- 4 hours ago
Discover the truth about battery longevity and the secret features in your chargers that can enhance performance. Learn how manufacturers might want your battery to fail, but with our insights, you can uncover the hidden overrides that boost your tech's lifespan. Stop relying on repairs and start maximizing what you already have with these clever engineering tricks. Don't miss out on the opportunity to keep your devices running longer!
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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.
01:20Enter 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.
02:36It 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 door so dark?
03:15This black film is necessary to block electromagnetic fields.
03:20Tiny 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.
03:34A 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.
04:56Sailors use them to avoid hitting their heads against low ship ceilings and ledges.
05:02They make most clothes hangers from cedar wood, since it contains many natural oils,
05:07repelling moths that love to eat your 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.
06:33Shake 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.
07:07The red part, the north one.
07:08The 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.
07:49And 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.
07:59You 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.
08:18But 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 wall.
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.
08:52Did you ever notice that the toilet paper color is usually white?
08:56But this color wasn't always a favorite.
08:59In fact, colored toilet papers popped out on the shelves in the 1950s.
09:04Homeowners purchased pink, blue, yellow, green, and even black paper.
09:10Because these colors matched the interior.
09:12But eventually, many doctors began to associate the dye in colored toilet papers with increased health risks.
09:20Also, the dye didn't allow the colored paper to decompose as quickly when it was flushed down.
09:25Which increased the risk of clogging septic tanks.
09:28This made manufacturing and retail prices too high compared to the basic white paper.
09:34And eventually, the demand began to fall.
09:39And now, let's take a closer look at these fancy patterns.
09:43Most people probably don't care about the decorations when it comes to their toilet paper.
09:48However, these patterns still exist.
09:50But why?
09:52Well, there are several opinions.
09:54Some say it's just a marketing tool.
09:57Manufacturers use pretty decor to make their products look more aesthetically pleasing.
10:01And to make customers associate their brand with elegance and a luxurious lifestyle.
10:07Another explanation is more practical.
10:10These patterns fluff up the paper, which makes it more absorbent.
10:15Speaking of fluffiness, have you ever wondered why they have such rough toilet paper in public toilets?
10:21The most obvious answer is that high-quality toilet paper is more expensive.
10:27Also, companies prefer purchasing giant rolls of low-quality paper because they can change them less frequently.
10:33This decision also helps prevent stealing.
10:37Yes, people actually steal paper from public toilets.
10:42Have you ever noticed that light switches in public toilets are usually placed outside?
10:47Well, it's not a coincidence.
10:49Construction companies do it for safety reasons because, as we all know, electricity plus water is a dangerous combination.
10:57And light switches are connected to power.
11:00Therefore, electricity literally flows through them.
11:03Of course, professionally installed switches will have a bunch of additional safety precautions.
11:08But most builders prefer not to take risks.
11:11The UK has far stricter rules for light switch safety compared to the US.
11:15That's why, if you live in London, you'll probably find light switches outside the bathroom more commonly.
11:22But don't worry.
11:24Most bathrooms in the US feature independent electrical circuits.
11:28This provides additional safety in case of accidental electric shock.
11:32When any change in the electrical current happens, they should shut off automatically.
11:39There are so many awesome lighting opportunities in this world.
11:43But why are the traffic lights red, green, and yellow?
11:47Turns out there's a reasonable explanation for it.
11:51Before traffic lights for cars, there were traffic signals for trains.
11:55At first, railroad operators used white color to mean go, red to mean stop, and green to mean caution.
12:02But later, they realized that white wasn't such a good idea.
12:06Because bright white light could easily be mistaken for stars during the night time.
12:11So railway companies changed the white color for green to mean go, and yellow to mean caution,
12:16because these colors are easily distinguishable from the others.
12:20And eventually, this tradition spread to traffic lights for cars and became a standard.
12:26As for the red color, it has the longest wavelength,
12:29which means that drivers can see it from a greater distance than other colors.
12:34And the color yellow was chosen as a caution sign,
12:37because it has a slightly shorter wavelength than red, but still longer than green.
12:44What's the dustiest room in your house?
12:47Usually, the answer is a bedroom.
12:49But why?
12:51Bedrooms tend to generate dust from skin cells, dust mites,
12:54and fibers from fabrics in your bedsheets, carpets, and curtains.
12:59If you have a pet, its fur and skin cells add a significant amount of dirt to this dusty party.
13:06Luckily, there are simple ways to make your bedroom less dusty.
13:10This includes making your bed every day and cleaning the area regularly with both a vacuum cleaner and water.
13:16You can try to get rid of carpets and unnecessary furniture and decor items that tend to collect dust.
13:23Also, pay attention to the quality when you buy curtains or bedsheets.
13:27The looser the fabric, the more dirt it collects.
13:31And finally, you can ban your pet from entering the bedroom.
13:34But let's be honest, you would never do that.
13:38Modern air purifiers, air conditioners, and ceiling fans can help make your sleeping area cozier.
13:44But make sure to clean them regularly.
13:46Otherwise, if your filter is dirty or clogged up with fur or any other pollutants,
13:51it won't collect new dust properly.
13:54And the dust would end up on your bedroom surfaces.
13:59Speaking of dust, did you know that you can clean the edge of a broom with a dustpan?
14:04This zigzag over here is not only for aesthetic purposes.
14:08You can use it as a comb for the bristles.
14:11Have you ever had these marks behind your ears after wearing your glasses?
