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Discover the hidden uses of sugar and how this everyday ingredient links to lifetime home electricity. Learn how crystalline sucrose behaves under specific thermal and conductive conditions to unlock surprising energy potential. We break down the core chemistry in clear language. See how simple materials become powerful tools for smarter living at home.
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FunTranscript
00:00So, consider this. People started making ridge patterns on coins in past centuries to fight counterfeiters.
00:07In the old days, cheaters cut off the smooth edges of coins and used that metal to mint new money.
00:13But with ridges, it became impossible to hide the cutting.
00:17These small cylinders on the charging cables are called chokes or ferrite cores.
00:22They're magnetic iron oxide that helps to prevent electromagnetic interference.
00:27In simple words, they protect your device from faults.
00:31We all know about these little pockets on jeans where people used to keep their pocket watches.
00:36But what about these small metal buttons? They help hold the fabric together.
00:41Weavers put the buttons where the jeans can tear during moving and straining.
00:45These small holes on some backpacks were designed to tie extra gear to them.
00:50So, you can pass ropes through them and tie sneakers if you don't want to keep them inside your backpack
00:55or in your hands.
00:57This tiny dot next to the camera on your iPhone is a microphone.
01:02It helps to get good quality of sound while taking a video.
01:06The Spotlight feature on your Mac can be used not only for a quick search of files and apps.
01:12It also works as a calculator.
01:14Just type in a mathematical problem you need to solve.
01:17Spotlight also uses internal dictionary data.
01:21Enter any word in the search bar and you can get information about it.
01:25You've just bought a new bottle of oil.
01:27You're taking off the lid and looking at this little cork that you can tear off by pulling the loop.
01:33Take this thing out, but don't throw it in the trash.
01:36Put it back in an upside-down position to control the pour's flow by pressing your finger against it.
01:43Tiny ridges on the F and J keys on the keyboard help your fingers navigate during touch typing.
01:50When your index fingers are on these ridges, you know exactly where other letters are.
01:55The brushes on the sides of the escalators are not for polishing your shoes, but for your safety.
02:01These nylon bristles prevent your laces and clothes from getting inside the escalator's gears.
02:07No, that wouldn't be good.
02:09Most door handles are made of brass.
02:12This type of metal is good for fighting microbes.
02:15Bacteria can't multiply that much on such surfaces.
02:19These public toilet's cubicles don't look private for a reason.
02:23Huge gaps at the bottom were created to make you want to get out of there as soon as possible.
02:28Thanks to this design, there are almost no cubes.
02:32You can use a plastic lid from soda cups as a coaster.
02:35It has the perfect shape to hold your drink and keep a table surface from getting wet.
02:41Don't turn the lid upside down.
02:43Just put it on the table the same way it was on the cup.
02:46If you're stuck in a car during an accident and can't open the doors,
02:50you can use bars from the detachable headrest to break the window and get out.
02:56Remember those small plastic discs under the bottle lids?
02:59This little thing helps preserve vacuum inside bottles, keeping soda in a fizzy state.
03:06You've probably watched food heating in a microwave at least once in your life.
03:10Exciting, I know!
03:12But why do the developers make the doors so dark?
03:15This black film is necessary to block electromagnetic fields.
03:19Tiny dots on padlocks next to the keyhole are designed to dry out the moisture if water gets inside the
03:26lock.
03:27Also, if the lock gets jammed or starts to rust, you can pour oil into it through this hole to
03:33fix the problem.
03:35A golf ball is covered with tiny craters for good aerodynamics.
03:39They're called dimples, and this design helps the ball fly further and more evenly.
03:45Some mugs have a little groove at the outside of the bottom.
03:49It helps water flow out and prevents it from accumulating when the cup is in the dishwasher.
03:55Sunglasses were first used not to protect your eyes from the sun.
03:59They used such glasses during Arctic expeditions.
04:02A huge amount of snow can blind you just like a bright flash.
04:06To save their eyes, they came up with these unique glasses.
04:10You can use any t-shirt not only for dressing, but also as a protective layer for your luggage.
04:16Just put your clothes on your suitcase as a cover, and don't waste time plastic wrapping it.
04:22A button on the back of the shirt collar is there to keep your tie under the collar.
04:26Yes, people don't use it as intended because all ties are thinner now.
04:31But this button is still there as a decorative function.
04:35And here's the initial purpose of a tie.
04:37They created it in the 17th century Europe that tightened the collar.
04:42This way, people protected their necks from a strong wind.
04:45Then, they got used to this part of the outfit and made it a must-have accessory for royal gatherings.
04:52Soft pom-poms on hats were first invented several centuries ago.
04:57Sailors use them to avoid hitting their heads against low ship ceilings and ledges.
05:01They make most clothes hangers from cedar wood, since it contains many natural oils repelling moths that love to eat
05:09your clothes.
05:11A light bulb is spherical because such a shape allows the light to distribute evenly.
05:16Also, such light bulbs are cheaper and easier to produce.
05:20Ever found these pieces of fabric and new clothes?
05:23They're not just patches, but also testing subjects to use before washing.
05:28You can put this piece in the washing machine and see what happens to it.
05:32If everything is fine, then you can safely put your clothes in.
05:36Your ceiling fan has two modes of work, winter and summer.
05:41You need to find the switch on it.
05:43Push it up to activate the winter mode and down for the summer one.
05:47In summer mode, the fan pushes the air down.
05:50It pulls the air up in winter.
05:53Most people have this ground plunger in the bathroom.
05:57In movies, they use those to eliminate a blockage in the toilet.
06:01In fact, the plunger is to get rid of a blockage in the sink.
06:04For the toilet, you need another special device.
06:08The extra space under your oven is not for keeping pans and pots.
06:13You can put some dishes there.
06:15The heat of the stove will keep your meals warm.
