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Discover the secret features built into your power charger that are often hidden from view. From thermal controls to high-speed charging pins, learn how these design secrets can enhance your device's performance and longevity. Unlock tips to protect your battery and optimize charging efficiency today.
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00:00Sometimes, when you type big text on your phone, it's pretty hard to get the cursor where it needs to
00:05be.
00:05You can control this little thing using your space bar.
00:08Simply hard-press the space bar and now you can move the cursor wherever it needs to go.
00:13Voila!
00:16You can get bite-sized pineapple pieces without using a knife.
00:19At least that's what this viral TikTok tip is promising.
00:23First of all, twist off the top of the pineapple, that part which has green leaves.
00:28It's pretty easy. Just grab it and make several twists.
00:32Then pick the pineapple up and pound it down on the kitchen table.
00:36Repeat the pounding for about five times to make sure you did it sufficiently.
00:41Now you're going to need some arm strength.
00:43Roll the pineapple back and forth while pressing down on it.
00:46The weight is supposed to help separate the core from the fruit.
00:50But beware if your pineapple is very ripe, it might start to release juice.
00:55Now, gently hold the pineapple skin, pull out one of its scales and enjoy your snack.
01:01If you've done everything right, you're supposed to be able to pull out a bite-sized piece that will separate
01:06from the core quickly.
01:09Here's another game-changing tip for your kitchen.
01:11Get a habit of storing the cling wrap in the freezer.
01:14When the wrap is cold, it's less sticky and much easier to unroll and use.
01:20You're welcome.
01:23We usually place these non-slit bathtub mats on the bathtub's surface to prevent falls.
01:28But when you're not using the bathroom, you can stick or hang them on the wall.
01:33This way, the mat will get dry way faster and you'll prevent the accumulation of soap and dirt leftovers on
01:39the bottom of the bathtub or shower.
01:42Gather your shower curtain into a single bundle and tie it into a big knot.
01:47This way, it won't create obstacles when trying to clean the bathtub.
01:53Remember those mysterious stripes on bathroom towels?
01:56It's not just a decoration.
01:58It's a stabilizer strip to help the towel last longer.
02:02Stripes help keep the towels fluffy by limiting the shrinkage every time you wash them.
02:07Therefore, the towel retains its shape, size, and flexibility over time.
02:13They're also handy when you need to dry and clean a narrow and hard-to-reach place where the thick
02:18part doesn't work because it's too fluffy.
02:21For example, the space between your toes or behind your ears.
02:26Also, the stripes help to sort towels by type.
02:30Otherwise, all the towels of the same color and texture would look alike.
02:34You can see the stripes when you fold the towels properly, so it's easier to differentiate.
02:39This way, you can keep all the towels together in a linen closet.
02:43Your family members will never confuse their own towels with someone else's.
02:49Are you sure you know how to use this flat paper box with matches?
02:53You just have to take a match and slide it across the striking surface, right?
02:58Turns out, there's another way.
03:00Put the matchstick head on the striking surface, close the box, and pinch it.
03:05Then, pull the match out with one quick and confident movement, and it should light up.
03:12By the way, when you light up a matchstick or a candle in a dark room, the flames don't have
03:17shadows.
03:18Did you know that?
03:21The circle on the plastic jug of milk can tell you if the milk is good or bad.
03:25So when the circle is inside, take this as a good sign.
03:29And when it pops out, it means that the milk is expired.
03:34Also, the circle helps to keep the jug from blowing up if you drop it.
03:37When it hits the ground or any other surface, the ring will expand to keep the milk inside the plastic.
03:43And if you leave milk in the fridge for too long, it will develop gases.
03:47In this case, the circle will prevent the jug from popping inside the fridge.
03:52When it comes to plastic bags with frozen food, we usually cut off a strip from the top to open
03:58the package.
03:58But you don't have to throw the strip in the trash right away.
04:01You can tie the bag with the remaining food and put it back in the freezer.
04:07Let's say you're driving a car through the night.
04:09Suddenly, some annoying driver behind you with the brights on gets closer and spoils the party.
04:15You can flip this little tab on your rearview mirror and make the bright lights fade away.
04:19In fact, this little mirror that looks flat is a so-called prismatic wedge.
04:25What looks flat is an angled mirror with a wedge of glass.