14:16Sometimes it can even take them weeks to go away.
14:19Well, it's a sign that the side pieces of the glasses, called temples, are not adjusted properly for your head.
14:26In other words, they're too tight.
14:29This can cause skin irritation and even headaches.
14:33If they're bent towards the area behind your ears, they can press on the fragile part of the skull.
14:38So, keep in mind that temples should not only have the correct size, but also correct adjustment.
14:45A professional optician can easily fix this problem.
14:48It's way safer than trying to do it on your own.
14:53Box graters can be used in a horizontal position, too.
14:56In many cases, it's much more convenient to grate a carrot or a big block of cheese this way.
15:03If you want to grate a soft product like goat cheese or mozzarella,
15:06you can put them in the freezer for about 30 minutes before grating.
15:10Also, there's a way to make the cleanup easier and prevent the cheese from sticking.
15:15Spray the grater with a small amount of oil before using it.
15:19And now, let's take a look at the most unpopular sides of the box grater.
15:24Have you ever used them?
15:26This side is actually designed for slicing.
15:29It's pretty handy if you want to make thin vegetable slices for your salad or pasta.
15:34Or, slice potato chips.
15:36And these tiny punched-out holes are designed for zesting or very finely grating.
15:44Graters are pretty useful for the next non-food tip.
15:47If you're on a budget, you can purchase this super cheap laundry soap.
15:51Grate a small amount and throw it right into your washing machine instead of using the regular washing gel.
15:58Did you know that you can change which way the refrigerator door opens?
16:03There are hinges over here.
16:05If you attach them on the other side, the doors will swing the other way.
16:08But before trying to do any repairs by yourself, make sure to disconnect the power source.
16:13And read the instructions for your particular model of the fridge.
16:18Have you ever noticed that there's a shiny side and a dull side to tinfoil?
16:23Many people believe that it matters which side is used up or down because the shiny side would trap the
16:29heat better.
16:30But, in fact, it makes no difference at all.
16:33The manufacturing process makes the two sides look slightly different.
16:37But they both serve their purpose equally.
16:42Tinfoil can be used not only in the kitchen.
16:45Here's a little-known battery hack.
16:47Let's say you're out of AA batteries.
16:50No worries.
16:51Use a smaller AAA battery and a bit of tinfoil.
16:54Just insert it on one of the ends.
16:56This will work because both AA and AAA batteries carry the same amount of voltage.
17:03Did you know that Chinese take-out food containers unfold and turn into plates?
17:09All you have to do is just to disassemble it from the two sides.
17:13And gravity will do the rest.
17:15By the way, the old-school name for this type of paperboard container is an oyster pail.
17:20Because it was originally designed to hold oysters.
17:24Decades ago, no one would ever imagine keeping a stick in their pocket that could hold hundreds of gigabytes.
17:29We've come a long way since then and got used to USBs transferring our files from device to device with
17:36ease.
17:36In 2000, two major companies developed and sold the first USB flash drives 1.0, which snowballed into USB 2
17:45.0, 3.0, Type-C, and so on.
17:49Physically, they can endure rough treatment and won't get damaged easily, especially if you get proper protection.
17:54By design, USBs are almost perfect.
17:58So perfect that you always make the mistake of inserting it in the wrong way.
18:02Admit it, the two square holes are used to help the USB secure its position once it's inside the port.
18:09It's not strong enough to keep it stuck, but strong enough to do its job.
18:14You can protect your USB with proper encryption.
18:17This means that if anyone gets their hands on them, they won't be able to read them.
18:21Encrypted files end up being scrambled into gibberish of a series of letters and numbers
18:26instead of comprehensive words to anyone who tries to read it.
18:30The file is only accessible if someone gets their hands on that USB.
18:34But if you're using certain online services like messaging or emailing, then encryption is simply not enough.
18:41Sure, the person on the other end can't read the contents of the work, but the hosting website can.
18:48This is where end-to-end encryption comes in.
18:51That means any information that goes in and out is, again, scrambled into gibberish to anyone who is in the
18:58way of your traffic,
18:59including the hosting service.
19:01Cloud Storage has taken the world by storm.
19:04You can now save everything that's on your desktop to the internet and access that data across multiple devices.
19:11All you need is an email and password and boom, you're safe and have all your files in one place.
19:18Cloud Storage isn't data floating up in the clouds, but, less excitingly, servers that physically store data.
19:25They're like regular computers, just minus the monitors for viewing.
19:29These servers take up a lot of money.
19:31That's why you normally have to pay for their services.
19:34The servers are placed in data centers all around the world where third-party companies manage them.
19:39It's like getting remote access to a computer.
19:42The servers include a master control server, backup server, and a linked supply of servers operating to maintain a good
19:49quality service.
19:50The more money you pay, the better the server your data will be stored in.
19:56In the realm of computers, you just can't delete something to be gone forever.
20:01Whatever file you want to remove is already present in the hard disk as electrical impulses.
20:07And, depending on your gadget, it will be disposed of in a recycle bin or the garbage.
20:13That isn't to say that it isn't still there.
20:15It simply implies that the file has been moved to a different folder from which you can easily recover it.
20:20So, if you're worried about accidentally deleting a crucial document you've been working on for weeks, don't panic.
20:26It's not gone for good, but if your device breaks, then all your data is lost.
20:32If you own a device that has Windows 10, then you've probably been shutting down thinking that your computer or
20:38laptop is completely off.
20:40This is not the case.