06:17It's useful if you're waiting for friends late for dinner.
06:22You're taking a pack of popcorn out of a microwave after heating.
06:26See the little hole at the top of the popcorn bag?
06:29You can use it to get rid of small unpopped grains.
06:32Shake the pack over the plate, and all the grains will fall out through the hole.
06:38Almost all people use a travel pillow incorrectly.
06:41Usually, they put two ends forward and lay their heads back.
06:45Try to turn the pillow on the other side.
06:48The arc should be under your chin, and the two ends should be directed back.
06:52Lay your head forward, and your neck will feel way more comfortable in this position.
06:57And you'll get a good nap.
06:59They create magnets in a horseshoe shape to increase their magnetic power.
07:04The blue part indicates the south pole, the red part, the north one.
07:09The two poles work simultaneously and increase the attraction.
07:13Thanks to the perfect aviation design, most planes can fly a long distance even without an engine.
07:20In 1268, Roger Bacon made the first written mention on using telescope lenses for optical purposes.
07:28Magnifying lenses inserted in frames were popular for reading, both in Europe and China at this time.
07:34So it's still a question if the West took it from the East or vice versa.
07:39If you find yourself in the middle of the sea without food, sorry, you can try fishing.
07:46You can use anything for bait.
07:47Your phone, watch, keys, and you can use laces as a fishing line.
07:52Tie the bait and throw it into the water.
07:54And good luck catching the fish that swallowed your phone.
07:58It's going to be a whopper.
08:00You can turn over the tab on a lid of soda cans and use it to hold a cocktail straw
08:05in place.
08:06The blue half of the eraser wasn't originally created to delete the ink.
08:11Initially, the blue part erased inscriptions and drawings on thick paper.
08:15The red part couldn't do it without leaving streets, but the blue one handled this task perfectly.
08:22Most of us tear sticking notes off incorrectly.
08:25Try not to do it from below, but from the side along the licking log.
08:30The paper will stick to the wall for longer this way.
08:34Ever wondered what these two holes in the lollipop stick are for?
08:37All the time, you say?
08:39Well, when they put the bar in hot syrup, the liquid flows inside.
08:44It creates a solid attachment for the plastic.
08:48And so it goes.
08:52It's your birthday party!
08:54You made a wish and blew out the candles.
08:56It's time to cut this delicious round cake.
08:59Your guests can't wait to taste it.
09:02Wait a minute.
09:03Are you sure you actually know how to cut it?
09:06Normally, people prefer making V-shaped slices by default.
09:11Although this method is very popular, it's far from perfect.
09:15Some guests won't get enough frosting, while others will get too much.
09:19And besides, cakes are pretty fragile, so crumbs can fall all over the place.
09:24This alternative method went viral because of its incredible practicality.
09:29All you need to do is press a large cutting board against the cake very gently.
09:35Then slice the cake across horizontally and move the long piece onto the cutting board.
09:41Now, you can cut one big slice into several smaller slices for the guests.
09:46This will give them a chance to order exactly as much or as little dessert as they really want.
09:52Wait, who wants just a little dessert?
09:55You will also prevent the leftover cake from drying out too soon.
09:59And if someone asks for more, just keep repeating the cutting board trick as many times as you need to.
10:06If the number of guests at your party doesn't match the small size of your cake, there's an easy tip
10:11to make sure everyone's served.
10:13Cut the cake into small cubes.
10:15Put them into paper baking cups.
10:17And pierce the slices with a toothpick to make sure the layers don't fall apart.
10:22You can serve this cake canapé on a tray.
10:26When you don't have a knife at hand to cut a cake, dental floss will help you out.
10:31If you manage to do the work gently, the floss will glide through your cake with ease and keep the
10:37icing decoration in perfect order.
10:39This method is also very handy when you want to cut pie or cake layers horizontally.
10:45Of course, it's better to use dental floss with a neutral flavor if you don't want to feel the minty
10:50frost in your dessert.
10:53You're hanging some pictures or framed diplomas on a wall.
10:56I have several.
10:57But they refuse to hang straight.
10:59If you're using a wire and only one nail, it's very likely that the picture will get crooked.
11:05So, the better solution is to use two nails.
11:08They will help the artwork stay there straight.
11:11Also, make sure that the wire is only as long as it needs to be.
11:15Otherwise, the excess slack will make the picture stagger on the wall.
11:19And finally, you can use these small, clear sticky tabs.
11:23Stick them on the bottom corner of either side of your framed pictures and prevent them from slipping.
11:30Now, even the highest quality markers stop working sooner or later.
11:34But that's not a reason to say goodbye to them.
11:37Glue the markers around the outer edge of a regular flower pot.
11:41Then spray this construction with gold paint.
11:44You'll get a glamorous vase that will spice up your interior.
11:47To complete this project, you can use not only a pot, but any other cylindrical vase or tin cans that
11:55match the size of your markers.
11:57Have you ever spilled your hot drink down on your clothes as you were walking from the cafeteria to your
12:03desk?
12:03Probably yes.
12:04Most people wrap their hands around the mug or use a handle.
12:08But none of these methods is perfect because they leave room for burns.
12:13Recent studies have revealed the best way to hold a coffee mug to prevent any spillage.
12:18And I bet you don't use it on a daily basis.
12:21Put your hands in a claw-like shape and grip your mug from above with your fingers.
12:27This will protect you from burning your palm and keeping your outfit tidy.
12:31And besides, it looks kind of elegant.
12:34Now, in case you didn't know, there are little tabs on the sides of your foil container.
12:40You're supposed to push those in.
12:42Now, when you pull the foil out, it's going to glide effortlessly.
12:46And the foil tube will be fixed in the container.
12:50Shoe stores usually sell their items with small plastic hangers.
12:54Don't rush to throw away this accessory.
12:57It's not so worthless.
