you won't be able

00:40:03to transfer germs

00:40:04or other bacteria

00:40:06into the product itself.

00:40:08On the subject

00:40:09of bathroom countertop items,

00:40:11toothbrushes come with

00:40:12a neat add-on

00:40:13hidden in the bristle patterns.

00:40:15Apart from making

00:40:16the toothbrush look cooler,

00:40:17they also do come

00:40:18with a practical purpose.

00:40:20Most toothbrushes

00:40:21come with a pattern

00:40:22of blue bristles

00:40:23intertwined with white ones.

00:40:25The blue dye

00:40:26is meant to fade out,

00:40:27signaling the time

00:40:28when you need

00:40:28to replace your toothbrush.

00:40:31Dentists say

00:40:31that toothbrushes

00:40:32should be replaced

00:40:33every three to four months,

00:40:35but it does serve

00:40:36as a great reminder

00:40:36in case you forget.

00:40:38Still love playing

00:40:39with Lego?

00:40:40Don't judge.

00:40:41Hey, it's a great hobby

00:40:42for all ages.

00:40:43Notice there's a hole

00:40:44on top of the Lego heads?

00:40:46Behold, you're looking

00:40:47at a safety feature

00:40:48that the people at Lego

00:40:49designed to prevent

00:40:51choking hazards.

00:40:52The most dangerous issue

00:40:54should a person

00:40:54swallow any of these pieces

00:40:56is the blocking

00:40:57of the airways.

00:40:58Designing a hole

00:40:59inside the Lego head

00:41:01helps the air

00:41:01to flow freely

00:41:02through the piece

00:41:03until it can be

00:41:04removed safely.

00:41:05We're now used

00:41:07to all sorts

00:41:07of modern light bulbs,

00:41:08some tubular,

00:41:09some shaped like diamonds,

00:41:11and some even

00:41:12twisted all together.

00:41:14Historically,

00:41:15light bulbs were round

00:41:16and the initial shape

00:41:17served a purpose

00:41:18in itself.

00:41:19It was mainly connected

00:41:20to the fact

00:41:21that glass bulbs

00:41:22were hand-blown,

00:41:23which gave them

00:41:23the round shape

00:41:24to begin with.

00:41:25The hidden practical reason

00:41:27was that the light bulb filament

00:41:28needed to be

00:41:29at the same distance

00:41:30from every surface

00:41:31of the glass sphere.

00:41:32The easiest way

00:41:33to achieve this

00:41:34was to make the glass

00:41:35in the shape of a globe.

00:41:38Okay,

00:41:39today I'll show you

00:41:40things you've never seen

00:41:42and tell you stuff

00:41:43you never knew.

00:41:44Wow,

00:41:45all in one video!

00:41:46What a bargain!

00:41:47For example,

00:41:48these soda fountain stations

00:41:49in fast food restaurants.

00:41:51We all see

00:41:51the nice side of it,

00:41:53but have you ever wondered

00:41:54where all this soda

00:41:55comes from?

00:41:56Let me take you

00:41:57behind the scenes.

00:41:58Ta-da!

00:41:59Turns out,

00:42:00it's a pile of boxes

00:42:01with tubes.

00:42:02So when the drink runs out,

00:42:04the employees change the box

00:42:05and plug the tube back in.

00:42:07Okay,

00:42:08let's peek into

00:42:09a couple more places

00:42:10where we normally

00:42:11don't belong.

00:42:13This is,

00:42:13for example,

00:42:14what you will see

00:42:15if you cut the screen

00:42:16of a Mac open.

00:42:17And here's what's hidden

00:42:19behind the dryers

00:42:20in a public laundromat.

00:42:21Today,

00:42:224 out of 5 households

00:42:23in the U.S.

00:42:24have a dryer,

00:42:25but they weren't

00:42:26so widely accessible

00:42:27when they first appeared

00:42:28in the 1950s,

00:42:29because they were

00:42:30way too expensive

00:42:31for the average homeowner.

00:42:33Now,

00:42:33grocery shopping

00:42:34isn't an uncommon practice,

00:42:36and we all have walked

00:42:37past dairy fridges

00:42:39a million times.

00:42:40But have you ever wondered

00:42:41what's behind them?

00:42:42Turns out,

00:42:43they're just shelves,

00:42:44and store employees

00:42:45stack the products

00:42:46from the other side.

00:42:47It makes perfect sense,

00:42:49but I never imagined

00:42:50it like this.

00:42:51Now,

00:42:52this photo shows

00:42:52what's behind

00:42:53the elevator button.

00:42:55Obviously,

00:42:55a bunch of cords.

00:42:56The buttons are all wired

00:42:58to a computer

00:42:59that manages the elevator.

00:43:00How does the computer

00:43:02know where the elevator

00:43:03is at a particular time?

00:43:04Well,

00:43:05there are several

00:43:06possible systems,

00:43:07but the most common one

00:43:08is a long vertical tape

00:43:10in the shaft

00:43:11with a series of holes.

00:43:12A sensor counts

00:43:13the number of holes

00:43:14that are passed,

00:43:15and that's how

00:43:16the location is determined.

00:43:18Okay,

00:43:19there are a couple

00:43:20of common things

00:43:21we all know,

00:43:22but the purpose of which

00:43:23remains a mystery to most.

