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Discover the surprising engineering secret behind retro pink toilet paper! This unique vintage product is not just a design relic; it plays a crucial role in plumbing. Join us as we unveil how its special composition allows for faster drainage and helps locate hidden blockages in your pipes. Watch our live experiment to see this fascinating process in action!
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00:01What's hiding inside Coca-Cola cans and regular household batteries?
00:05Why do magnets affect breakfast cereals?
00:08Do crosswalk buttons actually work or are they just useless decorations?
00:14What does that USB symbol really mean?
00:17I'm not sure I know the answers to these and similar questions,
00:21but I'm eager to learn the truth together with you.
00:24Let's find it out.
00:26Coca-Cola cans have a secret few people know about.
00:30Here's a Coke can.
00:31Let's submerge it in a highly corrosive alkaline solution.
00:35The aluminum dissolves due to a process known as hydrolysis,
00:39and we can see a plastic liner inside the can.
00:42It's made from a polymer or epoxy resin
00:45and serves as some kind of a protective barrier
00:48between the aluminum walls of the can and the rather acidic soda.
00:53Despite a popular myth, household batteries don't actually contain liquid,
00:58and if you accidentally cut them open, no toxic liquid will spill.
01:02Most of them are dry cell batteries which are made of electrochemical cells.
01:06Those convert chemical energy into electrical energy.
01:10Larger batteries often house numerous small cells within them too.
01:14Even Tesla vehicle batteries consist of multiple small cells.
01:18When combined, they easily provide the necessary voltage.
01:24Most toothbrushes have differently colored bristles,
01:27but they aren't just pleasing to the eye.
01:29Those bristles, often blue, have a functional purpose.
01:32They're called toothbrush indicators,
01:34and their colors fade as you use the brush.
01:37The American Dental Association recommends changing your toothbrush
01:40at least four times a year.
01:43And by getting paler,
01:44these bristles help you figure out when it's time to replace your toothbrush.
01:49You'll probably agree that there's no better snack than a pack of chips.
01:53Some are flat, others have ridges.
01:55Is it just aesthetics?
01:57Not really.
01:58The main purpose of those lines on some kinds of chips
02:01is to help with the distribution of spices and seasonings.
02:04In other words,
02:05all those substances that make your chips taste like cheese
02:08are mostly stored inside the lines.
02:11Plus, the lines make chips crunchier.
02:15Now, this one might be a surprise,
02:17but some breakfast cereals are magnetic.
02:19That's because they're often fortified with iron
02:22in the form of a fine powder.
02:24Due to the added iron,
02:26cereal flakes get attracted to magnets.
02:28All this may sound kind of alarming,
02:30but in reality,
02:31the iron content in the flakes is minimal
02:33and doesn't pose any threat to your health.
02:37That clear fluid in gel pens
02:38is called the ink follower or stopper fluid.
02:41The gel in such pens contains pigment particles
02:44dissolved in a polymer solution.
02:47The main task of the stopper fluid
02:49is to be a barrier
02:50to prevent the gel from evaporating or leaking out.
02:53Without this transparent fluid,
02:55your gel pen wouldn't function.
02:58The fluid always stays in one position
03:00and doesn't get dissolved with the gel.
03:02Neither does it move backwards
03:04or flow out of the pen.
03:07Many pedestrian crosswalk buttons,
03:09namely in New York,
03:11are placebo buttons.
03:12They do literally nothing when you press them.
03:15Originally, they were functional
03:17after being introduced in 1964,
03:19but today,
03:20most of them don't affect traffic lights,
03:22which are programmed
03:22based on the real needs of the traffic flow.
03:26Why do such buttons even exist then?
03:28It's a simple psychological trick,
03:30providing you with an illusion of control.
03:34You might have noticed
03:35that movie theater seats
03:36are almost always red.
03:39This choice isn't random.
03:40It has strategic importance,
03:42which is rooted in visual science.
03:44The thing is,
03:46red light has a longer wavelength.
03:47It means that it's the first color
03:49to disappear in low light.
03:51It allows the audience
03:52to concentrate better on the screen
03:53once the movie begins.
03:55Such a design choice
03:56enhances the viewing experience
03:58by minimizing distractions.
04:01Speed bumps are crucial
04:02for pedestrian safety,
04:04but at the same time,
04:05they can seriously increase car emissions
04:07due to the non-stop acceleration
04:09and deceleration they cause.
04:13To address this issue,
04:14some cities like London
04:15are testing fake speed bumps.
04:17Those are optical illusions
04:19painted on the road.
04:20They look raised
04:22from a driver's perspective,
04:23but in reality,
04:24they're flat.
04:25Authorities hope that this approach
04:27will slow down drivers
04:28without having a negative impact
04:30on the environment.
04:33Soda bottles are always filled
04:35in such a way
04:36that there's some space
04:37between the liquid and the cap.
04:39That's because soda contains
04:40carbon dioxide.
04:41It's a gas that can expand
04:43once the bottle's heated.
04:44If there's no gap in the bottle,
04:46it can break
04:47because of the pressure
04:48building inside.
