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You've seen these everyday objects for YEARS — but some of their smartest features have been hiding right in front of you!

Discover 50 hidden features, clever engineering secrets, mysterious design details, and unexpected functions built into ordinary household items, tools, appliances, and everyday products.

From strange holes and unusual shapes to overlooked switches, clever mechanisms, and surprising built-in solutions, these tiny details often have a practical purpose most people never notice.

Some make everyday tasks easier. Others improve safety, prevent damage, or reveal just how thoughtfully familiar objects were designed.

How many of these hidden features did YOU already know?

#HiddenFeatures #EverydayThings #EngineeringSecrets #CleverDesign #HiddenSecrets

Category

🎈
Fun
Transcript
00:00You must have noticed those lines on some kinds of chips.
00:04For one thing, they help with the distribution of spices and seasonings.
00:08In other words, all those substances that make your chips taste like cheese
00:12are mostly stored inside the lines.
00:16Plus, the lines make chips crunchier.
00:20Some cars have a tiny coffee cup sign on their dashboard.
00:24It's the vehicle's anti-drowsiness mechanism.
00:28There are manufacturers that equip their cars with a drowsiness detection system.
00:33It analyzes the speed, wheel angle, and lane deviations
00:37to figure out if it's time for the driver to take a break.
00:41If it is, the vehicle makes several audio signals,
00:44and the coffee cup sign starts to flash.
00:49Some plastic milk containers have dents on their sides.
00:52These dents serve several purposes.
00:56For one thing, when milk spoils, this process usually causes swelling
01:00and high pressure buildup inside the container.
01:04That's when the dent comes in handy.
01:06It pops out and doesn't let the jug blow up.
01:10Plus, if you decide to freeze the milk, it will expand like any other liquid.
01:15And then again, the indentation will pop out and prevent the container from breaking inside your freezer.
01:22You might have wondered why jerry cans have three handles.
01:26It's a clever designer move.
01:29This way, if you carry the container alone,
01:32you can use only the central handle to distribute the weight evenly.
01:37But if your friend wants to help you out, each of you can grab the side handle.
01:43The first jeans had a problem.
01:45Workers and miners, who were the original jeans wearers, put too much pressure on the poor piece of clothing.
01:52As a result, the seams couldn't withstand the stress and tore.
01:57Tiny metal studs were invented to prevent this from happening.
02:02Sticky notes come off relatively easily because their adhesive is spread out across the paper unevenly in small blobs.
02:11And only some of these blobs touch the surface of whatever you've stuck the note on.
02:15That's why when you unstick a post-it and attach it to something else, it still works until all the
02:22glue gets used or covered with dirt.
02:25Soda bottles are always filled in such a way that there's some space between the liquid and the cap.
02:32That's because soda contains carbon dioxide.
02:36It's a gas that can expand once a bottle is heated.
02:39If there's no gap in the bottle, it can break because of the pressure building inside.
02:45Also, when you open your drink, the gases go out in the form of bubbles, and the drink is likely
02:51to overflow.
02:52The gap helps with this problem, too.
02:57Dental floss is super useful for your teeth, but it might be rather hard to operate.
03:02It regularly slips out of your fingers and tangles.
03:06To avoid these problems, tear off a piece of dental floss and tie its two ends together.
03:12It'll be much easier to use and won't hurt your fingers.
03:17Now, about those horizontal lines on plastic bottles.
03:21They help hold bottles up.
03:24Some bottles are produced from soft plastic.
03:27Without the lines, they wouldn't keep their shape.
03:30Instead, they would twist easily or even break.
03:35The soft, round part under a soda bottle cap keeps the carbonation from escaping.
03:41Without it, your pop would go flat in no time, probably even before you buy it.
03:49If you don't have anywhere to put a toothpick after using it, break off its flat end at the first
03:55groove and place it on the table.
03:57Now, you can balance the used portion of your toothpick on the grooved part so that it doesn't have to
04:02touch the table.
04:05You can also make a makeshift stand for disposable chopsticks.
04:09They have a sort of lump on one side.
04:12Break that lump off before you split the pair.
