- 6 weeks ago
Discover the secret features built into common household items that you use daily. From emergency car functions to clever kitchenware designs, these hidden engineering shortcuts make life easier. Unlock the surprising design secrets around your home and see everyday objects in a new light.
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00:00hey bright siders how many of these things do you really know the meaning of let's see how you go
00:07on the back of most beauty products you'll find a small open jar symbol that's there to show you
00:14the useful lifetime of the item for example 2m means two months 30m is 30 months after opening
00:22i always thought those were for how many uses you get out of the product whoops i don't know how
00:29this one was found out but nintendo switch cartridges have a hidden safety function and it's going to
00:36leave a bad taste in your mouth although non-toxic then a tonium benzoid coats the cartridge in a sour
00:44peppery and bitter substance to prevent people from swallowing them being one of the most bitter
00:51flavors known to humanity it's commonly used to keep people from consuming things they're not meant to
00:57honestly who found this out those different colored bread tags use a color-coded system to show the day
01:06that they were baked on they're usually blue tags for mondays green tags tuesdays red tags thursdays
01:14white tags fridays and yellow tags for saturdays apparently no bread is baked on a sunday german
01:22chocolate cake is one of the most delicious cakes out there but its name has nothing to do with the
01:29country at all names after an american baker named samuel german who made the tasty treat in 1852 all i
01:39know
01:39is that it's delightful and no you can't have a piece sports drinks seem to be the most priced possession
01:46of sports people all those pride colored drinks filled with electrolytes will increase performance
01:53and rehydrate you fast the problem is we're not all athletes your exercise habits the duration and
02:00intensity of your training all come into whether you need that extra boost i guess i'll just stick to water
02:08then that space at the bottom of noodle cups surely has a purpose but what could it be
02:15it's for protecting the noodles using a technique called middle suspension not to give you less
02:22notice how they're rarely broken compared to packets not only less likely to break but it also helps those
02:29tasty noodles soften more evenly and quickly i would have never guessed that i certainly don't miss when
02:37my professor used to write notes in the margin of my notebook little did most of us know that it
02:43wasn't its purpose at all they're an old practice for rat protection rats used to nibble on the paper
02:51of the books so they invented the column so that the writing would be safe if the little animals got
02:58hungry maybe the rats just also had homework and wanted to take some paper home instead
03:04above the inside of car doors you'll usually find a handle its purpose isn't just something to hold
03:10onto when someone drives like a rally car driver these handles are actually very useful to someone with
03:17limited mobility trying to get in and out of the car the driver's door often lacks a handle but one
03:23of the
03:23possible reasons makes sense the steering wheel itself can function as a handle if needed probably
03:30be hard to get in with the limited driver space using a handle anyways have a look at how your
03:37zipper
03:38sits the next time you've put on a pair of pants shirts or skirt if it's in an upward position
03:44you might
03:45be unlucky and have it unzip at a bad time push the little zipper tab downwards and it will automatically
03:53lock no more embarrassing moments for me anymore those rich lines on toothpicks aren't there to make it
04:02fancy they're designed to break off after snapping the tab off you can then replace it as a holder for
04:11your toothpick now it won't touch the table and get all dirty remember to put the pointy inked down on
04:18it
04:19i shouldn't have had to say that but you never know a pencil mistake was easy to fix you just
04:27used the
04:27pink side right with ink though you just turned the eraser around for the blue part but it just seemed
04:34to wreck the paper instead that's because the blue part was also for pencil mistakes it was made for
04:41thicker pages like art pages or for when the softer pink side couldn't get the job done right
04:47the number of pages i destroyed before i found this out is crazy really need that gaming fix but your
04:56internet is down google has you covered instead of panicking press that space bar when you see the
05:03little pixelated dinosaur next to the unable to connect to the internet or no internet display
05:09instead of a web page dodge those obstacles and get a high score this little easter egg has become a
05:15beloved game be careful it's addictive speaking of where's my phone now during the colder months putting
05:24on a beanie is normal to avoid having your head from freezing that fluffy pom-pom on top must be
05:31how
05:31they get rid of all that extra material well you can thank the french sailors for that on top to
05:38stop
05:38them from banging their heads on the low ceiling of the ship a little warning that they were a little
05:44too
05:45close to the roof the design changed into what we know now today and that's how the cute little pom
05:51-poms
05:51ended up on our beanies pay attention to any watch advertisement and you'll notice that the time
05:59displayed should be 10 past 10. apart from looking a little like a smile the brand name of the watch
06:05is
06:05usually directly below the 12 so it draws more attention to it isn't it weird how every clock face
06:12seems to be advertised that way i wish it was the smile reason though the diamond leather patch on backpacks
06:20isn't just a weird decoration it's there to hold your joggers or other items as well backpacks are
06:27made for the outdoors and with so many pockets to hold water bottles pens maps and occasionally a tiny
