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Discover the fascinating hidden features of everyday objects that could transform your daily life! This video reveals ingenious design secrets, from the unexpected function of a pot handle to the clever use of a bottle cap. You’ll be amazed by how ordinary items can solve your everyday problems in unexpected ways. Don't miss the ultimate hidden feature that might just save you money!
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00:00Whether it's something as simple as a button on your jeans or something that's part of a larger moving mechanism,
00:06here are 26 secrets to everyday things you probably didn't know about.
00:12You use doorknobs every day, so it's right to be concerned about how many germs could be on them.
00:18However, they have made doorknobs out of brass partly for that reason.
00:23Brass provides an antimicrobial effect, eliminating the microorganisms that were hoping to start a colony on your doorknob.
00:31Your pants have that one-fifth pocket that's recognized as the small useless one.
00:36Originally, it was there to provide a safe place for your pocket watch, something that was necessary when first implemented
00:43in 1901.
00:44It then continued to remain for traditional purposes.
00:47However, it's still a great place to put your Tic Tacs.
00:50You've probably mistaken those little rivets on your jeans as some form of fashion statement, similar to the small pocket.
00:58In fact, they're incredibly important.
01:00They are there to provide extra support for areas that withstand the most strenuous parts of your clothing,
01:07preventing them from embarrassingly falling apart.
01:10That little button at the end of your seatbelt seems like it's way out of place.
01:15In fact, it's there to ensure your buckle will always remain at the end.
01:19So you won't have to awkwardly fiddle with your seatbelt every time you put it on.
01:24You're in a new car or a rental, and the gauge tells you the gas is getting low.
01:29You don't know which side the fuel cap is on from the inside.
01:32It can cause unnecessary effort at the gas station.
01:35However, your fuel gauge has an arrow that reminds you which side to fill your gas tank up from.
01:41Some models of cars may also have a gas tank hose instead, with the hose pictured on the side that
01:48the cap is on.
01:50Hiking and walking through snow requires the best kind of footwear.
01:54The shoes which are perfect for this also have an extra eyelet for your lace to loop through.
02:00Looping your laces through the extra eyelets will give more support for your ankles and feet,
02:05and will provide more stability as you walk.
02:08But as you walk, blisters are also a concern.
02:12The sweat in your shoe creates friction between the feet and the shoe, which then helps create the blisters.
02:20Antiperspirant that you use for your armpits will help keep the feet from sweating.
02:24Just make sure you use the clear one.
02:27Cooking for people is always nice.
02:30However, sometimes the guests are late.
02:33Yep, we're all guilty of that sometimes, right?
02:36The extra drawer under your oven, where you've been keeping all of your spare pots and pans,
02:41was actually made to keep your food warm.
02:44Great for those who are late to the meal.
02:47Ever wondered how long that padlock could possibly last when it's outside,
02:51in the rainy weather, keeping your bike safe?
02:54It has a little hole at the bottom of it.
02:57It's there to drain water to avoid corrosion on the inside.
03:01It also serves to provide oil, further prolonging its use.
03:06That hole in the elevator door isn't there to check who's inside,
03:10so you can avoid sharing a ride with specific people.
03:13It's a keyhole, in case it breaks down.
03:17Ketchup, sauce bottles, and all other condiments we love
03:20all have a stage when it's difficult to get the insides out.
03:24You try hitting it, shaking it,
03:26and poking things inside to encourage the tasty condiments to come out.
03:30Luckily, there is an easier way to do it.
03:34The label at the top suggests where to tap the bottle.
03:38The sauce will come out easier and smoother,
03:41allowing gravity to take the place of frustration.
03:44The purpose of wooden coat hangers is to help repel pesky insects
03:49and avoid fungal growth that eats away at your clothing,
03:52as it's made of cedar wood.
03:55It contains oils that have insecticidal and fungicidal properties
03:59and were used as far back as the ancient Egyptians,
04:03although they used it for other purposes.
04:07We've all been trained and tested at the art of typing
04:10and know the correct way to use a keyboard.
04:13But you may not have noticed that the F and J keys
04:16have a small ridge at the bottom.
04:18They're there to help you find your correct starting place
04:21with your fingers on the keyboard,
04:23without having to look down.
04:26If you've been lucky enough to get the window seat on the plane,
04:29you would have noticed that little hole at the bottom of the window.
04:32It helps with the air pressure on the plane.
04:35The window itself is made from acrylic and isn't actually glass,
04:39which saves it from fogging up so you can see the scenery on your journey.
04:44The windows on planes were originally square.
04:47However, they would continuously break from the constant changes in pressure.
04:52Round windows are able to evenly distribute the pressure,
04:55ensuring you'll have a pleasant journey without falling out.
04:58For all you Nintendo Switch players,
05:01those who have tried to taste your cartridges
05:03will notice they have a bitter taste.
05:05The manufacturers added it intentionally,
05:08as the Switch's cartridge size is very small,
05:11and it might be a hazard for the youngest players
05:14that have a tendency to put things in their mouth that they shouldn't.
05:17So the bitter taste made from denotonium benzoate ensures that they won't be tasted for too long.
05:24Cosmetics containers that are filled with products used for your skin
05:28have a secret number on them.
05:30This is to help inform you how long the product will be usable,
05:35ensuring it doesn't cause the reverse effect by damaging your skin instead.
05:41Pen lids have a hole at the end of them.
05:43It's not there to help your pen breathe and boost performance,
05:47but it's there to help you breathe.
05:49Just in case while you're sitting in class or at work
05:52and you're chewing on your lid and just happen to swallow it,
05:55you can be rest assured if it's stuck,
05:58the pen makers were thinking of you.
06:01When you're traveling by car or any other form of ground transportation
06:05and you're trying to drink your favorite pop from a straw,
06:08you'll find it quite difficult to do at times.
06:11Simply turn the tab on the can around so that your straw easily fits inside,
06:15making it easier to drink out of.
06:18There are always spare buttons when buying new clothes,
06:22along with a little bit of fabric.
06:24It's far too small to repair that crutch part that always rips first.
06:27The fabric is actually there for you to test how to wash it,
06:31so you don't accidentally ruin your brand new clothes.
06:36Determining how much pasta you need just for yourself can be difficult to figure out.
06:40Your big spaghetti spoon with the big hole on the inside,
06:44that looks like it's there to drain water,
06:46is actually there so you can put the uncooked pasta inside before cooking,
06:50so you know exactly how much you need.
06:54New shoes always come with those strange little packets,
06:57that silica gel.
06:59The gels are there to reduce the moisture in the air
07:02to avoid any fungal growth while the shoes were waiting to be purchased.
07:06There's a lot of chemistry involved to get you that silica,
07:10and it's very effective, capable of absorbing 50% of the humidity.
