- 1 day ago
Many drivers unknowingly make a critical mistake when interacting with their vehicle's controls, affecting fuel efficiency and durability. There's a secret feature linked to a simple button that can significantly enhance your driving experience. Watch this video to learn what to avoid and unlock your car's true potential.
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00:00Here's how you can protect your bank card from potential fraudsters.
00:04Use a marker and cover the last four digits.
00:06You can also use a sticker that's easy to remove and place it over the security code.
00:12Have you had a houseguest that didn't use a coaster?
00:14Get a hairdryer and hold it a couple of inches away from the stain.
00:18Blow it on medium heat for a couple of minutes to evaporate the watermark.
00:22If a faded ring remains, mix equal amounts of vinegar and olive oil in a bowl.
00:26So, wipe it onto the marked area and rub it in until the stain disappears.
00:30Then wipe it off.
00:32Don't waste time scrubbing the burnt stains off the bottom of a pan.
00:36Instead, fill it with water and add three tablespoons of salt.
00:40Let it sit overnight as the salt dissolves the burnt marks.
00:43And in the morning, pour the water out of the pan.
00:45This way, it will be much easier to scrub all that grease off.
00:49Picture this.
00:50You're on vacation and your shirt has become all crinkled inside the luggage.
00:54You need it tonight, but the hotel doesn't have an iron.
00:57Don't panic.
00:58Hang the shirt up in the bathroom.
01:00And while you relax in a hot shower, the heat and moisture will unwrinkle your shirt.
01:04It won't be perfect, but it will get much better without any effort.
01:08The football is on, and it turns out you've run out of standard batteries.
01:12You can use a smaller battery instead that easily fits inside.
01:16Now take some aluminum foil and crunch it up.
01:19Fit it into the gap on the negative or flat end of the battery.
01:22All done.
01:24You can turn on the TV now.
01:26Once your flip-flops crack and the plug easily slips out of the hole,
01:29it's normally a sign that you need a new pair.
01:32But there's a way to extend their mileage.
01:34Push the plug back through the hole, then take a bread clip and attach it to the end.
01:39The clip will provide enough support for the plug to remain in place.
01:43You've received a package and the receipt is taped on.
01:46You've managed to detach it from the box.
01:48But how to separate the tape without ripping the paper?
01:52Hold both ends of the tape apart, and by pulling it slowly,
01:55the tape stretches and separates itself from the paper without tearing it apart.
02:01Ziploc bags are perfect to keep things dry, but it would be great if they were larger.
02:06Take two and turn one of them inside out.
02:09They can now connect and work as one large bag, big enough to protect a keyboard.
02:14There's no need to carry your keys in your hand when you go for a job.
02:18Instead, put them inside your pocket, take a rubber band, then tie it around the pocket from the inside.
02:24This stops the keys from falling out.
02:27You've broken your key in the door.
02:29It's stuck.
02:30Great!
02:31Arranging for a locksmith could cost up to $100.
02:34But for a cheaper and quicker option, try using a hot glue stick.
02:38Heat the end with a lighter, and once it's warm enough to melt, push the glue into the keyhole.
02:43The melted glue will enter the available space, covering part of the key.
02:48Once it cools, it compresses and gains a strong hold of the key's end.
02:52Now, just pull it out.
02:55If you need to siphon liquid through a hose and want to avoid using your mouth,
02:59put one end in the liquid and hold the other upwards with your thumb closing the top.
03:04Now shake up and down.
03:05This jiggle motion pushes liquid upwards, a little each time.
03:09And once it reaches the top, lower the exit point and let gravity do the rest.
03:14You've left your keys locked inside the car.
03:17It's an older model with a roll-down window.
03:19You could get the coat hanger and begin the long process of finding the lock.
03:23Or use duct tape.
03:25Make about 20 2-foot-long strands.
03:27Stick them onto the window, allowing enough room for the tape to grab onto at the bottom.
03:32Then, with a friend, take the ends of the tape, holding them together, and pull downwards.
03:37The force will allow the window to lower enough that you can unlock the door.
03:42While drilling long screws into hardwood, your old drill might not have enough power,
03:47leaving them only halfway in.
03:49Before the drill gives up, get a block of wax and scrape the edges of the screws with it.
03:53The wax works like a lubricant, melting as it gets warm, and providing easy entry for the screw.