12:58If your shoes ever get wet, you can use it to hang them on a radiator so they dry quickly
13:04and evenly.
13:06This trick is especially handy when you get your feet wet on the way to work.
13:11If you like to wash and dry your shoes in a washing machine to keep them fresh and tidy,
13:16you know that it can get really noisy.
13:18To avoid the sound of rocks rolling around the drum, put your shoes and your laces inside a mesh laundry
13:25bag.
13:26If you don't have a laundry bag, try using an empty pillowcase.
13:30You can also put a large old towel in the washing machine together with your shoes.
13:35It'll rub against the shoes and provide additional cleaning.
13:39Just make sure you don't wipe your face with this towel afterward.
13:43Glass cleaning spray is a great emergency tool to restore your patent leather shoes.
13:49Just spray it on your shoes and wipe them using a soft dry cloth.
13:53Voila!
13:54Shining bright like a diamond.
13:57Got some creases on your shoes?
13:59No panic.
14:00Stuff your shoes tightly with some fabric to bring them back to their original shape.
14:05Then put a damp towel over the crease.
14:07Gently steam the crease with an iron.
14:10It'll get softer or disappear completely.
14:14Here's a genius tip for storing and serving fresh herbs.
14:18Cut and mix different herbs.
14:20Then put them in a plastic bottle.
14:22Screw the cap and keep it in your fridge.
14:25Now you don't have to chop your herbs every time you're cooking something.
14:29You can also make an exclusive salad dressing.
14:32Just add some oil, spices, and sauce into this bottle and shake it to mix all the ingredients.
14:39When you're reheating your food in a microwave, some part of the meal gets too hot while the rest of
14:45it stays frosty.
14:47So, in case you've been looking for different tips to deal with this issue, here's the classic one.
14:52Put your food on a plate and make a hole in the center so that your meal is donut-shaped.
14:58This way, the microwave will heat it more evenly.
15:01But don't put the dish in the center of the turntable.
15:04To heat it evenly, it's best to keep it on the outer edge.
15:08If you need to heat up two meals at the same time, put a clean upside-down cup inside the
15:14microwave.
15:15Then put your second plate on top of that cup.
15:18There you go! It's easy and time-saving.
15:22You can squeeze lemon juice out using ordinary kitchen tongs.
15:27Cut the lemon in half and put one half into the tongs.
15:30Now, press them under a bowl to collect the juice.
15:33Add some water, sugar, and ice, and enjoy your lemonade!
15:39You're cooking popcorn in a microwave and can't wait to start watching the new episode of your favorite show.
15:45After one or two minutes of microwaving, little hard kernels still stay on the bottom of the popcorn bag.
15:51People tend to grab them by mistake.
15:54Biting these little betrayers can be fatal for your teeth.
15:57But luckily, there's a little slit in the bottom of the bag.
16:01Here's what you're supposed to do.
16:02When your popcorn is ready, don't rush to open the bag.
16:06Turn the bag upside down and shake it vigorously under a bowl.
16:11All the unpopped kernels will come out.
16:13Now you can enjoy your snack safely.
16:17If you have accidentally burnt the food on your stove and want to avoid dealing with fire detectors, here's a
16:24simple trick.
16:25One of the best ways to remove smoke quickly is to use a half-wet towel.
16:30Hold on to the dry side of the towel and keep flinging it around over your head.
16:34The damp part of the towel will absorb the solid particles in the smoke very quickly.
16:40And there's no need to use a knife to peel kiwi.
16:43Just cut off the top and the bottom of the kiwi.
16:46Then gently insert a tablespoon inside of the kiwi and twist it to separate the skin from the fruit.
16:53Wow! Your kiwi is now peeled!
16:56However, some people prefer eating kiwi with skin.
17:00It's perfectly edible and provides lots of fiber, folate, and antioxidants.
17:05So, if you don't mind this fluffy texture, go ahead.
17:09But don't forget to wash it first.
17:13You know, there are all sorts of amazing things you can do with products already lying around the house that
17:20were meant for other things.
17:22We'll explore some of those, plus everyday items that have other purposes you may not be aware of.
17:28I'm also in a silly mood, so hey, let's have some fun!
17:33Many pairs of kitchen scissors today have a serrated opening where the handles and blades meet.
17:38You can use this as an herb stripper to de-stem difficult herbs like thyme, rosemary, and chives.
17:45Saves you a lot of time trying to pick the leaves off by hand.
17:49And if you're short of a vase, you could present roses to your significant other this way.
17:54Just be careful when you're pointing the sharp end.
17:58The metal tab on soda cans can be flipped around.
18:02You can slip a straw in place so you don't have to hold it up to your mouth.
18:06This stay-on tab replaced the pull ring tab created in the early 60s.
18:11You remember those, don't you?
18:12Those could be quite sharp and easily discarded where they could be a menace for others.
18:18Now, you can pop your straw straight into one.
18:21Also means you can produce some bubbles and make a mess.
18:26Sometimes, when you purchase an article of clothing, you receive a plastic baggie with an extra button and a swash
18:32of fabric.
18:33While the fabric is clearly used to patch holes, it can also be used to test the effects of various
18:40cleaners on certain surfaces.
18:41It's handy, too, to test wash cycles before using them to wash the whole garment.
18:47And if you want to clean your nose with it, that suggestion never came from me.
18:53You can use a screwdriver for leverage if you're having trouble lifting or moving something.
18:58Some also have a hexagonal-shaped handle that fits inside a wrench or spanner.
19:04You can use it to improve torque and, again, for leverage.
19:07A little easier on your hands.
19:09Some of us aren't that strong.
19:11Or maybe that's just me.
19:14Rubber bands are great for many things.
19:16But if you have a bottle that's hard to open, you can wrap the band around it for a better
19:21grip.