20:41Windows 10 doesn't actually shut down, but goes into a state of hibernation.
20:46It keeps your app saved for you to recover.
20:49The proper way to shut it down is by resetting it.
20:52Windows operating system is known for being user-friendly with all the commands displayed in front of you.
20:58But for computer whiz kids, know that you can open the search bar and type CMD for the command prompt.
21:05It looks just like a bunch of random characters, but this is where you can achieve a lot with your
21:11device.
21:13If you don't like the black window, you can always change the color of your suiting.
21:18Once you launch the command prompt window, right-click on the title bar and then on Properties.
21:23Another window will open which has the option of choosing colors.
21:27You can pick the colors you want for the background and text or fix the opacity for the CMD window.
21:34This is easy mode.
21:36The real work is typing commands in the window.
21:39If you want to look for all your drivers on your Windows 10 device, then type in this command in
21:44the window.
21:45Don't forget to add spaces.
21:47The list of servers will magically pop up on your screen.
21:50This is a good way to get to the bottom of your issue instead of searching for them manually.
21:55You can also hide specific folders on your computer through the command prompt by typing this command and pressing enter.
22:04Of course, you'll have to type in the folder you want to hide and poof, it's gone.
22:09The non-tech way of doing this is by opening the Properties pane in the folder and clicking on the
22:15checkbox that shows Hidden.
22:18While this is indeed the easy way of hiding your folders, it's not the most effective.
22:23You can simply write Show Hidden Files and Folders and every checkbox you check will be visible again.
22:32The command prompt isn't all about business.
22:34You can try playing a game there to pass the time.
22:37Don't expect a AAA kind with realistic graphics and epic gameplay.
22:42Type this command and you'll be transported into the game via text.
22:46This game will allow you to create characters and engage in this imaginary world.
22:53Google Chrome is one of the most popular browsers on the net, but you can also play a text-based
22:58game there, just like in the command prompt.
23:01First press Ctrl plus Shift plus J to open the console.
23:06Then type text adventure into the search box.
23:10Don't freak out, you just opened the sort of a back end of the page.
23:15Next, click on the box that says Console.
23:18You'll be greeted with a text that will ask you if you want to play a game.
23:21Type Yes and you'll instantly begin.
23:25They'll give you some basic commands which are easy to follow and an opening premise of the journey.
23:30If you're looking for something a little more contemporary, then get ready to play some Solitaire.
23:35No worries, you don't have to type some command to play it.
23:38All you need to do is type Solitaire in the search bar and you're there.
23:43You can play the exciting game of Solitaire in your web browser.
23:48And when you get bored, you can play the classic game Pac-Man.
23:52If you're from the generation of the classic bulky phones, then this next game will bring back all those memories
23:58of your childhood.
23:59Open Google and type snake and there you go.
24:04When the internet is down, you can play the dinosaur game in your browser window while you're impatiently waiting for
24:10the Wi-Fi to come back.
24:11This game is very simple.
24:13After pressing Enter, you just have to hit the space bar to jump over obstacles.
24:18And at a certain point, you'll have the option to duck down, which will make it even more challenging.
24:23Even without Wi-Fi, you can still have a good time.
24:26You can pause the game whenever you want by pressing the Alt key or F11.
24:31You can just click on your screen to continue the game at any time.
24:36Windows 11 has some cool hidden features that are very useful, like adjusting the volume for each individual app.
24:43You can go to Settings and click on System.
24:47Hit the Sound section.
24:48This will bring you to all the sound levels and the master switch.
24:53Copy-pasting is so essential to our everyday workflow that Windows 11 decide to take it to a whole other
24:59level with Clipboard History.
25:02This option allows you to save your copied texts in one designated area, which you can access anytime.
25:10And the good news is that this option is also available on Windows 10.
25:14Just click on the Windows key, plus V, and you're good to go.
25:19If you have too many windows opened on Windows 11, you can grab the window that you want to keep
25:24and shake it.
25:25It will minimize all the remaining windows in the background so that you can have a pleasant, productive workflow.
25:31Oh wait, it's happening now!
25:34Most kitchen shears have metal plier-like teeth in the middle, between the handle grips.
25:39They can help you crack nuts, crab shells, and release other tough products.
25:44You can also open jars and bottles, or remove herb stems with their help.
25:49You can keep your cold meals cold, and your food fresh, by making a DIY ice pack.
25:55Take a sponge and fill it with water.
25:58Then put it in a plastic bag, and leave it in the freezer.
26:01Once the sponge is frozen, it'll stay this way for a long time.
26:05Keep in mind that you should use a watertight bag and a fresh sponge.
26:10If you turn over a Tupperware container, you'll see some symbols.
26:14They'll inform you if you can put the container in the dishwasher, if it can be microwaved or frozen.
26:20You may even find out how you can recycle the thing.
26:24Staplers actually have two modes, not just one.
26:28There's a metal plate on the lower part of the device, which helps bend the staples inward after they've pierced
26:34the paper.
26:35What many people don't know is that you can turn this plate around to switch from the staple mode to
26:41the pinning one.
26:42The pinning setting is for temporary fastening.
26:45The staples bend outward, making them easier to remove when necessary, and damaging the paper less, too.
26:53When you take a sip from a coffee cup closed with a lid, the air pressure inside the cup drops.
27:00That's why the air from the outside tries to push into the cup.
27:03The tiny hole on the lid allows some air to enter this way, and the liquid can go out of
27:09the main hole more smoothly.