04:00You're out camping, but you didn't bring anything to light the barbecue.
04:04Take a small plastic bag that won't leak, fill it up with water, and close it tight, making a round
04:09bubble.
04:10Hold it over where you want to catch the light from the sun.
04:13The bag of water will work like a magnifying glass, starting up the barbecue, just as long as it's a
04:19sunny day.
04:20Missing a corkscrew or a cork breaking halfway?
04:23By using a stove lighter, heat the top of the bottle.
04:26The heat slightly expands the glass, and this forces the cork out the top.
04:31You've superglued your fingers again.
04:33Take some salt and pour it on top of your stuck fingers.
04:36Put your fingers into the water and slowly rub.
04:39The mixture will dissolve the glue and release you in no time.
04:43While hanging up a painting, it can be impossible to find that stubborn nail.
04:48Place a fork upside down and insert it so the nail is in between the middle fork teeth.
04:53The fork has provided a long arm that's separated from the wall, making it easier to slip the string of
04:59the painting over the nail.
05:00Once it's perfectly balanced, simply remove the fork.
05:06You need to put a cake into a container, but taking it out again later by lifting it up from
05:11the inside might ruin the cake.
05:13Put the lid upside down and place the cake on the lid.
05:16The base of the container is now the lid, making it much easier to access, slice by slice.
05:23Pour out water more efficiently from large jugs and bottles by swirling.
05:28This will make the liquid inside spin, creating a vortex.
05:32The vortex allows for the air to flow back into the bottle as the water pours out, much faster than
05:38the glugging alternative.
05:41There's an easier and less messy way to remove eggshells from a boiled egg.
05:45Once fully boiled, crack the shell on both ends by tapping them.
05:49On one end, pinch off the shell.
05:51Use the opened end to blow with your mouth.
05:53The force of air will push the flesh and expand the eggshell, forcing out the egg undamaged.
06:01When the hinges of your laptop break, repairing them can cost up to $300.
06:06A far cheaper fix is to buy a picture frame and tape it to the back of the screen.
06:12You've dropped a small piece of jewelry on the floor, seemingly impossible to find.
06:17Take a stocking and place it over the end of the vacuum hose.
06:20Give the area a good vacuum and check the end periodically.
06:23You will eventually find it sitting at the end.
06:26You've drilled a hole in the wall, but the drill hole is now too wide.
06:31Remove the screw and find an object that is slightly shorter and thinner.
06:35Pieces of plastic, small wires, paper clips, or even toothpicks are perfect.
06:40Place whichever item you find inside the hole.
06:42It's filled the gap enough so the screw will now re-enter securely.
06:46Taking the trash out can put you in a gross scenario of getting bin juice on you.
06:51A great way to avoid this is by placing old papers at the bottom of the bag.
06:55Now, not only does it absorb all the liquids from the food and other sources,
07:00but also helps prevent bad smells from forming within a bin.
07:04Nobody likes mosquitoes, and pesticides are pricey.
07:08A cheap alternative is to take a plastic bottle and cut the top part off from the bottom of the
07:13funnel.
07:14After removing it, turn it upside down and put it inside the bottle.
07:17Mix two cups of warm water with two tablespoons of sugar.
07:21The mosquitoes will be attracted to the formula inside and become trapped.
07:26Now just sit back and relax without getting bitten.
07:32What's hiding inside Coca-Cola cans and regular household batteries?
07:36Why do magnets affect breakfast cereals?
07:39Do crosswalk buttons actually work, or are they just useless decorations?
07:45What does that USB symbol really mean?
07:49I'm not sure I know the answers to these and similar questions,
07:53but I'm eager to learn the truth together with you.
07:55Let's find it out.
07:57Coca-Cola cans have a secret few people know about.
08:01Here's a Coke can.
08:03Let's submerge it in a highly corrosive alkaline solution.
08:06The aluminum dissolves due to a process known as hydrolysis,
08:11and we can see a plastic liner inside the can.
08:13It's made from a polymer or epoxy resin,
08:16and serves as some kind of a protective barrier
08:19between the aluminum walls of the can and the rather acidic soda.
08:24Despite a popular myth,
08:26household batteries don't actually contain liquid,
08:29and if you accidentally cut them open,
08:31no toxic liquid will spill.
08:33Most of them are dry cell batteries,
08:35which are made of electrochemical cells.
