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Discover the surprising benefits of banana peels! These overlooked skins are packed with potassium and magnesium, essential nutrients for healthy plants. Our latest investigation reveals how a simple fermentation process can transform banana peels into 'Liquid Gold' that boosts your garden yields by 40%. Say goodbye to harsh chemicals and embrace this organic solution that professionals have known for years. Your trash could be your garden's best friend!
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FunTranscript
00:00Think you're ready to see the world in a whole new way?
00:03I hope so, because I'm about to blow your mind.
00:06Have you ever noticed those plastic lines along the side of your phone?
00:10They're the oddly space stripes that seem to have no purpose.
00:14In reality, though, they're probably your phone's most important feature.
00:18Because without them, your device would be little more than a smart paperweight.
00:23They are antenna lines, allowing your phone to remain wireless.
00:28Electromagnetic waves carrying phone, Bluetooth, and Wi-Fi signals cannot pass through metal,
00:33which makes up most of the phone's outer case.
00:36And the glass panel up front also slows those waves down.
00:39It's like there's a bouncer at the door, refusing to let most signals in or out of the phone.
00:44Hey, I've been to that nightclub!
00:46Anyway, that means no phone calls, no text, and no late-night delivery
00:51when you have nothing in the fridge except one egg and something that might have once been lasagna.
00:56Those little strips of plastic allow the same electromagnetic waves to come and go as they please.
01:02This is why you can call a friend, order a ride, or play an online matching game until 3 in
01:07the morning.
01:07Hey, don't you have to get up early for work?
01:10When you do finally stumble out of bed, make sure you're using this next item correctly
01:15to avoid a potentially upsetting situation.
01:18The zipper, originally patented as the clasp locker in 1851, didn't become widely used until the 1930s.
01:27Now, they're on everything, from bags to jackets to jeans.
01:31And they're not perfect.
01:32They get stuck.
01:33They pinch the skin.
01:35And we all know what happens if the zipper on our pants refuses to stay up.
01:39Well, luckily, this can be avoided.
01:41Most zippers have a locking mechanism built right in.
01:44When the zip is facing down and flat against the teeth, the lock is engaged and the zipper remains closed.
01:51If only I had known that back in school.
01:54What about those metal rivets most jeans have?
01:57They're more than a design choice.
01:59They were added to protect areas that experience the most strain, such as pocket corners and the base of the
02:05fly.
02:06The rivets hold the fabric together, even when it's being stretched and pulled during work.
02:10And since we're talking about clothing, have you ever wondered about that tiny fifth pocket at the front of your
02:16jeans?
02:17Well, first of all, it isn't really a fifth pocket.
02:20Originally, jeans were made with four pockets, including that little one in front.
02:25The fifth pocket is actually the one on the back left, which was only added to jeans in 1901.
02:31The little pocket, though, was important a long time ago.
02:35Cowboys needed to keep their pocket watches safe while riding out on the range.
02:39Yeehaw!
02:40That pocket kept the watches protected, but also handy.
02:43And then, people became so used to it that jeans just look weird without one.
02:48Another strange holdout from a bygone day is that stitched V on the front of some sweatshirts.
02:54What if I told you that those exact stitches hold the whole shirt together?
02:58Well, then I would be lying, and I never do that.
03:02But, back in the 1940s, this V was very useful.
03:06First, the V-stitch was initially used to add a patch of stretchy rib fabric to the shirt
03:12so that it could fit over our big heads more easily.
03:15Secondly, these shirts were specifically designed for sports.
03:18So, the V included an additional piece of fabric to absorb the sweat that would build up during a game
03:24or a workout.
03:25As stretchy fabric became readily available and better at handling perspiration, the V lost its traditional value.
03:33But, like the tiny jean pocket, it has continued as a decorative feature.
03:37A reminder of our big-headed ancestors who apparently only sweated just below the chin.
03:43But, moving on.
03:45One place you won't find many people sweating is the golf course.
03:48You will see quite a few fashion disasters, sure.
03:52But sweat?
03:53Not so much.
03:54Golf was invented around the 16th century in Scotland.
03:57Back then, the ball was perfectly round and smooth.
04:00Over time, the ball would become dented from use.
04:03And at some point, golfers discovered that these imperfections actually helped the ball fly farther.
04:10Dimples were added on purpose in the 1900s,
04:12when it was found out that they reduced the aerodynamic drag that slowed down a smoother ball.