06:34dog it makes sense to have your muddy joggers on the outside of your bag rather than in it i
06:40prefer
06:41its other name pig snout pouring milk out of a carton can sometimes lead to accidents but there's no need
06:48to cry over spilled milk try this simple trick that will confuse you turn the carton around and pour
06:57that way it may seem weird but you'll actually never get that clogging effect ever again when you try it
07:04we've all done this one pulled some plastic wrap to then have the roll jump out of the box as
07:10well
07:11instead of being frustrated my friends here's something we've all missed
07:16there are little cardboard tabs on the sides that can be pushed into to hold the tube inside making
07:22it easy to glide the film out mind blown elevators have many tricks to them some we can use like
07:31pressing
07:32the floor button twice to turn it off or if you're lucky holding the closed door button and your floor
07:38together to go right there but what about that secret hole that looks like an air hole in the outside
07:45door is it used by spies or secret agents as cool as that would be it's simply a hole for
07:52maintenance
07:52people to open and fix any problems i'd prefer the secret agent to use it but at least we know
08:00what it's
08:01four for now next time you're on a plane look above each window and you'll notice some little triangles
08:08sitting above some of the windows there to show the flight crew the best spots to view the plane's flaps
08:14through the window not because the designer thought triangles were cool sitting between the wings puts
08:22you in the direct center of the plane and offers the smoothest possible ride if you get air sick as
08:28well that's where i'm going to sit on my next flight those escalator brushes are really great at brushing
08:36off any dirt left on your shoes but they're not there for that even though i must say that they
08:43do a good
08:44job at it these bristles are a big safety feature loose clothing shoelaces and bags can get sucked
08:51into the machine when they're too close to the sides the job of the little brushes is to tickle
08:57you or make a loud sound against the fabric this is meant to alert to move away from the edge
09:03and
09:03not see what the inside of the machine looks like i always thought it was a spider crawling on me
09:09so they
09:10obviously do a good job to keep your feet away that's it for today see you next time bright siders
09:16if you have a cat congratulations on living with an adorable little creature
09:21i mean a vicious top carnivore as much as cats like to pretend they're the rulers of the roost
09:27stealing bets from great danes ten times their size and knocking over expensive vases to us they're just
09:33ridiculously funny and precious fluffy kittens so don't tell your cat i told you this but there's
09:38actually something very cute and hilarious on the bottom of its paws if you look at the pads of their
09:44feet
09:44upside down the heel pad looks a lot like a person's nose it's even funnier if you picture the fur
09:50around
09:51the tail pad as a bushy mustache if you look at a map of australia for a long time you
09:57might start
09:57to think the shape reminds you of something what is it try to see it before i tell you
10:04can you put a finger on it picture it like this the two peaks in the north around the gulf
10:09of carpentaria
10:09our ears the western curve is a snout and the eastern curve is a neck the island down below which
10:16is tasmania even has a tag like that on a dog's collar do you see it now yeah australia looks
10:24strangely like an outline of a dog the fedex logo might seem simple at first just the company name
10:31and nothing else but once you've looked closer and spotted a hidden detail it's impossible not to
10:37think that's clever in the negative space between the e and the x there is actually an arrow pointing
10:44to the right the logo's designer said that the arrow could hint at the direction speed and precision
10:51the clever use of the negative space has won the logo several awards it was even included in the list
10:57of
10:5720 designs that defined the modern world it was called one of the happiest accidents in the history
11:03of graphic design because it was in fact an accident the designer said farthest from our minds was the
11:10idea of an arrow it wasn't even noticed until the design firm had developed over 400 versions of the logo
11:17but that's not surprising because it's said that perhaps less than one in five people find the hidden
11:23arrow without it being pointed out to them did you see it before i told you that's not the only
11:29example of an arrow hiding where you might not see it on exit signs there's also a negative space
11:35arrow in between the e and x that's surely a fun little detail you can point out to your friends
11:41next time you see an exit sign at a college or a movie theater but there's actually something more
11:48interesting about these helpful signs have you ever seen the kind of exit signs that are mounted
11:53on clear glass they're very common in office buildings and schools but how could they possibly say
12:00the word exit in the correct direction on both sides even though they're see-through shouldn't one
12:07side be read backward well actually what's happening here is a clever optical illusion it's not clear
12:14glass at all but instead it's a mirror there's an opaque lens between the two sides so you can't
12:20see through to the other side at all the reason why this goes unnoticed is because of where the signs
12:26are usually mounted up high near the ceiling of office buildings there's no chance of catching your
12:32own reflection or something else that would give it away plus the ceiling walls tend to be very monotonous
12:38with tile patterns that look the same on both sides as you move your perspective keeps the
12:43reflection lined up with what you'd expect to see on the other side but next time you see an exit
12:48sign
12:49that appears clear look closer you'll see that the tiles or molding won't line up perfectly giving