27:12It's often hard to figure out how much detergent you need to clean your laundry well, but not go overboard.
27:18Pay attention to the cap of your detergent.
27:21It usually has a marker indicating how much product you need to add to your laundry.
27:26Or there might be an instruction on the bottle.
27:29It'll let you know how to measure the detergent.
27:32You can use most screwdrivers together with a wrench to create more torque.
27:37Just place the wrench over the handle of the screwdriver.
27:40This way, you'll need to apply a lot less force than before.
27:44You'll also be able to get to hard-to-reach areas more easily.
27:48The hole in a ruler can be useful if you want to hang the device on a hook.
27:53You can also place a pencil tip in this hole if you need to draw a perfect circle.
28:00Coffee stirring sticks have holes in them because those help reduce the resistance from your drink.
28:05This way, they can stir sugar much more effectively.
28:08Such a design also makes these plastic sticks tougher and prevents them from bending in hot water.
28:15And since stirring sticks are partially hollow, less plastic is used during their production.
28:22Some boxes of chocolates have little dents in between the holes for candies.
28:26If you push such a dent, the chocolates surrounding it will pop out of their compartments.
28:32The small bumps on the F and J keys on the keyboard help people find the right keys without looking
28:39down.
28:39It's especially convenient for those who use touch typing.
28:43The rumble strips on the sides of the road are placed there to alert drivers who doze off behind the
28:49wheel.
28:50When their tires move over these strips, the noise and vibration work like an alarm clock.
28:55The black grate on a microwave is called a Faraday shield.
29:01It contains the electromagnetic energy inside the oven and protects the exterior from radiation.
29:07The grate also speeds up the heating process.
29:11Bottles have long necks so that your drink stays cool longer.
29:15Hold the neck, not the bottle itself, and your drink won't warm up.
29:19Dimples on the surface of a golf ball increase its lift and reduce air resistance.
29:25It means that the ball can go further.
29:27The dimples don't have to be spherical.
29:30They can be hexagonal or have any other shape.
29:34There's a tab on the bottom of your rearview mirror.
29:37If you push it back during nighttime driving, the headlights of the car moving behind yours won't be so blinding.
29:43If you're driving during the day, pull the tab forward.
29:47You can peel an orange more effectively if you cut into the peel at the top and bottom first.
29:53Then make a slit on one side and just pull the peel open.
29:59Headrests in cars are detachable.
30:01You can use one to break the windows if you get stuck in your vehicle.
30:05But by smashing the glass, you can easily hurt yourself.
30:08So try sliding one of the prongs in between the window pane and the door.
30:13Then pull the headrest towards yourself.
30:15The window will shatter.
30:17But hey, I'd try the door lock first.
30:21Solo cups used at barbecue parties can help you measure liquids.
30:25The bottom line equals one ounce.
30:28The second line means you've poured five ounces.
30:31And the third line means 12 ounces.
30:34Sneakers were originally invented for basketball players.
30:38And since they needed to lace their shoes in the most comfortable way,
30:41side holes were invented.
30:43Those helped players lace their sneakers in any way they liked.
30:47And they accommodate anyone's foot.
30:50Little buttons on your jeans are called rivets.
30:53They were originally placed there to prevent the seams from ripping.
30:57In the past, mostly miners and other workers wore jeans.
31:01That's why this item of clothing had to be particularly durable.
31:04And even though these days, jeans aren't under such stress,
31:08the tradition of using rivets still remains.
31:12A big toothy spoon comes in handy when you need to pull your spaghetti out of the pot.
31:17And the hole in the middle of this spoon can help you measure portions.
31:21One portion equals as many dry noodles as you can fit into the hole.
31:27Sometimes, pre-rinsing dishes may lead to your dishwasher cleaning them worse than it could.
31:33Special sensors inside modern dishwashers can perceive how dirty your plates are.
31:38And after that, they send a controlled jet of water to wash all that stuff off.
31:43The only thing you're actually supposed to do is remove solid food from your plates
31:48and stack them up properly.
31:50Ribbed ketchup containers that they give you at fast food restaurants can get a bit bigger.
31:55Just pull the ribs outward and your container will house much more sauce.
32:00While using a plunger on a clogged kitchen sink or toilet,
32:04make sure you've got the right tool.
32:06If it has a standard bowl-shaped rubber head,
32:09it's perfect for flat surfaces such as a sink or a tub.
32:13But the one designed for toilet pipes has a narrower head.
32:18The hole near the rim of your bathroom sink is there to prevent overflows.
32:23Thanks to it, all excess water goes into the siphon.
32:26Plus, it helps your sink drain faster.
32:29The hole gives the air gathered in the siphon somewhere to escape.
32:34The hole in a lollipop stick can save your life.
32:37If the stick gets stuck in someone's mouth,
32:40the hole will prevent this person from choking.
32:42But the original reason for it is to simply not let the candy run off the stick.
32:48During production, the liquid treat is poured on top of the stick.
32:52The stick is hollow inside,
32:54so the candy gets inside it from both the top and the side,
32:58through that exact hole.
32:59And when it gets solid,
33:01it keeps perfectly on the plastic tube.
33:05Most padlocks have a tiny hole on the bottom.
33:08It's needed to drain water from the lock and avoid corrosion.
33:11By the way, it's the best place to lubricate a padlock.
33:16Just put a drop of oil there,
33:17and the key will turn much easier.
33:20If you don't see a hole on the bottom,
33:22the lock is supposed to be used inside.