04:29When you switch the mirror to dim mode, you change the angle of the mirror so it reflects more light.
04:36Here's a cool safety tip when you have to park your car at some risky spot at night.
04:40Pull out the driver's seatbelt, put it through the door handle, and fasten the belt as usual.
04:45This way, you'll ensure that nobody can get in during the night.
04:49Even if they succeed in getting the door unlocked, they still won't be able to come in.
04:55If your car got frozen on a cold winter night and the glass is covered with ice, you can clean
05:00it using the following tip.
05:01You don't need any special cleaning brush.
05:04Just fill a big sealable plastic bag with hot water and wipe the bag over the car to defrost the
05:10ice.
05:11Now, wipe off the remaining water with a rag and you're ready to hit the road.
05:17Everyone knows how to hang a sweater, right?
05:20Well, there's a better way that helps avoid the shoulder pimples that arise when the hanger doesn't fit your clothes
05:25perfectly.
05:26Put your sweater flat on your bed and fold it in half, like this.
05:30Then, place the hanger on the sweater on a diagonal, like this.
05:34Remember that the hanger hook should be under the arm.
05:37Now, grab the arms and fold them across the hanger.
05:41And then, hold the body of the sweater and fold it across in the same manner.
05:46Congratulations! Now you know the perfect way to hang your sweater.
05:51If you're out of staples, you can just turn your stapler over.
05:54And there's a secret little compartment where you can put a whole row of extra staples.
05:58And now you can just conveniently put it into your stapler and go on with your work.
06:05There's a big chance that your oven door is removable.
06:09This way, you can clean it between the glass.
06:11Of course, the mechanism may differ depending on the model.
06:14So, first of all, check the lower corners of the door.
06:17And you'll probably find two screws that will help you lift the door up and then put it back where
06:22it belongs.
06:24Here's a hilarious tip for peeling boiled chicken eggs.
06:28Remove some shells from the top of the egg.
06:31About the size of a small coin.
06:33Then, break up the bottom of the egg.
06:35And now, blow into the top hole as if you're blowing a balloon.
06:40The peeled egg should pop out of the bottom.
06:43Just make sure the eggs are hard-boiled.
06:47If you have a basic electric screwdriver, you can order special brush heads.
06:51Your cleaning routine will never be the same again.
06:54This device will help you quickly and easily clean the dirtiest tiles and gaps between them.
07:00Just spray some bath cleaner and let your screwdriver brush remove all the impurities.
07:05Although this simple tip is very satisfying,
07:08some say that the sound evokes memories of dentists and ultrasonic dental cleaning.
07:19Ever wondered what that little hole at the top of your sink is for?
07:22There can be one, two, or three of them, depending on the design.
07:27These holes may appear under the near rim facing the mirror.
07:30They may face forward if they're between the faucet valves.
07:33The holes are there to prevent an overflow and to allow air in the drain to circulate.
07:39If the hole wasn't there, a basin filled with water would drain slowly
07:43because of the resistance it puts on the air going out of the drain.
07:46Your bathtub also has this hole, but the kitchen sink doesn't.
07:50A bathtub takes longer to fill, so you may get distracted, walk away, and forget you're filling the tub.
07:57So it's kind of more necessary there.
07:59The kitchen sink has overflow protection in the shape of the divider between the two standard basins.
08:05And this divisor rises lower than the rim.
08:10The majority of hiking backpacks have a secret feature that can literally save your life.
08:16If you have one, take a closer look at its chest strap.
08:20You'll see there's a built-in whistle on its buckle.
08:22It's for situations where you're all alone, stuck somewhere while hiking,
08:27or you were in a group but eventually separated from them.
08:30Uh-oh.
08:31Not all backpacks have a whistle, but those modern ones,
08:35designed specifically for mountain biking, hiking, snowboarding, skiing,
08:38and other similar outdoor activities, do.
08:43Now, speaking of backpacks, and I was,
08:46many brands have standard models that come with a patch sewn into the outer part in the shape of a
08:51diamond.
08:52We call this the lash tab, or as some say, pig snouts.
08:57Originally, the manufacturers came up with this feature so people could carry an ice axe during mountaineering.
09:03They made it from leather because they wanted to reduce the possibility of freezing.
09:08Of course, the average backpacker doesn't go on such adventures.