19:23Escalators have those fluffy black brushes for a similar reason that some have yellow lines on their steps.
19:30To try and deter people from getting too close to dangerous places.
19:34People don't always take notice.
19:36And sometimes, clothing can drape close to a point where the step meets the edge or skirt.
19:41The brush is a little barrier to help prevent this from happening.
19:45They can also catch bits of fluff and prevent other small things from falling down into the gaps.
19:52Your average pair of jeans has several features that are both functional and somewhat sentimental.
19:59The metal rivets around the pockets help secure the stress points.
20:02This ensures they last a bit longer than average, though not all jeans have them.
20:08Many still have a tiny pocket, directly above the main pocket.
20:13This was originally meant to hold a pocket watch.
20:16Even though pocket watches are mostly a thing of the past, many people still use this space to store coins,
20:23rings, or even a portable USB.
20:27This may seem a little obvious, but if you've ever wondered what all the notches are in a car tire,
20:33it's for traction on the road.
20:35However, there are also a good indicator if your tire is getting too worn down.
20:40If those notches aren't so deep anymore and are almost flush with the road, it's time to replace them.
20:47If you don't, the next time you try to stop suddenly at a stop sign, you might be surprised to
20:53find your car has turned into a giant roller skate.
20:57Those takeaway containers most associated with Chinese restaurants are designed to not only carry your food home, but to store
21:05them in the fridge.
21:07They double as a plate, as you can eat straight out of them and don't have to worry about dirty
21:12dishes.
21:13Yay!
21:13They were actually patented way back in 1894 to transport freshly shucked oysters and were known as oyster pails.
21:22They were later adapted to use as leak-proof containers for food.
21:27While you're sitting on an airplane and looking out the window, you may have noticed those little holes, or in
21:34some instances, a small singular opening near the bottom.
21:37This is called a breather hole, and no, it's not for you.
21:41It's designed to equalize the difference in air pressure which builds up between the pressurized cabin and the atmosphere outside,
21:49especially during high altitudes.
21:51It also releases moisture from between the panes to avoid frost from forming on the windows and obstructing that all
21:59-important view.
22:00Sorry, but it looks like you won't be drawing a smiley face on it anytime soon.
22:06This was first introduced way back in 1956 by a company in Japan.
22:11Pretty cool, huh?
22:12They got their inspiration from snap-off rows on chocolate bars.
22:16Just don't get the two mixed up.
22:19One doesn't taste good.
22:21When it comes to measuring tape, almost every reel has an empty slot in the metallic end.
22:27This is called a nail grab, so you can attach it to a nail or screw.
22:32A handy trick to do measurements without requiring someone else to hold it in place.
22:37Ooh, very nifty.
22:40Bobby pins have grooves on one side to hold your hair in place better.
22:45Crazy notion, huh?
22:46The straight side goes face up while the grooves go down against your head.
22:51They're called bobby pins because of the bobbed hairstyle, which was popular in the 1920s, though the pins were invented
22:59in the 19th century.
23:00The look is gone, but the pins remain.
23:03Please take them out before you wash your hair, as they don't look great stuck to your fingers.
23:09If you've been in a car or a bus and noticed the textured black dots baked into the black edges,
23:16you've probably worked out that it's not there for its pretty looks.
23:19It's called FRIT, a ceramic paint.
23:23Its main purpose is to protect the window from ultraviolet rays.
23:27It also creates a rough surface for the adhesive to cling to.
23:31Now, if you see a pink lump of adhesive in the corner, please do not touch it.
23:37It's actually someone's old bubble gum.
23:41If you take a look at the bottom of the lock, chances are you'll see one or two little holes.
23:46This is to let water out from the inside that may have been trapped due to rain.
23:51This mini-draining capability prevents the inner working from rusting over or freezing in place if the weather is very
23:59cold.
24:00If, in another situation, the lock becomes stuck, you can ease an oil-based product inside to lubricate the lock
24:08and get it working again.
24:11If you've lost the key and want to ease your frustrations, you can yell into the holes.
24:16It won't do anything to unlock it, but it may help you feel a little better.
24:21Some dress shirts have a fabric loop on the back.
24:25You guessed it, it's used for hanging the shirt up.
24:28The loops were reportedly first used in the navy, as it was easy to simply hang them on the wall.
24:34During the 1960s in colleges, the fashion of the day was to wear the shirt buttoned all the way to
24:41the top, which made them difficult to hang.
24:43So, designers began putting the loop on the back.
24:47If the student removed the loop, it signified that they were going steady in a relationship.
24:52Unless your friend ripped one off for a prank, now everyone's asking whom you're with.
24:58There's a little more to this story, but we haven't got time to hang around.
25:03And yes, that's a bad pun.
25:05On purpose.
25:06It's what I do.
25:08Ever wondered why coins have those little ridges along the edge?
25:12It's a leftover from earlier times when they were worth more.
25:17Counterfeiters could easily file the edges off to sell as gold or silver coins to make some profit.
25:23The ridges were created so it was much easier to tell which of the coins had been altered.
25:28It's not needed today, but the coins still have that altered style.
25:32Now, if you ever get really bored, you could try counting how many ridges there are.
25:38Actually, that is a very boring idea.
25:41Forget that and watch another Bright Side video instead.
25:46Okay, I know it's kind of cold to the touch, especially on a freezing winter's day.
25:50But did you know that brass doorknobs actually serve a purpose apart from looking classy and shiny?
25:55Since it's a copper alloy, brass has antimicrobial properties.
25:59That means it can help get rid of harmful germs and bacteria, sometimes in up to two hours.
26:05In high-traffic areas, that's all the more useful.
26:08But since brass is much costlier than other metals like nickel and steel, you barely see these types of doorknobs
26:14anymore nowadays.
26:16Speaking of lovely multi-purpose items, most screwdrivers have a tiny little secret of their own.