33:25Instead of opening a banana at the stem,
33:28turn it upside down and peel it from the bottom.
33:31It opens much more easily this way.
33:34A utility knife can serve you much longer than you might think.
33:38Look at the blade carefully.
33:39It's made of parallel sections.
33:42Once the knife gets blunt,
33:44you should break off the top section.
33:46You can do it with the help of the cap you'll find at the bottom of the instrument.
33:50In no time, you'll have a sharp blade again.
33:53The stripes on headphone jacks keep the wires insulated from one another.
33:58One stripe means the headset has a mono signal.
34:01Two stripes indicate you'll have stereo sound.
34:04And three stripes means the headset also has a built-in microphone.
34:08You can usually find some silica gel in bags, shoes, and many other things you buy.
34:14This gel absorbs excess moisture.
34:17Don't throw it away.
34:18Every time your shoes get wet, put some packets of silica gel inside them.
34:23It's very convenient to use bread tags to organize your cords.
34:27Just take a bread tag and several cords and clip them together.
34:31You can also write notes on these tags and use them as reminders.
34:37You've probably noticed that train and bus seats are covered in fabrics with weird patterns.
34:43Have any idea why?
34:45Well, they use these patterns to cover any germs and stains on the seats.
34:49The brighter the color and the more patterned it is,
34:52the harder it will be for passengers to notice any stains and get grossed out.
34:57Also, the patterns are usually so ugly
34:59that no one even wants to look at them for long enough to spot any stains.
35:03So, yeah, the pattern is there to make you look away.
35:07And if you look, to make it less noticeable.
35:10No bus will ever have plain white seats.
35:13That's a guarantee.
35:15Just a few more bus-related questions to answer.
35:18Like, why don't buses have seat belts?
35:21Buses are overall way safer than cars because they were designed this way.
35:26The idea behind this is called compartmentalization,
35:30meaning that the seats have high backs that absorb energy.
35:33The seats are also placed close to one another,
35:36so there's less space to move in case of an impact.
35:39Also, on a bus, the passengers sit pretty high off the ground.
35:44And in case of a collision, the force is absorbed by the bus's deck
35:48and not by the people inside.
35:50On top of that, a bus is way heavier than most other vehicles.
35:54And even if there is a collision,
35:56it distributes the force way differently than a regular car.
35:59Due to its weight, a lot of force is absorbed,
36:02and bus passengers don't experience much crush force.
36:05So, small and light buses that can't distribute the force as well
36:09actually do require seat belts.
36:11And we have to remember that buses drive slowly,
36:14which minimizes the risk of an accident overall.
36:17We all know that school buses are yellow, but why?
36:21It's for visibility reasons.
36:23Yellow is one of the most easily recognized colors.
36:26And for a human eye, yellow is even more visible than, say, red.
36:31So, school buses are yellow to make them more distinctive.
36:35Also, yellow is visible in the dark, in fog, and on a rainy day.
36:39Actually, the color of the bus isn't really a true yellow.
36:44It also has a hint of orange.
36:46This shade even has an official name,
36:49National School Bus Glossy Yellow.
36:51By the way, taxi cabs are yellow for the same reason,
36:54to be more visible in any weather conditions.
36:58Also, buses have huge steering wheels,
37:00and I finally learned why.
37:02Buses are bigger than regular cars,
37:05and they're also way heavier.
37:06So, it's harder to turn a bus around,
37:09and way more strength is required to do so
37:11than when you drive a car.
37:13A bigger steering wheel that has a bigger radius
37:15allows the driver to turn the vehicle more easily,
37:18and it requires less force than if the wheel were smaller.
37:22Trucks have big steering wheels for the same reason.
37:24But have you seen those stuffed toys
37:26that some trucks have attached in front of them?
37:29Turns out, it's just a way for truck drivers
37:31to customize their vehicles.
37:33It's like a mascot that speaks about the truck or the driver.
37:37It's also a way to communicate to the world
37:39that the truck driver isn't all scary and tough,
37:42but a soft and harmless person
37:44that you shouldn't be afraid of.
37:45At least, that's how some truck drivers explain it.
37:48In Asia, there's also a belief
37:50that road accidents are caused by ghosts,
37:53and hanging toys are a way to distract the ghosts
37:56from causing harm to the truck.
37:58Ever been on a road trip?
38:00If you're not the driver,
38:01all you have to do is just sit in one place
38:04and do basically nothing for hours.
38:05It doesn't sound like a hard task,
38:07but some people find it terribly exhausting.
38:10And because of this, they resent road trips.
38:13Why do they get so tired?
38:15Well, sitting in a car isn't like sitting in a chair.
38:18The brain doesn't relax.
38:20Instead, it controls everything that's going on,
38:23accounting for movements
38:25and making sure that you maintain the right posture.
38:28Your brain is constantly working,
38:30exchanging bits of information with your muscles.
38:32So, your body is working.
38:34Some people get tired because of this.
38:36If you aren't doing much,
38:38it doesn't mean that your body isn't doing much.
38:41Train rides are way more tolerable
38:43because trains don't stop or change speeds
38:45as often as cars do.
38:46So, the body is more relaxed.
38:48And train trips are way more tolerable
38:50for people who aren't fans of road trips.
38:54Another mystery is why it's way harder
38:56to stand still in the same spot for 30 minutes
38:59in comparison to, for example, walking for 30 minutes.
39:03Again, it sounds like you're not doing anything
39:05when you're standing.