09:11But the patch is still useful because you can hold and immediately access some items like headphones or a bottle
09:18of water,
09:19or tie your hiking shoes and some other essential things so you have more room inside your backpack.
09:27So, why do shopping carts have a grid system instead of being solid?
09:31There could be a couple of reasons for that.
09:34Manufacturers use less metal, so a cart is both lighter and cheaper.
09:38Also, the supermarket staff can see what's in your cart more easily.
09:42It's easier to keep the cart clean this way, too.
09:45Imagine if it was sealed and somebody spilled orange juice or milk inside of it.
09:50It's easier for a cart to drain this way if it's outside in the rain.
09:55Speaking of holes, why do you think laundry baskets often have holes?
10:00It's for the laundry inside to breathe.
10:02If you use it for dirty laundry, it's harder to vent the sealed basket and prevent your laundry from mildewing.
10:09Also, baskets without vents harbor way more static electricity.
10:15Have you noticed there's a funky little loop on your ski glove?
10:19Yup, the one on the finger.
10:21These gloves are specifically made for snowboarding, skiing, or some other alpine uses.
10:26Because of the loops on the finger, you can hang your gloves on the pack using a carabiner.
10:32Face their opening down, and gloves won't fill with any debris or snow while you're hiking or participating in some
10:38other winter activities,
10:40like falling and rolling down the hill, like what I tend to do.
10:44Now, even if you're not a professional alpine climber or something like that,
10:48it can still be good for you to use so-called carabiner clasps.
10:52With them, you can dry the gloves with the fingers upward.
10:55That way, if there's any condensation, it won't pull in the fingers but roll out the bottom.
11:03You know those silica gel packets that come with new bags, shoes, and many other products?
11:08Think twice before you throw them away.
11:10You might want to keep them because they preserve the freshness of your shoes or some other product you got
11:16them with.
11:17These bags are like a drying agent since they drive the moisture out of their surroundings.
11:22You can use them for other things, like, for instance,
11:25when you need to dry out your phone or something else that got water in the wrong place.
11:31Now, when dealing with a stapler, you can accidentally staple pages you didn't really want to put together.
11:37It's not easy to remove them unless you use a simple trick.
11:41Pay attention to the front part of your stapler.
11:44See that metal plate over there? It's called the anvil.
11:48Turn your stapler upside down.
11:50This way, you can spin the wheel to the temporary staple option so it won't be so hard to remove
11:55the pins.
11:56Yup, the anvil is there, so you can adjust the settings for the stapler.
12:02Now, we're so used to toothpaste being multicolored that we mostly don't even wonder why it's so.
12:09Well, back in the 1970s, people became more aware of how important dental hygiene is.
12:15They wanted their toothpaste to do more than simply clean their teeth.
12:19That's why Aquafresh was the first company that came up with a toothpaste that had ingredients for mouthwash, too, which
12:26is the blue stripe.
12:27Later on, they added red, which represents ingredients that help you take care of your gums.
12:35Aluminum foil boxes have a feature we can truly call hidden.
12:39It's not like anyone bothers to take a close look at the side of the box, right?
12:43There are rounded perforations you can punch through with your fingers.
12:47Just press your finger into the resulting hole and hold it.
12:51That's how you secure the cardboard rule while pulling out a foil.
12:57Beanie pom-poms look like a cute, or ugly if you're not a fan, ball on the top of your
13:03hat.
13:03It may not have a specific purpose today, but it hasn't always been a fashion detail.
13:09One of the possible explanations says that beanies are something the Vikings invented
13:14because they were looking for a way to keep their ears warm throughout the long, cold winters.
13:19After some time, they added pom-poms at the top, too.
13:22They were supposed to prevent the seams from coming apart.
13:26Now, I'm guessing the traditional horns were added sometime after that.
13:32You can find a tomato pin cushion for pins and needles in many households.
13:37But check this strawberry dangling from the top.
13:39It's kind of weird, considering this fruit doesn't grow on tomatoes.
13:43But in this context, strawberries are there for needles you're using at the moment
13:48so you don't get lost while searching through a bunch of other needles on a cushion.
13:54Take a look at the cap on top of your toothpaste tube or a cream.
13:58This pointed cone you see inside the cap is helpful when you're opening a new tube
14:03because you can use it to puncture the seal.