26:21They can sometimes be slid through a wrench so that they can be used to create more torque when twisting.
26:26Not to mention the uses when it comes to bolts in hard-to-reach places.
26:31There's a reason why buttons on women's shirts are for the left-handed, and it has nothing to do with
26:36fashion.
26:37This practice dates back to the times when chambermaids were helping ladies dress themselves,
26:42and it was easier for them to perform their job with this orientation.
26:46Having the buttons placed as such indicated a sign of wealth,
26:50so it's easy to imagine why the practice carried on, even though most people dress themselves nowadays.
26:56Next time you receive a package in your mail, take a look at your box cutter.
27:01If it features some diagonal lines on the blade, you're in for a little design perk.
27:05Turns out that these are blades that snap off.
27:09Continuously cutting cardboard can dull the sharp edge of the blade.
27:12To help prevent the need to buy a brand new box cutter,
27:14the top segment along the next line can be broken off to reach a new sharp edge.
27:19To do this, check out the small hole at the base of the tool, sometimes called the blade snapper.
27:25The people that first came up with this brilliant invention were engineers,
27:29inspired by the way chocolate bars are segmented.
27:32Hold on a minute, don't throw away the cardboard package just yet.
27:36Most likely, you'll have some silica gel packets somewhere at the bottom of the box.
27:40Since this gel is basically a drying tool, it gathers up the moisture out of its environment,
27:44so you can store these packets for further occasions.
27:47Whether you'll need to dry out your phone or some other electrical object,
27:52you can place them in a container next to the silica gel to reduce the damage.
27:56You don't have to be a mechanic to know when a standard car tire needs replacing,
28:00since they come equipped with a neat indicator.
28:03Take a closer look, and you'll see that treads within the tire are a bunch of rubber notches.
28:09When the treads are evened out with the perpendicular bars,
28:12it's a sign you need to book an appointment with your local car service.
28:15Since most likely, the tires have lost most of their traction
28:19and may not be safe for driving any longer.
28:22The upper corners of a car windshield feature textured black dots melted into the glass edges.
28:27This neat add-on isn't there for design purposes.
28:31It's called frit glazing,
28:33which means that a special type of ceramic paint is added to the window
28:37for protecting its sealant from UV rays.
28:40It also conceals and creates a coarser surface for the adhesive used to set the window in place.
28:47Whenever you're up for a drive,
28:49check out if there's a small tab under your car's rearview mirror.
28:53Bet you didn't know it's there to help switch the mirror from daytime to nighttime views.
28:59It uses a prismatic glass technology to blur the reflection
29:03and reduce the glare of headlights behind you in traffic.
29:07People came up with these manually tilted mirrors in the 1930s,
29:10but they became standard somewhere in the 1970s.
29:14While you're in the car,
29:15check out the headrests,
29:16as you most likely don't know that they carry a little disguised purpose.
29:21Of course, they're adjustable to accommodate passengers of any height
29:24so that they get the proper support for their heads and necks.
29:27The hidden feature is that they are detachable and come with two very solid metal bars.
29:33Should you ever find yourself stuck in a car and need to make a fast getaway?
29:37These bars come in handy to crack out the car windows.
29:41So you're out for a drive and you're suddenly out of gas.
29:45What I'm about to describe sounds more like a meme than an actual situation bound to happen.
29:49But what if you're in such a hurry that you accidentally drive off with the gas nozzle still in the
29:55tank?
29:55Well, the nozzles have been designed to prevent any hazards from happening, rest assured.
30:01They feature a breakaway device that will allow the hose to separate when taken out with enough force.
30:07Initially designed in the early 20th century to be worn exclusively by basketball players,
30:12sneakers soon became one of those fashion fundamentals, similar to jeans and leather jackets.
30:17If you take a closer look at them, you'll see they have two extra holes on the side, similar to
30:23the shoelace holes.
30:24They're manufactured as such not only to provide extra ventilation,
30:28but to allow people to get extra creative with their laces when wearing the shoes.
30:32Admit it, you've always thought that chopsticks are merged at the end for the sole purpose of keeping them together
30:38until you're ready to dig into your meal.
30:40That may or may not be the whole truth.
30:43Under a more detailed inspection, the wooden tools feature a square-shaped end.
30:47Chopsticks manufactured like this date back to an old Japanese traditional design,
30:52which can help with breaking the ends easily.
30:55The separated end can then be used as a resting block for the chopsticks
30:59to keep it more sanitized in hopes it can be used again,
31:02since they won't be touching the table or any other surface.
31:06Women's bikes have a special design, which, surprisingly, has a historical and fashionable purpose.
31:13The lower frame is for the most part meant to make up for the generally shorter height of ladies,
31:18compared to that of the average gentleman.
31:20While that is the case for handlebars and saddles,
31:23the overall frame is lower for an additional purpose.
31:26Way back when women wore long skirts and dresses all day,
31:30every day they needed to make sure their outfits wouldn't get caught in the frame.
31:34That's how we came up with a lower-framed bicycle,
31:37perfectly made for women and their needs at the time.
31:40The fact that toothpastes are multicolored is not just a nice perk to make dental hygiene more fun.
31:47There's a secret meaning related to each of the colors, which dates back to the 1970s.
31:52In those days, people grew more and more interested in their oral health care,
31:56and as such, they were looking for products which could do more than merely clean their teeth.
32:02One company was the pioneer in that regard,
32:05adding mouthwash to its toothpaste, meaning the blue strip.
32:08They later added on the red strip,
32:11meant to feature ingredients which helped with gum care.
32:14Speaking of toothpaste, check the cap next time you open a new tube.
32:18You may be in for a little surprise.
32:20There's a pointed cone shape inside the cap,
32:23so you can puncture the seal of the toothpaste without cutting yourself or ruining your manicure.