04:50Also, when you open your drink,
04:52the gases go out
04:52in the form of bubbles,
04:54making the drink overflow.
04:55The gap helps
04:57with this problem, too.
05:00The USB symbol,
05:01looking like a trident,
05:03has always sparked
05:04multiple speculations
05:05about its origin.
05:07One popular idea
05:08is that it represents
05:09Neptune's trident
05:11and symbolizes power
05:12and adaptability.
05:13But there's also
05:14a little bit less
05:16exciting theory.
05:17A man who claimed
05:18to have designed the symbol
05:19in the 1980s
05:20stated that it was supposed
05:21to represent connectivity.
05:23The large circle
05:24symbolizes a computer,
05:26while the attached shapes
05:27– the circle,
05:28the triangle,
05:29and square –
05:29stand for different outputs.
05:33The design of a tennis racket
05:35has a specific feature
05:36known as the throat.
05:38It's an open space
05:39below the head of the racket.
05:41This space isn't just
05:43for storing balls,
05:44it also improves
05:45the racket's aerodynamics
05:46by letting air pass through.
05:48It seriously reduces drag
05:50during swings.
05:52Speaking of tennis,
05:54tennis courts are usually
05:55built with a north-south
05:56orientation.
05:58It helps minimize
05:59the impact of the sun's
06:00position during the game,
06:01ensuring that neither player
06:03has the sun directly
06:04in their eyes.
06:06Look closely
06:07at a tram's overhead lines
06:09and you'll see
06:10that its contact wires
06:11zigzag back and forth
06:13instead of going
06:13in a straight line.
06:15That's because all trams
06:16have pantographs
06:17attached to their roofs.
06:19The upper part
06:20of the pantograph
06:21is gradually worn down
06:22by the overhead wire
06:23and eventually
06:24needs to be replaced.
06:26To wear it down evenly,
06:28the wire is not installed
06:29strictly along the tram's path,
06:32but in zigzag patterns.
06:34As the tram moves,
06:35the pantograph slides
06:37along the wire
06:37and it wears down evenly.
06:41Those cone-shaped
06:42water cooler cups?
06:44Their shape is
06:45intentionally designed
06:46to prevent users
06:47from setting the cups down.
06:48This allows employees
06:50to minimize the risk
06:51of spilling water
06:52on their desks
06:53around various
06:53electronic devices.
06:55Plus,
06:56less material is used
06:57to produce cone-shaped cups,
06:58which makes the process
06:59less wasteful
07:00and more cost-effective.
07:02It also kind of
07:04supports sustainability
07:05by encouraging people
07:06to drink their water quickly
07:07and dispose of their cups
07:08immediately after.
07:12Most suitcases
07:13have two zipper pulls,
07:14and it serves
07:15several purposes.
07:17First of all,
07:18if one zipper fails,
07:20the other can keep
07:21the suitcase closed.
07:22Even better,
07:23having two zippers
07:24allows you to have
07:25easier access
07:26to small sections
07:27of your suitcase
07:28without having to
07:29open it entirely.
07:31And finally,
07:32when you have two zippers,
07:33you can connect them
07:35with a padlock
07:35for increased security.
07:39Some plastic milk containers
07:41have dents
07:41on their sides.
07:42These dents
07:43serve several purposes.
07:45When milk spoils,
07:46it usually causes swelling
07:48and high-pressure buildup
07:49inside the container.
07:50That's when the dent
07:51pops out
07:52and doesn't let
07:52the jug blow up.
07:54Plus,
07:55if you decide
07:55to freeze the milk,
07:56it will expand
07:57like any other fluid.
07:59And then again,
08:00the indentation
08:01will pop out
08:02and prevent the container
08:03from breaking
08:04inside your freezer.
08:07If you ever had
08:08a problem figuring out
08:09why fake pockets exist,
08:11you need to hear this.
08:13The main reason
08:14is that if a clothing item
08:16has a specific cut
08:17or shape,
08:18pockets may spoil it.
08:19They can alter
08:20the item's shape
08:21either in the warehouse
08:22or already on
08:23the retail rack.
08:24The solution?
08:26Getting rid of the pockets
08:27in key areas.
08:28Plus,
08:29fake pockets
08:30are obviously cheaper
08:31and they don't get
08:32stretched out.
08:34The thermos
08:35wasn't actually invented
08:37to keep your coffee warm.
08:39It was made
08:40by a Scottish scientist
08:41who wanted a safe place
08:42to keep his chemicals
08:43at a stable temperature.
08:45So,
08:46he took two bottles,
08:47put the smaller one
08:48inside the bigger bottle,
08:49and vacuumed out
08:50the air between them.
08:55Many shirts
08:56have two buttons
08:57on the cuffs,
08:58but only one buttonhole.
09:00So,
09:01what is the second button for?
09:03Turns out,
09:04you can use it
09:05whenever you're wearing a watch,
09:06so the cuff is looser.
09:09Most clothing items
09:10you buy
09:11come with a small bag
09:12of fabric
09:12or a button
09:13or both.