00:43:25So,

00:43:25let me share

00:43:26these secrets with you.

00:43:28Those metal rivets

00:43:29on jeans

00:43:30have been there

00:43:30from the very beginning.

00:43:32Jacob Davis,

00:43:33the iconic man

00:43:34who made the first

00:43:35pair of jeans

00:43:36added copper rivets

00:43:37to places

00:43:38where pants

00:43:38are most likely to rip.

00:43:40Today,

00:43:41they have more

00:43:41of a decorative

00:43:42and distinctive purpose

00:43:43since they are

00:43:44a traditional attribute

00:43:45of the jeans

00:43:46everyone knows of.

00:43:48Now,

00:43:48I'll bet

00:43:49you know

00:43:49there are extra loops

00:43:50on some shoes.

00:43:51No,

00:43:52they're not for sweat

00:43:53or ventilation.

00:43:54Those are extra loops

00:43:55for laces,

00:43:56just like other loops

00:43:57you use.

00:43:58But they're there

00:43:59to tie your shoe

00:44:00around the ankle

00:44:01to prevent your foot

00:44:02from moving aside.

00:44:03That's especially

00:44:04helpful if you're

00:44:05hiking and ascending

00:44:06and descending

00:44:07hills and trails.

00:44:09Now,

00:44:09have you ever noticed

00:44:10those half-belt thingies

00:44:11many coats and jackets

00:44:13have at the back?

00:44:14Turns out,

00:44:15they first appeared

00:44:16on oversized

00:44:16military jackets,

00:44:18so the extra fabric

00:44:19could be collected

00:44:20on the back

00:44:20and the person

00:44:21doesn't stumble

00:44:22when working.

00:44:23Today,

00:44:24those belts

00:44:24are only added

00:44:25for the sake

00:44:26of style and tradition.

00:44:27Most clothing items

00:44:29you buy

00:44:29come with a small

00:44:30bag of fabric

00:44:31or a button

00:44:32or both.

00:44:33These are actually

00:44:34not useless.

00:44:35Buttons obviously

00:44:36can be replaced

00:44:37if you lost

00:44:38the original one.

00:44:39Pieces of fabric

00:44:40can serve two purposes.

00:44:42You can patch up

00:44:43the hole,

00:44:43but the main purpose

00:44:44is to provide you

00:44:45with a sample

00:44:46of cloth

00:44:47so you can use it

00:44:48to test different

00:44:49washing products

00:44:50on it

00:44:50and see what happens

00:44:51to the fabric.

00:44:53Now,

00:44:53pom-poms

00:44:54on woolen hats.

00:44:55Did you know

00:44:56that sailors

00:44:57were wearing hats

00:44:57with pom-poms

00:44:58in the 18th century

00:44:59to protect their heads

00:45:01in case they

00:45:02accidentally whacked them?

00:45:03Regular people

00:45:04were wearing them

00:45:05in Scotland

00:45:05and the color

00:45:06of the pom-pom

00:45:07signified the person's

00:45:09social status.

00:45:10People got back

00:45:11to wearing hats

00:45:11with those cute

00:45:12decorative items

00:45:13during the Great Depression.

00:45:14They're made of spare yarn,

00:45:16so it was a cheap way

00:45:17to decorate your hat.

00:45:19Now,

00:45:20if you haven't noticed,

00:45:21some sidewalks

00:45:22have little plates

00:45:23with bumps on them.

00:45:24Most people

00:45:25don't pay much attention

00:45:26to them,

00:45:26but they're very important

00:45:28for visually impaired people.

00:45:29It signals a slope

00:45:31that then leads

00:45:32to a crosswalk.

00:45:33Also,

00:45:34several patterns

00:45:35signal different things.

00:45:36Have you noticed

00:45:37that the icon

00:45:38of a gas tank

00:45:39on car dashboards

00:45:40has a little arrow

00:45:41next to it?

00:45:42Well,

00:45:43the arrow

00:45:43has a purpose.

00:45:44It points

00:45:45at the side of the car

00:45:46where the gas tank

00:45:47is located.

00:45:48Very useful

00:45:49for forgetful people

00:45:50like me

00:45:51who constantly wonder

00:45:52which side it is on

00:45:54and also for those

00:45:55who drive rentals

00:45:56once in a while.

00:45:57The answer

00:45:58is right in front

00:45:58of your eyes.

00:45:59If you can't find

00:46:00the arrow on your panel,

00:46:02then the fuel hose

00:46:03on the icon

00:46:03indicates the side instead.

00:46:06Now,

00:46:06on the back

00:46:07of many makeup

00:46:08and hygiene products,

00:46:09you'll find this symbol

00:46:11with a marking

00:46:11like 6M,

00:46:1212M,

00:46:13and 24M.

00:46:14This is the number

00:46:15of months

00:46:16this product can serve you

00:46:17before you should

00:46:18toss it out.

00:46:19You might know

00:46:20that whistles

00:46:21work perfectly fine

00:46:22even if they don't

00:46:23have that ball inside.

00:46:25And yet,

00:46:26they have it.

00:46:26But why?

00:46:27Even though there's

00:46:28a sound without the ball,

00:46:30the noise it creates

00:46:31is very flat

00:46:32and it's not

00:46:33distinguishable enough.