08:37Those convert chemical energy into electrical energy.
08:41Larger batteries often house numerous small cells within them, too.
08:46Even Tesla vehicle batteries consist of multiple small cells.
08:49When combined, they easily provide the necessary voltage.
08:55Most toothbrushes have differently colored bristles,
08:58but they aren't just pleasing to the eye.
09:00Those bristles, often blue, have a functional purpose.
09:03They're called toothbrush indicators,
09:06and their colors fade as you use the brush.
09:08The American Dental Association recommends changing your toothbrush at least four times a year.
09:14And by getting paler,
09:15these bristles help you figure out when it's time to replace your toothbrush.
09:20You'll probably agree that there's no better snack than a pack of chips.
09:24Some are flat, others have ridges.
09:26Is it just aesthetics?
09:29Not really.
09:30The main purpose of those lines on some kinds of chips is to help with the distribution of spices and
09:35seasonings.
09:35In other words,
09:36all those substances that make your chips taste like cheese are mostly stored inside the lines.
09:42Plus, the lines make chips crunchier.
09:46Now, this one might be a surprise, but some breakfast cereals are magnetic.
09:51That's because they're often fortified with iron in the form of a fine powder.
09:55Due to the added iron, cereal flakes get attracted to magnets.
09:59All this may sound kind of alarming,
10:01but in reality, the iron content in the flakes is minimal
10:04and doesn't pose any threat to your health.
10:08That clear fluid in gel pens is called the ink follower or stopper fluid.
10:13The gel in such pens contains pigment particles dissolved in a polymer solution.
10:18The main task of the stopper fluid is to be a barrier
10:21to prevent the gel from evaporating or leaking out.
10:24Without this transparent fluid, your gel pen wouldn't function.
10:29The fluid always stays in one position and doesn't get dissolved with the gel.
10:33Neither does it move backwards or flow out of the pen.
10:38Many pedestrian crosswalk buttons, namely in New York, are placebo buttons.
10:43They do literally nothing when you press them.
10:47Originally, they were functional after being introduced in 1964,
10:50but today, most of them don't affect traffic lights,
10:53which are programmed based on the real needs of the traffic flow.
10:57Why do such buttons even exist, then?
10:59It's a simple psychological trick, providing you with an illusion of control.
11:05You might have noticed that movie theater seats are almost always red.
11:10This choice isn't random.
11:12It has strategic importance, which is rooted in visual science.
11:16The thing is, red light has a longer wavelength.
11:19It means that it's the first color to disappear in low light.
11:22It allows the audience to concentrate better on the screen once the movie begins.
11:26Such a design choice enhances the viewing experience by minimizing distractions.
11:32Speed bumps are crucial for pedestrian safety.
11:35But at the same time, they can seriously increase car emissions due to the non-stop acceleration and deceleration they
11:42cause.
11:44To address this issue, some cities, like London, are testing fake speed bumps.
11:49Those are optical illusions painted on the road.
11:52They look raised from a driver's perspective, but in reality, they're flat.
11:57Authorities hope that this approach will slow down drivers without having a negative impact on the environment.
12:04Soda bottles are always filled in such a way that there's some space between the liquid and the cap.
12:10That's because soda contains carbon dioxide.
12:12It's a gas that can expand once the bottle's heated.
12:15If there's no gap in the bottle, it can break because of the pressure building inside.
12:21Also, when you open your drink, the gases go out in the form of bubbles, making the drink overflow.
12:27The gap helps with this problem too.
12:31The USB symbol.
12:33Looking like a trident has always sparked multiple speculations about its origin.
12:38One popular idea is that it represents Neptune's trident and symbolizes power and adaptability.
12:44But there's also a little bit less exciting theory.
12:48A man who claimed to have designed the symbol in the 1980s stated that it was supposed to represent connectivity.
12:54The large circle symbolizes a computer, while the attached shapes, the circle, the triangle, and square, stand for different outputs.
13:04The design of a tennis racket has a specific feature known as the throat.
13:09It's an open space below the head of the racket.
13:12This space isn't just for storing balls, it also improves the racket's aerodynamics by letting air pass through.
13:19It seriously reduces drag during swings.
13:24Speaking of tennis, tennis courts are usually built with a north-south orientation.
13:29It helps minimize the impact of the sun's position during the game,
13:33ensuring that neither player has the sun directly in their eyes.