09:15Buttons obviously
09:16can be used
09:17as a replacement
09:17if you lose
09:18the original ones.
09:20Pieces of fabric
09:20can be used
09:21to patch up a hole,
09:22but most importantly,
09:24it's a tester.
09:25You can use it
09:26to test different
09:27washing products on it
09:28and see what happens
09:29to the fabric.
09:31Some umbrellas
09:33have a tip at the top,
09:34and it turns out
09:35it's not just
09:36a pretty design.
09:38When going inside
09:39on a rainy day,
09:40you should just
09:41close your umbrella
09:41and tap the tip
09:42against the floor
09:43to drain the water
09:44faster and more effectively.
09:48Many backpacks
09:49have this diamond
09:50with two parallel
09:51cut-out slits
09:52on its front,
09:52and it's there
09:53for your comfort.
09:55You can attach
09:56something to it,
09:57like a water bottle
09:58or shoes.
09:59It comes especially handy
10:01if you travel somewhere
10:02or go hiking,
10:03so you don't have
10:04to hold your stuff.
10:06Okay,
10:07the next thing
10:08is gear loops,
10:09and probably
10:10from the name of it,
10:11you already have an idea
10:12what they're there for.
10:13You can strap in
10:14some useful gear
10:15you need to have with you,
10:17like trekking poles
10:18or shovels.
10:19Some gear will need
10:20to be secured
10:21to do it.
10:22Drop the handle
10:23through the loop
10:23and rotate it upward.
10:25Then,
10:26secure it with the elastic hook
10:27at the top,
10:28and you're golden.
10:30On the back
10:31of many makeup
10:32and hygiene products,
10:34you can find this symbol
10:35with a marking,
10:36like 6M,
10:3812M,
10:38and 24M.
10:40This is the number
10:42of months
10:42this product can serve
10:44after you open it
10:45and before you should
10:46throw it out.
10:48The two sides
10:49of a cotton pad
10:50are different
10:51because each of them
10:52has a particular purpose.
10:54A cotton pad
10:55has several layers
10:56to ensure that it's soft,
10:58strong,
10:58and can absorb liquids.
11:00The edge is stitched
11:02to hold it all together.
11:04The smooth side
11:05of a pad
11:05is for applying products,
11:07like tonics and lotions,
11:08and the embossed side
11:10is best for cleansing
11:11and makeup removal.
11:14Also,
11:15any pack of cotton pads
11:16has those strings
11:17on the sides.
11:18They're there
11:19so you can hang
11:20the package somewhere.
11:21Then,
11:22you can open the package
11:23at the bottom
11:24where the perforated line is
11:25and take them out.
11:28Did you know
11:29that there is an efficient way
11:30to pull a thread
11:31from yarn?
11:32When you pull
11:33from the outside,
11:34the yarn rolls away
11:35so you need to hold it.
11:36However,
11:37if you pull it
11:38from the center,
11:38it will stay together.
11:42We're all familiar
11:43with staplers,
11:44but I bet you don't know
11:45all its secrets.
11:47Most staplers
11:48have a compartment
11:48to store spare staples,
11:50which can be located
11:52either on top
11:52or at the bottom.
11:54Also,
11:55surprise!
11:56This metal plate
11:57you press staples against
11:58can be turned around.
12:00This way,
12:01the device will be able
12:02to staple your documents
12:03by turning the metal ends
12:04outwards.
12:07No need to wonder
12:08whether you need
12:09to get a smaller
12:09or bigger container.
12:11Turns out,
12:12plastic food containers
12:13have volume measurements
12:14on their bottoms,
12:15indicating how much food
12:16they can fit.
12:19Ceiling fans
12:20come with a small switch
12:21on the inside
12:22of the blade.
12:23You might not have noticed it
12:24because it's not
12:25in plain sight,
12:26so check yours out.
12:27This switch allows you
12:29to change the direction
12:30of rotation.
12:31Now,
12:32why would you want
12:33to do that?
12:34The blades of a fan
12:35push the air
12:36in different directions,
12:37depending on the way
12:39they rotate.
12:39In the summer,
12:41you need the air
12:42to be pushed down
12:43to create the effect
12:44of a breeze.
12:45In the winter,
12:46the direction should be changed
12:48so that the air
12:49is pushed towards
12:50the ceiling.
12:51It then heats up
12:52before going down
12:53the walls.
12:56Have you noticed
12:57that the gas tank sign
12:58on cars' dashboards
12:59has a little arrow
13:01next to it?
13:02Well,
13:02this arrow
13:03has a purpose.
13:04It points
13:05at the side
13:06of the car
13:06where the gas tank
13:07is located.
13:08It's very useful
13:09for forgetful people
13:10who constantly wonder
13:12where their gas tank is
13:13and also for those
13:14who drive rentals
13:15once in a while.
13:16The answer
13:17is right in front
13:18of your eyes.
13:19If you can't find
13:20the arrow
13:21on your panel,
13:22then the fuel hose
13:23on the icon
13:23indicates the side instead.
13:27All car tires
13:28have 12-digit numbers
13:30printed on them
13:31and they're actually
13:32important codes
13:33for car owners
13:33if they want
13:34to get the right tire.