00:46:34When the whistle

00:46:35has a ball inside,

00:46:37then it starts moving

00:46:38with every blow,

00:46:39indicating different pitches

00:46:40and making the noise

00:46:41more noticeable.

00:46:43Lollipop sticks

00:46:44have those squared holes

00:46:46on the end of their sticks

00:46:47for a reason too.

00:46:48When the candy

00:46:49is put on the stick,

00:46:50some of it goes

00:46:51into the hole,

00:46:52fixating the candy part.

00:46:54This way,

00:46:55the candy ball

00:46:56or whatever shape

00:46:57is less likely

00:46:58to fall off the stick.

00:46:59Yeah,

00:46:59it's a bummer

00:47:00when that happens.

00:47:02Measuring tapes

00:47:02have that little

00:47:03metal stud

00:47:04on the end.

00:47:05Most people know

00:47:06that you can use it

00:47:07to stick it

00:47:07to the side

00:47:08of the surface

00:47:09you're measuring.

00:47:09But it's not

00:47:10the only cool thing

00:47:11about it.

00:47:12Look,

00:47:13there's also

00:47:13a small slot.

00:47:14And this slot

00:47:15can be used

00:47:16to hang it on a nail.

00:47:17Again,

00:47:18to free your hands

00:47:19and keep measuring.

00:47:20The bottom

00:47:21of the end

00:47:21of the tape

00:47:22has a ridged edge.

00:47:23It'll help you

00:47:24make a mark

00:47:25if you don't have

00:47:25a marking tool

00:47:26with you.

00:47:27Have you ever wondered

00:47:28why the taped blade

00:47:29is curved?

00:47:30Well,

00:47:31it helps to keep it

00:47:32rigid when extended.

00:47:34Pay a closer look

00:47:35at the blade.

00:47:36Apart from numbers

00:47:37and markings,

00:47:38there are also

00:47:39black diamonds.

00:47:40Those are there

00:47:41every 12.2 inches

00:47:43and they're useful

00:47:44for construction workers

00:47:45to space

00:47:46engineering joists.

00:47:47They can also

00:47:48be useful for you

00:47:49if you want to hang

00:47:50something heavy,

00:47:51for example.

00:47:52The diamond

00:47:53will mark

00:47:53the exact center

00:47:54of a stud

00:47:55which is placed

00:47:5616 inches apart

00:47:57from one another.

00:47:58And you can drill

00:47:59something to that center

00:48:01to make sure

00:48:01whatever you hang

00:48:02is safely attached.

00:48:04Now,

00:48:05most coins

00:48:06have ridges.

00:48:07And this is the legacy

00:48:08of the olden days.

00:48:09You see,

00:48:10back in the day,

00:48:11all coins were linked

00:48:12to a silver standard.

00:48:14The amount of silver

00:48:15used in the coin

00:48:15was proportionate

00:48:17to the value

00:48:17of the coin.

00:48:18So,

00:48:19the more actual

00:48:19silver was used

00:48:20to make the coin,

00:48:21the higher its value was.

00:48:23Hi-ho silver!

00:48:25Do you remember

00:48:25the Lone Ranger?

00:48:26Silver was the name

00:48:28of his horse.

00:48:29Eh,

00:48:29never mind.

00:48:30Anyway,

00:48:31all the coins

00:48:32had precious metal

00:48:33in them,

00:48:33and some people

00:48:34started shaving off

00:48:36a little bit of silver

00:48:37from it.

00:48:37It wasn't noticeable

00:48:38on one,

00:48:39but if done on several,

00:48:41people could get

00:48:42quite a bit

00:48:43of that precious metal.

00:48:44So,

00:48:45to prevent fraud,

00:48:46the edges were made

00:48:47with ridges

00:48:48for security reasons.

00:48:49So,

00:48:50if someone attempted

00:48:50to shave it off,

00:48:51the ridges would disappear

00:48:53and no one would accept

00:48:54that coin anymore.

00:48:55Smart!

00:48:56Today,

00:48:57no one makes coins

00:48:58out of silver,

00:48:59the coins just represent

00:49:00the value.

00:49:01But the ridges are

00:49:02kind of a cultural

00:49:03heritage now.

00:49:04And finally,

00:49:05a typical plastic

00:49:06milk jug

00:49:07often has inverted

00:49:08circles on one

00:49:10or more of the sides.

00:49:11Not like alien

00:49:12crop circles,

00:49:13this dimple is there

00:49:14to make the jug

00:49:15more resistant

00:49:16and to prevent it

00:49:17from erupting

00:49:18in case the jug

00:49:19falls on the floor.

00:49:20The dimple gives

00:49:21some more space

00:49:22for the liquid

00:49:22to expand.

00:49:24Also,

00:49:24as the expiration

00:49:25date approaches,

00:49:26the microbes

00:49:27in the milk

00:49:28start to expel

00:49:28some gases.

00:49:29As there are more

00:49:30of them trapped inside,

00:49:32the pressure

00:49:32in the jug

00:49:33is rising.

00:49:34The dimple

00:49:34takes care

00:49:35of the expansion

00:49:36and prevents

00:49:37the jug

00:49:37from exploding.

00:49:38And the cows

00:49:39are utterly delighted

00:49:41that their hard work

00:49:42is not wasted.