39:06So, why is it so tiring?
39:08Well, standing is a pretty hard task for your body.
39:12When standing, the muscles in your legs work very hard
39:15to support the mass of your whole body.
39:17If you're standing, there are not many muscles working
39:19and only a few of them have to do all the work.
39:22When walking, there are more muscles working
39:25at the same time.
39:26So, it's easier.
39:27Also, when standing, both of your legs
39:30are working without stopping.
39:31But when walking, each of them gets a tiny break
39:34each time you step using the other leg.
39:37Why is it that the same book can have different covers?
39:40There are several reasons for this.
39:42First, the cover may vary because of the target audience.
39:45An addition of a book that is being marketed
39:47to older people is usually different
39:50from the addition aimed at younger people,
39:52with the one for younger people usually being brighter
39:55and cuter.
39:55The cover can also depend on the country
39:58the book is being sold in,
40:00trying to attract as many buyers as possible
40:02based on the tastes of the population.
40:05Next, books vary from edition to edition.
40:08At first, a book is printed in hardcover
40:10in small quantities to see how it'll do on the market.
40:13If the book is a relative success,
40:15there is another edition printed,
40:17often in trade paperback.
40:19The design of the cover is usually updated
40:21with every edition.
40:22Also, if a book has a movie based on it,
40:25there is usually another edition that follows.
40:27This edition will take advantage of the movie
40:30and use a movie scene as the cover,
40:32making it recognizable for people who saw and liked the movie
40:35and encouraging them to buy a copy of the book.
40:39Most books are printed on yellowish paper,
40:41and few have plain white pages.
40:43But why is that?
40:45Unless it's a mass-market paperback edition,
40:47with paper that's the same quality as a newspaper,
40:50meaning bad,
40:51it's done with good quality paper.
40:53Don't let the yellow hue confuse you.
40:55It's usually called cream,
40:57and it's a preference for any book
40:59because it's less tiring on the reader's eyes.
41:02The plain white paper is bleached,
41:04and it reflects a lot of light,
41:06so it can be exhausting to read for a long time.
41:09So, that yellowish paper is the best paper,
41:12and publishers regularly use it.
41:14Another thing about books is those blank pages
41:17they often have at the very end.
41:19Their number depends on the number of pages in the book.
41:22The thing is that books are printed in signature.
41:25A signature is a group of pages
41:27that printers fold together and cut to make a book.
41:30A signature can have a different number of book pages,
41:33with the minimum being four,
41:35and then with other numbers divisible by four.
41:37So, a book that is 300 pages long in total
41:41will fit in perfectly,
41:42and there will be no blank pages left.
41:45But, if a book needs 303 pages,
41:47it'll need an additional signature,
41:49and the extra pages will remain blank,
41:52often marked with the word
41:53notes or with the message
41:55this page is intentionally left blank
41:57to let the reader know
41:58that there's no important information missing.
42:01Ever wondered why most doctors have sloppy handwriting?
42:04No, there's no class in medical colleges
42:06on bad handwriting.
42:08The reason why it's so common
42:09is that doctors are always in a rush,
42:12and they write as fast as possible
42:13to keep their momentum,
42:15so there's no time to care about writing nicely.
42:17Also, keep in mind
42:19that you're not the only person
42:20who they write a prescription for
42:21over the course of a day.
42:23Doctors do a lot of paperwork,
42:25working for 10 hours straight,
42:26and they're just too tired most of the time
42:28to give you a properly written note.
42:30Have you noticed that most songs,
42:32in general,
42:33last somewhere between 3 and 4 minutes?
42:35Well, originally,
42:37songs were being played
42:38on a phonograph record player
42:39from a vinyl record,
42:41which was spinning
42:41at 78 revolutions per minute.
42:44So, the size of the vinyl record
42:46basically determined
42:47the length of the song.
42:48There were two basic record sizes,
42:50a 10-inch one,
42:51which had room for about
42:533 minutes of playtime,
42:54and a 12-inch,
42:55which could fit a 4-minute song.
42:57So, at the beginning
42:59of the 20th century,
43:00if an artist wanted their song played,
43:02they couldn't make it longer than that,
43:04if they wanted to be able to sell a record.
43:06Times have changed,
43:07but still,
43:08most songs are about
43:093 to 4 minutes long.
43:10The initial reason
43:11for sticking to this pattern
43:13was also because of radio.
43:15If a song was too long,
43:16it would either get cut in half,
43:18or some parts would be left off
43:19to make it fit
43:20into the 3 to 5-minute radio standard.
43:22If an artist wanted the song on the radio,
43:25and if they wanted to earn money from it,
43:27they'd do their best
43:28to make a song that fits the standard,
43:30so that the whole piece
43:31could be played without alterations.
43:32Today, even if there are longer songs,
43:35a 3 to 4-minute song
43:37is now a tradition
43:38that artists typically stick to.
43:41Think you're ready to see the world
43:43in a whole new way?
43:45I hope so,
43:46because I'm about to blow your mind.
43:48Have you ever noticed
43:49those plastic lines
43:50along the side of your phone?
43:52They're the oddly space stripes
43:54that seem to have no purpose.
43:56In reality, though,
43:57they're probably
43:58your phone's most important feature,
44:00because without them,
44:02your device would be
44:03little more than
44:03a smart paperweight.
44:05They are antenna lines,
44:07allowing your phone
44:07to remain wireless.