12:55away this clever trick of the eye pom-poms on beanies and other hats might just look like fluffy decorations
13:02but they were put there for a smart reason that had nothing to do with looks rumor has it that
13:08french
13:09sailors developed the idea to wear hats with pom-poms so that they wouldn't hurt their heads during bad
13:15weather their ships would rock and jerk suddenly so hitting your head on the low ceilings was a big
13:19issue sewing pom-poms to the tops of their hats was like adding a soft cushion to protect them from
13:25knocks
13:25and bumps have you looked closely at your coins many are ridged along the edges and there's a reason for
13:33this ridge patterns on coins are a relic of the past when precious metal coins would be just as
13:38valuable as metal as they were as currency remember some of them were actually made of silver and gold
13:45that's why some sneaky rogues would shave off the edges of coins and use that metal to mint new coins
13:51after that they would spend the shaved coins as usual so the ridges were added so it would be obvious
13:57that someone had shaved off parts of a coin speaking of coins there's a subtle pattern on english ones
14:04that most people don't pay attention to on the six small coins there are patterns that don't seem to
14:10mean anything but when you lay them out in the right order with the five pence coin in the center
14:15you'll
14:16see the full picture which is one big crest you can also see the whole crest on the pound coin
14:22but it's
14:23much more fun to put the puzzle together yourself isn't it the toblerone chocolate bar originated in
14:29a city called burn in switzerland it's also known as the city of bears which explains why the branding
14:35of the triangular treat is designed with a sneaky secret you'll barely believe that you never noticed
14:41it before the logo at first glance appears to be a simple mountain but it has another image hidden
14:48within it in the negative space there's a bear rearing up on its hind legs now that you see it
14:54you'll notice it every time you reach for the candy bar for your sweet fix on that sugary note there's
15:00another chocolate logo with a detail most people won't spot if you flip a package of hershey's kisses
15:06on its side you'll notice there's a hidden shape of a kiss in between the k and the i the
15:12k was
15:13specifically designed to curve in the same way the chocolates do i bet that you wouldn't have spent a
15:19lot of time looking closely at your screwdriver and wrench but if you have you might have noticed that
15:24the shape of the handle of a screwdriver and the inside of a wrench are often the same and that's
15:30on
15:30purpose a lot of screwdrivers can be easily slid through a wrench so that they can be used to create
15:37more torque if a screw is particularly stubborn this secret design gives you much more force to turn
15:43it this feature is especially helpful at complicated heights and angles if your handy diy friends haven't
15:51already noticed this now is your chance to impress them with your eagle eye okay right now picture
15:58toothpaste in your mind imagine squeezing some out of the tube onto your brush you're picturing it with
16:04blue white and red stripes aren't you those stripes are so common that they're pretty much synonymous
16:10with the concept of toothpaste but the truth is there's no real reason for them in the 1970s the
16:17purpose of brushing your teeth changed a bit cleaning your mouth wasn't the only point anymore people
16:22wanted something in the toothpaste to freshen their breath too the first toothpaste companies answered
16:28the call by adding a blue stripe to their paste to show that it could do both after people began
16:34paying more attention to the health of their gums brands added a third red stripe to show that their
16:40paste had triple action cleaning freshening and plaque control even though solid white toothpaste
16:46offers the same benefits and the different colors aren't necessary companies keep adding stripes to their
16:52paste because it still sells when the founders of baskin robbins who were fittingly named bert baskin
16:59and irv robbins first started in the sweet treats industry each of them opened up his own shop but
17:05being brothers-in-law they quickly decided to join forces and when they did their shop had a unique
17:11selling point they offered 31 flavors this way visitors could theoretically come back each day of the month
17:18and try a new flavor the 31 flavors became an integral part of the company's roots and to this
17:25day there's a hidden reference to it in their logo it's number 31 inside the b and r of the
17:31baskin
17:32robbins logo even with the numbers in a different color the clever design hides this secret so well
17:37that you probably haven't noticed it until now but i understand if you were paying more attention to
17:43your ice cream than the brand's graphic design did you know zippers have locks
17:48or that food containers have been designed to make your life so much easier if only you knew how
17:55to use them properly well get ready to find out the secrets behind everyday items you have certainly
18:01been taking for granted some airplanes have wings with upturned ends but why when a plane is soaring
18:08through the sky air begins to spiral around the tips of the wings this can cause something called drag
18:14this means that the airplane has to work harder to move forward as the drag acts as resistance
18:21the upturned ends or winglets reduce the amount of drag the plane experiences this makes for a smoother
18:27more efficient ride and improves the aircraft's stability many countries around the world have
18:33started to explore wind as a way to generate electricity this involves using large turbines these
18:39giant machines have massive blades which catch the wind this makes them spin generating power that can
18:46be added to the electrical grid you may think those blades have smooth edges like you would find on a
18:52fan but they're not they're actually covered in little pointy teeth called serrations similar to what you