07:14So make sure you don't throw it away.
07:17Next time you need to dry out your electrical devices,
07:20it's a lot easier than using rice.
07:23It's difficult enough to see at night whilst driving,
07:25but it's even worse when the driver behind you shines their high beams.
07:30Your rearview mirror has a tab at the bottom.
07:33When you press it, it changes the angle.
07:35One is for day driving, the other, well, for nighttime.
07:39It'll help in case that one person driving behind you has forgotten to turn off their high beams.
07:45Although your screwdriver is ergonomically made for your hand,
07:48sometimes you have that one screw that's too hard to loosen up.
07:52The handle is also shaped so you can easily fit inside of a ring spanner or wrench,
07:58allowing you to apply more force, ensuring that you can remove that troublesome screw.
08:03The skirt part on an escalator seems like a good spot to get your foot stuck.
08:07But in reality, those long brushes poking out aren't there to give you an extra shine on your shoes,
08:13but for safety precautions to minimize the risk of trapping objects
08:17between the steps and the side of the escalator.
08:21You're trying on a pair of jeans, a dress, or a jacket,
08:24and are about to dig your hand into the pocket when you realize there's no depth to it.
08:29The pocket is simply not there.
08:32But why would anyone create pockets you can't put anything in?
08:36And now would be a good time to pick your iPhone up from off the floor.
08:40Well, the reason for fake pockets is simple.
08:43If a clothing item has a specific cut or shape, pockets may spoil it.
08:48They can alter the item's shape, either in the warehouse or already on the retail rack.
08:53The solution? Getting rid of pockets in key areas.
08:57Plus, fake pockets are obviously cheaper, and they don't get stretched out.
09:02Interestingly, this practice goes back to the 17th century.
09:05That's when pockets were actually removable.
09:08They resembled small bags, and women, for example, could move them from one outfit to another.
09:14Unfortunately, it was also very convenient for pickpockets.
09:18They could grab such a pocket and run off with it.
09:21Then clothes became more streamlined, and slim pockets started to be sewn right into them
09:26instead of attachable bags.
09:28This was believed to make the shape of a person's silhouette more alluring.
09:33But soon, slimmer skirts came into fashion, and pockets went out of it.
09:38And people started using handbags instead.
09:41These days, most pockets are real.
09:44But some of them are still fake.
09:46So, how can we make sure that we don't actually turn a fake pocket into a hole, thinking it's a
09:52real one?
09:52Well, first of all, take a look at the stitching along the edge of the pocket, where it's supposed to
09:57open up.
09:58If you see a single loose thread, just snip a piece of it and start pulling gently.
10:03If the pocket is real, the thread will easily come out.
10:07But if you feel that the stitching won't budge, most likely, you have a faux pocket on your hands.
10:13If this is the case, just leave it be.
10:17Now, let's move on to some other everyday objects that may be hiding some secrets.
10:22For example, those lines on some kinds of chips.
10:25For one thing, they help with the distribution of spices and seasonings.
10:29In other words, all those substances that make your chips taste like cheese are mostly stored inside the lines.
10:36Plus, the lines make chips crunchier.
10:40Highlighters are filled with a special semi-transparent fluorescent ink that can glow and dim light.
10:46Yellow and light green hues are the most popular because they don't prevent you from seeing the text after black
10:52and white photocopying.
10:53Photocopiers perceive yellow and light green marks as almost non-existent and don't print them.
11:00Now, back in the day, the first jeans had one problem.
11:03Workers and miners, who were the original jeans wearers, put too much pressure on the poor piece of clothing.
11:10As a result, the seams couldn't withstand the stress and tore.
11:14So, tiny metal studs were invented to prevent this from happening.
11:19Most metallic zippers have a hidden lock inside them.
11:22That's why you shouldn't leave the zipper handle in an upward position.
11:25When you pull it downwards, it automatically locks.
11:29It's all thanks to several tiny grooves hidden underneath the handle.
11:34Now, about those horizontal lines on plastic bottles.
11:37They help hold bottles up.
11:39Some bottles are produced from soft plastic.
11:42Without the lines, they wouldn't keep their shape.
11:45Instead, they would twist easily or even break.
11:48Bath foam isn't only for fun or a nice smell.
11:51It helps regulate the temperature, too.
11:53The bubbles keep the water high, and you can enjoy your bath a bit longer.
11:58With or without your rubber docket.
12:01Ever notice that layer of clear liquid in gel pens?
12:05It's called the ink follower or stopper fluid.
12:08The gel in such pens contains pigment particles dissolved in a polymer solution.
12:13The gel should be thick enough to keep the pigment particles suspended,
12:17but also thin enough to flow first onto the ball and then the paper.
12:21The main task of the stopper fluid is to be a barrier to prevent the gel from evaporating or leaking
12:28out.
12:29Without this transparent fluid, your gel pen wouldn't function.
12:32The fluid always stays in one position and doesn't get dissolved with the gel.
12:37Neither does it move backward or flow out of the pen.
12:40The holes in the bottoms of your earphones allow air to circulate up and through the speakers.
12:46It allows to increase low frequencies, making the bass sound deeper.
12:51The quality of the sound also becomes much better.
12:54Some plastic milk containers have dents on their sides.
12:57Try as they might, they just cannot park without some damage.
13:02Nah, I made that up.
13:03These dents serve several purposes.
13:05For one thing, when milk spoils, this process usually causes swelling and high-pressure buildup inside the container.
13:12Oh boy.
13:13That's when the dent comes in handy.
13:15It pops out and doesn't let the jug blow up.
13:18Plus, if you ever decide to freeze the milk, it will expand like any other liquid.
13:23And then again, the indentation will pop out and prevent the container from breaking inside your freezer.
13:29That's a good thing.
13:31Airplane windows have rounded edges, and that's a crucial safety measure.
13:36It prevents aircraft accidents.
13:38Weak spots are usually situated in the corners.
13:41If airplane windows were square or rectangular, each of them would have four potential weak spots.
13:47Under pressure, they would collapse.
13:50If you look closely at a tram's overhead lines,
13:53you'll see that its contact wires zigzag back and forth instead of going in a straight line.
13:59The thing is that all trams have pantographs attached to their roofs.
14:03The upper part of the pantograph is gradually worn down by the overhead wire and eventually needs to be replaced.
14:10To wear it down evenly, the wire is not installed strictly along the tram's path, but in zigzag patterns.
14:17As the tram moves, the pantograph slides along the wire and it wears down evenly.
14:23You might have wondered why some gas cans have two holes with caps, one bigger and one smaller.
14:30Before, I thought that the little hole was used when you poured something into a smaller container.
14:34But I was wrong.
14:36A very infrequent occasion.