13:36The first letter
13:37identifies the type
13:39of tire.
13:39P stands for a tire
13:41for light passenger cars
13:43and LT is for heavy vehicles.
13:46Then,
13:47the following numbers
13:48stand for the width
13:49of the tire,
13:50its radial,
13:50and its diameter.
13:53Measuring tapes
13:54have that metal stud
13:55on the end
13:56which you can use
13:57to attach the tape
13:58to the surface
13:59you measure.
14:00This way,
14:00you don't need
14:01to hold it yourself.
14:03But there's also
14:04a small slot
14:05which can be used
14:06to hang the tape
14:07on a nail,
14:08again to free your hands
14:09and keep measuring.
14:11The bottom of the end
14:13of the tape
14:14has a ridged edge.
14:15It will help you
14:16make a mark
14:17if you don't have
14:18a marking tool
14:18with you.
14:20On the tape,
14:21there are black diamonds
14:22that are placed
14:23every 19.2 inches.
14:26They're useful
14:26for construction workers
14:28when spacing
14:28engineering joists.
14:29They can also
14:31be useful for you
14:32if you want
14:33to hang something
14:34heavy,
14:34for example.
14:35The diamond
14:36will mark
14:36the exact center
14:38of a wooden joist.
14:39Those are placed
14:4016 inches apart
14:41from one another.
14:42There,
14:43you can drill
14:44something to that center
14:45to make sure
14:46whatever you hang
14:47is safely attached
14:48to the joist
14:49instead of the
14:49unreliable thin wall.
14:51Pictures will survive,
14:53but it's particularly
14:54important if you're
14:55hanging something heavy.
14:57Did you know
14:58that batteries
14:59have an expiration date?
15:02Yes,
15:02it's printed
15:03right on their label,
15:04but I've never
15:05noticed it before.
15:07The expiration date
15:08doesn't mean
15:09you can't use it
15:10after that.
15:11It's more like
15:12a recommended
15:13usage period,
15:14after which
15:15the manufacturer
15:16can't guarantee
15:17full battery life
15:18due to
15:19deteriorated
15:20components.
15:22These little feet
15:24keyboards have
15:25are actually
15:26a standard.
15:27The height
15:28of a keyboard
15:29should be adjustable,
15:30allowing the angle
15:31between 0 degrees
15:33and 15 degrees.
15:35The reason
15:36to fold the feet
15:37out
15:37is for you
15:38to see the keys
15:39better,
15:40in case you don't
15:41type blindly.
15:42A little problem
15:43that comes with it
15:44is that,
15:45in this case,
15:46your wrists
15:47are bent,
15:48and it's not good
15:49to keep them
15:50in this position
15:51for a long time.
15:54Pans have those
15:55holes on the ends
15:56of their handles.
15:57They're not just
15:58there for you
15:59to hang them.
16:00You can also
16:00place your cooking
16:01spoon in there.
16:03It'll hang
16:04right above the pan,
16:05and the sauce
16:06will not spill around.
16:08Make sure to
16:09tap off the sauce
16:10or food beforehand,
16:12though,
16:12so that it doesn't
16:13go down the spoon's
16:15handle.
16:17Stickers with numbers
16:18you can find
16:19on fruits
16:20can tell you
16:21some information
16:21on how the food
16:23was grown.
16:24A four-digit code
16:26that starts
16:27with a four
16:28means that the fruit
16:29was grown conventionally,
16:31meaning it contains
16:33chemicals and pesticides.
16:35So your best choice
16:37should be a fruit
16:37with a five-digit number.
16:39And if you see
16:41the number nine,
16:42it indicates
16:42that the fruit
16:43is certified organic.
16:46On the bottom
16:48of plastic bottles,
16:49you can often notice
16:51a mark of a triangle
16:52with a number
16:53engraved in the middle.
16:55This number
16:56specifies the type
16:58of plastic
16:58that was used
16:59to produce the bottle.
17:02These codes
17:02help people
17:03and local recycling
17:04centers
17:05to sort returns.
17:07Products that were
17:08made of plastic
17:09of types one
17:10and two
17:11are the easiest
17:12ones to recycle.
17:14Plastics of types
17:16three through seven
17:17are tougher
17:18to recycle.
17:21Here's how you can
17:22protect your bank
17:23card from potential
17:24fraudsters.
17:25Use a marker
17:26and cover the last
17:27four digits.
17:28You can also use
17:29a sticker that's
17:29easy to remove
17:30and place it
17:31over the security code.
17:33Have you had a house
17:34guest that didn't
17:35use a coaster?
17:36Get a hair dryer
17:37and hold it a couple
17:38of inches away
17:38from the stain.
17:39Blow it on medium
17:40heat for a couple
17:41of minutes to evaporate
17:42the watermark.
17:43If a faded ring
17:44remains, mix equal
17:46amounts of vinegar
17:47and olive oil in a bowl.
17:48Wipe it onto the
17:49marked area
17:49and rub it in
17:50until the stain disappears.