04:18And the dimples made the balls easier to control.
04:21And no, not all golf balls are created equal.
04:25The number of dimples can range from 300 to 500,
04:28with one company producing a ball with over a thousand little dents.
04:32Wow, a little overboard, eh?
04:34Need a quick, refreshing drink after a round of golf?
04:37Juice boxes, created back in 1963, are very convenient.
04:42But why do they have these large triangular flaps on top?
04:46Their lifted flaps act as hand grips.
04:49This stops you from accidentally squeezing a full box and spilling juice all over the place,
04:54like onto your favorite t-shirt or the new couch.
04:57Now, when you're done golfing,
04:59grab your backpack with that leather diamond patch with two vertical openings.
05:03It's commonly referred to as a lash tab.
05:06But I much prefer its other name, pig snap.
05:09I mean, it certainly looks like one.
05:12You typically find these pig snouts on pats used by hikers and climbers.
05:16The diamond is a place to tie any extra gear that they need to carry,
05:20like boots, cooking equipment, or sleeping bags.
05:22But these lash tabs are also becoming more common on smaller backpacks.
05:26They're a nod to the past, but just as useful.
05:29Attach your running shoes to one next time you head to the gym,
05:32keeping those stinky things away from the rest of your clothes.
05:35Now, I'm sure you're a great driver.
05:39But for years, you've probably been neglecting an important safety feature right in front of your eyes.
05:45That rear-view mirror has a small tab located at the bottom center.
05:49It's high time you started using it.
05:51When this is flipped forward, the mirror is in day mode,
05:54providing a strong reflection of everything behind the car.
05:57Flipping the tab backward changes the whole situation to night mode.
06:02This reduces the brightness of the headlights behind you, resulting in a safer drive.
06:07Another cool car tip?
06:09If you're borrowing from a friend, using a rental, or have the memory of a houseplant,
06:14cars feature a handy indicator to let you know which side the gas tank is on.
06:18It's a tiny arrow next to the pump icon that points either left or right.
06:23Where the arrow points, that's where the gas tank can be found.
06:27And that's one less thing you have to remember.
06:30Okay, off to the grocery store.
06:32A regular shopping cart has a useful feature you might have been overlooking.
06:36Carts usually include loops in the metal frame, often behind the child seat.
06:41As you bag your groceries, hang the ones with fragile or squishable items, like eggs or bread, on these loops.
06:48Now they're out of harm's way when you toss that giant watermelon into the cart.
06:54Later, when you're unloading your groceries, do yourself a favor and grab that box of plastic wrap.
07:00You know, the one that is impossible to unroll without the whole tube coming out while the plastic wrap sticks
07:06to itself.
07:08Check out either end of the box, and you'll see small tabs that you are supposed to push in.
07:13This helps to hold the roll in place, so you can easily pull the plastic wrap out without all the
07:19fuss.
07:20Aluminum foil boxes also have these tabs.
07:22Now that you can finally use that plastic wrap, try this appealing hack.
07:27Separate that bunch of bananas and cover each stem in some plastic wrap.
07:32The stem releases a gas called ethylene.
07:35When it reaches the rest of the banana, it encourages the fruit to ripen and turn black.
07:40If you wrap the stems, your bananas will last longer.
07:44And since you're in your kitchen, you might as well warm up that coffee from this morning.
07:49Just remove the gross skin that has formed on top.
07:52Don't eat it!
07:53Of course, as you open the microwave, you'll notice that the glass in the door has a strange black mesh
07:59inside.
08:00This mesh is designed to stop any radiation from passing through the glass.
08:05Like the electromagnetic waves we discussed earlier, radiation can't pass through metal.
08:10That mesh keeps it all safely inside to help you heat up your food.
08:14Thank you, science!
08:16Oh, and about that cup of coffee.
08:18Did you know that the handle size can help you determine how much the mug actually holds?
08:23Let your fingers guide you.
08:25If you can fit two fingers into the handle, then the mug holds 8 ounces or 1 measuring cup of
08:30liquid.
08:313 fingers, 10 ounces or 1 1⁄4 cups.
08:354 fingers, 12 ounces or 1 1⁄2 cups.
08:38Pretty cool, huh?
08:41You just spent the entire morning running errands up and down the street,
08:45and you finally stop to treat yourself to a cup of coffee.