13:37Look closely at a tram's overhead lines, and you'll see that its contact wires zigzag back and forth instead of
13:44going in a straight line.
13:46That's because all trams have pantographs attached to their roofs.
13:50The upper part of the pantograph is gradually worn down by the overhead wire and eventually needs to be replaced.
13:57To wear it down evenly, the wire is not installed strictly along the tram's path, but in zigzag patterns.
14:05As the tram moves, the pantograph slides along the wire, and it wears down evenly.
14:12Those cone-shaped water cooler cups?
14:15Their shape is intentionally designed to prevent users from setting the cups down.
14:19This allows employees to minimize the risk of spilling water on their desks around various electronic devices.
14:26Plus, less material is used to produce cone-shaped cups, which makes the process less wasteful and more cost-effective.
14:34It also kind of supports sustainability by encouraging people to drink their water quickly and dispose of their cups immediately
14:40after.
14:43Most suitcases have two zipper pulls, and it serves several purposes.
14:48First of all, if one zipper fails, the other can keep the suitcase closed.
14:53Even better, having two zippers allows you to have easier access to small sections of your suitcase without having to
15:00open it entirely.
15:02And finally, when you have two zippers, you can connect them with a padlock for increased security.
15:10Some plastic milk containers have dents on their sides.
15:13These dents serve several purposes.
15:16When milk spoils, it usually causes swelling and high-pressure buildup inside the container.
15:21That's when the dent pops out and doesn't let the jug blow up.
15:25Plus, if you decide to freeze the milk, it will expand like any other fluid.
15:30And then again, the indentation will pop out and prevent the container from breaking inside your freezer.
15:38If you ever had a problem figuring out why fake pockets exist, you need to hear this.
15:44The main reason is that if a clothing item has a specific cut or shape, pockets may spoil it.
15:50They can alter the item's shape either in the warehouse or already on the retail rack.
15:55The solution?
15:57Getting rid of the pockets in key areas.
16:00Plus, fake pockets are obviously cheaper, and they don't get stretched out.
16:06The thermos wasn't actually invented to keep your coffee warm.
16:10It was made by a Scottish scientist who wanted a safe place to keep his chemicals at a stable temperature.
16:16So, he took two bottles, put the smaller one inside the bigger bottle, and vacuumed out the air between them.
16:27You must have noticed those lines on some kinds of chips.
16:30For one thing, they help with the distribution of spices and seasonings.
16:34In other words, all those substances that make your chips taste like cheese are mostly stored inside the lines.
16:42Plus, the lines make chips crunchier.
16:46Some cars have a tiny coffee cup sign on their dashboard.
16:50It's the vehicle's anti-drowsiness mechanism.
16:54There are manufacturers that equip their cars with a drowsiness detection system.
17:00It analyzes the speed, wheel angle, and lane deviations to figure out if it's time for the driver to take
17:06a break.
17:07If it is, the vehicle makes several audio signals, and the coffee cup sign starts to flash.
17:15Some plastic milk containers have dents on their sides.
17:19These dents serve several purposes.
17:22For one thing, when milk spoils, this process usually causes swelling and high-pressure buildup inside the container.
17:30That's when the dent comes in handy.
17:32It pops out and doesn't let the jug blow up.
17:36Plus, if you decide to freeze the milk, it will expand like any other liquid.
17:41And then again, the indentation will pop out and prevent the container from breaking inside your freezer.
17:49You might have wondered why jerry cans have three handles.
17:53It's a clever designer move.
17:55This way, if you carry the container alone, you can use only the central handle to distribute the weight evenly.
18:03But, if your friend wants to help you out, each of you can grab the side handle.
18:10The first jeans had a problem.
18:12Workers and miners, who were the original jeans wearers, put too much pressure on the poor piece of clothing.
18:18As a result, the seams couldn't withstand the stress and tore.
18:24Tiny metal studs were invented to prevent this from happening.
18:29Sticky notes come off relatively easily, because their adhesive is spread out across the paper unevenly, in small blobs.
18:37And only some of these blobs touch the surface of whatever you've stuck the note on.
18:42That's why when you unstick a post-it and attach it to something else, it still works, until all the
18:48glue gets used or covered with dirt.
18:52Soda bottles are always filled in such a way that there's some space between the liquid and the cap.
18:59That's because soda contains carbon dioxide.