04:16Now, when you want to take a sushi break, just place the stick on this stand.
04:23Donuts are shaped like rings because otherwise, they might get overdone at the edges but uncooked and gooey inside.
04:31With a hole in the center, both the outside and the inside get ready at the same time.
04:39Ever notice that layer of clear fluid in gel pens?
04:43It's called the ink follower or stopper fluid.
04:47The gel in such pens contains pigment particles dissolved in a polymer solution.
04:53The gel should be thick enough to keep the pigment particles suspended, but also thin enough to flow first onto
04:59the ball and then the paper.
05:02The main task of the stopper fluid is to be a barrier to prevent the gel from evaporating or leaking
05:08out.
05:09Without this transparent fluid, your gel pen wouldn't function.
05:14The fluid always stays in one position and doesn't get dissolved with the gel.
05:19Neither does it move backward or flow out of the pen.
05:24Some button-down shirts have a button hidden on the back of the collar.
05:28Its main purpose is to prevent the tie from sticking out from under the collar.
05:34As for that locker loop on the back, you can use it to hang the shirt on a hook to
05:40avoid wrinkling it.
05:43Outer rings and zipper sliders, especially when two sliders are used together,
05:48are added so that you can connect them with a lock and keep sticky fingers away.
05:55Most ambulance cars have this word printed on the front of the vehicle.
05:59That's the word ambulance backward.
06:02It's written in reverse so that the driver in front of the ambulance can see the word properly in their
06:08rearview mirror.
06:10Then they can move out of the way and let the ambulance pass.
06:15Escalator brushes serve an important safety purpose.
06:19You might have heard that most accidents happen after people get their bags or clothes stuck in escalators,
06:25because they stand too close to the sides.
06:27But when there are nylon brushes on both sides, you can't but keep your feet away from the escalator's skirt
06:34panels.
06:35The result? No accidents.
06:38The side holes in sneakers are for laces.
06:42Since sneakers were originally invented for basketball players,
06:46this interesting design allowed them to accommodate any player's foot.
06:51They just needed to lace their sneakers in the most comfortable way for them.
06:56The holes in the bottoms of your earphones allow air to circulate up and through the speakers.
07:03It helps to increase low frequencies, making the bass sound deeper.
07:07The quality of the sound also becomes much better.
07:12Ever been stranded with a cup of applesauce, but no spoon at hand?
07:17But each snack pack already has a built-in spoon.
07:21Several twists of the foil lid, and here you go!
07:26Diamond slits on backpacks were originally placed only on traveler bags.
07:31Their purpose was to carry ropes.
07:34These days, you can find such slits on almost every backpack.
07:38Why not use them to carry a bottle of water, an umbrella, or a pair of sneakers?
07:46Highlighters are filled with a special semi-transparent fluorescent ink that can glow in dim light.
07:53Yellow and light green hues are the most popular
07:56because they don't prevent you from seeing the text after black and white photocopying.
08:02Photocopiers perceive yellow and light green marks as almost non-existent and don't print them.
08:09A stop sign has an octagonal shape to help drivers recognize it easily, even if they see it from the
08:15back.
08:16When the signs weren't reflective yet, this shape prevented drivers from confusing the stop sign with any other at night.
08:24The number 57 on a Heinz ketchup bottle has nothing to do with the product label.
08:30The truth is that the place with the numbers is the very sweet spot you should tap to get the
08:36ketchup flowing.
08:37So, stop hitting the bottom of your sauce bottle and hit 57.
08:44Lots of private houses have triangular-shaped roofs because this allows rain, snow, and fallen leaves to slide off the
08:52slope.
08:52If all this stuff piled up on top of your house, one day, your roof would collapse.
09:00Airplane windows have rounded edges, and that's a crucial safety measure.
09:05It prevents aircraft accidents.
09:08Weak spots are usually situated in the corners.
09:11If airplane windows were square or rectangular, each of them would have four potential weak spots.
09:18Under pressure, they would collapse.
09:22Don't waste time scrubbing the burnt stains off the bottom of a pan.
09:25Instead, fill it with water and add three tablespoons of salt.
09:29Let it sit overnight as the salt dissolves the burnt marks.