08:48You enter the nearest coffee shop, place your order,
08:51and notice that actually you really need to use the bathroom.
08:55It's a regular-looking public one with multiple stalls.
08:58As you pick yours, the one in the middle, you get inside, and your mind starts to wander.
09:04Why on earth do bathroom doors have a half-inch gap between the door and the lock?
09:09And why on earth do they have a huge gap between the door and the floor?
09:13Can we have a drumroll for this moment, please?
09:16Well, my friend, there is not only one specific reason
09:19why public bathroom doors have so many gaps in them, but rather several.
09:24Public toilets are designed to make people spend as little time there as possible.
09:29You aren't supposed to feel comfortable or at home.
09:32So, the design would have to reflect this notion.
09:34Here come the gaps.
09:36In some bathrooms, gaps are so big that users may even feel self-conscious
09:41about doing their business out of preoccupation that the rest of the people standing in line will see them.
09:47Then, there's the matter of pricing.
09:50Making custom doors can be a heavy burden for the people building public toilets.
09:54This would mean understanding exact measurements so that doors would always fit the mold of the stalls it's supposed to
10:00be installed into.
10:01Now, not all the gaps in public bathrooms are necessarily the same size.
10:07They may vary, even if this variation is small and often unnoticeable.
10:12So, these gaps actually help to reduce the margins of errors
10:15and to turn production more cost-effective for the people financing them.
10:20In case a door comes wider or more narrow than it should,
10:24the gap regulates the differences and allows for their installation anyway.
10:28There is also the case of air circulation.
10:31The last thing you want to do in a public bathroom is to trap odors.
10:35So, you need a little space under and between the doors to allow the air to flow.
10:40Finally, the gaps are a big safety measure.
10:43It can always allow for people on the outside to see if someone inside a stall isn't feeling too okay
10:49and maybe need some help.
10:51And what about that extra hole in the upper part of the sink?
10:54It has a name in everything – the overflow hole.
10:58And it's designed to keep the sink from flooding.
11:01So, in case someone forgets and keeps the faucet going for too long,
11:05or the sink gets clogged and water can't drain down from the main drain hole,
11:09the overflow hole comes in to save the day.
11:12Let's say it buys you a little time before you have the entire bathroom floor flooded.
11:17Have you ever noticed how satisfying closing the door of a car can be?
11:21Car manufacturers devote a great deal of time to designing these sounds.
11:26Studies have shown that they create a perceived sense of quality in the buyer.
11:30It all begins with the primary material.
11:33While older cars used to be made with heavier materials,
11:36car doors nowadays are produced with lighter tin,
11:39which can make a rather unpleasant metallic sound once you shut them closed.
11:44So, car companies employ sound engineers to ensure that there is the exact amount of foam,
11:49mats, and tin in a car's composition to make the most comforting sound possible.
11:54And what about those tiny dots on the top of your car's front window?
11:59The pattern of these little black dots minimizes distractions for your eyes.
12:03This black part, also known as frit, normally gets warmer than the clear parts,
12:08which prevents the windshield from deforming.
12:11And no, the tab under your rearview mirror is not made only for the purpose of hanging
12:16fluffy dyes or aromatic-pleasing air fresheners.
12:19It's actually a switch that allows you to adjust the position of the mirror,
12:23depending on the time of day.
12:25Flip it one way, and it's the daytime driving mode.
12:28Flip the other, and you're ready to drive safely during nighttime
12:31as it tones down the glare coming from headlights of the cars behind you.
12:36Next time you head out to the supermarket, make sure to keep this in mind.
12:39In case you don't have a coin to unlock these shopping carts,
12:43there is a well-kept secret that can help you out.
12:46If you have your house keys on you, check for a rounded key head.
12:50If you happen to find one, try using it to unlock the cart.
12:54It should fit perfectly in there, replacing the need to carry coins around.
12:58Because, if we're being honest, who still has them?
13:02Elevators.
13:02If you want to ride them on your terms, and your terms only,
13:05make sure to try something out.
13:07Most elevators have a secret button combination
13:10you can use to skip all the other selected floors
13:12and go directly to the one of your choosing.
13:15This might work out, especially on those days when you've pressed 13.
13:19But you wanted to press 33.
13:22On most elevators, this works once you simultaneously
13:25press the closed door button together with your floor number.
13:28This should help you get to your floor without stopping.