19:02It's a gas that can expand once a bottle is heated.
19:06If there's no gap in the bottle, it can break because of the pressure building inside.
19:12Also, when you open your drink, the gases go out in the form of bubbles, and the drink is likely
19:18to overflow.
19:19The gap helps with this problem, too.
19:23Dental floss is super useful for your teeth, but it might be rather hard to operate.
19:28It regularly slips out of your fingers and tangles.
19:32To avoid these problems, tear off a piece of dental floss and tie its two ends together.
19:38It'll be much easier to use and won't hurt your fingers.
19:44Now, about those horizontal lines on plastic bottles.
19:48They help hold bottles up.
19:50Some bottles are produced from soft plastic.
19:54Without the lines, they wouldn't keep their shape.
19:57Instead, they would twist easily or even break.
20:02The soft, round part under a soda bottle cap keeps the carbonation from escaping.
20:08Without it, your pop would go flat in no time, probably even before you buy it.
20:15If you don't have anywhere to put a toothpick after using it,
20:19break off its flat end at the first groove and place it on the table.
20:23Now, you can balance the used portion of your toothpick on the groove part
20:27so that it doesn't have to touch the table.
20:32You can also make a makeshift stand for disposable chopsticks.
20:36They have a sort of lump on one side.
20:39Break that lump off before you split the pair.
20:42Now, when you want to take a sushi break, just place the stick on this stand.
20:49Donuts are shaped like rings because, otherwise, they might get overdone at the edges but uncooked and gooey inside.
20:58With a hole in the center, both the outside and the inside get ready at the same time.
21:05Ever notice that layer of clear fluid in gel pens?
21:09It's called the ink follower or stopper fluid.
21:13The gel in such pens contains pigment particles dissolved in a polymer solution.
21:19The gel should be thick enough to keep the pigment particles suspended
21:23but also thin enough to flow first onto the ball and then the paper.
21:29The main task of the stopper fluid is to be a barrier to prevent the gel from evaporating or leaking
21:35out.
21:36Without this transparent fluid, your gel pen wouldn't function.
21:40The fluid always stays in one position and doesn't get dissolved with the gel.
21:45Neither does it move backward or flow out of the pen.
21:50Some button-down shirts have a button hidden on the back of the collar.
21:55Its main purpose is to prevent the tie from sticking out from under the collar.
22:01As for that locker loop on the back,
22:04you can use it to hang the shirt on a hook to avoid wrinkling it.
22:10Outer rings and zipper sliders, especially when two sliders are used together,
22:14are added so that you can connect them with a lock and keep sticky fingers away.
22:21Most ambulance cars have this word printed on the front of the vehicle.
22:25That's the word ambulance backward.
22:29It's written in reverse so that the driver in front of the ambulance
22:33can see the word properly in their rearview mirror.
22:36Then they can move out of the way and let the ambulance pass.
22:42Escalator brushes serve an important safety purpose.
22:46You might have heard that most accidents happen
22:48after people get their bags or clothes stuck in escalators
22:51because they stand too close to the sides.
22:54But when there are nylon brushes on both sides,
22:58you can't but keep your feet away from the escalator's skirt panels.
23:01The result? No accidents.
23:05The side holes in sneakers are for laces.
23:09Since sneakers were originally invented for basketball players,
23:12this interesting design allowed them to accommodate any player's foot.
23:17They just needed to lace their sneakers in the most comfortable way for them.
23:23The holes in the bottoms of your earphones allow air to circulate up and through the speakers.
23:29It helps to increase low frequencies, making the bass sound deeper.
23:34The quality of the sound also becomes much better.
23:38Ever been stranded with a cup of applesauce, but no spoon at hand?
23:43But each snack pack already has a built-in spoon.
23:47Several twists of the foil lid, and here you go!
23:53Diamond slits on backpacks were originally placed only on traveler bags.
23:58Their purpose was to carry ropes.
24:01These days, you can find such slits on almost every backpack.
24:05Why not use them to carry a bottle of water, an umbrella, or a pair of sneakers?
24:12Highlighters are filled with a special semi-transparent fluorescent ink that can glow in dim light.
24:19Yellow and light green hues are the most popular
24:22because they don't prevent you from seeing the text after black and white photocopying.
24:28Photocopiers perceive yellow and light green marks as almost non-existent and don't print them.