14:06Yup, no need to look for something sharp or use your nails.
14:12Is there a pattern of blue and white bristles on your toothbrush?
14:16Sure, it looks a bit more stylish like this, but this feature has an actual purpose.
14:21Manufacturers designed the blue dye to wear off.
14:24This mostly happens at the same time when you're supposed to be getting a new toothbrush.
14:28They recommend doing it every three to four months, but in case you forget, it can be a handy reminder.
14:38Many cars have black dots along the window edges.
14:41It's a cool design, true.
14:43But car manufacturers probably wouldn't spend so much of their money and time
14:47adding something that didn't have a practical use.
14:50These dots are something we call fritz, which are different than fritz, the German guy.
14:55When the temperature in your car reaches extreme fluctuations,
14:59the fritz are there to make sure the rim of the glass doesn't shatter.
15:03Good idea!
15:06Gas cans have a very small second hole.
15:09It's there to prevent some sort of the glug that occurs when air gets sucked into the hole
15:14as you pour the liquid out of it.
15:16Because, when something like this happens, the flow of liquid is not even,
15:20which means more of it will end up all over the floor.
15:24The hole is also there to help vent the gas and prevent the can from bursting in between uses.
15:29And that's a good idea, too.
15:32Hey, have you ever been vibing out in your room,
15:36listening to some of your favorite songs,
15:38admiring the subwoofer of your speaker as it delivers magnificence to your eardrums?
15:43We all have.
15:44But have you ever asked yourself why that same speaker,
15:47along with other speakers across the globe, is almost always black?
15:52Some of you are probably screaming at your screen right now
15:54about your speaker being green, red, or any other color found in the rainbow.
15:59Number one, I said, almost always.
16:02And number two, if you look closely at the gorgeous design of your brightly colored music player,
16:07you'll often find that the speaker beneath it is still colored black.
16:12One possible explanation for this is that the original technology of speakers
16:16had a diaphragm with black particles on it.
16:19So, as soon as a sound is amplified,
16:22it sends a charge through the diaphragm,
16:24and these black particles are driven upwards.
16:26The carbon particles bouncing and touching the upper membrane of the diaphragm
16:30are responsible for creating some of the distinct sounds from our speakers
16:34that we all love so much.
16:37Speaker manufacturers must have gotten tired of their products changing color with prolonged use,
16:42combined with these black particles settling on the upper membrane of the diaphragm.
16:46So, their logical solution was to color most speakers black.
16:52Another more practical belief as to why speakers are mostly colored black
16:56is that it's a hue that easily matches up with many types of decor.
17:01Walls, furniture, and clothes all often look quite well when combined with this color,
17:06which is why it's so prevalent everywhere you go.
17:10Listening to music has repeatedly scored in the top 10 pastimes in the U.S. based on research.
17:15Nowadays, you find sound speakers everywhere.
17:19In your television, laptop, and your phone, you can't escape them.
17:24But let's take a look at how they started off.
17:27Their origins are in radio and telephone technology.
17:30The first form of a speaker was developed by Johann Philipp Reis in 1861.
17:36The German was a self-taught inventor and installed the speaker on his telephone.
17:41It was just about able to reproduce clear tones,
17:44but it could also replicate muffled speech after a few revisions.
17:50Alexander Graham Bell, the inventor of the telephone,
17:54decided to try and produce an improved version of Reis's speaker.
17:58Essentially, Bell and other inventors wanted to make an electrodynamic speaker.
18:02By 1877, it was still yet to exist.
18:06But due to the desire of inventors worldwide to change this,
18:10research confirmed that it was extremely possible to make one.
18:13In particular, the work of Wernher von Siemens,
18:17who came up with the idea of an electromagnetic coil-driven speaker,
18:21was a driving force in arriving at this conclusion.
18:24Why are there magnets in speakers, you might ask?
18:28Every speaker nowadays has an electric current,
18:31something the inventors were discussing would never have taken for granted at any point in their lives.
18:36When this electric current is changing, it produces a magnetic field.
18:41To make the panel of the speaker move,
18:43magnets are used to create an opposing magnetic field which creates vibrations.
18:48These vibrations are the sound we end up hearing.
18:51The bigger the magnet, the louder the speaker will be.