09:33And in the morning, pour the water out of the pan.
09:35This way, it will be much easier to scrub all that grease off.
09:39Picture this.
09:40You're on vacation, and your shirt has become all crinkled inside the luggage.
09:44You need it tonight, but the hotel doesn't have an iron.
09:47Don't panic.
09:48Hang the shirt up in the bathroom.
09:50And while you relax in a hot shower, the heat and moisture will unwrinkle your shirt.
09:54It won't be perfect, but it will get much better without any effort.
09:58The football is on, and it turns out you've run out of standard batteries.
10:02You can use a smaller battery instead that easily fits inside.
10:06Now take some aluminum foil and crunch it up.
10:09Fit it into the gap on the negative or flat end of the battery.
10:13All done.
10:13You can turn on the TV now.
10:16Once your flip-flops crack and the plug easily slips out of the hole,
10:19it's normally a sign that you need a new pair.
10:22But there's a way to extend their mileage.
10:24Push the plug back through the hole, then take a bread clip and attach it to the end.
10:29The clip will provide enough support for the plug to remain in place.
10:33You've received a package and the receipt is taped on.
10:36You've managed to detach it from the box.
10:38But how to separate the tape without ripping the paper?
10:42Hold both ends of the tape apart, and by pulling it slowly,
10:45the tape stretches and separates itself from the paper without tearing it apart.
10:51Ziploc bags are perfect to keep things dry, but it would be great if they were larger.
10:56Take two and turn one of them inside out.
10:59They can now connect and work as one large bag, big enough to protect a keyboard.
11:04There's no need to carry your keys in your hand when you go for a jog.
11:08Instead, put them inside your pocket.
11:10Take a rubber band, then tie it around the pocket from the inside.
11:14This stops the keys from falling out.
11:17You've broken your key in the door.
11:19It's stuck. Great!
11:21Arranging for a locksmith could cost up to $100.
11:24But for a cheaper and quicker option, try using a hot glue stick.
11:28Heat the end with a lighter, and once it's warm enough to melt,
11:31push the glue into the keyhole.
11:33The melted glue will enter the available space covering part of the key.
11:38Once it cools, it compresses and gains a strong hold of the key's end.
11:42Now, just pull it out.
11:45If you need to siphon liquid through a hose and want to avoid using your mouth,
11:49put one end in the liquid and hold the other upwards with your thumb closing the top.
11:54Now shake up and down.
11:55This jiggle motion pushes liquid upwards, a little each time.
11:59And once it reaches the top, lower the exit point and let gravity do the rest.
12:04You've left your keys locked inside the car.
12:07It's an older model with a roll-down window.
12:09You could get the coat hanger and begin the long process of finding the lock.
12:13Or use duct tape.
12:14Make about 20 2-foot-long strands.
12:17Stick them onto the window, allowing enough room for the tape to grab onto at the bottom.
12:22Then, with a friend, take the ends of the tape, holding them together, and pull downwards.
12:27The force will allow the window to lower enough that you can unlock the door.
12:32While drilling long screws into hardwood, your old drill might not have enough power, leaving them only halfway in.
12:39Before the drill gives up, get a block of wax and scrape the edges of the screws with it.
12:43The wax works like a lubricant, melting as it gets warm, and providing easy entry for the screw.
12:50You're out camping, but you didn't bring anything to light the barbecue.
12:53Take a small plastic bag that won't leak, fill it up with water, and close it tight, making a round
12:59bubble.
13:00Hold it over where you want to catch the light from the sun.
13:03The bag of water will work like a magnifying glass, starting up the barbecue, just as long as it's a
13:09sunny day.
13:10Missing a corkscrew or a cork breaking halfway?
13:13By using a stove lighter, heat the top of the bottle.
13:16The heat slightly expands the glass, and this forces the cork out the top.
13:21You've superglued your fingers again.
13:23Take some salt and pour it on top of your stuck fingers.
13:26Put your fingers into the water and slowly rub.
13:29The mixture will dissolve the glue and release you in no time.
13:33While hanging up a painting, it can be impossible to find that stubborn nail.
13:37Place a fork upside down and insert it so the nail is in between the middle fork teeth.