14:38In reality, you're supposed to uncap it before you pour the gas inside the bigger hole
14:43to prevent it from glugging and spilling on your clothes and on the ground.
14:48Most of the buttonholes on a shirt are vertical, but the top and sometimes bottom ones are horizontal.
14:55The reason is simple.
14:56These two buttons slip out more often than others.
14:59Luckily, producers have found the solution that can prevent these buttons from slipping out.
15:04Horizontal buttonholes.
15:05What engineering!
15:07Buttons tend to slip out less from such buttonholes.
15:11Stick sachets of sugar or salt are easier to open than many people think.
15:15There's no need to tear off one of the ends.
15:18The right way is actually to tear them down the middle.
15:22Some boots have loops sticking out on the back.
15:25Their main purpose is to help you pull your shoes on easier.
15:28Just tug on the loop while you're pushing your heel into the boot.
15:31You can also use these loops to hang your boots on a hook when they're dirty or when you want
15:37to dry them after washing.
15:38Or you can run your laces through the loop if you want to tie them around your ankle.
15:43When you're on board the plane, you might spot a little triangle over your seat.
15:48Such triangles show the flight crew the best spots to check the plane's flaps through the window, just in case
15:54they're flapping.
15:55If your shoes are really slippery, just take a bit of sandpaper and rub it on the soles for better
16:01traction.
16:02They'll become more grippy, and you'll be able to wear them out in the rain.
16:06Now, if they get too wet, they might turn griping, but that's only if you have talking shoes.
16:12If you drill several holes at the bottom of your garbage can, putting in and taking out trash bags will
16:18become much easier.
16:19You won't have any problems with suction.
16:22You can usually find some silica gel in bags, shoes, and many other things you buy.
16:28This shell absorbs excess moisture.
16:30Don't throw it away.
16:31Each time your shoes get wet, put a few packets of silica gel inside.
16:37The thermos wasn't actually invented to keep your coffee warm.
16:41It was made by a Scottish scientist who just wanted a safe place to put his chemicals at a stable
16:46temperature.
16:47So, he took two bottles, put the smaller one inside the bigger one, and vacuumed out the air between them.
16:54Well, anyway, thanks for the hot coffee!
16:59Many shirts have two buttons on the cuffs, but only one buttonhole.
17:04So, what is the second button for?
17:07Turns out you can use it whenever you're wearing a watch, so the cuff is looser.
17:13Most clothing items you buy come with a small bag of fabric or a button, or both.
17:19Buttons obviously can be used as a replacement if you lose the original ones.
17:23Pieces of fabric can be used to patch up a hole, but, most importantly, it's a tester.
17:29You can use it to test different washing products on it and see what happens to the fabric.
17:35Some umbrellas have a tip at the top, and it turns out it's not just a pretty design.
17:41When going inside on a rainy day, you should just close your umbrella and tap the tip against the floor
17:47to drain the water faster and more effectively.
17:51Many backpacks have this diamond with two parallel cut-out slits on its front, and it's there for your comfort.
17:59You can attach something to it, like a water bottle or shoes.
18:02It comes especially handy if you travel somewhere or go hiking, so you don't have to hold your stuff.
18:10Okay, the next thing is gear loops, and probably from the name of it, you already have an idea what
18:16they're there for.
18:17You can strap in some useful gear you need to have with you, like trekking poles or shovels.
18:23Some gear will need to be secured to do it.
18:26Drop the handle through the loop and rotate it upward.
18:29Then, secure it with the elastic hook at the top, and you're golden.
18:34On the back of many makeup and hygiene products, you can find this symbol with a marking, like 6M, 12M,
18:42and 24M.
18:44This is the number of months this product can serve after you open it and before you should throw it
18:50out.
18:52The two sides of a cotton pad are different because each of them has a particular purpose.
18:58A cotton pad has several layers to ensure that it's soft, strong, and can absorb liquids.
19:04The edge is stitched to hold it all together.
19:07The smooth side of a pad is for applying products, like tonics and lotions.
19:12And the embossed side is best for cleansing and makeup removal.
19:18Also, any pack of cotton pads has those strings on the sides.
19:22They're there so you can hang the package somewhere.
19:25Then, you can open the package at the bottom, where the perforated line is, and take them out.
19:32Did you know that there is an efficient way to pull a thread from yarn?
19:36When you pull from the outside, the yarn rolls away, so you need to hold it.
19:40However, if you pull it from the center, it will stay together.
19:45We're all familiar with staplers, but I bet you don't know all its secrets.
19:50Most staplers have a compartment to store spare staples, which can be located either on top or at the bottom.
19:58Also, surprise!
20:00This metal plate you press staples against can be turned around.
20:03This way, the device will be able to staple your documents by turning the metal ends outwards.
20:11No need to wonder whether you need to get a smaller or bigger container.
20:15Turns out, plastic food containers have volume measurements on their bottoms, indicating how much food they can fit.
20:23Ceiling fans come with a small switch on the inside of the blade.
20:26You might not have noticed it because it's not in plain sight, so check yours out.
20:31This switch allows you to change the direction of rotation.
20:35Now, why would you want to do that?
20:38The blades of a fan push the air in different directions, depending on the way they rotate.
20:43In the summer, you need the air to be pushed down to create the effect of a breeze.
20:49In the winter, the direction should be changed so that the air is pushed towards the ceiling.
20:55It then heats up before going down the walls.
20:59Have you noticed that the gas tank sign on cars' dashboards has a little arrow next to it?
21:06Well, this arrow has a purpose.
21:08It points at the side of the car where the gas tank is located.
21:12It's very useful for forgetful people who constantly wonder where their gas tank is,
21:17and also for those who drive rentals once in a while.
21:20The answer is right in front of your eyes.
21:22If you can't find the arrow on your panel, then the fuel hose on the icon indicates the side instead.
21:31All car tires have 12-digit numbers printed on them,
21:35and they're actually important codes for car owners if they want to get the right tire.
21:40The first letter identifies the type of tire.
21:43P stands for a tire for light passenger cars, and LT is for heavy vehicles.
21:49Then, the following numbers stand for the width of the tire, its radial, and its diameter.
21:57Measuring tapes have that metal stud on the end,
22:00which you can use to attach the tape to the surface you measure.
22:03This way, you don't need to hold it yourself.
22:06But there's also a small slot, which can be used to hang the tape on a nail,
22:12again to free your hands and keep measuring.
22:15The bottom of the end of the tape has a ridged edge.
22:19It will help you make a mark if you don't have a marking tool with you.
22:24On the tape, there are black diamonds that are placed every 19.2 inches.
22:29They're useful for construction workers when spacing engineering joists.
22:34They can also be useful for you if you want to hang something heavy, for example.