32:28Not to mention, it's more hygienic since you won't be able to transfer germs
32:31or other bacteria into the product itself.
32:35On the subject of bathroom countertop items,
32:38toothbrushes come with a neat add-on hidden in the bristle patterns.
32:42Apart from making the toothbrush look cooler,
32:44they also do come with a practical purpose.
32:47Most toothbrushes come with a pattern of blue bristles intertwined with white ones.
32:52The blue dye is meant to fade out,
32:54signaling the time when you need to replace your toothbrush.
32:58Dentists say that toothbrushes should be replaced every 3 to 4 months,
33:02but it does serve as a great reminder in case you forget.
33:05Still love playing with Lego?
33:07Don't judge.
33:08Hey, it's a great hobby for all ages.
33:10Notice there's a hole on top of the Lego heads?
33:13Behold, you're looking at a safety feature that the people at Lego
33:16designed to prevent choking hazards.
33:19The most dangerous issue should a person swallow any of these pieces
33:23is the blocking of the airways.
33:25Designing a hole inside the Lego head helps the air to flow freely through the piece
33:30until it can be removed safely.
33:33We're now used to all sorts of modern light bulbs,
33:36some tubular, some shaped like diamonds,
33:38and some even twisted altogether.
33:41Historically, light bulbs were round and the initial shape served a purpose in itself.
33:46It was mainly connected to the fact that glass bulbs were hand-blown,
33:50which gave them the round shape to begin with.
33:52The hidden practical reason was that the light bulb filament
33:55needed to be at the same distance from every surface of the glass sphere.
33:59The easiest way to achieve this was to make the glass in the shape of a globe.
34:06You're thirsty, so you crack open a soda can and take a few big gulps.
34:10Next thing you know, you're out of commission.
34:13Turns out, that can was contaminated with something nasty,
34:17like rat urine, and you had no clue.
34:21Just goes to show, you never know what might be lurking in that seemingly innocent drink.
34:27During transportation, storage, or handling,
34:30cans can pick up germs, bacteria, and dirt.
34:32When you drink straight from the can,
34:35those germs can easily enter your body.
34:38Cans are often stored in warehouses
34:40and rarely get a good cleaning before they reach you.
34:43Warehouse conditions can be pretty gross.
34:46Think rats running over them and less than ideal hygiene.
34:51To stay safe, it's a good idea to clean cans before drinking from them.
34:55Experts suggest giving them a quick wash with soap and water to avoid contamination.
35:00Studies have shown that unwashed bottles can be full of bacteria,
35:04so this step is really important.
35:07Now, quick question.
35:09Who's taken out more people?
35:11Sharks or vending machines?
35:14Surprisingly, vending machines have a darker history.
35:17Let's dive in.
35:18But first, let's define what counts as a vending machine casualty.
35:22We'll rule out things like expired snacks or electric shocks.
35:26Those aren't the machine's fault.
35:28What we do count are incidents where someone was severely harmed or, what's worse,
35:33passed away from rocking or tilting the machine.
35:36For sharks, any fatal encounter counts.
35:41In a 1995 report, there were two severe incidents that ended up in demise
35:47and one serious injury linked to vending machines.
35:50Since 1978, there have been at least 37 such incidents and 113 injuries,
35:57which gives us about two fatalities per year.
36:01Compare that to one shark-related incident in 2021.
36:05However, this data is quite old.
36:07But since 2008, there haven't been any reported vending machine incidents.
36:12Why the drop?
36:13It could be due to warning signs and credit card readers reducing the need to shake machines.
36:19But remember, your risk varies based on where you live and your habits.
36:24In the end, the vending machine versus shark comparison isn't quite accurate anymore.
36:29Today, you're more likely to have a serious encounter with a shark than a vending machine.
36:34But the point remains.
36:35Sharks aren't the bloodthirsty hunters they're made out to be.
36:40So, someone pointed out your visible nose hairs and now you're looking for ways to deal with them.
36:45You might think plucking is the way to go, but hold up, it's not as safe as you think.
36:50Here are three solid reasons to avoid plucking your nose hair.
36:55Your nose is full of delicate nerves, follicles, and plenty of bacteria.
37:00Plucking nose hair can damage the sensitive skin inside your nostrils, letting germs in and causing issues like infections and
37:07inflammation.
37:09Also, just like with waxing, plucking nose hair can result in ingrown hairs.
37:14As the hair grows back, it might curl into the follicle, causing bumps, discomfort, and inflammation.
37:20This can lead to folliculitis, which shows up as small, pus-filled red bumps and can be itchy or painful.
37:27In severe cases, plucking nose hairs can cause nasal furunculosis, a deep follicle infection with swelling and discomfort.
37:36This infection can spread to blood vessels near the brain, potentially leading to cavernous sinus thrombosis,
37:43a condition where blood clots form behind the eye sockets.
37:46If not treated, this condition can be life-threatening and may cause permanent brain damage.
37:52To avoid these problems, go for trimming your nose hair instead.
37:56Trimming doesn't make your hair grow back thicker or faster, and it helps maintain the right amount of nose hair
38:01to keep out pathogens.
38:05Contact lenses are meant to help you see, but they can make you turn completely blind.
38:11One big no-no is wearing your contacts in the shower.
38:14It's bad for both your lenses and your eye health.
38:18Showering with contacts is like swimming or sleeping with them in.
38:21It's a common mistake.
38:23Water and contacts just don't mix.
38:26You need to keep your lenses clean to avoid any issues.
38:30If water gets behind your lens, germs or chemicals like chlorine can get in there and cause trouble.
38:36At best, you might end up with sore or itchy eyes.
38:39Worse, you could get conjunctivitis from a bacterial infection.
38:43In rare, serious cases, you might even face infections, which can sometimes lead to blindness.