13:43The fork has provided a long arm that's separated from the wall, making it easier to slip the string of
13:49the painting over the nail.
13:50Once it's perfectly balanced, simply remove the fork.
13:56You need to put a cake into a container, but taking it out again later by lifting it up from
14:01the inside might ruin the cake.
14:03Put the lid upside down and place the cake on the lid.
14:06The base of the container is now the lid, making it much easier to access slice by slice.
14:13Pour out water more efficiently from large jugs and bottles by swirling.
14:18This will make the liquid inside spin, creating a vortex.
14:21The vortex allows for the air to flow back into the bottle as the water pours out.
14:26Much faster than the glugging alternative.
14:31There's an easier and less messy way to remove eggshells from a boiled egg.
14:35Once fully boiled, crack the shell on both ends by tapping them.
14:39On one end, pinch off the shell.
14:41Use the opened end to blow with your mouth.
14:43The force of air will push the flesh and expand the eggshell, forcing out the egg undamaged.
14:51When the hinges of your laptop break, repairing them can cost up to $300.
14:56A far cheaper fix is to buy a picture frame and tape it to the back of the screen.
15:02You've dropped a small piece of jewelry on the floor, seemingly impossible to find.
15:07Take a stocking and place it over the end of the vacuum hose.
15:10Give the area a good vacuum and check the end periodically.
15:13You will eventually find it sitting at the end.
15:16You've drilled a hole in the wall, but the drill hole is now too wide.
15:21Remove the screw and find an object that is slightly shorter and thinner.
15:25Pieces of plastic, small wires, paper clips or even toothpicks are perfect.
15:29Place whichever item you find inside the hole.
15:32It's filled the gap enough so the screw will now re-enter securely.
15:36Pockets are usually on the left side of shirts because most people are right-handed.
15:41Is this a myth or a fact?
15:43This is actually true.
15:45Many products favor the righties.
15:47Left-handed people will relate to this on so many levels.
15:50Let's say public transport.
15:53Have you ever noticed that the scanner at stations is typically on the right side?
15:58Household equipment and devices are one more example.
16:01Scissors, tweezers, bottle openers and many other kitchen and household appliances are designed with right-handed people in mind.
16:09The same goes for shirt pockets.
16:11While some people use both hands equally and others change their hand preference between tasks, overall most people are right
16:17-handed.
16:18A study has revealed that 75% to 90% of the world's population are right-handed and 10%
16:25are left-handed.
16:26This means it's more convenient for most people to have pockets on the left side than on the right side
16:32of their garments.
16:33Try it out for yourself.
16:35Your elbow kind of folds when you try to reach into the pocket on the right side.
16:39Whereas on the left side, your elbow makes an arc shape, which makes it easier to put things inside the
16:44pocket and take them out.
16:47Eating more protein leads to having bigger muscles.
16:50What do you think about this, bodybuilders?
16:52Myth or fact?
16:54This is a myth.
16:56It's true that eating protein is essential for building bigger muscles.
17:00I mean, proteins are building blocks of your body.
17:02And yet, eating more than you need is unnecessary.
17:07Everyone should drink 8 glasses of water a day.
17:09Do you think this is a myth or a fact?
17:13This is a myth, so don't blame yourself for drinking less water than recommended.
17:188 glasses are not a magic number.
17:20Hydration needs differ from one person to another.
17:24How much water you should drink every day depends on your activity and exercise level.
17:29The temperature of the place where you live affects this number too.
17:32If you live in a hot area, you sweat more and need to drink more water.
17:36Soup, coffee, tea, fruits and other things you eat daily also contain water.
17:43Carrots are high in sugar, so you should avoid eating them.
17:46If this is true, we should warn bunnies.
17:49Any guesses, fact or myth?
17:52It's a myth.
17:53Carrots are about 85% water.
17:56One pound of cooked carrots only contains 3 teaspoons of sugar.
18:00Compared to the amount of sugar in desserts, this is nothing.
18:03Plus, carrots are high in phytochemicals.
18:06And eating them can help lower blood sugar.
18:10Medieval people believed in flat earth.
18:12Is this a myth or a fact?