22:39The diamond will mark the exact center of a wooden joist.
22:43Those are placed 16 inches apart from one another.
22:46There, you can drill something to that center
22:49to make sure whatever you hang is safely attached to the joist
22:52instead of the unreliable thin wall.
22:55Pictures will survive, but it's particularly important if you're hanging something heavy.
23:01Did you know that batteries have an expiration date?
23:05Yes, it's printed right on their label, but I've never noticed it before.
23:10The expiration date doesn't mean you can't use it after that.
23:14It's more like a recommended usage period,
23:18after which the manufacturer can't guarantee full battery life
23:22due to deteriorated components.
23:26These little feet keyboards have are actually a standard.
23:31The height of a keyboard should be adjustable,
23:34allowing the angle between 0 degrees and 15 degrees.
23:39The reason to fold the feet out is for you to see the keys better,
23:44in case you don't type blindly.
23:46A little problem that comes with it is that, in this case,
23:50your wrists are bent,
23:52and it's not good to keep them in this position for a long time.
23:58Pans have those holes on the ends of their handles.
24:01They're not just there for you to hang them.
24:03You can also place your cooking spoon in there.
24:06It'll hang right above the pan,
24:09and the sauce will not spill around.
24:12Make sure to tap off the sauce or food beforehand, though,
24:16so that it doesn't go down the spoon's handle.
24:21Stickers with numbers you can find on fruits
24:23can tell you some information on how the food was grown.
24:28A four-digit code that starts with a four
24:31means that the fruit was grown conventionally,
24:35meaning it contains chemicals and pesticides.
24:39So your best choice should be a fruit with a five-digit number.
24:43And if you see the number nine,
24:46it indicates that the fruit is certified organic.
24:50On the bottom of plastic bottles,
24:53you can often notice a mark of a triangle
24:56with a number engraved in the middle.
24:59This number specifies the type of plastic
25:02that was used to produce the bottle.
25:05These codes help people and local recycling centers
25:09to sort returns.
25:11Products that were made of plastic of types 1 and 2
25:15are the easiest ones to recycle.
25:18Plastics of types 3 through 7 are tougher to recycle.
25:25If you look at it on the street,
25:27you'll think a fire hydrant is about 3 feet in height.
25:30But the actual size of the device used to provide water supply
25:33to firefighters all over the world is twice as large.
25:36That is, if you count the rest of the hydrant,
25:38which is hiding underground.
25:40They're mostly red,
25:41and it's not just a matter of urban design.
25:43First of all,
25:44they need to be of bright, easily noticeable colors
25:46so firefighters can spot them fast when they need to.
25:49The choice of color depends on how much water the hydrant can hold.
25:53It can sometimes vary depending on the location,
25:56but here's the breakdown.
25:57A red fire hydrant can splash 500 gallons of water per minute,
26:02while an orange one at least 1,000 gallons.
26:06Green ones mostly process 1,500 gallons of water per minute,
26:10and the most plentiful ones colored blue
26:12can generally contain over 1,500 gallons.
26:16Hey bowling fans,
26:17isn't it super annoying when your bowling ball gets cracked?
26:20Turns out that most of them get damaged
26:22because of incorrect storage or spikes in temperature.
26:26Now come on and face it,
26:28since it's already cracked a bit,
26:29aren't you curious what's actually inside the bowling ball?
26:32Because I sure am.
26:33Let's have a look.
26:34They mostly make the inner core of the ball
26:36of powdered metal oxides,
26:38like calcium or iron oxide.
26:40They mix them with some resin and catalyst
26:42to harden the whole mixture.
26:44So that light bulb shape you now see inside of the ball
26:47is actually its heaviest part.
26:49It also influences how your bowling ball rotates
26:51when going down the lane.
26:54The same goes with spray paint cans.
26:56When you shake it, it makes a weird noise,
26:58but what is that thing in there?
27:00It's called a pea,
27:02and it's meant to hold the paint mixture in place
27:04and maintain its shape.
27:05They generally make it out of plastic,
27:07metal, or ceramic.
27:08It basically acts as a whisk
27:11to make sure your paint is well mixed together
27:13before you apply it to your surface of choice.
27:16Ever wondered how soda bottles
27:17keep that refreshing fizz for that long?
27:20Well, they have a little plastic ring fastened to the lid.
27:23They place it there to keep the gas from escaping
27:26and making the soda go flat,
27:28even if you shake it around in your bag the whole day.
27:32Speaking of things we use on a hot summer's day,
27:34wait, wait,
27:35don't put your baseball cap on just yet.
27:37Take a look at it for a minute,
27:39and you'll notice there's a small button
27:40on the very top.
27:42Is it functional,
27:43or is it just there for the sake of design?
27:45Way back when people started using fabrics
27:47to cover their heads,
27:48some say the button was actually functional.
27:51Since it's on top of the cap
27:52where the fabric panels come together,
27:54the top button helps keep the cap crown
27:56in one single piece.
27:58Now, with recent advances in fabric and pattern design,
28:02the button is more of an aesthetic feature.
28:04It's used to cover up the joint point
28:05of the fabric panels.
28:07Your cap might not have a button at all,
28:09but don't you think a cap
28:10actually looks better with one?
28:13Cotton pads have two sides,
28:15and if you take the time to look at them carefully,
28:17they're actually different in texture.
28:19Just in case you've ever wondered why,
28:21the textured side is for applying makeup,
28:23and the even side is for removing it.
28:27Bookworms.
28:28This one is for you.
28:29Dust jackets that come with a lot of hardcover books
28:31are not just meant to make your book look pretty.
28:34They also double as a bookmark.
28:36Just fold the pages you've already read
28:38underneath the inside of the jacket,
28:40and voila!
28:42Next time you reach out for your favorite shirt,
28:44take a look at the top buttonhole.
28:45It should be stitched horizontally,
28:47and all the other ones are vertical.
28:50Turns out that the dress shirt was designed this way,
28:52since the first and the last buttons
28:54were the first ones to unbutton throughout the day.
28:57They then changed the direction of the buttonhole
28:59to ensure the shirt would stay nice and fitted
29:02before you're ready to take it off.
29:05These days we have so many variations of this awesome dessert
29:08that it's hard to imagine we've ever lived without it.
29:11You can find different types of cookie dough ice cream
29:13or even chocolate chip cookie cake basically everywhere,
29:16but the famous cookie wasn't actually invented until 1930.
29:20The story goes that a woman named Ruth Graves Wakefield
29:23was preparing some chocolate cookies
29:25as she was waiting for some guests to arrive.
29:27She soon figured out she was out of baker's chocolate,
29:30a crucial ingredient for the classic cookies.