18:58would see on a saw people living near wind turbines will appreciate these serrations they not only reduce
19:05the noise as the blades spin making them much quieter but also reduce how far that noise will travel
19:12now i'll bet you have a blender and i'll also bet you use it incorrectly when making a smoothie for
19:19example do you cram in all those healthy fruits and veggies and then cover them with your preferred
19:25liquid then you turn the device on and it winds struggles and sounds like it might blow a fuse well
19:31you
19:32are supposed to add all the liquids first then you can add the solids the blades don't have to struggle
19:37as much to spin through the liquid this creates a whirlpool effect and the device is able to pull the
19:43solid
19:44food down and blend everything evenly your next movie will have fewer chunks yes you are welcome i know that
19:52with online banking you are handling fewer chats but next time you see one take a close-up look at
19:59the
19:59signature lines on the front and back no closer than that i think you might need to grab a magnifying
20:05glass those lines are really teeny tiny words called micro printing they make it harder for people to
20:13print fake checks this will be indicated on the check with the letters mp often near where the signature
20:19goes the words that make up these lines can be anything from authorized signature to original document
20:26most printers are unable to reproduce the micro printing making it easier to detect a fake check
20:33hand sanitizer is everywhere these days yep nothing gets past me and though it's great at keeping your fingers
20:40free of germs it's actually much more useful than you think some of us had made the mistake of using
20:46a
20:46permanent marker on a whiteboard guess what it doesn't come off but grab your hand sanitizer and it can lift
20:54that
20:54stubborn mark it can also help with cleaning windows sunglasses and mirrors do you have a magic key
21:01fob for your car most fobs are designed to lock and unlock your car doors some even allow you to
21:08start
21:08your car from a distance but there's one feature some fobs have that you would never know unless you read
21:14the manual and who has time for that to see if you have a special fob hold down the unlock
21:21button for a whole
21:22two seconds for some car brands this will open the windows of your car this allows you to access your
21:28car if there's ever an issue with the door locks or to let out hot air on a summer day
21:33you might have
21:35noticed a hole along the side of the shaft or barrel of some ballpoint pens this is designed to handle
21:42pressure the hole ensures that the internal and external pressure is the same which allows the ink to
21:48flow freely into the tip if these pressures were different the ink could become stuck inside making
21:54the pen useless another hole you might see is at the very top of a pen's cap this is a
22:00new development
22:01with companies adding it in 1991 first it helps keep the ink from drying out yay second it ensures that
22:10if
22:10you accidentally swallow it the cap will not completely block your airway you'll still be able to breathe while
22:16seeking help double yay but maybe think about stop putting caps in your mouth in the first place
22:23speaking of holes some shoes are designed with two extra holes or eyelets they're located near the
22:29arch just above the sole of the shoe everyone assumes they're there to help your feet breathe and
22:35keep sweating and the resulting smelliness to a minimum but you're actually supposed to use them
22:41when lacing up they allow you to get a tighter better fit and reduce the chances of spraining your
22:47ankle some people prefer to drink soda from a glass bottle arguing that it tastes better whether or not
22:54this is true the bottle does have a unique design feature that most people completely ignore it's that
23:01long tapered neck he transfers from the hand if you hold the bottle around the thicker body you are
23:07warming the contents inside warm cola no thanks you should be holding on to the long neck instead
23:14this way your drink will stay colder longer hungry who doesn't like some delicious chinese takeout
23:22here's a shocker those sturdy containers the food comes in can actually be turned into plates
23:29first grab the creases on the sides of the packaging slowly pull these apart push the corners
23:35down to flatten the box this is ideal for rice and noodle dishes but not so good for soup another
23:41surprise chinese takeout containers were not invented in china they were created in 1894 by frederick
23:50weeks wilcox a man from chicago he called his creation a paper pail and was inspired by japanese origami
23:58when he designed them as chinese food gained in popularity in america these paper pails were used
24:05for delivery and takeout and eventually became associated with this particular style of cuisine
24:11now when it comes to dessert or breakfast or both actually a popular choice is a donut but people often
24:19wonder about the hole in the center wait another hole you bet although it's hard to know who exactly
24:26invented the hole in a donut some stories give credit to a sailor named hansen gregory it was 1847
24:34and hansen was only 16 years old at the time he was working on a lime trading chip the deep
24:41fried
24:41cakes served on board were nice and crispy on the outside but undercooked and doughy on the inside he
24:48suggested adding a hole in the middle which would allow the batter to cook evenly the modern donut was born
24:54hansen is now my personal hero of course with all that food it'll make doing up your pants a little
25:01harder luckily most zippers now have locks a locking mechanism which often looks like a little pin or
25:09bump was added to help keep the zipper done up when you position the pull tab flat along the teeth
25:15the pin
25:16hooks in place and the zipper can't move when you lift the tab it becomes unlocked and you can easily
25:22open and