38:50Most people wear contacts in the shower accidentally rather than doing it on purpose.
38:55If this happens, close your eyes right away and carefully step out of the shower to remove your lenses.
39:00If your eyes feel sore or look red afterward, contact your optometrist, ASAP.
39:07Always use the cleaning solution your optometrist recommends to sterilize your lenses before putting them back in.
39:13But really, it's best to take out your contacts before showering or bathing.
39:18If there's one piece of home decor you should keep a close eye on, it's snow globes.
39:23They might seem harmless, but a family in East Hampton, Massachusetts would beg to differ.
39:28In a crazy turn of events, a snow globe sparked a fire in their apartment while no one was home.
39:35Luckily, quick-thinking neighbors and a swift response from the fire department kept the blaze from spreading through the entire
39:41complex.
39:42It was a normal Thursday morning when, around 11.30 a.m., neighbors heard smoke alarms blaring in the apartment
39:49and dialed 911.
39:51Firefighters arrived to find the place locked, so they had to force their way in.
39:56Inside, they found a small fire on the coffee table and a room filled with smoke.
40:01There, they also saw the culprit.
40:03It was a snow globe.
40:04It was sitting just right on the coffee table, and the sunlight hit it at the perfect angle, magnifying onto
40:11some cardboard and styrofoam and setting them on fire.
40:14While it's not calming, fires started by magnified sunlight do happen.
40:19Many firefighters have seen blazes ignited by mirrors and magnifying glasses.
40:24So, keep those snow globes out of direct sunlight.
40:27Better safe than sorry.
40:32Alright, let's talk about fatal fruit.
40:35No, I'm not going to bore you with another lame list of the most poisonous fruits out there.
40:40Instead, I'm going to tell you about something heavenly tasty that can make you teleport to the heavens in a
40:46matter of seconds.
40:48Meet the coconut.
40:49This seemingly innocent fruit has a dark side.
40:53Coconuts are responsible for around 150 fatalities each year.
40:58These bad boys have a whole page dedicated to the fatal incidents they've caused.
41:03A full-size coconut weighs about 3 pounds 3 ounces.
41:07And if you know a thing or two about physics, you'll understand that gravity makes them even more dangerous when
41:12they fall from trees.
41:14But it's not just falling coconuts you need to worry about.
41:18Consuming large amounts of coconut water can lead to sudden cardiac arrest due to hyperkalemia, thanks to its high potassium
41:26levels.
41:27And while rare, there have been cases of anaphylaxis in people with coconut allergies.
41:32While the most common way coconuts cause harm is by falling and hitting someone, there have been some unusual incidents
41:39too.
41:39In December 1923, a man in Newcastle, Pennsylvania passed away while trying to crack open a coconut with the butt
41:47end of a loaded revolver.
41:49It went off and he was shot in the abdomen.
41:52You know those handy selfie sticks that help you nail the perfect shot?
41:56Turns out, they can be way more dangerous than you'd expect.
42:00These little gadgets have led to a surprising amount of injuries and even some fatalities.
42:05People have accidentally knocked themselves or others out, taken a tumble off cliffs, and even been hit by cars while
42:13trying to get that Insta-worthy pic.
42:16Some popular landmarks have even banned selfie sticks altogether.
42:20For instance, the oceanfront in Mumbai has said no to selfie sticks.
42:24India, by the way, leads the world in selfie-related deaths.
42:28Nearly 40% of the 49 globally recorded fatalities over the past three years happened there.
42:35If you still think selfie accidents aren't a big deal, consider this.
42:39From 2008 to mid-2021, a staggering 379 people lost their lives while trying to get that perfect shot.
42:48So yeah, it's definitely something to take seriously.
42:52Most kitchen shears have metal plier-like teeth in the middle, between the handle grips.
42:57They can help you crack nuts, crab shells, and release other tough products.
43:02You can also open jars and bottles, or remove herb stems with their help.
43:07You can keep your cold meals cold and your food fresh by making a DIY ice pack.
43:13Take a sponge and fill it with water.
43:16Then put it in a plastic bag and leave it in the freezer.
43:19Once the sponge is frozen, it'll stay this way for a long time.
43:23Keep in mind that you should use a watertight bag and a fresh sponge.
43:28If you turn over a Tupperware container, you'll see some symbols.
43:32They'll inform you if you can put the container in the dishwasher, if it can be microwaved or frozen.
43:38You may even find out how you can recycle the thing.
43:43Staplers actually have two modes, not just one.
43:46There's a metal plate on the lower part of the device, which helps bend the staples inward after they've pierced
43:52the paper.
43:52What many people don't know is that you can turn this plate around to switch from the staple mode to
43:59the pinning one.
44:00The pinning setting is for temporary fastening.
44:04The staples bend outward, making them easier to remove when necessary and damaging the paper less, too.
44:11When you take a sip from a coffee cup closed with a lid, the air pressure inside the cup drops.
44:18That's why the air from the outside tries to push into the cup.
44:21The tiny hole on the lid allows some air to enter this way, and the liquid can go out of
44:27the main hole more smoothly.
44:30It's often hard to figure out how much detergent you need to clean your laundry well, but not go overboard.
44:36Pay attention to the cap of your detergent.
44:39It usually has a marker indicating how much product you need to add to your laundry.
44:44Or there might be an instruction on the bottle.
44:47It'll let you know how to measure the detergent.
44:50You can use most screwdrivers together with a wrench to create more torque.
44:55Just place the wrench over the handle of the screwdriver.
44:58This way, you'll need to apply a lot less force than before.
45:02You'll also be able to get to hard-to-reach areas more easily.
45:06The hole in a ruler can be useful if you want to hang the device on a hook.
45:11You can also place a pencil tip in this hole if you need to draw a perfect circle.
45:17Coffee stirring sticks have holes in them because those help reduce the resistance from your drink.