18:55Another inventor by the name of Thomas Edison from the U.S.
18:59had filed a British patent for a system using compressed air for an amplifying mechanism.
19:05The first commercial electric loudspeaker saw the light of day only in 1924.
19:11The sound quality produced by the speaker was good enough for motion pictures.
19:15It took nearly 20 years for the next groundbreaking development in the world of loudspeakers.
19:20This came with the arrival of the duplex driver in 1943.
19:25It offered better clarity and coherence at high volumes, which was important in movie theaters.
19:31Fittingly, it was nicknamed the voice of the theater.
19:34The duplex driver was immediately tested by the Academy of Motion Picture Arts and Sciences
19:39and instantly made its film house industry standard in 1955.
19:45Until now, this loudspeaker design is still used.
19:49Indeed, the film industry does seem to put a lot of effort into its sound.
19:53And so do the theaters we watch them in.
19:56You may have noticed that these buildings often have thick curtains on the walls.
20:00These are soundproof or acoustic curtains, and both are much thicker than regular curtains.
20:06They will either consist of heavier fabrics that are tightly woven or have better quality linings.
20:12This means that these curtains will absorb sound
20:14and reduce the acoustic reflection off the ceiling, windows, and flat walls of the room.
20:20This ultimately creates a much better sonic experience.
20:23The carpet floors are so thick in theaters for the same reason.
20:27It helps to trap sound by providing insulation.
20:30From a practical standpoint,
20:32this carpet is also set up to prevent the sound of footsteps during film screenings.
20:36This concept of trapping sound is also the reason why putting a phone inside a cup
20:42will make the phone's speaker seem louder.
20:45Any speaker sitting or suspended in an open space projects its sound in all directions.
20:50As the speaker vibrates to create sound waves,
20:53an equal amount of energy leaves from both the front and the back.
20:58By placing a speaker in some form of enclosure,
21:01we can redirect some of the energy that comes from the back of the speaker and project it forwards.
21:07By putting the speaker in a cup, you're directing the sound more efficiently.
21:11It travels only one way, making it seem louder than what you'd hear when you take it out of the
21:17cup.
21:18Speaking of phones and speakers,
21:20ever wonder why your mobile device makes your speaker produce a buzzing noise?
21:24This can occur when the two gadgets are near one another
21:28and your mobile is trying to send and receive data.
21:31The transfer of information produces electromagnetic disturbances in the medium around the speakers.
21:37It creates noise in the audio,
21:39and as a result, you can hear the buzzing sound coming from the speaker.
21:43A simple way to protect the amazing vibe your speaker is creating for you
21:47from this irritating buzzing noise
21:50is just to move your phone away from your speaker, or vice versa.
21:54This will eliminate what is officially known as electromagnetic interference.
22:00Research across America shows that, on average,
22:0474% of people own two or more pairs of headphones.
22:0846% of them mention they listen to their headphones for more than two hours per day.
22:13Some choose the headphones by their looks, others by the sound quality.
22:18In either case, finding the right pair is important,
22:21since a lot of people are willing to spend over $100 on it.
22:25Headphones have become a true fashion accessory.
22:28That's why well-known figures are trying to make an impact in the headphone industry
22:33like it's the fashion industry.
22:35Music moguls Dr. Dre and Jimmy Iovine
22:38came up with the idea for the now world-famous Beats by Dre Headphones brand.
22:43They were walking along the Pacific Ocean one day in 2006,
22:47discussing a sneaker deal as they had an offer on the table from a major brand in that arena.
22:53After some discussions, they decided they wanted to do something they were more passionate about
22:58and landed on headphones.
23:00The duo's idea turned into a brand that was purchased by Apple in 2014 for $3 billion.
23:06It was the largest deal in Apple's history,
23:10and Beats by Dre controlled 70% of the headphone market at the time of signing.
23:15The move allowed Apple to take over the headphone space.
23:18The release of their popular wireless AirPods headphones in 2016 was another reason it happened.
23:25But how did these popular wireless headphones that many of us own actually work?
23:30These headphones rely on internal batteries to have enough power to remain wireless.
23:35Most often, they have conveniently built-in rechargeable batteries.
23:40But sometimes, they keep going thanks to standard AA or AAA batteries.
23:45They receive wirelessly transmitted signals from their paired audio sources,
23:50be it your phone or laptop.