25:23close it now why are the letters on the computer keyboard in such random order this feature dates
25:30back to when manual typewriters were used initially the keys were placed in alphabetical order but this
25:36way people were able to type too quickly for the machine to handle levers associated with certain
25:42letters would often get jammed together the qwerty keyboard which is the one we still use today
25:48was designed to slow people down and reduce the chance of hitting two keys that might jam
25:54the qwerty keyboard may no longer be essential but we have become used to it
25:59now feel the f and j keys on your computer each of these has a little bump on it these
26:05are known as
26:06homing bars and the f and j are called position keys they were designed to help you properly place
26:13your hand when typing without having to look down at them this allows for touch typing when you use
26:19your muscle memory to remember where each key was for it to work you have to put your fingers in
26:25a
26:25specific position before starting this means asdf for the left hand and jkl for the right hand this is
26:34especially useful if you have to transcribe something for your job you can read the original
26:39and type it out without slowing down to look at your keyboard even the human body has its own little
26:46secrets hiding in plain sight on your fingers at the base of each nail there's something called a
26:52cuticle many people think it is just a bit of extra skin and they cut or trim it often when
26:59getting a
26:59manicure but the cuticle is there to protect the nail from becoming infected by bacteria or fungus
27:06by removing it you are leaving your fingernails exposed if you really want the look of a longer
27:12nail you can gently push the cuticle back towards the base of the nail it can still do its job
27:18and you
27:19can still get that funky nail art you always wanted look at this emoji many people use it as an
27:26angry
27:26face to show they're mad but originally this emoji was called look of triumph it was supposed to indicate
27:33that a person has succeeded in something now so many people have been using this emoji in a different
27:38way the new meaning is also acceptable many people use these folded hands to beg for something
27:45in reality this is a gesture of forgiveness used by japanese people to some americans it also means a high
27:52five some people think this emoji is blowing a kiss but in reality it's not the kissing emoji looks the
28:00same
28:00but has a little heart near its lips as for this one this emoji is actually whistling this emoji has
28:07many meanings but boredom isn't one of them it stands for either skepticism or irritation but in most cases
28:14it's just a side eye unlike what many people think it's not a face screaming in shock it's a face
28:21screaming in fear it's not a ballerina it's a person making the okay gesture you might have been using
28:29this emoji to show some sass but originally it was meant to be way simpler it was just an information
28:36desk
28:37person you probably use it as the peace sign but initially this emoji was supposed to mean victory
28:44now forget about emojis there are many more things in life that can be done in a more effective way
28:50than people usually do for example eating an apple most people eat this fruit side to side but this way
28:57thirty percent of it gets wasted a much better way is to start from the bottom and work all the
29:02way to
29:03the top spitting the seeds in the process to prevent your taco from breaking and stop the food from falling
29:09down wrap it in a cabbage leaf it'll hold everything in place and you'll enjoy all the parts of your
29:16taco
29:16without wasting any food if you want to have some iced coffee don't put any ice made of water in
29:24your cup
29:24this will make your drink taste watery especially when the ice melts instead freeze some coffee and make
29:31coffee ice cubes use them to make your drink cold instead of stirring a cup of coffee or tea in
29:38a
29:38circular motion use back and forth movements this reduces the number of splashes and the amount of
29:44the beverage that ends up on the table also it looks way more elegant you can easily prevent your juice
29:51from
29:52splashing while you're pouring it into a glass instead of pouring it straight from the opening
29:56flip the juice carton around this way the flow will be much smoother and the juice won't be spilling
30:02all over the place if you want to know how to peel a banana in the most effective way watch
30:08a monkey
30:09you'll notice that the animal peels it not from the top to the bottom but from the bottom to the
30:14top
30:15this way you won't squeeze the fruit there's no need to damage your nails trying to open a pistachio nut
30:22instead just use the shell of another one put it in the little hole and turn it around pink sushi
30:30ginger isn't meant to be used as a topic you're supposed to eat this ginger in between taking bites
30:35of your sushi rolls it'll help you distinguish the unique taste of each of them when eating a pizza
30:42fold its pieces a little bit to create a u-shape this way it'll be easier to munch on it
30:48if you're going
30:50to drink out of a soda can you better use a straw the top part of the can has many
30:55bacteria on it
30:56if you drink your soda by raising the can to your lips they'll get into your mouth also if you
31:01drink
31:02soda without a straw your teeth are more exposed to the sweet drink it leads to a higher risk of
31:07cavities and the appearance of dark stains on your teeth any soda has a hole in its pool cap after
31:15opening the can turn the tab around and put the straw into the hole this way your straw will remain
31:21in place to cut bread more easily turn it upside down and start from the bottom don't neglect washing
31:30your feet thoroughly when taking a shower the foamy water sliding down your legs is not enough
31:36dermatologists say you should scrub your feet every day to prevent the spread of bacteria
31:41another thing most people forget about is washing the back of the neck this body part can sweat a lot