00:49:47Some pieces

00:49:48of clothing

00:49:48come with a small

00:49:49patch of fabric

00:49:50with a button

00:49:51on it.

00:49:51While it's quite obvious

00:49:53how to use the button,

00:49:54the fabric's purpose

00:49:55isn't so apparent.

00:49:56It's not there

00:49:57to patch holes.

00:49:58You're supposed to test

00:49:59your cleaning products

00:50:00on it.

00:50:01Then,

00:50:02if something goes wrong,

00:50:03you won't ruin

00:50:04the whole garment.

00:50:05The seemingly

00:50:06random dime-sized hole

00:50:07in the elevator door

00:50:08is actually

00:50:09a keyhole.

00:50:10If the elevator doors

00:50:11get stuck,

00:50:12an operator

00:50:13can open them

00:50:14manually

00:50:14by inserting

00:50:15a special key

00:50:16in this hole.

00:50:17The same tool

00:50:18is used

00:50:18when an elevator

00:50:19needs routine maintenance.

00:50:21Some plastic milk

00:50:22containers have

00:50:23dents in their sides

00:50:24that serve several

00:50:25purposes.

00:50:26For one,

00:50:26if milk spoils,

00:50:28this process

00:50:28can cause swelling

00:50:29and high-pressure buildup

00:50:30inside the container.

00:50:32That's when the dent

00:50:33comes in handy.

00:50:34It pops out

00:50:35and doesn't let

00:50:36the jug blow up.

00:50:37Plus,

00:50:37if you decide

00:50:38to freeze the milk,

00:50:39it'll expand

00:50:40like any other liquid.

00:50:41And then again,

00:50:42the indentation

00:50:43will pop out

00:50:44and prevent the container

00:50:45from bursting

00:50:45inside the freezer.

00:50:47A first-timer

00:50:48might think

00:50:49that Chinese takeaway boxes

00:50:50have a peculiar shape.

00:50:52The more experienced

00:50:53diners know

00:50:54that by unfolding

00:50:55the sides

00:50:56of these containers,

00:50:57you get a paper plate

00:50:58with the food

00:50:59already sitting on top.

00:51:01The lines

00:51:01on plastic solo cups

00:51:03can help you measure out

00:51:04liquids and non-liquids, too.

00:51:06From the bottom up,

00:51:06those lines coincide

00:51:08with the measurements

00:51:08of 1, 5, and 12 ounces.

00:51:11The lowermost line

00:51:13is the perfect portion

00:51:14of mouthwash.

00:51:15The middle one

00:51:16is a serving of cereal

00:51:17for breakfast.

00:51:18And the topmost

00:51:19is the amount of water

00:51:20recommended to drink

00:51:21four to five times a day.

00:51:24Striped toothpaste

00:51:25will always come out

00:51:26in stripes

00:51:27even if you mash the tube

00:51:28with all your strength.

00:51:29No magic involved, though.

00:51:31The product

00:51:32is very dense

00:51:33and viscous,

00:51:34so it doesn't mix well.

00:51:35The white,

00:51:36blue,

00:51:36and red parts

00:51:37of the toothpaste

00:51:37are pushed down

00:51:38at an even rate

00:51:39thanks to their

00:51:40similar physical properties.

00:51:42And viscosity

00:51:43helps the stuff

00:51:44be pushed down

00:51:45and out

00:51:45from the edges first,

00:51:47so no matter

00:51:47how hard you try,

00:51:49there will always be

00:51:50those perfect stripes.

00:51:52Not every iPhone owner

00:51:53pays attention

00:51:54to an almost

00:51:55unnoticeable little hole

00:51:57between the camera

00:51:57and the flash.

00:51:58It's the gadget's

00:52:00second microphone.

00:52:01Its role

00:52:02is to block

00:52:02outside noises

00:52:03when you're filming a video.

00:52:05This microphone

00:52:06also makes the sound

00:52:07clearer.

00:52:07Use it when you're

00:52:08on the phone

00:52:09in a noisy place.

00:52:11Dental floss

00:52:11can slip out

00:52:12from your fingers

00:52:13and tangle.

00:52:14To avoid such problems,

00:52:15tear off a piece

00:52:16and floss

00:52:16and tie its two ends

00:52:18together.

00:52:18It will be much easier

00:52:20to use

00:52:20and won't hurt your hands.

00:52:23Most frying pans

00:52:24have holes

00:52:24in their handles.

00:52:25You can use it

00:52:26to hang the thing

00:52:27on a hook on the wall,

00:52:28but that's not

00:52:28its original purpose.

00:52:30When you're cooking

00:52:30something in the pan,

00:52:32the hole in the handle

00:52:33is there to hold

00:52:33your messy spoon.

00:52:35It's especially important

00:52:36for plastic utensils

00:52:37because you can't leave

00:52:38them in the pan for long

00:52:39since they can melt.

00:52:42Some toothpicks

00:52:43have several grooves

00:52:44on the blunt end.

00:52:45When you need to use one,

00:52:47break off the grooved end

00:52:48and put it on the table.

00:52:49It'll serve as a rest

00:52:51to keep your toothpick

00:52:52from touching the surface.

00:52:54You've probably noticed

00:52:55that most soft-rink lids

00:52:57have ridges

00:52:58and three bumps on them.