17:52Then wipe it off.
17:53Don't waste time
17:54scrubbing the burnt
17:55stains off the bottom
17:56of a pan.
17:57Instead, fill it
17:58with water
17:59and add three
17:59tablespoons of salt.
18:01Let it sit overnight
18:02as the salt
18:03dissolves the burnt marks.
18:04And in the morning,
18:05pour the water
18:06out of the pan.
18:07This way,
18:08it will be much easier
18:09to scrub all that
18:10grease off.
18:11Picture this.
18:12You're on vacation
18:13and your shirt
18:13has become all crinkled
18:14inside the luggage.
18:16You need it tonight,
18:16but the hotel
18:17doesn't have an iron.
18:19Don't panic.
18:19Hang the shirt up
18:20in the bathroom
18:21and while you relax
18:22in a hot shower,
18:23the heat and moisture
18:24will unwrinkle your shirt.
18:26It won't be perfect,
18:27but it will get much better
18:28without any effort.
18:29The football is on
18:31and it turns out
18:32you've run out
18:32of standard batteries.
18:34You can use a smaller
18:35battery instead
18:36that easily fits inside.
18:38Now take some aluminum foil
18:39and crunch it up.
18:40Fit it into the gap
18:42on the negative
18:42or flat end
18:43of the battery.
18:44All done.
18:45You can turn on
18:46the TV now.
18:47Once your flip-flops
18:48crack and the plug
18:49easily slips out
18:50of the hole,
18:51it's normally a sign
18:52that you need
18:53a new pair,
18:53but there's a way
18:54to extend their mileage.
18:56Push the plug
18:57back through the hole,
18:58then take a bread clip
18:59and attach it
19:00to the end.
19:00The clip will provide
19:02enough support
19:02for the plug
19:03to remain in place.
19:05You've received a package
19:06and the receipt
19:07is taped on.
19:08You've managed
19:08to detach it
19:09from the box,
19:10but how to separate
19:11the tape
19:11without ripping
19:12the paper.
19:13Hold both ends
19:14of the tape apart
19:15and by pulling it slowly,
19:17the tape stretches
19:18and separates itself
19:19from the paper
19:20without tearing it apart.
19:22Ziploc bags are perfect
19:24to keep things dry,
19:25but it would be great
19:26if they were larger.
19:27Take two
19:28and turn one of them
19:29inside out.
19:30They can now connect
19:31and work as one large bag,
19:33big enough
19:34to protect a keyboard.
19:36There's no need
19:37to carry your keys
19:38in your hand
19:38when you go for a job.
19:39Instead,
19:41put them inside
19:41your pocket,
19:42take a rubber band,
19:43then tie it around
19:44the pocket
19:44from the inside.
19:45This stops the keys
19:46from falling out.
19:48You've broken
19:49your key in the door.
19:50It's stuck.
19:51Great!
19:52Arranging for a locksmith
19:54could cost up to $100,
19:55but for a cheaper
19:57and quicker option,
19:58try using a hot glue stick.
19:59Heat the end
20:00with a lighter
20:01and once it's warm
20:02enough to melt,
20:02push the glue
20:03into the keyhole.
20:04The melted glue
20:05will enter the available
20:07space covering
20:08part of the key.
20:09Once it cools,
20:10it compresses
20:11and gains a strong hold
20:12of the key's end.
20:13Now,
20:14just pull it out.
20:16If you need to
20:17siphon liquid
20:18through a hose
20:19and want to avoid
20:20using your mouth,
20:21put one end in the liquid
20:22and hold the other upwards
20:23with your thumb
20:24closing the top.
20:25Now shake up and down.
20:27This jiggle motion
20:27pushes liquid upwards
20:29a little each time.
20:31And once it reaches the top,
20:32lower the exit point
20:34and let gravity
20:35do the rest.
20:36You've left your keys
20:37locked inside the car.
20:38It's an older model
20:39with a roll-down window.
20:41You could get the coat hanger
20:42and begin the long process
20:43of finding the lock
20:44or use duct tape.
20:46Make about 20
20:472-foot-long strands.
20:49Stick them onto the window,
20:51allowing enough room
20:51for the tape
20:52to grab onto
20:53at the bottom.
20:54Then with a friend,
20:55take the ends of the tape,
20:56holding them together,
20:57and pull downwards.
20:58The force will allow
21:00the window to lower enough
21:01that you can unlock the door.
21:03While drilling long screws
21:05into hardwood,
21:06your old drill
21:06might not have enough power,
21:08leaving them only halfway in.
21:10Before the drill gives up,
21:12get a block of wax
21:13and scrape the edges
21:14of the screws with it.
21:15The wax works like a lubricant,
21:17melting as it gets warm
21:18and providing easy entry
21:20for the screw.
21:21You're out camping,
21:22but you didn't bring anything
21:24to light the barbecue.
21:25Take a small plastic bag
21:26that won't leak,
21:27fill it up with water,
21:28and close it tight,
21:30making a round bubble.
21:31Hold it over where you want
21:33to catch the light
21:33from the sun.