31:47especially if you have long hair that covers it opt for washing your hair before moving to your body
31:53hair conditioner that isn't properly washed off can cause skin problems so first wash your hair apply
32:00the conditioner soap yourself up and then rinse off the conditioner and body wash at the same time
32:06after taking a shower don't leave your loofah sponge lying out there the moisture in the bathroom
32:12makes bacteria on the loofah spread faster take your sponge and let it dry outside also make sure to
32:18wash it in a washing machine once a week try to avoid brushing your teeth right after a meal it
32:25damages
32:26the enamel protective layer covering your teeth in the morning consider brushing your teeth before breakfast
32:32if you want to do it after your meal then first rinse your mouth with water then wait for about
32:3840 minutes
32:38before getting down to brushing your teeth brushing your hair from top to bottom can damage it you should
32:46first gently brush the ends of your hair and slowly work your way up to the top bobby pins are
32:54supposed to
32:54be worn with the wavy side facing down this way they'll hold your hair better some earrings have
33:02transparent plastic pieces attached to the part that fixes the earring to your ear you're supposed to
33:07remove these pieces before putting the accessory on for the first time to open tough plastic packaging
33:14just use a can opener don't store glasses upside down the rim of a glass is its most fragile part
33:23when you put it upside down it carries the weight of the whole glass with time the glass is more
33:29likely to break after cooking many people wait for the food to cool down a bit before putting it in
33:36the fridge but in reality nothing bad will happen either to your food or to the fridge even if you
33:41put a plate with something hot inside it's even better because it's not safe to keep most dishes out of
33:47the fridge for too long instead of cleaning a dirty blender by scrubbing and washing it with
33:53your hands just fill it with water add some soap and press start it'll wash itself perfectly just don't
34:00forget to put the lid on or you'll wash your face too never refill a plastic bottle the material
34:08they're made of contains a dangerous chemical called bpa it leaches into the water and grows harmful
34:14bacteria in the cracks of the bottle it's better to buy a reusable water bottle if you want to cross
34:20out a word so that it's not readable anymore don't use straight lines that'll leave the text visible
34:26instead write some other letter or curls over the word that you want to hide this way it'll be next
34:32to
34:32impossible to figure out what was written there it's better to apply deodorant at night before going
34:38to bed at this time your body is less likely to sweat don't apply it right after the shower though
34:44deodorant works more effectively when applied on dry skin you don't need to keep a pile of printed
34:51manuals that go together with your gadgets just go to the company's website find your product and
34:57download its digital manual to your computer while packing roll your clothes it'll save you a lot of space
35:05if you want to keep your hands clean when eating some extra cheesy snacks or chips try eating them
35:11with chopsticks the best way to freeze ice cream if you want it soft is to put the container in
35:18a
35:19ziploc bag and only after that into the freezer the bag will also prevent your ice cream from absorbing
35:25the freezer smell so grab your phone good now turn it around you see that little dot between
35:34the camera and the flash that's a tiny microphone bet that's something you didn't know what's it
35:40doing there well when you're on a phone call this little guy is busy at work reducing the amount of
35:46background noise other people hear when you talk that's right if it wasn't for this calls wouldn't be
35:53as nearly as crisp as they are now you're lost in the woods and you're rushing to get back to
35:59camp
36:00you suddenly remember you've got something that can help you grab one of your chest straps from
36:06your backpack and whistle on it yup that's right a lot of bags have this feature in them especially
36:13the ones made for the outdoors it isn't long before you hear the call of one of your friends and
36:18you
36:18follow them back to the warm campfire saved by this cool bit of design if you're a curious person you
36:26might have wondered what that little pocket in your jeans is doing there you know the one that's
36:31inside the bigger pocket people often use it to store coins and bills but it's not meant for that
36:38it's actually designed to store your pocket watch safely uh maybe that's where the name pocket watch
36:44comes from you finally arrive home after a long day's work you understandably don't feel like cooking
36:52so you sit on the couch and watch a bit of tv and order some takeout how about chinese ah
36:59perfect
37:00there's the doorbell that has to be your food it smells delicious wait before you grab the plates
37:07do this instead open your chinese food container on the table it becomes the perfect plate and it's
37:14cardboard which means no cleaning either the can of soda you got with your food has a cool feature too
37:22look at the tiny metal tab there the one you use to open the can guess what you can fit
37:28your straw in
37:29there in fact that's exactly what they're made for go ahead try it for yourself if you're not at your
37:37computer take a look at your keyboard right now if you're not that's okay here's one on the screen
37:42the keycaps are arranged in what's called the qwerty layout named after the first six keycaps below
37:49the numbers as it turns out it wasn't always this way they used to be laid out alphabetically which
37:55would make more sense when you think about it the alphabetical layout fell out of use because long ago
38:01there were things called typewriters remember those you press down a key and a type bar would fly out
38:09hitting an inked ribbon and stamping the letter on the piece of paper eventually typists got good at