13:31Some elevators require you to double-press the selected floor numbers,
13:35as double-pressing will often cancel the previously made request.
13:39While other elevators require you to hold the open door button
13:43and then double-press the buttons of the floors you'd like to cancel.
13:47Now, to stay out of trouble,
13:48it's best not to cancel the floors of the other people in the elevator.
13:52They won't take it kindly.
13:54Also, keep in mind that there are elevators that might not have this function.
13:58Now, for honey lovers out there,
14:00go ahead and raise your hand.
14:01If your pot of golden honey is crystallized,
14:04know that it is actually a good sign.
14:08Crystallized honey means that it hasn't been pasteurized,
14:11which means better product quality.
14:13With a decrease in temperature,
14:15the natural ingredient of honey,
14:16also known as glucose,
14:18will make it crystallize.
14:20Now, try making the best of it.
14:22To add some texture to your oatmeal or toast,
14:24add a layer of crystallized honey
14:26and enjoy nature's sugar.
14:28And if you don't like crystallized honey,
14:30plop it in the microwave for a minute or two.
14:33Ah, winter and fall.
14:35You know what this means, right?
14:36Sweater weather.
14:38But there's nothing more annoying
14:39than wearing your beautiful wool sweater
14:41and itching yourself all the way through it.
14:44Actually, I can be more annoying than that,
14:47but let's talk about itchy sweaters.
14:48To keep this from happening again,
14:50here's the secret.
14:52Turn your sweater inside out
14:53and soak it in cold water.
14:55Add two or three tablespoons of vinegar
14:58and let it sit for a while.
14:59Then, drain the water.
15:01Now, while the sweater is still wet,
15:03massage a generous amount of hair conditioner
15:06into the fibers of the wool.
15:08After letting it soak in the hair conditioner
15:10for about 30 minutes,
15:11gently press the excess water out of the wool
15:14and leave it to dry flat on a towel.
15:16There you go!
15:18No more itchy sweater.
15:20Any fast food restaurant you go to
15:22will hand out small paper cups
15:24for customers to fill
15:25with their ketchup, mustard, or barbecue sauce.
15:28But if you're eating some chicken nuggets
15:30or trying to dip your burger into the cup,
15:32there's always that bit of sauce
15:34that seems impossible to reach.
15:36Next time, try unfolding the cup.
15:39It'll turn into a small paper plate
15:41and this way, you'll get all the ketchup
15:43you poured in the first place.
15:46Padlocks used in outdoor environments
15:48should be clean and lubricated every three months.
15:51Regular lubrication will help prevent padlocks
15:54from freezing in cold weather conditions.
15:56Look for the tiny hole on the bottom of the lock.
15:59Then, pour oil into it,
16:01and there you go!
16:02It opens again.
16:04One thing we often neglect
16:05is a point in an ointment cap.
16:08These pointy surfaces were designed
16:10to help us break the tinfoil protection
16:12of the ointment tube.
16:13You just turn the cap over
16:15and break the ointment seal with its own cap,
16:18and there you go.
16:20After a long day of work,
16:21all you really need to do is a bubble bath.
16:24You turn on the hot water
16:25and let it run for a few minutes.
16:27You might even light a candle
16:29and pour some essential oils into the water.
16:31Then, in comes the liquid soap.
16:34You stir the water
16:35until the entire surface of the tub water
16:37is crammed with bubbles
16:39and make your way in.
16:40The bubbles in a bubble bath
16:42have a fundamental primary function.
16:44Their job is to preserve the water's temperature,
16:47just so you can have warm water for longer.
16:50Do you have sweaty feet?
16:52Weird question, I know.
16:53But if you're one of these people,
16:55here's some good news.
16:57All is not lost.
16:58Try putting a dry teabag inside your shoes
17:01and storing it in a dry place for a while.
17:04The teabags will absorb the humidity
17:06and the smell off the soles of your shoes.
17:09So, here I am thinking,
17:11shouldn't we have learned these things in school?
17:13Well, either way,
17:14if you learned something new today,
17:16make sure to tell us about it in the comments below.
17:26If you ever find yourself stuck in the trunk of your car,
17:29stay calm.
17:30All cars are supposed to be equipped
17:32with an emergency latch
17:33to help open the trunk from the inside
17:36in the unlikely case it happens.
17:38These latches are so well thought out
17:40that they can be opened by people of all ages.