18:15Obviously, flat earth is a myth.
18:17But so is the history built around this myth.
18:20You can't say that at those times.
18:22The whole world was skeptical about earth's spherical shape.
18:26Even everyday visible things proved that.
18:28For example, medieval people could see that the twilight glow during sunrise and sunset formed an arc over the horizon.
18:37Vikings wore horned helmets.
18:39Is this a myth or fact?
18:41The well-known image of a Viking warrior is almost always completed with a horned helmet.
18:47But in reality, there are no horns.
18:50There's no evidence that Viking helmets were horned.
18:55Detox juices cleanse your body.
18:57Is this a fact or myth?
18:59It's a myth.
19:01Detoxification doesn't work that way.
19:03Your internal organs are responsible for the process of cleansing the spleen, liver, kidneys, especially the liver.
19:11Your body is always in a natural state of cleansing itself.
19:15A person doesn't need to drink juices for detoxification.
19:19Nuts are junk food.
19:21Any thoughts?
19:22Myth or fact?
19:25You're right.
19:26This is a myth.
19:27Nuts are full of healthy fats.
19:29They're good for your heart and other organs.
19:33The average American throws away about 82 pounds of textile waste per year.
19:38Is this a fact or myth?
19:42Imagine all that waste.
19:44When someone throws their clothes away, they don't disappear into thin air.
19:48These items most likely reach landfills as their final destination.
19:53Donating clothes and selling them in second-hand stores are a much better option.
19:58Now, you've probably heard about life-saving laundry tricks that are said to make your clothes super clean and as
20:04good as they were on day one.
20:06What if those laundry tips are actually myths?
20:09I got three of them lined up for you.
20:12Shirts should be buttoned when you put them in the laundry.
20:15Is it true or not?
20:17This is a myth.
20:18You'd better keep zippers closed to keep their teeth from catching the fabric of other clothes.
20:23But fastening the buttons of a shirt can expand the button net and the button hole.
20:28In the long term, buttons will start slipping out of place.
20:32Washing clothes in hot water is the most effective way to clean them.
20:36Is this a myth or a fact?
20:39That's another laundry myth.
20:41You want to rid your clothes of germs.
20:43Yet, hot water alone won't be enough for this.
20:46Nowadays, many detergents can clean clothes in cold or warm water.
20:51You should remove stains from the face of the fabric.
20:55Is it true?
20:56Most people apply water and soap to the stain starting from the front side of the fabric.
21:01But that's not the best option.
21:03A much better way is to start from the back.
21:06The stain can go deeper if you treat it from the front.
21:09Try to make the stain move up to the surface rather than push it inside.
21:15Listening to music is an effective tool for learning languages.
21:18Is it a myth or fact?
21:21It's a fact.
21:22Scientists say listening to a song and humming along can help you learn a language.
21:27Most people struggle to learn grammar.
21:29Yet, in our daily lives, we don't always follow grammar rules.
21:33Songs can help you pick up informal expressions.
21:37Scientists have also concluded that music can help you remember new words and add them to your vocabulary.
21:43Let me give you an example.
21:45It's from your first year at school.
21:47Yep, the alphabet song.
21:50Are you a morning person or a night owl?
21:52Either way, you might want to know these facts and myths about sleep.
21:58The longest someone went without sleep was 11 days.
22:01Do you think this is possible?
22:03Or is it an urban legend?
22:06This is a fact.
22:07Randy Gardner set the record for the longest amount of time a person went without sleep.
22:12It was an experiment carried out by Stanford sleep researcher Dr. William C. Demond.
22:18The doctor recorded and monitored Randy Gardner's sleep activity.
22:22Gardner managed to stay awake for 11 days and 25 minutes.
22:27Your body eventually gets used to getting less sleep.
22:30Myth or fact?
22:32It's a myth.
22:34There are many studies proving that your body and especially your brain can't get used to sleeping less.
22:40Have you noticed that after a few nights of insufficient sleep, you begin to feel groggier during the day?
22:45That's your body trying to adjust to not getting enough rest.
22:49Long-term sleep deprivation affects your daytime performance, focus, and decision-making.