38:15this and typed faster too fast the type bars would eventually get caught in a log jam with each other
38:21ruining the flow to fix this problem they made keyboards with randomized keycaps the new layout
38:28actually worked better because it made typing harder helping to slow typists down and prevent
38:33the type bars from getting stuck much better today no type bars no typewriters mostly people are still
38:41fast nowadays but you just can't help but wonder who was faster though us or them keyboards have
38:48another hidden feature too have you ever noticed that the f keycap and the j keycap have little bumps
38:54on the bottom of them as it turns out they're there to help people figure out where they are on
38:59the
38:59keyboard without having to take their eyes off the screen grabbing a takeaway cup of coffee at your
39:06favorite cafe might be just what you need to fully wake up in the mornings when you get back home
39:12or to
39:12work though you might be afraid to stain your desk when you put the steaming hot coffee down worry not
39:18your plastic lid isn't only good for keeping your coffee hot it also doubles as a coaster in fact
39:25they're the perfect size to hold a cup try it for yourself this one's going to come in handy if
39:31you're a home cook if you're like me you might have a bit of trouble deciding how much pasta
39:37you need for just one serving well if you've got a pasta scoop grab that most people don't know
39:43what the little hole in the middle is for and assume it's supposed to help with water drainage or
39:48something it turns out that it helps you measure out a perfect serving just see how much dry spaghetti
39:55you can fit in the hole and use that as one portion out of the store buying coat hangers you
40:03might notice that the plastic ones feel cheaper than the wooden ones there's a good reason for
40:07this wooden hangers are made out of cedar wood the big difference between the two is that the wooden
40:13ones repel bugs and moths they're stronger and last longer too perfect for things that might stay in
40:21your closet for a long time when you brush your teeth you might have noticed that your toothbrush
40:27has blue bristles they're not just there for show in fact they're there to tell you when it might be
40:33time to switch toothbrushes these bristles lose their strength and color when the brush has been worn down
40:39letting you know that it's time to get rid of it microwaves often look a bit like mini tvs especially
40:48ones where you can clearly see the black film around them this is actually a really important
40:53feature that's used to keep the radiation from slipping away they're called faraday cages if
40:59you want to get technical this is why you can stand next to a microwave without melting into a puddle
41:06that's not to say you should stand in front of the microwave and watch your food heat up
41:10but at least you know you won't grow an extra ear or something okay not really some ovens have a
41:17drawer under them it's tempting to use this to store random junk you don't use often but there's
41:22a better use for it instead this should be used to help keep the food that's waiting to be served
41:28hot
41:28you can take it out of the oven and store it right in this drawer keeping your oven free for
41:33you to carry
41:34on cooking now you're on a plane looking around trying to pass the time before takeoff when you examine
41:41the window you notice this has a little very tiny hole on its bottom don't worry it's not broken it's
41:49there to relieve the pressure that builds up over time as the plane goes up and down it also lets
41:55the
41:55air flow through it now raise your hand if you've ever ridden on an escalator and scrubbed your shoes
42:01on its bristles hey i'm guilty of doing that maybe more than i should it's not there to clean your
42:07shoes
42:07though it's an important safety measure it stops your shoelaces clothing and other stuff from getting
42:12stuck in there avoiding a nasty scene when you go to get off sometimes a piece of fabric comes with
42:20your new clothing it usually comes along with the extra buttons in a little plastic bag you might think
42:26it's just a piece of fabric to use for future patching in case you rip it but that isn't its
42:32purpose
42:32at all it's actually supposed to be put in the washing machine to test how it reacts to various
42:38washings now you don't have to worry about shrinking your new expensive coat because you know how it'll
42:44react to the wash bubbles who doesn't love bubbles most people have fond memories with bubble blowers as a
42:50kid but as adults the closest thing we can get to recapturing that feeling is with bubble baths after a
42:58hard day at work there's nothing better than dipping into a nice warm bubble bath right guys and the
43:04bubbles do more than just clean you if they're high quality bubbles they'll serve as a heat insulator
43:10so they make sure that your bath stays warm for longer boxes of chocolate sometimes have these
43:17mysterious holes in them when i'm eating a box or two i usually ignore them and take out the chocolate
43:23by pressing the bottom of the plastic but it turns out that i've been doing it wrong the whole time
43:30if you press one of the holes the chocolate comes right out i'm certainly going to start doing this
43:36from now on here's another one from the kitchen the handle on a pot will often have a hole in
43:43it
43:44most people use this to hang them on a nail on the wall as an easy storage method the hole
43:49has another use
43:50too when you're cooking you can use this handle to hold your wooden spoon or whatever else you might
43:56be cooking with this makes sure you don't make a mess when you put it down glass bottles usually come
44:03with a cap in them well duh otherwise the liquid would just spill in this cap there's a plastic liner
44:10that seemingly has no purpose right wrong it's a seal
44:16no not a seal a seal it's the kind that helps keep your drink fizzy ah just the refreshment i
44:24needed