21:34The bag of water will work
21:36like a magnifying glass,
21:37starting up the barbecue,
21:39just as long as it's a sunny day.
21:41Missing a corkscrew
21:42or a cork breaking halfway?
21:44By using a stove lighter,
21:46heat the top of the bottle.
21:47The heat slightly expands the glass,
21:49and this forces the cork
21:51out the top.
21:52You've superglued
21:53your fingers again.
21:55Take some salt
21:56and pour it on top
21:56of your stuck fingers.
21:58Put your fingers into the water
21:59and slowly rub.
22:00The mixture will dissolve the glue
22:02and release you in no time.
22:04While hanging up a painting,
22:06it can be impossible
22:07to find that stubborn nail.
22:09Place a fork upside down
22:10and insert it
22:11so the nail is in between
22:13the middle fork teeth.
22:14The fork has provided
22:15a long arm
22:16that's separated from the wall,
22:18making it easier
22:19to slip the string
22:20of the painting over the nail.
22:22Once it's perfectly balanced,
22:24simply remove the fork.
22:27You need to put a cake
22:28into a container,
22:30but taking it out again later
22:31by lifting it up
22:32from the inside
22:33might ruin the cake.
22:34Put the lid upside down
22:36and place the cake
22:37on the lid.
22:38The base of the container
22:39is now the lid,
22:40making it much easier
22:41to access,
22:42slice by slice.
22:45Pour out water
22:46more efficiently
22:47from large jugs
22:48and bottles
22:48by swirling.
22:49This will make
22:50the liquid inside spin,
22:51creating a vortex.
22:53The vortex allows
22:54for the air
22:55to flow back
22:55into the bottle
22:56as the water pours out,
22:58much faster
22:59than the glugging alternative.
23:02There's an easier
23:03and less messy way
23:04to remove eggshells
23:05from a boiled egg.
23:07Once fully boiled,
23:08crack the shell
23:09on both ends
23:09by tapping them.
23:10On one end,
23:11pinch off the shell.
23:13Use the opened end
23:14to blow with your mouth.
23:15The force of air
23:16will push the flesh
23:17and expand the eggshell,
23:18forcing out the egg
23:19undamaged.
23:22When the hinges
23:23of your laptop break,
23:25repairing them
23:25can cost up to $300.
23:28A far cheaper fix
23:29is to buy a picture frame
23:30and tape it
23:31to the back of the screen.
23:33You've dropped
23:34a small piece of jewelry
23:35on the floor,
23:36seemingly impossible to find.
23:38Take a stocking
23:39and place it
23:40over the end
23:40of the vacuum hose.
23:41Give the area
23:42a good vacuum
23:43and check the end
23:44periodically.
23:45You will eventually
23:45find it sitting
23:46at the end.
23:48You've drilled a hole
23:49in the wall,
23:50but the drill hole
23:50is now too wide.
23:52Remove the screw
23:53and find an object
23:54that is slightly shorter
23:55and thinner.
23:56Pieces of plastic,
23:57small wires,
23:58paper clips,
23:59or even toothpicks
24:00are perfect.
24:01Place whichever item
24:02you find inside the hole.
24:04It's filled the gap enough
24:05so the screw
24:06will now re-enter securely.
24:08Taking the trash out
24:09can put you
24:10in a gross scenario
24:10of getting bin juice
24:12on you.
24:12A great way
24:13to avoid this
24:14is by placing old papers
24:15at the bottom
24:16of the bag.
24:17Now,
24:17not only does it absorb
24:19all the liquids
24:20from the food
24:20and other sources,
24:21but also helps prevent
24:23bad smells
24:23from forming
24:24within a bin.
24:25Nobody likes mosquitoes,
24:27and pesticides
24:28are pricey.
24:29A cheap alternative
24:30is to take
24:31a plastic bottle
24:32and cut the top part off
24:33from the bottom
24:34of the funnel.
24:35After removing it,
24:36turn it upside down
24:37and put it inside the bottle.
24:39Mix two cups
24:40of warm water
24:40with two tablespoons
24:42of sugar.
24:42The mosquitoes
24:43will be attracted
24:44to the formula
24:45inside
24:45and become trapped.
24:47Now,
24:48just sit back
24:48and relax
24:49without getting bitten.
24:52Okay,
24:53I know it's kind of
24:54cold to the touch,
24:54especially on a
24:55freezing winter's day,
24:56but did you know
24:57that brass doorknobs
24:58actually serve a purpose
24:59apart from looking
25:00classy and shiny?
25:01Since it's a copper alloy,
25:03brass has antimicrobial properties.
25:05That means
25:06it can help get rid
25:07of harmful germs
25:07and bacteria,
25:08sometimes in up
25:09to two hours.
25:11In high traffic areas,
25:12that's all the more useful,
25:14but since brass
25:15is much costlier
25:16than other metals
25:16like nickel and steel,
25:18you barely see
25:19these types of doorknobs
25:20anymore nowadays.
25:21Speaking of lovely
25:22multi-purpose items,
25:24most screwdrivers
25:25have a tiny little secret
25:26of their own.