17:43More so,
17:44handles are designed to glow in the dark, too.
17:46You can even pull them with a mouth
17:48if there's not enough wiggle room to use your hands.
17:51Never mind how you ended up in the trunk in the first place.
17:54Moving on.
17:55If you're ever working with needle and thread,
17:58remember,
17:58you don't need to stick the needle
18:00directly into the spool.
18:01You may end up losing the needle altogether.
18:04Not to mention,
18:05you can easily hurt your fingers.
18:07A lot of modern sewing kits these days
18:09come with a designated place
18:11for safeguarding the needles.
18:13It's located at the bottom part of the thread spool.
18:16You'll just need to pull it out.
18:18It's even made to hold
18:19multiple sewing needles at a time.
18:22Disposable ballpoint pens
18:23come with a little secret of their own.
18:26Did you ever notice that in some of them,
18:28there's a small hole in the plastic part?
18:31It's actually a rudimentary ventilation system.
18:34It's supposed to let the ink easily make it to the tip of the pen.
18:38Okay, I know it's in the name,
18:40but you really don't need to shake the seasoning shaker
18:43to get any product out.
18:44Don't believe me?
18:46Hey, you're not the only one.
18:47Go grab your favorite seasoning bottle out of your pantry.
18:50If it has one of those removable plastic caps,
18:54it's perfect for the experiment.
18:56Instead of shaking the bottle,
18:58try holding it from the plastic cap
19:00while it's upside down.
19:01Now, gently twist the bottle from side to side,
19:04and before you know it,
19:06you get some gorgeously flowing seasoning
19:09without having to wiggle the shaker
19:11and make a mess all over the stove.
19:13On the same note,
19:15most salt and pepper shakers
19:17should have ridges on the bottom of the glass portion.
19:19In case you get any seasoning stuck in there,
19:22place the bottom of the salt shaker
19:24against the bottom of the pepper shaker
19:26and wiggle it around
19:27so the ridges click with each other.
19:29The seasoning should easily pour out now
19:32without you having to open the bottle.
19:34In colder weather,
19:36you often have so many clothing layers on you
19:38that you can hardly feel the purse or back straps
19:41on your shoulder anymore.
19:42Not to mention how fast they can slide off.
19:45Some jackets come with a built-in solution for that
19:48in the form of a small tab on the shoulder
19:51with either a hook or a button.
19:53It's meant to be opened and closed comfortably,
19:55so you can keep your purse in place at any time.
20:00You're most likely using it
20:01merely to peel the skin of potatoes,
20:04carrots, or cucumbers.
20:05But you can use your vegetable peeler
20:07for chopping fine strips of onion as well.
20:10Just cut the onion into quarters vertically
20:12and then start slicing.
20:14This might also help out
20:16with those embarrassing onion tears.
20:19Most people miss this one,
20:21but should you ever have a closer look
20:23at your toothpaste tube,
20:24you will surely see some sort of coloring there,
20:27either a dot or a block.
20:29Colors can vary.
20:31They can be black, green, red, or even blue.
20:34These color spots are actually meant
20:36to help the assembly machines
20:37back at the toothpaste factory.
20:39They recognize when and where these machines
20:41need to cut the toothpaste tubes
20:43and proceed to fold them for packaging.
20:46For most types of footwear,
20:48if there's anything that seems a bit out of place,
20:50always know that it's there for a reason.
20:53Most manufacturers don't put extra items
20:55on shoes just for fun.
20:57It would definitely be a waste of time and resources.
21:00For footwear, like boots, for example,
21:03there's often a small loop
21:04at the top back of the shoe.
21:06It's there to help you
21:07when you need to put the shoe on
21:09since you can quickly pull on it.
21:11Plus, you can also hang the shoes somewhere,
21:13most likely to dry,
21:15since most boots are meant to be worn
21:17in the colder weather.
21:18Now, I've been guilty at least once
21:20of overdressing with a bunch of layers
21:23just so I won't need to jam everything
21:25in my check-in bag.
21:26But does it become a problem
21:28when you actually have to get seated?
21:30What do you do with your coat or your jacket?
21:33Well, have a closer look
21:34next time you board a plane
21:36on the seat in front of you.
21:37The hook that keeps the tray table upright
21:40can double as a jacket hook.
21:42As long as you don't need to have any meals
21:44while in the air,
21:45you're good to go.