00:52:59With their help,

00:53:00the lid can turn

00:53:01into a coaster

00:53:01once you put it

00:53:02on the table

00:53:02and place the cup

00:53:03on top of it.

00:53:04No more spillage.

00:53:06Bath foam

00:53:07isn't only for fun

00:53:08or a nice smell.

00:53:10It also helps

00:53:11regulate the temperature.

00:53:13The bubbles

00:53:14keep the water hot

00:53:15so you can enjoy

00:53:15a bath a bit longer.

00:53:17Anyway,

00:53:18it works for acrylic

00:53:19bathtubs only.

00:53:20Those made of metal

00:53:21lose heat really fast

00:53:22either way.

00:53:23Almost all measuring tapes

00:53:25have a metal tip

00:53:26with a small slot

00:53:27on the end.

00:53:28You can use this slot

00:53:29to hang the tape

00:53:30on a nail

00:53:31or a screw

00:53:31to make measurements

00:53:32without anyone's help.

00:53:34Sometimes this tip

00:53:35has a row of sharp points

00:53:36along the edge

00:53:37on one side.

00:53:38That comes in handy

00:53:39when you want to leave a mark

00:53:40without using a pencil.

00:53:43A pack of cotton pads

00:53:45has those strings on it

00:53:46so we could hang it

00:53:47on some hook or holder.

00:53:49And no,

00:53:50there's no need

00:53:50to untighten

00:53:51and tighten the pack again.

00:53:52Look at the bottom

00:53:53of the pack.

00:53:54It has a perforated line.

00:53:56Tear along that

00:53:57and now you're good

00:53:58to pull out

00:53:59a cotton pad.

00:54:00A triple handle

00:54:01on a jerry can

00:54:02is there to make it easier

00:54:03for two people

00:54:04to carry it

00:54:04and distribute

00:54:05the fuel evenly.

00:54:06Gas cans often

00:54:07have a second hole

00:54:08that actually needs

00:54:09to be uncapped too

00:54:10before you pour the gas.

00:54:12The air passage

00:54:13will prevent it

00:54:14from pouring out.

00:54:16Lemons get juicier

00:54:17if you warm them up

00:54:18a little bit

00:54:18in the microwave.

00:54:19The heat softens

00:54:20the frozen membranes

00:54:21so the juice

00:54:22can flow out freely.

00:54:23More lemonade for you!

00:54:25When you buy

00:54:26some grated cheese

00:54:27get ready for a surprise.

00:54:29If the package says

00:54:30it contains cellulose

00:54:31it means that the cheese

00:54:32does contain wood pulp.

00:54:34Don't worry

00:54:35it's digestible.

00:54:37It's added to prevent

00:54:38the product from clumping.

00:54:41The expiration date

00:54:42on mineral water

00:54:43isn't about water

00:54:44going bad.

00:54:45Actually

00:54:45no water can spoil

00:54:47but the bottle can.

00:54:48Over time

00:54:49it starts leaking

00:54:50some chemicals

00:54:51that aren't quite safe.

00:54:53The spike in the cap

00:54:54of a tube of ointment

00:54:55or cream

00:54:56is there so you can

00:54:57puncture the tiny foil seal.

00:54:58No need to grab a toothpick

00:55:00or try to use your fingernails

00:55:01to peel it off.

00:55:03Post-it notes

00:55:04are supposed to be

00:55:05peeled off

00:55:05from the side

00:55:06like you're turning

00:55:07the page in a book.

00:55:08Most of us tear them

00:55:09from the bottom

00:55:10and that just creates

00:55:11a crease

00:55:11and makes the whole note

00:55:13less sticky.

00:55:15To prevent water

00:55:16from boiling over

00:55:17just lay a wooden spoon

00:55:18across the rim

00:55:19of the pot.

00:55:19It only works

00:55:20for a little while though.

00:55:21If the spoon's surface

00:55:22gets heated up

00:55:23to the boiling point

00:55:24the bubbles

00:55:25will just foam up

00:55:26and around it.

00:55:27That's why metal spoons

00:55:28won't do.

00:55:29They heat up too quickly.

00:55:31Some erasers

00:55:32have two colors

00:55:33and textures

00:55:34not for pen ink

00:55:35versus pencil lead

00:55:36but for different

00:55:37types of paper.

00:55:38You're supposed

00:55:39to use the blue side

00:55:40to remove pencil marks

00:55:41from heavy grades

00:55:42of paper.

00:55:44Most people

00:55:45use bobby pins

00:55:46upside down.

00:55:47The zigzagged part

00:55:48goes closer

00:55:49to your scalp.

00:55:50The texture

00:55:50keeps the hair

00:55:51and pin

00:55:51in place

00:55:52much better.

00:55:53And give your pins

00:55:54a spritz of hairspray

00:55:55before putting them in.

00:55:56They'll grip better.

00:55:58Ever notice

00:55:59the tiny second hole

00:56:00in the lid

00:56:00of your coffee travel mug

00:56:01or to-go cup?

00:56:03It's there

00:56:04to control

00:56:04how smoothly

00:56:05the liquid flows out

00:56:06from the drink hole.

00:56:07Without it

00:56:08the hot stuff

00:56:08would just glug out

00:56:09at you

00:56:10like milk from a jug.

00:56:11It also lets

00:56:12the steam escape

00:56:12so the high temperature

00:56:13and built-up pressure

00:56:15don't melt the lid

00:56:16or send it

00:56:16shooting off.