22:56Many grown-ups need five or fewer hours of sleep.
22:59Can it be true?
23:01Well, this one's easy.
23:02It's a myth.
23:03Experts from the National Sleep Foundation recommend that the average adult sleeps seven to nine hours per night.
23:10Some people have a genetic mutation thanks to which they wake up refreshed after a short night's sleep.
23:16But such people are an exception.
23:18One in four million.
23:20The ability to fall asleep in any place and at any time means you're a good sleeper.
23:26What do you think?
23:27Myth or fact?
23:29It's a myth.
23:30A good sleeper gets a proper amount of sleep and has a regular sleep schedule.
23:36Cats spend two-thirds of their life asleep.
23:39Do you believe that?
23:41This will probably come as no surprise.
23:43It's a fact.
23:45How many of the facts and myths did you guess correctly?
23:49Did you know that you can actually inflate a balloon without using your lungs?
23:54All you need is a plastic bottle, vinegar, baking soda, a funnel, a rubber band, and a balloon, of course.
24:03First, pull some baking soda into the balloon using your funnel.
24:07And now, pour the vinegar into the bottle.
24:11You don't need a lot.
24:12Just fill about a third of the bottle.
24:15Let's go ahead and put the balloon over the bottle.
24:18But don't tip the soda inside the vinegar yet.
24:22Secure the balloon with a rubber band and tip it over to make the soda fall into the vinegar.
24:27And now you can step back and enjoy the show.
24:30When the baking soda and the vinegar are mixed together, they release CO2 that will inflate the balloon.
24:37You can use the inflated balloon to show your friends another trick.
24:41Grab a comb and rub it on the surface of the balloon.
24:44Now you can bend the water flow in your sink with static electricity using your brand new electrified comb.
24:52Just don't try brushing your hair.
24:55Can you really pierce a balloon without popping it?
24:58The answer is yes.
25:00You're gonna need a skewer or a long needle, a balloon, petroleum jelly, and some courage.
25:07Scratch the balloon with your fingers and make it more flexible.
25:10Now, blow steadily into the balloon.
25:13Stop before blowing it to the full size.
25:16This will make the trick easier to perform.
25:18Put some petroleum jelly on the needle.
25:21Now, find this darker area near the knot where the balloon is less stretched.
25:26And just pierce it all the way through the top, like this.
25:30Balloons are made up of polymer chains.
25:32They're so tiny that they seem invisible to the human eye.
25:35This trick works because the polymer chains are less stretched on the neck of the balloon.
25:41It was enough room to allow the needle in between the chains without breaking them.
25:46But if you try the same technique on the sides of the balloon, it will definitely pop.
25:52By the way, hairspray actually helps keep the air in the balloon longer by sealing the surface.
25:57But if you apply hairspray on the outside of the balloon and then touch it when it's not yet dry,
26:03the balloon will shrivel.
26:05Isn't it magic?
26:09Beware, our next trick can make you question gravity.
26:12Pour some plain water into a glass bottle.
26:16Not much, about a quarter.
26:18Put the bottle in the microwave for a minute.
26:20Meanwhile, prepare a bowl with colored water to make the trick more visual.
26:25Take the bottle out of the microwave, turn it upside down and pour it into the colored water.
26:31The bottle will soon begin to fill with water.
26:34Can you guess why?
26:36The air expands when it's heated.
26:39The bottle and the air began to cool down and the air contracted, which caused the water to move.
26:46Not only wizards can make things disappear.
26:49Fill a plastic container or transparent glass with sunflower oil.
26:54Dip a glass rod inside the oil.
26:57Can you see it now?
26:59Oil and glass bend light the same way because they have almost equal refractive indexes.
27:05Therefore, it's impossible to see how the wand bends light inside the oil.
27:10To make this trick even more epic, pour equal parts of water and oil inside a glass and dip the
27:17glass rod inside it.
27:19You'll see it in the water, but it will disappear inside the oil.
27:25Have you seen this epic instant freezing trick?
27:28Here's how you can repeat it at home.
27:30Grab a small plastic bottle of clean drinking water.
27:34Leave it for about 4 hours to bring it to room temperature.