29:33To fix things up,
29:34she chopped up a block of semi-sweet chocolate,
29:37thinking it would eventually spread out evenly
29:38throughout the batter,
29:40given the heat of the oven.
29:41Things didn't necessarily go as planned,
29:43but hey, it's great they didn't
29:45because this is how she invented this modern dessert
29:47we now can't get enough of.
29:50And speaking of popular snacks,
29:52the potato chip is even younger than the chocolate chip cookie.
29:56Well, at least historically.
29:58There are many stories trying to explain how it was invented.
30:01One of them goes like this.
30:03A chef named George Crumb, based in New York,
30:06put the chips together in 1953.
30:09He decided to try a different cooking solution
30:11when one of his customers didn't have nice things to say
30:14about his French fries.
30:15He said they were too thick and kind of mushy.
30:18Then, Crumb came up with potatoes that were thinly sliced
30:21and fried until brown.
30:23People absolutely loved the dish,
30:26and they welcomed the first ever batch of chips
30:28with open arms.
30:31Ice cream, anyone?
30:32If the story is true,
30:33back in 1904 at the St. Louis World's Fair,
30:36one ice cream shop owner ran out of cups
30:39to serve his dish.
30:40So, he fashioned a waffle into the shape of a cone,
30:43and the rest was history.
30:45Okay, I'll admit it,
30:47chewing gum-like treats have been around
30:49since the ancient Greeks.
30:50So, this one isn't particularly a revolutionary discovery,
30:53but the actual gum we buy today
30:55wasn't there until the late 1800s.
30:58An American inventor named Thomas Adams
31:01wanted to mix together different chemicals
31:03to create rubber.
31:04He tried and failed, for that matter,
31:06to play with Chickle for his experiment,
31:08but ended up fashioning this neat treat.
31:10They still use Chickle to this day
31:12to produce most chewing gums.
31:15Back in the 1800s,
31:16there lived a man named Jean-Baptiste Jolly,
31:19who worked in the fabric industry
31:20as a textile maker.
31:22How he came up with this next invention
31:24that we use a lot these days
31:25has less to do with him
31:26and more to do with his maid.
31:29The story goes
31:30that the woman accidentally knocked
31:32a kerosene lamp over onto a tablecloth.
31:35Instead of getting upset over the damaged fabric,
31:38Jolly noticed that the substance
31:39actually made the material cleaner.
31:41Figured it out yet?
31:42Yep, that's how the idea
31:44for the very first dry cleaner popped up.
31:46A very neat accident,
31:48if I do say so myself.
31:51Now this one I loved.
31:52Did you know matchsticks
31:54were initially called friction lights?
31:56Or at least that's how their inventor,
31:58a chemist named John Walker,
31:59called them back in 1826.
32:02He scraped a stick coated in chemicals
32:05across his hearth,
32:06totally by accident one day,
32:07and realized that they ignited
32:09and created a spark.
32:11Initially made out of cardboard,
32:13they were then made
32:14using wooden splints and sandpaper.
32:18Back in the 1940s,
32:19a man named Harry Coover
32:21stumbled upon a chemical formulation
32:22that seemed to stick
32:23to everything it touched.
32:25The scientific community at the time
32:27didn't look much into it
32:28as the formula didn't seem
32:30to have many applications back then.
32:32It wasn't until 1951
32:34that he looked a bit more
32:35into the formula
32:36and decided to repurpose it,
32:38along with a fellow
32:39Eastman Kodak researcher
32:41named Fred Joyner.
32:42They gave it a proper full name.
32:44But you must know it
32:45by the shorter version,
32:47superglue.
32:49It also has many uses
32:51in security these days
32:52that it's hard to believe
32:53that we didn't come up
32:54with this one on purpose.
32:56Back in 1903,
32:57a scientist named Edward Benedictus
33:00knocked over a flask
33:01by accident.
33:02He looked down
33:03and was amazed to see
33:04that the glassware
33:05had just slightly cracked
33:07but maintained its shape.
33:08He was expecting it to break
33:10into a million tiny pieces.
33:12Curious about this hidden feature,
33:14he looked into it
33:14and figured out
33:15what was keeping the glass together
33:17was a substance coating
33:18the inside of the glass.
33:20Ta-da!
33:21That's how humanity
33:22came up with safety glass.
33:25Various types of cheese
33:27have holes for a reason.
33:28For example,
33:30Swiss cheese is made
33:31with special bacteria
33:32that produce carbon dioxide.
33:34As the CO2 is emitted,
33:36it blows like bubble gum,
33:38leaving tiny craters,
33:39also known as cheese eyes.
33:41Then the cheese is cooled down,
33:43but the holes stay in place.
33:47Over 40 billion Oreos
33:49are made every single year.
33:51It's the world's most popular
33:53manufactured cookie.
33:54The geometric design
33:56stamped onto these cookies
33:57has the Nabisco logo,
33:59the symbol of European quality,
34:01surrounding the word Oreo.
34:03William Tournier
34:04created the chocolate cookie design
34:06we see today
34:07back in 1952.
34:11If you use reusable bottles,
34:13you probably know
34:14that sometimes they smell.
34:16Even if you only use it
34:18for regular water,
34:19it still smells.
34:20But it's not the water that smells,
34:22it's the microorganisms in it.
34:25If you drink water from a bottle,
34:27the particles of your saliva
34:28and sweat stay in there.
34:30Those bacteria start to build up
34:32in the bottle,
34:32causing the smell.
34:34So,
34:34if you choose reusable bottles,
34:36make sure to wash them
34:38every day
34:38to prevent those bacteria
34:40from building up.
34:41After washing,
34:42let it dry completely
34:43before using it again.
34:47Not only are the jeans blue,
34:49but the police officers'
34:51uniforms as well.
34:52The first official police officers
34:54appeared in the 19th century
34:55in London.
34:56They were given
34:57a blue uniform
34:58to contrast
34:59with the red and white uniform
35:00that military workers
35:02had already been wearing.
35:03Two decades afterward,
35:05the police force
35:06was adopted in the USA,
35:07and they followed the patterns.
35:09The uniform is still blue nowadays
35:11because it proved
35:12to be a good color.
35:13It's not that visible
35:14in dark hours,
35:15and police officers
35:17can observe things
35:18and people
35:18staying unnoticed.
35:20Also,
35:21stains aren't that visible
35:22on dark material.
35:23And,
35:24well,
35:25everyone knows
35:25that police officers
35:26wear blue
35:27and they're recognized it.
35:29So,
35:29why change that?
35:32Baby carrots are tiny,
35:34and unlike regular carrots,
35:36wet.
35:37Not unlike baby humans.
35:39Baby carrots
35:39aren't some special
35:41sort of carrot.