00:56:19Apples you buy

00:56:20at the supermarket

00:56:20were likely picked

00:56:21between August

00:56:22and November.

00:56:23After that

00:56:24they were covered

00:56:24in wax,

00:56:25hot air dried

00:56:26and stored

00:56:27in cool places.

00:56:28It takes the fruit

00:56:296 to 12 months

00:56:30to make it

00:56:31to fresh produce shelves.

00:56:33Sometimes

00:56:34you need to get away

00:56:35from your computer

00:56:36but don't want

00:56:36to keep logging back in.

00:56:38Put your mouse

00:56:39over the top

00:56:40of an analog watch.

00:56:41The mouse will perceive

00:56:42the ticking

00:56:43second hands movement

00:56:44and this will prevent

00:56:45your computer screen

00:56:46from turning black.

00:56:48When using a blender

00:56:49pour the liquids

00:56:50in at first.

00:56:51Only after adding

00:56:52your milk,

00:56:53coconut water

00:56:54or yogurt

00:56:54put the berries,

00:56:55fruit or spinach

00:56:56inside.

00:56:58Thanks to the holes

00:56:59in the bottoms

00:57:00of earphones

00:57:00air can circulate

00:57:02up and down

00:57:02through the speakers.

00:57:03It results

00:57:04in increased

00:57:04low frequencies.

00:57:06This makes

00:57:07the bass sound

00:57:07deeper

00:57:08and improves

00:57:09the overall

00:57:09sound quality.

00:57:11You can use

00:57:12metal loops

00:57:13on the sides

00:57:13of a grocery car

00:57:14to organize

00:57:14the space

00:57:15in your cart better.

00:57:16Hang your jacket

00:57:17on such a loop

00:57:18or put a bag

00:57:19of delicate items

00:57:20there like eggs

00:57:21or bread.

00:57:22This way your jacket

00:57:23won't get wrinkled

00:57:23and eggs

00:57:24won't get squished.

00:57:26The black lines

00:57:28on a basketball

00:57:28make the game

00:57:29easier to play.

00:57:31They're actually grooves

00:57:32helping you handle

00:57:33the ball.

00:57:34And since the players

00:57:35need to move

00:57:36around the court

00:57:37while dribbling

00:57:37or bouncing

00:57:38the ball,

00:57:39control is crucial.

00:57:40The black lines

00:57:41allow you to grip

00:57:43the ball better.

00:57:44You can also

00:57:45easily steer it

00:57:46in any direction

00:57:47once it's in your hand.

00:57:48If the basketball

00:57:49was smooth,

00:57:50you wouldn't be able

00:57:51to do it.

00:57:52By the way,

00:57:53pebbled dots

00:57:53that cover the outside

00:57:54of the ball

00:57:55serve the same purpose.

00:57:56The drawer

00:57:57at the bottom

00:57:58of your stove

00:57:58is there to keep

00:57:59your dishes warm

00:58:00when you cook

00:58:01large amounts of food.

00:58:02When one dish

00:58:03is in the oven,

00:58:04the already prepared

00:58:05ones are kept warm

00:58:06in the drawer below.

00:58:09Did you know

00:58:10that you can

00:58:10actually inflate

00:58:11a balloon

00:58:12without using

00:58:13your lungs?

00:58:14All you need

00:58:15is a plastic bottle,

00:58:16vinegar,

00:58:17baking soda,

00:58:18a funnel,

00:58:19a rubber band,

00:58:20and a balloon,

00:58:21of course.

00:58:23First,

00:58:23pull some baking soda

00:58:24into the balloon

00:58:25using your funnel.

00:58:27And now,

00:58:28pour the vinegar

00:58:29into the bottle.

00:58:30You don't need a lot.

00:58:32Just fill about

00:58:33a third of the bottle.

00:58:35Let's go ahead

00:58:35and put the balloon

00:58:36over the bottle.

00:58:38But don't tip the soda

00:58:39inside the vinegar yet.

00:58:41Secure the balloon

00:58:42with a rubber band

00:58:43and tip it over

00:58:44to make the soda

00:58:45fall into the vinegar.

00:58:47And now,

00:58:47you can step back

00:58:48and enjoy the show.

00:58:50When the baking soda

00:58:51and the vinegar

00:58:52are mixed together,

00:58:53they release CO2

00:58:54that will inflate

00:58:55the balloon.

00:58:57You can use

00:58:58the inflated balloon

00:58:59to show your friends

00:59:00another trick.

00:59:01Grab a comb

00:59:02and rub it

00:59:03on the surface

00:59:03of the balloon.

00:59:05Now,

00:59:05you can bend

00:59:05the water flow

00:59:06in your sink

00:59:07with static electricity

00:59:08using your brand new

00:59:10electrified comb.

00:59:11Just don't try

00:59:12brushing your hair.

00:59:14Can you really

00:59:16pierce a balloon

00:59:16without popping it?

00:59:18The answer

00:59:18is yes.

00:59:20You're going to need

00:59:21a skewer

00:59:22or a long needle,

00:59:23a balloon,

00:59:24petroleum jelly,

00:59:25and some courage.

00:59:26Scratch the balloon

00:59:27with your fingers

00:59:28and make it more flexible.