21:47Now, most mascaras expire within 3-6 months,
21:51I'm told,
21:51depending on the manufacturer.
21:53But you can help speed up that process
21:55if you're not careful enough.
21:58Continuously pumping the mascara wand,
22:00trying to mix in the product,
22:02actually pushes more air into the tube.
22:04This can make it dry much faster
22:06and you evidently won't get
22:08the desired results with it anymore.
22:10There's an easy way to check
22:11if your mascara is still good enough to use.
22:14If you don't hear a popping noise
22:16when you take the brush out,
22:18you may very well need to go
22:19get yourself a new mascara tube.
22:22Now, I know we're living in the era
22:25of Bluetooth-connected devices,
22:26but for better quality sound,
22:29they still recommend using headphones
22:31that connect via audio jacks.
22:33Remember seeing black ridges on those jacks?
22:36They aren't there just to make them fit
22:38when you plug them into your phone or laptop.
22:40Made out of a special insulating material,
22:43these bands are meant to guard the wires
22:45when sound is being transmitted.
22:47Based on the number of bands,
22:49you can figure out which end goes where.
22:51Some empty space under noodles in a cup
22:54doesn't mean the company producing them
22:56wants to cheat you out of a full portion.
22:58No, no.
22:59It's a manner of keeping the noodles intact
23:02during their transportation.
23:03It also helps with the circulation of hot water
23:06that is poured over the products
23:08before you can enjoy them.
23:10The V-shaped neckline was initially designed
23:12to serve a bunch of objectives.
23:14First, as a way of prolonging the life of the garment
23:17that would maintain its shape over the years.
23:19It's also there to fit your head through the shirt
23:22in case it needs some stretching.
23:24This way, it ensures a snugger grip around the neck.
23:27Lastly, it helps absorb sweat
23:29in case you're wearing the shirt while exercising.
23:33Now, it's not necessarily a custom anymore,
23:35but you may have stumbled upon a dinner jacket
23:38with an additional mysterious pocket on the right side.
23:42Turns out, this pocket was used by men
23:44to easily reach their train tickets
23:46since most of them had to travel to work every day.
23:49It helped them keep their jacket buttoned up
23:52but also benefited from the use of a pocket.
23:55Now, it's only added as a decoration
23:57and it doesn't serve an actual purpose anymore.
24:00Speaking of things we don't use these days,
24:03or at least for their initial purpose,
24:05did you know Play-Doh was originally a cleaning product?
24:09In the 1920s, the market was in need of a product
24:12that could help them wipe the wallpapered areas
24:15around coal-burning furnaces.
24:16The recipe for what we now know as Play-Doh
24:20was thus invented.
24:21It was manufactured in white only
24:23and was supposed to clean wallpaper
24:25by being rolled back and forth over the dirt.
24:28It was only later in the 1940s
24:31that new products for cleaning wallpaper were brought up
24:34and Play-Doh was redirected
24:36toward another area of the market.
24:38Now, while I enjoy a nice piece of toast for breakfast,
24:42isn't it pesky to have to clean out the toaster?
24:45Well, not anymore,
24:46since I recently found out that toasters
24:49have a slide or a panel at the bottom
24:52that helps get rid of all those annoying breadcrumbs easily.
24:58Now, there used to be a time
24:59when you could only have access to video games
25:02by inserting cartridges in your console of choice.
25:05These tiny objects gave many doctors a lot of headaches.
25:09People soon started popping up in hospitals
25:12after swallowing small game cartridges.
25:15Especially the younger generation.
25:17Nintendo, the company that manufactures
25:19the majority of these devices,
25:21had to come up with a creative solution
25:23to prevent these accidents.
25:25So, these days,
25:26Nintendo Switch cartridges are purposely coated
25:29with specific chemicals
25:30that can leave a really bad, bitter taste in the mouth.
25:34Not that I'd, you know,
25:35recommend you ever try and taste for yourself.
25:38Hmm.
25:39Okay, I know it's kind of cold to the touch,
25:41especially on a freezing winter's day.
25:43But did you know that brass doorknobs
25:45actually serve a purpose
25:46apart from looking classy and shiny?
25:48Since it's a copper alloy,
25:50brass has antimicrobial properties.
25:52That means it can help get rid of harmful germs
25:54and bacteria,
25:55sometimes in up to two hours.
25:58In high traffic areas,
25:59that's all the more useful.