44:10Electromagnetic waves
44:11carrying phone,
44:12Bluetooth,
44:12and Wi-Fi signals
44:13cannot pass through metal,
44:15which makes up
44:16most of the phone's outer case.
44:18And the glass panel up front
44:19also slows those waves down.
44:21It's like there's a bouncer
44:23at the door,
44:24refusing to let most signals
44:25in or out of the phone.
44:26Hey, I've been to that nightclub.
44:28Anyway, that means
44:30no phone calls,
44:31no texts,
44:31and no late-night delivery
44:33when you have nothing
44:34in the fridge
44:34except one egg
44:35and something that might
44:36have once been lasagna.
44:38Those little strips of plastic
44:40allow the same
44:40electromagnetic waves
44:42to come and go
44:42as they please.
44:43This is why
44:44you can call a friend,
44:45order a ride,
44:46or play an online matching game
44:48until 3 in the morning.
44:49Hey, don't you have to
44:51get up early for work?
44:52When you do
44:53finally stumble out of bed,
44:55make sure you're using
44:56this next item correctly
44:57to avoid a potentially
44:59upsetting situation.
45:00The zipper,
45:01originally patented
45:02as the clasp locker
45:04in 1851,
45:05didn't become widely used
45:07until the 1930s.
45:09Now, they're on everything,
45:10from bags to jackets
45:12to jeans.
45:13And they're not perfect.
45:14They get stuck.
45:15They pinch the skin.
45:17And we all know
45:18what happens
45:19if the zipper on our pants
45:20refuses to stay up.
45:21Well, luckily,
45:22this can be avoided.
45:23Most zippers
45:24have a locking mechanism
45:25built right in.
45:26When the zip
45:27is facing down
45:28and flat against the teeth,
45:30the lock is engaged
45:31and the zipper
45:32remains closed.
45:33If only I had known that
45:34back in school.
45:36What about those
45:37metal rivets
45:38most jeans have?
45:39They're more
45:40than a design choice.
45:41They were added
45:42to protect areas
45:43that experience
45:43the most strain,
45:45such as pocket corners
45:46and the base of the fly.
45:47The rivets
45:48hold the fabric together,
45:49even when it's being
45:51stretched and pulled
45:52during work.
45:53And since we're
45:54talking about clothing,
45:54have you ever wondered
45:56about that tiny
45:57fifth pocket
45:57at the front
45:58of your jeans?
45:59Well, first of all,
46:00it isn't really
46:01a fifth pocket.
46:02Originally,
46:03jeans were made
46:04with four pockets,
46:05including that little
46:06one in front.
46:07The fifth pocket
46:07is actually the one
46:09on the back left,
46:10which was only added
46:11to jeans in 1901.
46:13The little pocket,
46:14though,
46:15was important
46:15a long time ago.
46:17Cowboys needed
46:18to keep their pocket
46:19watches safe
46:19while riding
46:20out on the range.
46:21Yeehaw!
46:22That pocket kept
46:23the watches protected
46:24but also handy.
46:25And then,
46:26people became
46:27so used to it
46:28that jeans
46:28just look weird
46:29without one.
46:30Another strange
46:31holdout from
46:32a bygone day
46:33is that stitched
46:34V on the front
46:35of some sweatshirts.
46:36What if I told you
46:37that those exact stitches
46:38hold the whole shirt
46:40together?
46:40Well,
46:41then I would be lying,
46:42and I never do that.
46:44But,
46:45back in the 1940s,
46:46this V
46:47was very useful.
46:48First,
46:49the V-stitch
46:50was initially used
46:51to add a patch
46:51of stretchy rib fabric
46:53to the shirt
46:53so that it could fit
46:55over our big heads
46:56more easily.
46:57Secondly,
46:58these shirts
46:58were specifically
46:59designed for sports,
47:00so the V
47:01included an additional
47:03piece of fabric
47:03to absorb the sweat
47:05that would build up
47:06during a game
47:06or a workout.
47:08As stretchy fabric
47:09became readily available
47:10and better at
47:11handling perspiration,
47:12the V
47:13lost its traditional value.
47:15But,
47:15like the tiny jean pocket,
47:17it has continued
47:18as a decorative feature.
47:19A reminder
47:20of our big-headed ancestors
47:21who apparently
47:22only sweated
47:23just below the chin.
47:25But,
47:25moving on.
47:27One place
47:28you won't find
47:28many people sweating
47:29is the golf course.
47:30You will see
47:31quite a few
47:32fashion disasters,
47:33sure.
47:34But sweat?
47:35Not so much.
47:36Golf was invented
47:37around the 16th century
47:38in Scotland.
47:39Back then,
47:40the ball was
47:41perfectly round
47:41and smooth.
47:42Over time,
47:43the ball would become
47:44dented from use,
47:45and at some point,
47:47golfers discovered
47:48that these imperfections
47:49actually helped
47:50the ball fly farther.
47:52Dimples were added
47:53on purpose
47:53in the 1900s,
47:54when it was found out
47:56that they reduced
47:56the aerodynamic drag
47:58that slowed down
47:59a smoother ball,
48:00and the dimples
48:01made the balls
48:01easier to control.
48:03And no,
48:04not all golf balls
48:05are created equal.
48:06The number of dimples
48:07can range from
48:08300 to 500,
48:10with one company
48:11producing a ball
48:12with over
48:12a thousand little dents.
48:14Wow,
48:14a little overboard,
48:15eh?
48:16Need a quick
48:17refreshing drink
48:18after a round
48:19of golf?