25:27They can sometimes
25:28be slid through a wrench
25:29so that they can be used
25:30to create more torque
25:31when twisting,
25:32not to mention the uses
25:33when it comes to bolts
25:35in hard-to-reach places.
25:37There's a reason
25:38why buttons on women's shirts
25:39are for the left-handed,
25:40and it has nothing
25:42to do with fashion.
25:43This practice dates back
25:44to the times
25:45when chambermaids
25:46were helping ladies
25:47dress themselves,
25:48and it was easier
25:49for them to perform
25:50their job
25:50with this orientation.
25:52Having the buttons
25:53placed as such
25:54indicated a sign of wealth,
25:56so it's easy to imagine
25:57why the practice
25:58carried on,
25:59even though most people
26:00dress themselves nowadays.
26:02Next time you receive
26:03a package in your mail,
26:04take a look
26:05at your box cutter.
26:06If it features
26:07some diagonal lines
26:08on the blade,
26:09you're in for
26:09a little design perk.
26:11Turns out that
26:12these are blades
26:12that snap off.
26:14Continuously cutting cardboard
26:16can dull the sharp edge
26:17of the blade.
26:17To help prevent the need
26:19to buy a brand new box cutter,
26:20the top segment
26:21along the next line
26:22can be broken off
26:23to reach a new sharp edge.
26:25To do this,
26:26check out the small hole
26:27at the base of the tool,
26:29sometimes called
26:30the blade snapper.
26:31The people that first came up
26:33with this brilliant invention
26:34were engineers inspired
26:35by the way chocolate bars
26:37are segmented.
26:38Hold on a minute,
26:39don't throw away
26:40the cardboard package
26:41just yet.
26:41Most likely,
26:42you'll have some silica gel
26:43packets somewhere
26:44at the bottom of the box.
26:46Since this gel
26:47is basically a drying tool,
26:48it gathers up the moisture
26:49out of its environment,
26:50so you can store these packets
26:52for further occasions.
26:53Whether you'll need
26:54to dry out your phone
26:55or some other electrical object,
26:57you can place them
26:58in a container
26:59next to the silica gel
27:00to reduce the damage.
27:02You don't have to be
27:03a mechanic to know
27:04when a standard car tire
27:05needs replacing
27:06since they come equipped
27:07with a neat indicator.
27:09Take a closer look
27:10and you'll see
27:11that treads within the tire
27:12are a bunch of rubber notches.
27:14When the treads
27:15are evened out
27:16with the perpendicular bars,
27:18it's a sign you need
27:19to book an appointment
27:20with your local car service.
27:21Since most likely,
27:23the tires have lost
27:23most of their traction
27:24and may not be safe
27:26for driving any longer.
27:28The upper corners
27:29of a car windshield
27:30feature textured black dots
27:31melted into the glass edges
27:33this neat add-on
27:34isn't there
27:35for design purposes.
27:36It's called
27:37Frit Glazing,
27:39which means
27:40that a special type
27:41of ceramic paint
27:42is added to the window
27:43for protecting its sealant
27:45from UV rays.
27:46It also conceals
27:47and creates
27:48a coarser surface
27:49for the adhesive used
27:50to set the window in place.
27:53Whenever you're up
27:54for a drive,
27:55check out
27:56if there's a small tab
27:57under your car's
27:58rear view mirror.
27:59Bet you didn't know
28:00it's there
28:01to help switch
28:01the mirror
28:02from daytime
28:02to nighttime views.
28:04It uses
28:05a prismatic glass technology
28:07to blur the reflection
28:08and reduce the glare
28:10of headlights behind you
28:11in traffic.
28:12People came up
28:13with these manually
28:14tilted mirrors
28:15in the 1930s,
28:16but they became
28:17standard somewhere
28:18in the 1970s.
28:20While you're in the car,
28:21check out the headrests
28:22as you most likely
28:23don't know
28:24that they carry
28:24a little disguised purpose.
28:26Of course,
28:27they're adjustable
28:28to accommodate
28:29passengers of any height
28:30so that they get
28:31the proper support
28:31for their heads and necks.
28:33The hidden feature
28:34is that they are detachable
28:35and come with two
28:36very solid metal bars.
28:39Should you ever find
28:40yourself stuck in a car
28:41and need to make
28:42a fast getaway?
28:43These bars come in handy
28:45to crack out
28:45the car windows.
28:47So you're out
28:48for a drive
28:48and you're suddenly
28:49out of gas.
28:50What I'm about to describe
28:52sounds more like a meme
28:53than an actual situation
28:54bound to happen.
28:55But what if
28:56you're in such a hurry
28:57that you accidentally
28:58drive off
28:59with the gas nozzle
29:00still in the tank?
29:01Well,
29:02the nozzles have been designed
29:03to prevent any hazards
29:05from happening,
29:05rest assured.
29:06They feature
29:07a breakaway device
29:08that will allow
29:09the hose to separate
29:10when taken out
29:11with enough force.
29:13Initially designed
29:14in the early 20th century
29:15to be worn exclusively
29:17by basketball players,
29:18sneakers soon became
29:19one of those
29:20fashion fundamentals
29:21similar to jeans
29:22and leather jackets.