26:01But since brass is much costier
26:02than other metals like nickel and steel,
26:04you barely see these types of doorknobs
26:07anymore nowadays.
26:08Speaking of lovely multi-purpose items,
26:11most screwdrivers have a tiny little secret of their own.
26:13They can sometimes be slid through a wrench
26:16so that they can be used
26:17to create more torque when twisting,
26:19not to mention the uses
26:20when it comes to bolts in hard-to-reach places.
26:24There's a reason why buttons on women's shirts
26:26are for the left-handed,
26:27and it has nothing to do with fashion.
26:30This practice dates back to the times
26:32when chambermaids were helping ladies dress themselves,
26:34and it was easier for them to perform their job
26:37with this orientation.
26:39Having the buttons placed as such
26:41indicated a sign of wealth,
26:43so it's easy to imagine why the practice carried on,
26:46even though most people dress themselves nowadays.
26:49Next time you receive a package in your mail,
26:51take a look at your box cutter.
26:53If it features some diagonal lines on the blade,
26:56you're in for a little design perk.
26:58Turns out that these are blades that snap off.
27:01Continuously cutting cardboard
27:02can dull the sharp edge of the blade.
27:04To help prevent the need to buy a brand new box cutter,
27:07the top segment along the next line
27:09can be broken off to reach a new sharp edge.
27:12To do this,
27:13check out the small hole at the base of the tool,
27:16sometimes called the blade snapper.
27:18The people that first came up
27:20with this brilliant invention
27:21were engineers inspired by the way
27:23chocolate bars are segmented.
27:25Hold on a minute.
27:26Don't throw away the cardboard package just yet.
27:28Most likely, you'll have some silica gel packets
27:30somewhere at the bottom of the box.
27:32Since this gel is basically a drying tool,
27:35it gathers up the moisture out of its environment,
27:37so you can store these packets for further occasions.
27:40Whether you'll need to dry out your phone
27:42or some other electrical object,
27:44you can place them in a container
27:46next to the silica gel to reduce the damage.
27:49You don't have to be a mechanic
27:50to know when a standard car tire needs replacing,
27:53since they come equipped with a neat indicator.
27:56Take a closer look,
27:57and you'll see that treads within the tire
27:59are a bunch of rubber notches.
28:01When the treads are evened out
28:03with the perpendicular bars,
28:04it's a sign you need to book an appointment
28:06with your local car service,
28:08since most likely the tires have lost
28:10most of their traction
28:11and may not be safe for driving any longer.
28:14The upper corners of a car windshield
28:16feature textured black dots
28:18melted into the glass edges.
28:20This neat add-on isn't there for design purposes.
28:23It's called Frit Glazing,
28:25which means that a special type of ceramic paint
28:28is added to the window
28:30for protecting its sealant from UV rays.
28:33It also conceals and creates a coarser surface
28:36for the adhesive used to set the window in place.
28:40Whenever you're up for a drive,
28:42check out if there's a small tab
28:44under your car's rearview mirror.
28:46Bet you didn't know it's there
28:47to help switch the mirror
28:49from daytime to nighttime views.
28:51It uses a prismatic glass technology
28:54to blur the reflection
28:55and reduce the glare of headlights
28:57behind you in traffic.
28:59People came up with these
29:00manually tilted mirrors in the 1930s,
29:03but they became standard somewhere in the 1970s.
29:06While you're in the car,
29:08check out the headrests,
29:09as you most likely don't know
29:10that they carry a little disguised purpose.
29:13Of course, they're adjustable
29:15to accommodate passengers of any height
29:17so that they get the proper support
29:18for their heads and necks.
29:20The hidden feature is that they are detachable
29:22and come with two very solid metal bars.
29:26Should you ever find yourself stuck in a car
29:28and need to make a fast getaway?
29:30These bars come in handy
29:31to crack out the car windows.
29:34So you're out for a drive
29:35and you're suddenly out of gas.
29:37What I'm about to describe
29:38sounds more like a meme
29:39than an actual situation bound to happen.
29:41But what if you're in such a hurry
29:44that you accidentally drive off
29:46with the gas nozzle still in the tank?
29:48Well, the nozzles have been designed
29:50to prevent any hazards from happening,
29:52rest assured.
29:53They feature a breakaway device
29:55that will allow the hose to separate
29:57when taken out with enough force.