00:59:30Now,

00:59:31blow steadily

00:59:31into the balloon.

00:59:32Stop before blowing it

00:59:34to the full size.

00:59:36This will make the trick

00:59:37easier to perform.

00:59:38Put some petroleum jelly

00:59:39on the needle.

00:59:41Now,

00:59:41find this darker area

00:59:43near the knot

00:59:43where the balloon

00:59:44is less stretched

00:59:45and just pierce it

00:59:47all the way through

00:59:47the top

00:59:48like this.

00:59:50Balloons are made up

00:59:51of polymer chains.

00:59:52They're so tiny

00:59:53that they seem invisible

00:59:54to the human eye.

00:59:55This trick works

00:59:56because the polymer chains

00:59:58are less stretched

00:59:59on the neck of the balloon.

01:00:01It was enough room

01:00:02to allow the needle

01:00:03in between the chains

01:00:04without breaking them.

01:00:05But if you try

01:00:06the same technique

01:00:07on the sides

01:00:08of the balloon,

01:00:09it will definitely pop.

01:00:11By the way,

01:00:13hairspray actually helps

01:00:14keep the air

01:00:15in the balloon longer

01:00:16by sealing the surface.

01:00:17But if you apply

01:00:19hairspray

01:00:19on the outside

01:00:20of the balloon

01:00:21and then touch it

01:00:22when it's not yet dry,

01:00:23the balloon will shrivel.

01:00:25Isn't it magic?

01:00:28Beware,

01:00:29our next trick

01:00:30can make you

01:00:30question gravity.

01:00:32Pour some plain water

01:00:33into a glass bottle.

01:00:35Not much,

01:00:36about a quarter.

01:00:37Put the bottle

01:00:38in the microwave

01:00:39for a minute.

01:00:40Meanwhile,

01:00:41prepare a bowl

01:00:42with colored water

01:00:43to make the trick

01:00:44more visual.

01:00:45Take the bottle

01:00:46out of the microwave,

01:00:47turn it upside down

01:00:48and pour it

01:00:49into the colored water.

01:00:51The bottle will soon

01:00:52begin to fill with water.

01:00:54Can you guess why?

01:00:56The air expands

01:00:57when it's heated.

01:00:58The bottle

01:00:59and the air

01:00:59began to cool down

01:01:01and the air contracted

01:01:02which caused

01:01:03the water to move.

01:01:06Not only wizards

01:01:07can make things disappear.

01:01:09Fill a plastic container

01:01:11or transparent glass

01:01:12with sunflower oil.

01:01:14Dip a glass rod

01:01:16inside the oil.

01:01:17Can you see it now?

01:01:19Oil and glass

01:01:20bend light

01:01:21the same way

01:01:22because they have

01:01:22almost equal

01:01:23refractive indexes.

01:01:25Therefore,

01:01:26it's impossible

01:01:26to see how the wand

01:01:28bends light

01:01:28inside the oil.

01:01:30To make this trick

01:01:31even more epic,

01:01:33pour equal parts

01:01:34of water and oil

01:01:35inside a glass

01:01:36and dip the glass rod

01:01:38inside it.

01:01:39You'll see it

01:01:40in the water

01:01:40but it will disappear

01:01:42inside the oil.

01:01:44Have you seen

01:01:45this epic

01:01:46instant freezing trick?

01:01:48Here's how you can

01:01:49repeat it at home.

01:01:50Grab a small plastic

01:01:52bottle of clean

01:01:53drinking water.

01:01:54Leave it for about

01:01:55four hours

01:01:56to bring it

01:01:56to room temperature

01:01:57and now

01:01:58put it into a freezer

01:02:00and wait for

01:02:00an hour and a half.

01:02:02After that,

01:02:03take it out

01:02:03very carefully.

01:02:05Try not to shake it

01:02:06at all.

01:02:07Now,

01:02:07hit the bottle strongly

01:02:09or shake it

01:02:10and see what happens.

01:02:12Not only is red cabbage

01:02:14rich in fiber

01:02:15and vitamins

01:02:15but it's also

01:02:16pretty useful

01:02:17for homemade

01:02:18scientific experiments.

01:02:20Boil red cabbage

01:02:21in pure water

01:02:22and wait

01:02:23until the water

01:02:24gets colored.

01:02:25Red cabbage

01:02:26contains a chemical

01:02:27called anthocyanin.

01:02:29It changes color

01:02:31when it's mixed

01:02:31with an acid

01:02:32or a base.

01:02:33That's why

01:02:34if you mix your cabbage

01:02:35with water

01:02:35with different ingredients

01:02:36you'll get

01:02:37different colors.

01:02:39Bases like soda

01:02:40will make it blue

01:02:41but acids

01:02:42on the contrary

01:02:43will create

01:02:44reddish colors.

01:02:45You can prove it

01:02:46by adding some

01:02:47lemon juice

01:02:47to your cabbage water.

01:02:48The water

01:02:49will become pinkish.

01:02:52And if you add vinegar

01:02:53you'll get an even

01:02:54more vibrant pink color.

01:02:57If you have a juicer

01:02:59you can try

01:02:59the same experiment

01:03:00with red cabbage juice.

01:03:02Initially

01:03:03it will have

01:03:03a more vivid

01:03:04purple color

01:03:05but under the influence

01:03:06of additional liquids

01:03:08the color will change.