45:23This way, they can stir sugar much more effectively.
45:27Such a design also makes these plastic sticks tougher and prevents them from bending in hot water.
45:33And since stirring sticks are partially hollow, less plastic is used during their production.
45:40Some boxes of chocolates have little dents in between the holes for candies.
45:44If you push such a dent, the chocolates surrounding it will pop out of their compartments.
45:50The small bumps on the F and J keys on the keyboard help people find the right keys without looking
45:57down.
45:57It's especially convenient for those who use touch typing.
46:01The rumble strips on the sides of the road are placed there to alert drivers who doze off behind the
46:07wheel.
46:08When their tires move over these strips, the noise and vibration work like an alarm clock.
46:14The black grate on a microwave is called a Faraday shield.
46:19It contains the electromagnetic energy inside the oven and protects the exterior from radiation.
46:25The grate also speeds up the heating process.
46:29Bottles have long necks so that your drink stays cool longer.
46:33Hold the neck, not the bottle itself, and your drink won't warm up.
46:37Dimples on the surface of a golf ball increase its lift and reduce air resistance.
46:43It means that the ball can go further.
46:45The dimples don't have to be spherical.
46:48They can be hexagonal or have any other shape.
46:52There's a tab on the bottom of your rearview mirror.
46:55If you push it back during nighttime driving, the headlights of the car moving behind yours won't be so blinding.
47:01If you're driving during the day, pull the tab forward.
47:05You can peel an orange more effectively if you cut into the peel at the top and bottom first.
47:11Then make a slit on one side and just pull the peel open.
47:17Headrests in cars are detachable.
47:19You can use one to break the windows if you get stuck in your vehicle.
47:23But by smashing the glass, you can easily hurt yourself.
47:26So try sliding one of the prongs in between the windowpane and the door.
47:31Then pull the headrest towards yourself.
47:33The window will shatter.
47:35But hey, I'd try the door lock first.
47:39Solo cups used at barbecue parties can help you measure liquids.
47:43The bottom line equals one ounce.
47:46The second line means you've poured five ounces.
47:49And the third line means 12 ounces.
47:52Sneakers were originally invented for basketball players.
47:56And since they needed to lace their shoes in the most comfortable way, side holes were invented.
48:01Those helped players lace their sneakers in any way they liked.
48:05And they accommodate anyone's foot.
48:08Little buttons on your jeans are called rivets.
48:11They were originally placed there to prevent the seams from ripping.
48:14In the past, mostly miners and other workers wore jeans.
48:19That's why this item of clothing had to be particularly durable.
48:23And even though these days, jeans aren't under such stress, the tradition of using rivets still remains.
48:30A big toothy spoon comes in handy when you need to pull your spaghetti out of the pot.
48:35And the hole in the middle of this spoon can help you measure portions.
48:40One portion equals as many dry noodles as you can fit into the hole.
48:45Sometimes, pre-rinsing dishes may lead to your dishwasher cleaning them worse than it could.
48:51Special sensors inside modern dishwashers can perceive how dirty your plates are.
48:56And after that, they send a controlled jet of water to wash all that stuff off.
49:01The only thing you're actually supposed to do is remove solid food from your plates and stack them up properly.
49:08Ribbed ketchup containers that they give you at fast food restaurants can get a bit bigger.
49:12Just pull the ribs outward and your container will house much more sauce.
49:18While using a plunger on a clogged kitchen sink or toilet, make sure you've got the right tool.
49:24If it has a standard bowl-shaped rubber head, it's perfect for flat surfaces such as a sink or a
49:30tub.
49:31But the one designed for toilet pipes has a narrower head.
49:36The hole near the rim of your bathroom sink is there to prevent overflows.
49:41Thanks to it, all excess water goes into the siphon.
49:44Plus, it helps your sink drain faster.
49:47The hole gives the air gathered in the siphon somewhere to escape.
49:52The hole in a lollipop stick can save your life.
49:56If the stick gets stuck in someone's mouth, the hole will prevent this person from choking.
50:01But the original reason for it is to simply not let the candy run off the stick.
50:06During production, the liquid treat is poured on top of the stick.
50:10The stick is hollow inside, so the candy gets inside it from both the top and the side, through that
50:16exact hole.
50:17And when it gets solid, it keeps perfectly on the plastic tube.
50:23Most padlocks have a tiny hole on the bottom.
50:26It's needed to drain water from the lock and avoid corrosion.
50:30By the way, it's the best place to lubricate a padlock.
50:34Just put a drop of oil there, and the key will turn much easier.
50:38If you don't see a hole on the bottom, the lock is supposed to be used inside.
50:43Instead of opening a banana at the stem, turn it upside down and peel it from the bottom.
50:49It opens much more easily this way.
50:52A utility knife can serve you much longer than you might think.
50:56Look at the blade carefully.
50:58It's made of parallel sections.
51:00Once the knife gets blunt, you should break off the top section.
51:04You can do it with the help of the cap you'll find at the bottom of the instrument.
51:08In no time, you'll have a sharp blade again.
51:11The stripes on headphone jacks keep the wires insulated from one another.
51:16One stripe means the headset has a mono signal.
51:19Two stripes indicate you'll have stereo sound.
51:22And three stripes means the headset also has a built-in microphone.
51:27You can usually find some silica gel in bags, shoes, and many other things you buy.
51:32This gel absorbs excess moisture.
51:35Don't throw it away.
51:37Every time your shoes get wet, put some packets of silica gel inside them.
51:41It's very convenient to use bread tags to organize your cords.
51:45Just take a bread tag and several cords and clip them together.
51:49You can also write notes on these tags and use them as reminders.
51:53You can also write notes on these tags and use them as reminders.
51:55You can also write notes on these tags.
51:56You can also write notes on these tags.