23:52These signals are encoded by the source device
23:55and transmitted most commonly via radio frequencies or infrared carriers.
24:00The headphones receive the signal and decode it to audio.
24:03And just like that, it's music to your ears.
24:09Okay, I know it's kind of cold to the touch, especially on a freezing winter's day.
24:14But did you know that brass doorknobs actually serve a purpose apart from looking classy and shiny?
24:18Since it's a copper alloy, brass has antimicrobial properties.
24:22That means it can help get rid of harmful germs and bacteria, sometimes in up to two hours.
24:28In high-traffic areas, that's all the more useful.
24:31But since brass is much costlier than other metals like nickel and steel,
24:35you barely see these types of doorknobs anymore nowadays.
24:39Speaking of lovely multi-purpose items,
24:41most screwdrivers have a tiny little secret of their own.
24:44They can sometimes be slid through a wrench so that they can be used to create more torque when twisting.
24:49Not to mention the uses when it comes to bolts in hard-to-reach places.
24:54There's a reason why buttons on women's shirts are for the left-handed, and it has nothing to do with
24:59fashion.
25:00This practice dates back to the times when chambermaids were helping ladies dress themselves,
25:05and it was easier for them to perform their job with this orientation.
25:09Having the buttons placed as such indicated a sign of wealth,
25:13so it's easy to imagine why the practice carried on, even though most people dress themselves nowadays.
25:19Next time you receive a package in your mail, take a look at your box cutter.
25:24If it features some diagonal lines on the blade, you're in for a little design perk.
25:28Turns out that these are blades that snap off.
25:32Continuously cutting cardboard can dull the sharp edge of the blade.
25:35To help prevent the need to buy a brand new box cutter,
25:38the top segment along the next line can be broken off to reach a new sharp edge.
25:42To do this, check out the small hole at the base of the tool, sometimes called the blade snapper.
25:48The people that first came up with this brilliant invention were engineers,
25:52inspired by the way chocolate bars are segmented.
25:55Hold on a minute, don't throw away the cardboard package just yet.
25:59Most likely, you'll have some silica gel packets somewhere at the bottom of the box.
26:03Since this gel is basically a drying tool, it gathers up the moisture out of its environment,
26:08so you can store these packets for further occasions.
26:11Whether you'll need to dry out your phone or some other electrical object,
26:14you can place them in a container next to the silica gel to reduce the damage.
26:19You don't have to be a mechanic to know when a standard car tire needs replacing,
26:23since they come equipped with a neat indicator.
26:26Take a closer look, and you'll see that treads within the tire are a bunch of rubber notches.
26:32When the treads are evened out with the perpendicular bars,
26:35it's a sign you need to book an appointment with your local car service.
26:38Since most likely, the tires have lost most of their traction and may not be safe for driving any longer.
26:45The upper corners of a car windshield feature textured black dots melted into the glass edges.
26:51This neat add-on isn't there for design purposes.
26:54It's called Frit Glazing,
26:56which means that a special type of ceramic paint is added to the window for protecting its sealant from UV
27:02rays.
27:03It also conceals and creates a coarser surface for the adhesive used to set the window in place.
27:10Whenever you're up for a drive,
27:12check out if there's a small tab under your car's rearview mirror.
27:16Bet you didn't know it's there to help switch the mirror from daytime to nighttime views.
27:22It uses a prismatic glass technology to blur the reflection
27:26and reduce the glare of headlights behind you in traffic.
27:30People came up with these manually tilted mirrors in the 1930s,
27:33but they became standard somewhere in the 1970s.
27:37While you're in the car,
27:38check out the headrests,
27:40as you most likely don't know that they carry a little disguised purpose.
27:44Of course,
27:45they're adjustable to accommodate passengers of any height
27:47so that they get the proper support for their heads and necks.
27:50The hidden feature is that they are detachable
27:53and come with two very solid metal bars.
27:56Should you ever find yourself stuck in a car and need to make a fast getaway?
28:01These bars come in handy to crack out the car windows.
28:04So you're out for a drive and you're suddenly out of gas.
28:08What I'm about to describe sounds more like a meme than an actual situation bound to happen.
28:12But what if you're in such a hurry that you accidentally drive off
28:16with the gas nozzle still in the tank?