27:38And now, put it into a freezer and wait for an hour and a half.
27:42After that, take it out very carefully.
27:45Try not to shake it at all.
27:47Now, hit the bottle strongly or shake it and see what happens.
27:53Not only is red cabbage rich in fiber and vitamins, but it's also pretty useful for homemade scientific experiments.
28:00Boil red cabbage in pure water and wait until the water gets colored.
28:06Red cabbage contains a chemical called anthocyanin.
28:10It changes color when it's mixed with an acid or a base.
28:13That's why if you mix your cabbage with water with different ingredients, you'll get different colors.
28:19Bases like soda will make it blue, but acids on the contrary will create reddish colors.
28:25You can prove it by adding some lemon juice to your cabbage water.
28:29The water will become pinkish.
28:32And if you add vinegar, you'll get an even more vibrant pink color.
28:38If you have a juicer, you can try the same experiment with red cabbage juice.
28:42Initially, it will have a more vivid purple color, but under the influence of additional liquids, the color will change.
28:50Can you guess which color you'll end up with if you mix cabbage juice with bleach?
28:55It's almost transparent, but still has a greenish yellow tinge.
29:01The next trick is very trendy among artists.
29:04Here's what you're gonna need.
29:05Liquid soap, cotton buds, milk, and acrylic paints.
29:09You can use food coloring for this tip.
29:12Pour a little bit of milk into a wide bowl or a plate.
29:16You don't need a lot.
29:17Then, put a few drops of paint into the milk.
29:20And now, dip a cotton bud covered with soap.
29:24The patterns will begin to change.
29:26That's because the fatty molecules in the milk get attracted to the molecules of soap.
29:31When you're satisfied with the pattern, you can put a sheet of paper on top of the milk.
29:36And voila!
29:37Your abstract masterpiece is ready.
29:40In fact, this technique is related to an ancient paper marbling called ebry.
29:46Artists created colorful patterns by sprinkling and brushing color pigments on a pan of oily water,
29:52and then transformed those patterns on paper.
29:56Friction helps people walk on the road instead of sliding on it.
30:00And it also allows us to perform this cool experiment called floating rice.
30:06Fill a small plastic bottle with rice.
30:09You can use a funnel to make the task easier.
30:12Shake the rice for a while.
30:13And now, try to push a chopstick or a pencil inside the bottle.
30:17If you did everything right, the stick will get stuck in the rice.
30:22You can also try using different types of grains and see what happens.
30:27Have you ever tried to put an ice cube into oil?
30:30Well, you can try today.
30:32It will create these cute little drops that will fall into the bottom of the glass
30:36because they're heavier than oil.
30:40Here's an easy way to stick an ice cube to a string without any glue.
30:44Place an ice cube in water.
30:47Put a piece of string on top and sprinkle it with salt.
30:51You don't need much, otherwise the ice will dissolve.
30:54A pinch is enough.
30:56Wait for one minute and then gently pull the string.
30:59And there you go!
31:00The ice has stuck to the string!
31:04For this experiment, you're going to need an empty, clean soda can.
31:09Turn on the kettle and wait until it begins to boil.
31:12Carefully hold the can over the kettle using kitchen tongs.
31:16It will help fill it with hot steam.
31:19When the can is full of steam, give it an ice bath.
31:22You can put it into a bowl with cold water and ice cubes.
31:26The can should wrinkle up right away.
31:29That's because the volume inside the can decreases, reducing its pressure and allowing the external pressure to crush the can.
31:37The next trick is also about air pressure.
31:41You're going to need a glass bottle, a small piece of paper, a lighter and a peeled boiled egg.
31:47The diameter of the bottle neck should be less than the width of the egg.
31:51And it's important to use glass because plastic can melt.
31:56Now carefully light the paper, let it burn a little bit and drop it inside the bottle.
32:02Put the egg on the neck of the bottle.
32:04It should begin to bounce.
32:06And soon the pressure of air will push the egg into the bottle.
32:10もの is theesposomeplus.
32:11Yeah
32:11Let's go all the fossil water.
32:11to the bottom of the bottle.
32:12Remember this?
32:12We сидaring up really so boring.

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