01:03:10Can you guess

01:03:11which color

01:03:11you'll end up with

01:03:12if you mix

01:03:13cabbage juice

01:03:13with bleach?

01:03:15It's almost transparent

01:03:16but still has

01:03:17a greenish yellow tinge.

01:03:20The next trick

01:03:21is very trendy

01:03:22among artists.

01:03:23Here's what you're

01:03:24going to need

01:03:25liquid soap

01:03:26cotton buds

01:03:27milk

01:03:27and acrylic paints.

01:03:29You can use

01:03:30food coloring

01:03:30for this tip.

01:03:32Pour a little bit

01:03:33of milk

01:03:33into a wide bowl

01:03:35or a plate.

01:03:35You don't need a lot.

01:03:37Then

01:03:37put a few drops

01:03:38of paint

01:03:39into the milk

01:03:40and now

01:03:41dip a cotton bud

01:03:42covered with soap.

01:03:43The patterns

01:03:44will begin to change.

01:03:46That's because

01:03:46the fatty molecules

01:03:47in the milk

01:03:48get attracted

01:03:49to the molecules

01:03:50of soap.

01:03:51When you're satisfied

01:03:52with the pattern

01:03:53you can put

01:03:54a sheet of paper

01:03:54on top of the milk

01:03:56and voila

01:03:57your abstract masterpiece

01:03:58is ready.

01:04:00In fact

01:04:01this technique

01:04:02is related

01:04:02to an ancient

01:04:03paper marbling

01:04:04called ebry.

01:04:06Artists

01:04:06created colorful patterns

01:04:08by sprinkling

01:04:09and brushing

01:04:09color pigments

01:04:10on a pan

01:04:10of oily water

01:04:12and then transformed

01:04:13those patterns

01:04:14on paper.

01:04:16friction

01:04:16helps people

01:04:17walk on the road

01:04:18instead of sliding

01:04:19on it

01:04:20and it also

01:04:20allows us

01:04:21to perform

01:04:22this cool experiment

01:04:23called

01:04:24floating rice.

01:04:26Fill a small

01:04:27plastic bottle

01:04:28with rice.

01:04:29You can use a funnel

01:04:30to make the task easier.

01:04:32Shake the rice

01:04:32for a while

01:04:33and now

01:04:34try to push

01:04:34a chopstick

01:04:35or a pencil

01:04:36inside the bottle.

01:04:37If you did

01:04:38everything right

01:04:39the stick

01:04:39will get stuck

01:04:40in the rice.

01:04:41You can also

01:04:42try using

01:04:43different types

01:04:43of grains

01:04:44and see

01:04:44what happens.

01:04:46Have you ever

01:04:47tried to put

01:04:48an ice cube

01:04:49into oil?

01:04:50Well

01:04:50you can try today.

01:04:52It will create

01:04:52these cute little

01:04:53drops that will

01:04:54fall into the

01:04:55bottom of the glass

01:04:56because they're

01:04:56heavier than oil.

01:05:00Here's an easy way

01:05:01to stick an ice cube

01:05:02to a string

01:05:03without any glue.

01:05:04Place an ice cube

01:05:06in water.

01:05:07Put a piece

01:05:07of string on top

01:05:08and sprinkle it

01:05:09with salt.

01:05:10You don't need much

01:05:11otherwise the ice

01:05:12will dissolve.

01:05:14A pinch is enough.

01:05:15Wait for one minute

01:05:17and then gently

01:05:18pull the string.

01:05:19And there you go

01:05:20the ice has stuck

01:05:21to the string.

01:05:24For this experiment

01:05:25you're going to need

01:05:26an empty

01:05:27clean soda can.

01:05:28Turn on the kettle

01:05:29and wait until

01:05:30it begins to boil.

01:05:32Carefully hold

01:05:33the can over the kettle

01:05:34using kitchen tongs.

01:05:36It will help fill

01:05:37it with hot steam.

01:05:38When the can

01:05:39is full of steam

01:05:40give it an ice bath.

01:05:41You can put it

01:05:43into a bowl

01:05:43with cold water

01:05:44and ice cubes.

01:05:46The can should

01:05:47wrinkle up

01:05:48right away.

01:05:48That's because

01:05:49the volume inside

01:05:50the can decreases

01:05:52reducing its pressure

01:05:53and allowing the

01:05:54external pressure

01:05:55to crush the can.

01:05:57The next trick

01:05:58is also about

01:05:59air pressure.

01:06:00You're going to need

01:06:01a glass bottle,

01:06:02a small piece of paper,

01:06:03a lighter,

01:06:04and a peeled,

01:06:05boiled egg.

01:06:06The diameter

01:06:07of the bottleneck

01:06:08should be less

01:06:09than the width

01:06:10of the egg

01:06:10and it's important

01:06:12to use glass

01:06:13because plastic

01:06:14can melt.

01:06:15Now carefully

01:06:16light the paper,

01:06:18let it burn a little bit

01:06:19and drop it

01:06:20inside the bottle.

01:06:21Put the egg

01:06:22on the neck

01:06:23of the bottle.

01:06:24It should begin

01:06:25to bounce

01:06:25and soon

01:06:26the pressure of air

01:06:28will push the egg

01:06:29into the bottle.

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