35:41They're actually
35:42made of regular carrots
35:44by cutting off the skin
35:45and outer layers
35:46and then polishing them
35:47to look that pretty.
35:49The problem is,
35:50they can't retain moisture.
35:51A regular carrot
35:52retains some water inside
35:54because of the layers
35:55that lock it in.
35:56Once they're chopped out,
35:58baby carrots
35:58can dry out easily.
36:00So,
36:00they usually sell them
36:01in bags
36:02with some water inside.
36:06Jeans have metal rivets,
36:08and they're there
36:08from the very beginning.
36:10Jacob Davis,
36:11the man who made
36:12the first pair of jeans,
36:13added copper rivets
36:14to spots where pants
36:15are more likely to rip,
36:17flies in pockets,
36:18to make them stronger.
36:20Today,
36:20they have more
36:21of a decorative purpose,
36:22since they are distinctive
36:23and traditional for jeans.
36:25Another special thing
36:27about jeans
36:27is those tiny pockets
36:29they have
36:29that seemingly
36:30serve no purpose.
36:32Well,
36:32maybe it's true now,
36:33but years ago,
36:35when many cowboys
36:36were wearing jeans,
36:37the pocket was made
36:38specifically
36:39to keep a pocket watch there.
36:41Also,
36:42back then,
36:42a pair of jeans
36:43had just four pockets.
36:45That tiny pocket,
36:46the watch pocket,
36:47two big pockets in front,
36:49and just one pocket
36:50in the back.
36:53Car headrests
36:54are all about comfort,
36:55and detachable headrests
36:56are all about safety.
36:58If you pull the headrest out,
37:00you'll see two sturdy
37:01metal bars.
37:02If you ever get locked
37:03or trapped in a car,
37:04you can use the bars
37:05to smash the window
37:06and get out.
37:09Those little red spots
37:11you sometimes see
37:12after you crack an egg
37:13are nothing
37:14to be worried about.
37:16Tiny blood spots
37:16can be caused
37:17by a small rupture
37:18in a blood vessel
37:19of a hen
37:20as it was laying the egg.
37:22Eggs with these blood spots
37:23are safe to eat,
37:24but that spot
37:25can be removed
37:26if you want.
37:27It won't affect
37:28the taste of the egg.
37:29Oh,
37:29that's comforting.
37:32Hidden within
37:32the Toblerone logo
37:34of the mountain
37:34is the image
37:35of a bear
37:36standing on its hind legs
37:38about to eat
37:38that yodeler over there.
37:40No, not really.
37:41This is because
37:42bears are a big part
37:43of Bern,
37:44one of the biggest cities
37:45in Switzerland
37:46where the founder
37:47created the triangular
37:48chocolate tree.
37:49Toblerone is also
37:50a play on the founder's
37:52family name,
37:53Tobler,
37:53and the Italian word
37:55Tyrone for honey
37:56and almond nougat.
38:00The space below
38:01a cup of noodles
38:02is there to protect
38:03the noodles
38:03during transport.
38:04This technique
38:05is called
38:05a middle suspension.
38:07Not only are they
38:08protected better
38:09in their styrofoam cup,
38:10but it also helps
38:12those noodles
38:12soften more evenly
38:13and quickly.
38:14Even though
38:15you might have noticed
38:16that the hole
38:17on the barrel
38:17of ballpoint pens
38:18has no purpose,
38:20it does.
38:21It's called
38:21a venting system,
38:22which helps the ink
38:23flow more smoothly.
38:25This way,
38:25an even amount
38:26of air pressure
38:27is created inside
38:28and outside the pen,
38:30allowing the ink
38:31to flow into the point
38:32easily.
38:34It's not an accident
38:35that soy sauce bottles
38:36have two spouts.
38:38The sauce is liquid,
38:39and it flows out
38:40of the bottle
38:40pretty quickly
38:41once you turn it over.
38:42Most Asian food lovers
38:44will admit
38:44they've spilled it
38:45at least once
38:46in a lifetime.
38:47That's why,
38:48nowadays,
38:49restaurants prefer
38:50serving soy sauce
38:51in special bottles
38:52that have two spouts.
38:53This design
38:54allows you
38:55to control
38:55when and how
38:56much sauce
38:57will come out.
38:58Just put your finger
38:59on one spout
38:59while you pour
39:00the sauce
39:01through another.
39:02If you press
39:02your finger
39:03tightly to the spout,
39:04the sauce
39:05will stop flowing,
39:06and if you remove
39:07your finger,
39:08it will flow again.
39:09And please,
39:10do not remove
39:11your finger
39:11in a restaurant.
39:12It will freak
39:13everybody out.
39:15You've probably noticed
39:17that train and bus seats
39:18are covered in fabrics
39:19with weird patterns.
39:21Any idea why?
39:22They use these patterns
39:23to cover any germs
39:25and stains on the seat.
39:26Oh boy.
39:27The brighter the color
39:28and the more patterned
39:29it is,
39:30the harder it will be
39:31for a passenger
39:32to notice any stains
39:33and get grossed out.
39:34Also,
39:35the patterns are usually
39:36so ugly
39:37that no one
39:38even wants to look at them
39:39for long enough
39:40to spot any stains.
39:41So yeah,
39:42the pattern is there
39:43to make you look away.
39:44And if you look,
39:46to make it less noticeable.
39:47No bus will ever have
39:49plain white seats.
39:50That's a guarantee.
39:53The middle tab
39:54on soda cans
39:55can be flipped around.
39:56You can slip a straw
39:57in place
39:57so you don't have
39:58to hold it up your mouth.
40:00This stay on tab
40:01replaced the pull ring tab
40:02created in the early 60s.
40:04You remember those,
40:05don't you?
40:06Those could be quite sharp
40:07and easily discarded
40:08where they could be
40:09a menace for others.
40:10Now,
40:11you can pop your straw
40:12straight into one.
40:13Also means
40:14you can produce some bubbles
40:15and make a mess
40:16like a three-year-old.
40:19Sometimes,
40:20when you purchase
40:20an article of clothing,
40:21you receive a plastic baggie
40:23with an extra button
40:25and a swatch of fabric.
40:26While the fabric
40:27is clearly used
40:28to patch holes,
40:29it can also be used
40:31to test the effects
40:31of various cleaners
40:32on certain surfaces.
40:34It's handy, too,
40:35to test wash cycles
40:36before using them
40:37to wash the whole garment.
40:41Escalators have
40:42those fluffy black brushes
40:43for a similar reason
40:44that some have yellow lines
40:46on their steps
40:47to try and deter people
40:49from getting too close
40:50to dangerous places.
40:51People don't always
40:52take notice,
40:53and sometimes,
40:54clothing can drape
40:55close to the point
40:56where the step
40:57meets the edge
40:58or skirt.