28:19Well,
28:19the nozzles have been designed to prevent any hazards from happening,
28:23rest assured.
28:23They feature a breakaway device that will allow the hose to separate when taken out with enough force.
28:30Initially designed in the early 20th century to be worn exclusively by basketball players,
28:36sneakers soon became one of those fashion fundamentals,
28:39similar to jeans and leather jackets.
28:41If you take a closer look at them,
28:43you'll see they have two extra holes on the side,
28:45similar to the shoelace holes.
28:47They're manufactured as such,
28:48not only to provide extra ventilation,
28:51but to allow people to get extra creative with their laces when wearing the shoes.
28:55Admit it,
28:56you've always thought that chopsticks are merged at the end for the sole purpose of keeping them together
29:01until you're ready to dig into your meal.
29:03That may or may not be the whole truth.
29:06Under a more detailed inspection,
29:08the wooden tools feature a square-shaped end.
29:10Chopsticks manufactured like this date back to an old Japanese traditional design,
29:16which can help with breaking the ends easily.
29:18The separated end can then be used as a resting block for the chopsticks
29:22to keep it more sanitized in hopes it can be used again,
29:25since they won't be touching the table or any other surface.
29:29Women's bikes have a special design,
29:32which, surprisingly, has a historical and fashionable purpose.
29:36The lower frame is for the most part meant to make up for the generally shorter height of ladies,
29:41compared to that of the average gentleman.
29:43While that is the case for handlebars and saddles,
29:46the overall frame is lower for an additional purpose.
29:49Way back when women wore long skirts and dresses all day,
29:53every day they needed to make sure their outfits wouldn't get caught in the frame.
29:57That's how we came up with a lower-framed bicycle,
30:00perfectly made for women and their needs at the time.
30:03The fact that toothpastes are multicolored
30:06is not just a nice perk to make dental hygiene more fun.
30:10There's a secret meaning related to each of the colors,
30:12which dates back to the 1970s.
30:15In those days, people grew more and more interested in their oral health care,
30:20and as such, they were looking for products
30:22which could do more than merely clean their teeth.
30:25One company was the pioneer in that regard,
30:28adding mouthwash to its toothpaste, meaning the blue strip.
30:31They later added on the red strip,
30:34meant to feature ingredients which helped with gum care.
30:37Speaking of toothpaste,
30:39check the cap next time you open a new tube.
30:41You may be in for a little surprise.
30:43There's a pointed cone shape inside the cap,
30:46so you can puncture the seal of the toothpaste
30:48without cutting yourself or ruining your manicure.
30:51Not to mention, it's more hygienic
30:53since you won't be able to transfer germs
30:55or other bacteria into the product itself.
30:58On the subject of bathroom countertop items,
31:01toothbrushes come with a neat add-on
31:03hidden in the bristle patterns.
31:05Apart from making the toothbrush look cooler,
31:07they also do come with a practical purpose.
31:10Most toothbrushes come with a pattern of blue bristles
31:13intertwined with white ones.
31:15The blue dye is meant to fade out,
31:17signaling the time when you need to replace your toothbrush.
31:21Dentists say that toothbrushes should be replaced
31:23every three to four months,
31:25but it does serve as a great reminder in case you forget.
31:28Still love playing with Lego?
31:30Don't judge.
31:31Hey, it's a great hobby for all ages.
31:33Notice there's a hole on top of the Lego heads?
31:36Behold, you're looking at a safety feature
31:38that the people at Lego designed to prevent choking hazards.
31:42The most dangerous issue should a person swallow
31:45any of these pieces is the blocking of the airways.
31:48Designing a hole inside the Lego head
31:51helps the air to flow freely through the piece
31:53until it can be removed safely.
31:56We're now used to all sorts of modern light bulbs,
31:59some tubular, some shaped like diamonds,
32:01and some even twisted altogether.
32:04Historically, light bulbs were round
32:06and the initial shape served a purpose in itself.
32:09It was mainly connected to the fact
32:11that glass bulbs were hand-blown,
32:13which gave them the round shape to begin with.
32:15The hidden practical reason was that the light bulb filament
32:18needed to be at the same distance
32:20from every surface of the glass sphere.
32:22The easiest way to achieve this
32:24was to make the glass in the shape of a globe.
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