24:35A stop sign has an octagonal shape to help drivers recognize it easily,
24:40even if they see it from the back.
24:42When the signs weren't reflective yet,
24:45this shape prevented drivers from confusing the stop sign with any other night.
24:51The number 57 on a Heinz ketchup bottle has nothing to do with the product label.
24:57The truth is that the place with the numbers is the very sweet spot you should tap to get the
25:03ketchup flowing.
25:04So, stop hitting the bottom of your sauce bottle and hit 57.
25:10Lots of private houses have triangular-shaped roofs
25:14because this allows rain, snow, and fallen leaves to slide off the slope.
25:20If all this stuff piled up on top of your house,
25:22one day, your roof would collapse.
25:27Airplane windows have rounded edges,
25:29and that's a crucial safety measure.
25:31It prevents aircraft accidents.
25:34Weak spots are usually situated in the corners.
25:37If airplane windows were square or rectangular,
25:41each of them would have four potential weak spots.
25:44Under pressure, they would collapse.
25:49Have you ever wondered what these extra holes at the top of your running shoes are for?
25:53They're designed so that you can tie the shoes in multiple different ways.
25:57That's useful when you want to compensate for things,
26:00such as a bad stride or even a damaged toe.
26:04Plus, you can change the look of your shoes the way you prefer.
26:10Many people use a dust jacket of their book as a bookmarker.
26:14No problem with that.
26:15It will save your book from bent page corners.
26:17But the primary purpose of a dust cover
26:20is to keep the book safe from distortions.
26:23For instance, if you spill juice
26:25or drop some of the food on your book while reading it.
26:29The tic-tac dispenser has this little groove on its top,
26:32so you can dispense only one tic-tac at a time.
26:35Even though, let's be honest here, nobody does that.
26:39Most of us just spill a whole bunch at once,
26:41and then we wiggle all those extra tic-tacs back in.
26:46Those rubber bumps you see between the tire treads
26:48are there for your safety.
26:50The raised edges tell you what the minimum height of your tread is.
26:54If the bump and the edges are even,
26:56it's time for you to visit the tire shop as soon as possible.
27:00But if the bumps are well beneath the level of the edges,
27:03you're good to go.
27:06What about that black grating on the microwave window?
27:09It's something called a Faraday shield,
27:11and it's there to prevent microwaves from getting away
27:14and turning the entire room into a Faraday cage.
27:18If the microwaves escape,
27:19your meal won't cook properly either.
27:22So yep, the cage is not there
27:24to make it difficult for you to see your meal while it's cooking.
27:26It's keeping the electromagnetic energy inside.
27:31How about a wrench-compatible screwdriver?
27:34Cover your screwdriver with the end of your wrench
27:36and you can increase its torque.
27:38That's why the head of your screwdriver
27:40is designed the way it is.
27:42When you have odd angles,
27:44you can use this strategy.
27:46You've probably heard those myths,
27:49the blue side of the eraser can erase the pen.
27:52False.
27:52Its purpose is to erase a pencil,
27:54but in case you're writing something on heavier paper.
27:58The blue side can remove smudges you see
28:00after using the pink eraser too.
28:04Have you ever wondered why oranges in supermarkets
28:07mostly come in the red mesh bag?
28:09It's a trick to make this food look more orange
28:12and encourage you to make a purchase.
28:14An extra tip,
28:16don't throw away the mesh bag.
28:17Tie it up so you can have a small pot scrubber
28:20to clean your sink,
28:21kitchen,
28:21appliances,
28:22and dishes.
28:25You can see golf balls don't have a perfectly round shape.
28:29Their surface is covered with many little dimples,
28:32something golf balls didn't always have.
28:34At one point,
28:35experienced golfers started noticing how through time,
28:39older balls with imperfections,
28:41such as nicks and bumps,
28:43could travel further.
28:45Such things create turbulence in the air around the golf ball,
28:48which eventually reduces drag.
28:51So,
28:52manufacturers started producing balls with dimples
28:55so they could go farther and faster.
28:58You might have noticed that sometimes there are ridges in toothpick tops.
29:02It's more hygienic,
29:04because when you break that off,
29:05you can prop the toothpick up on it,
29:07and it won't touch anything.
29:11Another safety feature you'll find,
29:13this time in your car,
29:15is a tab on your rearview mirror.