40:59The brush
41:00is a little barrier
41:01to help prevent
41:01this from happening.
41:02They can also catch
41:04bits of fluff
41:04and prevent other small things
41:06from falling down
41:07into the gaps.
41:10Those takeaway containers
41:11most associated
41:12with Chinese restaurants
41:13are designed
41:14designed to not only
41:15carry your food home
41:16but to store it
41:17in the fridge.
41:18They double as a plate
41:20as you can eat
41:20straight out of them
41:21and don't have to worry
41:22about dirty dishes.
41:24Yay!
41:24They were actually patented
41:26way back in 1894
41:28to transport freshly shucked oysters
41:30and were known
41:31as oyster pails.
41:32They were later adapted
41:34to use as leak-proof containers
41:35for food.
41:38Ever wondered why coins
41:39have those little ridges
41:40along the edge?
41:41It's a leftover
41:42from earlier times
41:43when they were worth more.
41:45Counterfeiters
41:46could easily file
41:47the edges off
41:48to sell as gold
41:49or silver coins
41:50to make some profit.
41:51The ridges were created
41:52so it was much easier
41:54to tell which of the coins
41:55had been altered.
41:56It's not needed today
41:57but the coins still have
41:59that altered style.
42:02All crackers
42:03and some cookies
42:04have holes
42:05to make sure
42:05the final product
42:06has the right texture.
42:08These teeny tiny holes
42:09allow steam to escape
42:10so your crackers
42:12and cookies
42:12won't snap.
42:13If it weren't
42:14for these holes
42:15also known as dockers
42:16steam would build up
42:18inside the tree
42:19and the final result
42:20might have been scrumptious
42:21but it would have been
42:22rather oddly shaped.
42:25Dogs like to walk
42:26in circles
42:27before snoozing
42:28because they inherited
42:29this behavior pattern
42:30from their ancestors.
42:32There were no special
42:33doggy beds back then
42:34so most pooches
42:35would have to push down
42:36tall grass
42:37to make a sort of
42:38snoozing spot.
42:39Plus, as a bonus
42:41those movements
42:42scared off all the
42:43critters lurking
42:44in the vegetation.
42:46Donuts are ring-shaped
42:47for a similar reason.
42:49If they hadn't had holes
42:50right in the center
42:51the dough there
42:52would have always
42:53been undercooked.
42:54By the way
42:55they're often associated
42:56with the police
42:57because back in the 1950s
42:59donut shops
43:00were among the only
43:01places openly.
43:03They were a perfect place
43:04for police officers
43:05to grab something to eat
43:06and even deal with
43:07some paperwork
43:08during the night shift.
43:10Your jeans are blue
43:12on the outside
43:12and white on the inside
43:14because of a smart way
43:16to weave the fabric.
43:17The warp thread
43:18is dyed
43:19while the weft thread
43:20has no color.
43:21It's just white.
43:22This way manufacturers
43:24reduce the amount
43:25of dye needed
43:26for each piece
43:27of clothing.
43:27And they're still
43:29dying to make the jeans.
43:34You know
43:34there are all sorts
43:36of amazing things
43:37you can do
43:37with products
43:38already lying
43:39around the house
43:40that were meant
43:41for other things.
43:42We'll explore
43:43some of those
43:44plus everyday items
43:46that have other purposes
43:47you may not be aware of.
43:49I'm also in a silly mood
43:51so hey
43:51let's have some fun.
43:53Many pairs
43:54of kitchen scissors
43:55today
43:56have a serrated opening
43:57where the handles
43:58and blades meet.
43:59You can use this
44:00as an herb stripper
44:01to de-stem difficult herbs
44:03like thyme,
44:04rosemary,
44:05and chives.
44:06Saves you a lot of time
44:08trying to pick
44:08the leaves off by hand.
44:10And if you're short
44:11of a vase
44:12you could present roses
44:13to your significant other
44:14this way.
44:15Just be careful
44:16when you're pointing
44:17the sharp end.
44:19The metal tab
44:20on soda cans
44:21can be flipped around.
44:22You can slip
44:23a straw in place
44:24so you don't have
44:25to hold it up
44:26to your mouth.
44:27This stay-on tab
44:28replaced the pull ring tab
44:29created in the early 60s.
44:31You remember those,
44:33don't you?
44:33Those could be quite sharp
44:35and easily discarded
44:36where they could be
44:37a menace for others.
44:39Now,
44:40you can pop your straw
44:41straight into one.
44:42Also means
44:43you can produce
44:44some bubbles
44:44and make a mess.
44:47Sometimes,
44:47when you purchase
44:48an article of clothing,
44:49you receive a plastic baggie
44:51with an extra button
44:52and a swash of fabric.
44:54While the fabric
44:55is clearly used
44:56to patch holes,
44:57it can also be used
44:59to test the effects
45:00of various cleaners
45:01on certain surfaces.
45:02It's handy, too,
45:03to test wash cycles
45:05before using them
45:06to wash the whole garment.
45:08And if you want
45:09to clean your nose with it,
45:10that suggestion
45:11never came from me.
45:14You can use
45:14a screwdriver
45:15for leverage
45:16if you're having trouble
45:17lifting or moving something.
45:19Some also have
45:20a hexagonal shape handle
45:22that fits inside a wrench
45:23or spanner.
45:24You can use it
45:25to improve torque
45:26and, again,
45:27for leverage.
45:28A little easier
45:29on your hands.
45:30Some of us
45:31aren't that strong.
45:32Or maybe that's just me.
45:34Rubber bands
45:35are great for many things.
45:37But if you have a bottle
45:38that's hard to open,
45:39you can wrap the band
45:41around it
45:41for a better grip.
45:44Escalators
45:45have those fluffy
45:46black brushes
45:47for a similar reason
45:48that some have
45:49yellow lines
45:49on their steps.
45:50to try and deter people
45:52from getting too close
45:53to dangerous places.
45:55People don't always
45:56take notice,
45:56and sometimes
45:57clothing can drape
45:58close to a point
45:59where the step
46:00meets the edge
46:01or skirt.
46:02The brush
46:03is a little barrier
46:04to help prevent
46:05this from happening.
46:06They can also
46:07catch bits of fluff
46:08and prevent
46:09other small things
46:10from falling down
46:11into the gaps.
46:13Your average pair
46:14of jeans
46:15has several features
46:16that are both
46:17functional
46:17and somewhat sentimental.
46:19The metal rivets
46:21around the pockets
46:22help secure
46:22the stress points.
46:23This ensures
46:24they last a bit
46:25longer than average,
46:26though not all jeans
46:28have them.
46:29Many still have
46:30a tiny pocket
46:32directly above
46:33the main pocket.