29:23If you take a closer
29:25look at them,
29:25you'll see they have
29:26two extra holes
29:27on the side,
29:28similar to the
29:29shoelace holes.
29:30They're manufactured
29:31as such not only
29:32to provide extra ventilation
29:33but to allow people
29:34to get extra creative
29:36with their laces
29:36when wearing the shoes.
29:38Admit it,
29:39you've always thought
29:40that chopsticks
29:40are merged at the end
29:41for the sole purpose
29:42of keeping them together
29:43until you're ready
29:44to dig into your meal.
29:46That may or may not
29:47be the whole truth.
29:48Under a more detailed
29:50inspection,
29:51the wooden tools
29:51feature a square-shaped end.
29:53Chopsticks manufactured
29:55like this date back
29:56to an old Japanese
29:57traditional design
29:58which can help
29:59with breaking the ends easily.
30:01The separated end
30:02can then be used
30:03as a resting block
30:04for the chopsticks
30:05to keep it more sanitized
30:06in hopes it can be used again
30:08since they won't be touching
30:10the table
30:10or any other surface.
30:12Women's bikes
30:13have a special design
30:14which, surprisingly,
30:16has a historical
30:17and fashionable purpose.
30:18The lower frame
30:19is for the most part
30:20meant to make up
30:21for the generally shorter
30:22height of ladies
30:23compared to that
30:24of the average gentleman.
30:26While that is the case
30:27for handlebars and saddles,
30:29the overall frame
30:30is lower for an additional purpose.
30:32Way back when women
30:33wore long skirts
30:34and dresses all day,
30:35every day they needed
30:36to make sure their outfits
30:37wouldn't get caught
30:38in the frame.
30:40That's how we came up
30:41with a lower-framed bicycle,
30:42perfectly made for women
30:44and their needs
30:44at the time.
30:46The fact that toothpastes
30:48are multicolored
30:49is not just a nice perk
30:51to make dental hygiene
30:52more fun.
30:52There's a secret meaning
30:54related to each of the colors,
30:55which dates back
30:56to the 1970s.
30:58In those days,
30:59people grew more
31:00and more interested
31:01in their oral health care
31:02and as such,
31:04they were looking for products
31:05which could do more
31:06than merely clean their teeth.
31:08One company
31:09was the pioneer
31:10in that regard,
31:11adding mouthwash
31:12to its toothpaste,
31:13meaning the blue strip.
31:14They later added on
31:15the red strip,
31:16meant to feature ingredients
31:18which helped with gum care.
31:20Speaking of toothpaste,
31:21check the cap
31:22next time you open a new tube.
31:24You may be in
31:25for a little surprise.
31:26There's a pointed cone shape
31:28inside the cap
31:28so you can puncture
31:30the seal of the toothpaste
31:31without cutting yourself
31:32or ruining your manicure.
31:34Not to mention,
31:35it's more hygienic
31:35since you won't be able
31:36to transfer germs
31:37or other bacteria
31:39into the product itself.
31:41On the subject
31:42of bathroom countertop items,
31:44toothbrushes come
31:45with a neat add-on
31:46hidden in the bristle patterns.
31:48Apart from making
31:49the toothbrush look cooler,
31:50they also do come
31:51with a practical purpose.
31:53Most toothbrushes
31:54come with a pattern
31:55of blue bristles
31:56intertwined with white ones.
31:58The blue dye
31:59is meant to fade out,
32:00signaling the time
32:01when you need
32:01to replace your toothbrush.
32:04Dentists say
32:04that toothbrushes
32:05should be replaced
32:06every three to four months,
32:08but it does serve
32:08as a great reminder
32:09in case you forget.
32:11Still love playing with Lego?
32:13Don't judge.
32:14Hey, it's a great hobby
32:15for all ages.
32:16Notice there's a hole
32:17on top of the Lego heads?
32:19Behold,
32:19you're looking at
32:20a safety feature
32:21that the people at Lego
32:22designed to prevent
32:24choking hazards.
32:25The most dangerous issue
32:27should a person
32:27swallow any of these pieces
32:29is the blocking
32:29of the airways.
32:31Designing a hole
32:32inside the Lego head
32:33helps the air
32:34to flow freely
32:35through the piece
32:36until it can be removed safely.
32:38We're now used
32:39to all sorts
32:40of modern light bulbs,
32:41some tubular,
32:42some shaped like diamonds,
32:44and some even twisted
32:45all together.
32:47Historically,
32:47light bulbs were round
32:49and the initial shape
32:50served a purpose
32:51in itself.
32:52It was mainly connected
32:53to the fact
32:54that glass bulbs
32:55were hand-blown,
32:56which gave them
32:56the round shape
32:57to begin with.
32:58The hidden practical reason
33:00was that the light bulb filament
33:01needed to be
33:02at the same distance
33:03from every surface
33:04of the glass sphere.
33:05The easiest way
33:06to achieve this
33:07was to make the glass
33:08in the shape of a globe.
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