29:59Initially designed in the early 20th century
30:02to be worn exclusively by basketball players,
30:05sneakers soon became one of those fashion fundamentals,
30:08similar to jeans and leather jackets.
30:10If you take a closer look at them,
30:12you'll see they have two extra holes on the side,
30:14similar to the shoelace holes.
30:16They're manufactured as such
30:18not only to provide extra ventilation,
30:20but to allow people to get extra creative
30:22with their laces when wearing the shoes.
30:25Admit it, you've always thought
30:26that chopsticks are merged at the end
30:28for the sole purpose of keeping them together
30:30until you're ready to dig into your meal.
30:32That may or may not be the whole truth.
30:35Under a more detailed inspection,
30:37the wooden tools feature a square-shaped end.
30:40Chopsticks manufactured like this
30:42date back to an old Japanese traditional design,
30:45which can help with breaking the ends easily.
30:48The separated end can then be used
30:50as a resting block for the chopsticks
30:52to keep it more sanitized
30:53in hopes it can be used again,
30:55since they won't be touching the table
30:57or any other surface.
30:59Women's bikes have a special design,
31:01which, surprisingly,
31:02has a historical and fashionable purpose.
31:05The lower frame is for the most part
31:07meant to make up for the generally
31:09shorter height of ladies,
31:10compared to that of the average gentleman.
31:13While that is the case for handlebars and saddles,
31:16the overall frame is lower for an additional purpose.
31:19Way back when women wore long skirts
31:21and dresses all day,
31:22every day they needed to make sure
31:23their outfits wouldn't get caught in the frame.
31:26That's how we came up with a lower-framed bicycle,
31:29perfectly made for women
31:30and their needs at the time.
31:33The fact that toothpastes are multicolored
31:36is not just a nice perk
31:37to make dental hygiene more fun.
31:39There's a secret meaning
31:40related to each of the colors,
31:42which dates back to the 1970s.
31:44In those days,
31:46people grew more and more interested
31:48in their oral health care,
31:49and as such,
31:50they were looking for products
31:52which could do more
31:53than merely clean their teeth.
31:55One company was the pioneer in that regard,
31:58adding mouthwash to its toothpaste,
31:59meaning the blue strip.
32:01They later added on the red strip,
32:03meant to feature ingredients
32:05which helped with gum care.
32:07Speaking of toothpaste,
32:08check the cap next time you open a new tube.
32:10You may be in for a little surprise.
32:13There's a pointed cone shape inside the cap,
32:15so you can puncture the seal of the toothpaste
32:17without cutting yourself
32:19or ruining your manicure.
32:20Not to mention,
32:21it's more hygienic
32:22since you won't be able to transfer germs
32:24or other bacteria
32:25into the product itself.
32:28On the subject of bathroom countertop items,
32:31toothbrushes come with a neat add-on
32:33hidden in the bristle patterns.
32:35Apart from making the toothbrush look cooler,
32:37they also do come with a practical purpose.
32:40Most toothbrushes come with a pattern
32:42of blue bristles
32:43intertwined with white ones.
32:45The blue dye is meant to fade out,
32:47signaling the time when you need
32:48to replace your toothbrush.
32:50Dentists say that toothbrushes
32:52should be replaced
32:53every three to four months,
32:54but it does serve as a great reminder
32:56in case you forget.
32:58Still love playing with Lego?
32:59Don't judge.
33:01Hey, it's a great hobby for all ages.
33:03Notice there's a hole on top of the Lego heads?
33:05Behold, you're looking at a safety feature
33:08that the people at Lego
33:09designed to prevent choking hazards.
33:11The most dangerous issue
33:13should a person swallow any of these pieces
33:15is the blocking of the airways.
33:18Designing a hole inside the Lego head
33:20helps the air to flow freely through the piece
33:23until it can be removed safely.
33:25We're now used to all sorts of modern light bulbs,
33:28some tubular,
33:29some shaped like diamonds,
33:30and some even twisted altogether.
33:33Historically,
33:34light bulbs were round
33:35and the initial shape
33:36served a purpose in itself.
33:38It was mainly connected to the fact
33:40that glass bulbs were hand-blown,
33:42which gave them the round shape to begin with.
33:45The hidden practical reason
33:46was that the light bulb filament
33:48needed to be at the same distance
33:49from every surface of the glass sphere.
33:52The easiest way to achieve this
33:54was to make the glass
33:55in the shape of a globe.
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