46:34This was originally
46:35meant to hold
46:36a pocket watch.
46:37Even though pocket watches
46:38are mostly a thing
46:39of the past,
46:40many people still
46:41use this space
46:42to store coins,
46:43rings,
46:44or even
46:45a portable USB.
46:47Now,
46:48this may seem
46:49a little obvious,
46:50but if you've ever
46:51wondered what all
46:52the notches are
46:53in a car tire,
46:54it's for traction
46:55on the road.
46:56However,
46:57there are also
46:57a good indicator
46:58if your tire
46:59is getting too worn down.
47:01If those notches
47:03aren't so deep anymore
47:04and are almost
47:05flush with the road,
47:06it's time
47:07to replace them.
47:08If you don't,
47:09the next time
47:10you try to stop
47:11suddenly at a stop sign,
47:12you might be surprised
47:14to find your car
47:15has turned
47:15into a giant
47:16roller skate.
47:18Those takeaway containers
47:19most associated
47:20with Chinese restaurants
47:22are designed
47:23to not only
47:24carry your food home,
47:25but to store them
47:26in the fridge.
47:27They double as a plate
47:29as you can eat
47:30straight out of them
47:31and don't have to worry
47:32about dirty dishes.
47:34Yay!
47:34They were actually
47:36patented
47:36way back in 1894
47:38to transport
47:39freshly shucked oysters
47:41and were known
47:42as oyster pails.
47:43They were later adapted
47:44to use as leak-proof
47:46containers for food.
47:48While you're sitting
47:49on an airplane
47:50and looking out the window,
47:52you may have noticed
47:53those little holes
47:54or, in some instances,
47:55a small singular opening
47:57near the bottom.
47:58This is called
47:59a breather hole
48:00and, no,
48:01it's not for you.
48:02It's designed
48:03to equalize
48:04the difference
48:04in air pressure
48:05which builds up
48:06between the pressurized cabin
48:08and the atmosphere outside.
48:09especially during
48:11high altitudes.
48:13It also releases
48:14moisture from
48:14between the panes
48:16to avoid frost
48:16from forming
48:17on the windows
48:18and obstructing
48:19that all-important view.
48:21Sorry,
48:22but it looks like
48:22you won't be drawing
48:23a smiley face on it
48:25anytime soon.
48:26This was first introduced
48:28way back in 1956
48:30by a company in Japan.
48:31Pretty cool, huh?
48:33They got their inspiration
48:34from snap-off rows
48:36on chocolate bars.
48:37Just don't get
48:38the two mixed up.
48:39One doesn't taste good.
48:42When it comes
48:43to measuring tape,
48:44almost every reel
48:45has an empty slot
48:46in the metallic end.
48:48This is called
48:49a nail grab,
48:50so you can attach it
48:51to a nail or screw.
48:53A handy trick
48:54to do measurements
48:55without requiring
48:56someone else
48:57to hold it in place.
48:58Ooh, very nifty.
49:01Bobby pins have grooves
49:02on one side
49:04to hold your hair
49:04in place better.
49:05Crazy notion, huh?
49:07The straight side
49:08goes face up
49:09while the grooves
49:10go down
49:11against your head.
49:12They're called
49:13bobby pins
49:14because of the bobbed
49:15hairstyle
49:15which was popular
49:17in the 1920s,
49:18though the pins
49:19were invented
49:20in the 19th century.
49:21The look is gone,
49:23but the pins remain.
49:24Please take them out
49:25before you wash your hair
49:27as they don't look great
49:28stuck to your fingers.
49:30If you've been in a car
49:32or a bus
49:32and noticed
49:33the textured black dots
49:35baked into the black edges,
49:37you've probably worked out
49:38that it's not there
49:39for its pretty looks.
49:40It's called
49:41FRIT,
49:42a ceramic paint.
49:43Its main purpose
49:45is to protect the window
49:46from ultraviolet rays.
49:48It also creates
49:49a rough surface
49:50for the adhesive
49:50to cling to.
49:52Now,
49:53if you see a pink lump
49:54of adhesive
49:55in the corner,
49:56please do not touch it.
49:58It's actually
49:59someone's old bubble gum.
50:01If you take a look
50:03at the bottom
50:03of the lock,
50:04chances are
50:05you'll see
50:05one or two
50:06little holes.
50:07This is to let
50:08water out
50:09from the inside
50:09that may have been
50:10trapped due to rain.
50:12This mini-draining
50:13capability
50:14prevents the inner
50:15working from
50:16rusting over
50:17or freezing in place
50:18if the weather
50:19is very cold.
50:20If,
50:21in another situation,
50:22the lock
50:23becomes stuck,
50:24you can ease
50:25an oil-based product
50:26inside
50:27to lubricate
50:28the lock
50:28and get it
50:29working again.
50:31If you've lost
50:33the key
50:33and want to
50:33ease your frustrations,
50:35you can yell
50:36into the holes.
50:37It won't do anything
50:38to unlock it,
50:39but it may help
50:39you feel a little better.
50:42Some dress shirts
50:43have a fabric loop
50:44on the back.
50:45You guessed it!
50:46It's used for
50:47hanging the shirt up.
50:49The loops
50:49were reportedly
50:50first used
50:51in the Navy,
50:52as it was easy
50:53to simply hang
50:54them on the wall.
50:55During the 1960s,
50:57and colleges,
50:58the fashion of the day
50:59was to wear the shirt
51:00buttoned all the way
51:01to the top,
51:02which made them
51:03difficult to hang.
51:04So designers
51:05began putting the loop
51:07on the back.
51:08If the student
51:08removed the loop,
51:10it signified that
51:10they were going
51:11steady in a relationship.
51:13Unless your friend
51:14ripped one off
51:15for a prank,
51:16now everyone's asking
51:17whom you're with.
51:19There's a little more
51:20to this story,
51:20but we haven't got time
51:22to hang around.
51:24And yes,
51:25that's a bad pun.
51:26On purpose.
51:27It's what I do.
51:29Ever wondered
51:30why coins
51:31have those little
51:31ridges along the edge?
51:33It's a leftover
51:34from earlier times
51:36when they were worth more.
51:38Counterfeiters
51:38could easily
51:39file the edges off
51:40to sell as gold
51:41or silver coins
51:42to make some profit.
51:44The ridges
51:45were created
51:45so it was much easier
51:47to tell which of the coins
51:48had been altered.
51:49It's not needed today,
51:51but the coins
51:51still have
51:52that altered style.
51:53If you ever
51:54get really bored,
51:56you could try
51:56counting how many
51:58ridges there are.
51:59Actually,
52:00that is a very boring idea.
52:01Forget that
52:02and watch another
52:03Bright Side video instead.
52:04the end.
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