29:17With it,
29:18you can change the position of the mirror,
29:20so you don't get blinded if there's a car behind you,
29:22with its high beams on.
29:24So,
29:25this little tab,
29:26helps you control the glare of lights coming from behind.
29:28This feature showed up in the 1930s,
29:31but in the early 1970s,
29:33it became a part of standard equipment,
29:35in most trucks and cars.
29:38Do you see that tiny hole on your iPhone,
29:41right next to the rear-facing camera?
29:43It's a microphone,
29:44and it's there so your phone can record sound
29:46as you turn your camera around.
29:51Some cables have a thick cylinder towards the end of the cord.
29:54It's called a ferrite core,
29:56or a choke.
29:58It's a magnetic iron oxide
29:59that stops high-frequency electromagnetic interference.
30:03For example,
30:05you know that annoying static noise you get
30:07if you bring your phone too close to a speaker?
30:09This interrupts your call,
30:11which is why cable cords with big cylinders are pretty useful,
30:14because they prevent these things.
30:18Do you know why nearly all luggage bags and backpacks have two zippers?
30:22It's way more convenient,
30:24and easier to open in that way.
30:25But not just that.
30:27You can also lock these two zippers together
30:29to keep the stuff inside your bags safer.
30:34You know how toilets at public spots like malls
30:37have those big gaps at the bottom?
30:39It's primarily for better circulation of air.
30:42This type of door also makes it easier to clean the toilet
30:45or check if it's occupied if you're standing in line.
30:49Other than that,
30:50if you get stuck there and the lock gets broken,
30:53you still have a way to escape.
30:55You can just crawl out.
30:58Ever notice those plastic end caps on utility knives?
31:02And they also have scales on them,
31:04which indicates you may use them multiple times,
31:07but with sharp edges.
31:10You can separate the blades through these plastic end caps.
31:13Then, you can move the slider
31:15and bring the sharp blade to the front.
31:17If you've ever taken a moment
31:19to examine a regular grocery cart,
31:22especially their fold-out section,
31:24you probably noticed those metal loops jutting out.
31:27They're designed to protect the items
31:29you carry in your cart.
31:31You can use them to hang bags with soft items.
31:35You don't want to accidentally squish
31:37with heavier products, like bread,
31:38or easily breakable things, like eggs.
31:43Many coffee mugs come with curved notches on their bottom.
31:46When you're washing your mugs,
31:48put them against the rack at an angle in your dishwasher.
31:51This way, the water won't pool in there,
31:53so your favorite cup will be completely dry
31:55by the time you take it out of the dishwasher.
31:59If you're a McFlurry fan,
32:01you've probably noticed there's a square hole
32:03in the handle of the spoon.
32:05It's there so you can attach it to the special machine
32:08that mixes the ice cream and your favorite toppings together.
32:11The machine has a bar that slips into this square-shaped spoon
32:15and then thoroughly stirs it.
32:17And you get the spoon so they can minimize the mess
32:20during the process.
32:22Quite neat, wouldn't you say?
32:25A regular milk jug has a dent on one side.
32:29Some might see it as a random design decision,
32:31but a dent has several purposes.
32:34One of them is to get bigger if there's a gas buildup.
32:37This happens when your milk is spoiled.
32:40So you don't even have to try to check this out.
32:43Also, the dent is there so the jug doesn't burst
32:46if you accidentally drop it.
32:47The dent allows the expansion space
32:50that deals with the sudden pressure
32:52that happens when you drop the jug.
32:55Dental floss.
32:57Sure, it's important for your dental health
32:59and it's easy to assume what you do with it.
33:01But dental floss is great in the kitchen as well
33:04because it's a very precise cake slicer,
33:07way better than a regular knife.
33:12Most kitchen shears have a serrated opening
33:14right there at the center
33:16where the blades and handles meet.
33:18It's something you can use to trim difficult herbs
33:20such as rosemary, thyme, or chives.
33:24Because of this opening,
33:25you don't need to pick the leaves off by hand,
33:27but de-stem them in one motion.
33:31The majority of gelatin containers
33:33or single-serving yogurts
33:34come with a tinfoil lid.
33:36And in most cases,
33:38you can use this covering
33:39as a disposable spoon.
33:41Just peel away the covering
33:43and after a couple of simple folds,
33:45you'll have a perfect little spoon
33:46for your midday snack.
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