48:19Juice boxes,
48:21created back in 1963,
48:22are very convenient.
48:24But why do they have
48:25these large triangular
48:26flaps on top?
48:28Their lifted flaps
48:29act as hand grips.
48:31This stops you
48:31from accidentally
48:32squeezing a full box
48:34and spilling juice
48:35all over the place,
48:36like onto your favorite
48:37t-shirt or the new couch.
48:39Now,
48:40when you're done golfing,
48:41grab your backpack
48:42with that leather
48:43diamond patch
48:44with two vertical openings.
48:45It's commonly referred
48:46to as a lash tab,
48:48but I much prefer
48:49its other name,
48:50pig snout.
48:51I mean,
48:52it certainly looks like one.
48:53You typically find
48:55these pig snouts
48:55on packs used
48:56by hikers and climbers.
48:58The diamond
48:58is a place to tie
48:59any extra gear
49:00that they need to carry,
49:02like boots,
49:02cooking equipment,
49:03or sleeping bags.
49:04But these lash tabs
49:05are also becoming
49:06more common
49:07on smaller backpacks.
49:08They're a nod
49:09to the past,
49:10but just as useful.
49:11Attach your running shoes
49:12to one next time
49:13you head to the gym,
49:14keeping those stinky things
49:16away from the rest
49:17of your clothes.
49:18Now,
49:19I'm sure
49:19you're a great driver,
49:21but for years,
49:22you've probably
49:23been neglecting
49:24an important safety feature
49:25right in front
49:26of your eyes.
49:27That rear-view mirror
49:28has a small tab
49:29located at the bottom center.
49:31It's high time
49:32you started using it.
49:33When this is flipped forward,
49:35the mirror is in day mode,
49:36providing a strong reflection
49:38of everything
49:38behind the car.
49:39Flipping the tab backward
49:41changes the whole situation
49:43to night mode.
49:44This reduces the brightness
49:45of the headlights behind you,
49:47resulting in a safer drive.
49:49Another cool car tip?
49:51If you're borrowing
49:52from a friend,
49:53using a rental,
49:54or have the memory
49:55of a house plant,
49:56cars feature a handy indicator
49:58to let you know
49:59which side the gas tank is on.
50:01It's a tiny arrow
50:02next to the pump icon
50:03that points either left
50:04or right.
50:05Where the arrow points,
50:07that's where the gas tank
50:08can be found.
50:08And that's one less thing
50:10you have to remember.
50:12Okay,
50:13off to the grocery store.
50:14A regular shopping cart
50:16has a useful feature
50:17you might have been overlooking.
50:18Carts usually include
50:20loops in the metal frame,
50:21often behind the child seat.
50:23As you bag your groceries,
50:25hang the ones
50:26with fragile or squishable items,
50:28like eggs or bread,
50:29on these loops.
50:30Now,
50:31they're out of harm's way
50:32when you toss
50:33that giant watermelon
50:34into the cart.
50:36Later,
50:37when you're unloading
50:38your groceries,
50:39do yourself a favor
50:40and grab that box
50:41of plastic wrap.
50:42You know,
50:43the one that is impossible
50:44to unroll
50:45without the whole tube
50:46coming out
50:47while the plastic wrap
50:48sticks to itself.
50:49Check out either end
50:51of the box
50:51and you'll see small tabs
50:53that you are supposed
50:54to push in.
50:55This helps to hold
50:56the roll in place
50:57so you can easily
50:58pull the plastic wrap out
51:00without all the fuss.
51:01Aluminum foil boxes
51:03also have these tabs.
51:04Now that you can
51:05finally use
51:06that plastic wrap,
51:07try this appealing hack.
51:09Separate that bunch
51:11of bananas
51:11and cover each stem
51:12in some plastic wrap.
51:14The stem releases
51:15a gas called ethylene.
51:17When it reaches
51:18the rest of the banana,
51:19it encourages the fruit
51:20to ripen
51:21and turn black.
51:22If you wrap the stems,
51:24your bananas
51:25will last longer.
51:26And since you're
51:28in your kitchen,
51:28you might as well
51:29warm up that coffee
51:30from this morning.
51:31Just remove
51:32the gross skin
51:33that is formed on top.
51:34Don't eat it!
51:35Of course,
51:36as you open
51:37the microwave,
51:38you'll notice
51:38that the glass
51:39in the door
51:40has a strange
51:40black mesh inside.
51:42This mesh
51:43is designed
51:43to stop any radiation
51:45from passing
51:45through the glass.
51:46Like the electromagnetic
51:48waves we discussed
51:49earlier,
51:50radiation can't
51:51pass through metal.
51:52That mesh
51:52keeps it all
51:53safely inside
51:54to help you
51:55heat up your food.
51:56Thank you, science!
51:58Oh, and about
51:59that cup of coffee.
52:00Did you know
52:01that the handle size
52:02can help you
52:02determine how much
52:04the mug actually holds?
52:05Let your fingers
52:06guide you.
52:07If you can fit
52:08two fingers
52:08into the handle,
52:09then the mug
52:10holds eight ounces
52:11or one measuring cup
52:12of liquid.
52:13Three fingers,
52:14ten ounces,
52:15or one and a quarter cups.
52:17Four fingers,
52:18twelve ounces,
52:18or one and a half cups.
52:20Pretty cool, huh?
52:21one and a half cups.
52:21Nein,
52:22one and a half cups.
52:23One and an отп Jacob
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