44:25a lot of doorknobs are made out of brass and it's not by chance they're made out of this specific
44:31material because it's bacteria's worst enemy that's right it destroys them perfect for those
44:37who want to keep a clean house and avoid germs hey you want a fish you must have noticed those
44:46lines
44:47on some kinds of chips for one thing they help with the distribution of spices and seasonings in other
44:53words all those substances that make your chips taste like cheese are mostly stored inside the lines
45:00plus the lines make chips crunchier some cars have a tiny coffee cup sign on their dashboard it's the
45:09vehicles anti-drowsiness mechanism there are manufacturers that equip their cars with a
45:16drowsiness detection system it analyzes the speed wheel angle and lane deviations to figure out if it's
45:23time for the driver to take a break if it is the vehicle makes several audio signals and the coffee
45:30cup sign starts to flash some plastic milk containers have dents on their sides these dents serve several
45:39purposes for one thing when milk spoils this process usually causes swelling and high pressure buildup
45:47inside the container that's when the dent comes in handy it pops out and doesn't let the jug
45:53blow up plus if you decide to freeze the milk it will expand like any other liquid and then again
46:01the indentation will pop out and prevent the container from breaking inside your freezer
46:07you might have wondered why jerry cans have three handles it's a clever designer move
46:14this way if you carry the container alone you can use only the central handle to distribute the weight evenly
46:21but if your friend wants to help you out each of you can grab the side handle the first jeans
46:29had a
46:29problem workers and miners who were the original jeans wearers put too much pressure on the poor piece of
46:36clothing as a result the seams couldn't withstand the stress and tore tiny metal studs were invented to prevent
46:45this from happening sticky notes come off relatively easily because their adhesive is spread out across
46:52the paper unevenly in small blobs and only some of these blobs touch the surface of whatever you've stuck
46:59the note on that's why when you unstick a post-it and attach it to something else it still works
47:05until all
47:06the glue gets used or covered with dirt soda bottles are always filled in such a way that there's some
47:14space
47:14between the liquid and the cap
47:17that's because soda contains carbon dioxide
47:21it's a gas that can expand once a bottle is heated if there's no gap in the bottle it can
47:26break because of the pressure building inside
47:30also when you open your drink the gases go out in the form of bubbles and the drink is likely
47:36to overflow
47:37the gap helps with this problem too
47:41dental floss is super useful for your teeth but it might be rather hard to operate it regularly slips out
47:48of your fingers and tangles to avoid these problems tear off a piece of dental floss and tie its two
47:56ends
47:56together it'll be much easier to use and won't hurt your fingers
48:02now about those horizontal lines on plastic bottles
48:06they help hold bottles up
48:09some bottles are produced from soft plastic without the lines they wouldn't keep their shape
48:15instead they would twist easily or even break
48:20the soft round part under a soda bottle cap keeps the carbonation from escaping
48:26without it your pop would go flat in no time probably even before you buy it
48:33if you don't have anywhere to put a toothpick after using it break off its flat end at the first
48:39groove
48:40and place it on the table now you can balance the used portion of your toothpick on the groove part
48:46so that it doesn't have to touch the table you can also make a makeshift stand for disposable chopsticks
48:54they have a sort of lump on one side break that lump off before you split the pair
49:01now when you want to take a sushi break just place the stick on this stand
49:08donuts are shaped like rings because otherwise they might get overdone at the edges but uncooked and gooey
49:15inside with a hole in the center both the outside and the inside get ready at the same time
49:23ever notice that layer of clear fluid and gel pens it's called the ink follower or stopper fluid
49:31the gel in such pens contains pigment particles dissolved in a polymer solution
49:37the gel should be thick enough to keep the pigment particles suspended
49:41but also thin enough to flow first onto the ball and then the paper
49:47the main task of the stopper fluid is to be a barrier to prevent the gel from evaporating or
49:53leaking out without this transparent fluid your gel pen wouldn't function the fluid always stays in one
50:01position and doesn't get dissolved with the gel neither does it move backward or flow out of the pen
50:10of the collar it's main purpose is to prevent the tie from sticking out from under the collar
50:19as for that locker loop on the back you can use it to hang the shirt on a hook to
50:25avoid wrinkling it
50:28outer rings and zipper sliders especially when two sliders are used together
50:32are added so that you can connect them with a lock and keep sticky fingers away
50:39most ambulance cars have this word printed on the front of the vehicle that's the word ambulance
50:45backward it's written in reverse so that the driver in front of the ambulance can see the word properly
50:52in their rearview mirror then they can move out of the way and let the ambulance pass
51:00escalator brushes serve an important safety purpose you might have heard that most accidents happen
51:06after people get their bags or clothes stuck in escalators because they stand too close to the
51:12sides but when there are nylon brushes on both sides you can't but keep your feet away from the
51:18escalator skirt panels the result no accidents the side holes in sneakers are for laces since sneakers
51:28were originally invented for basketball players this interesting design allowed them to accommodate any
51:34player's foot they just needed to lace their sneakers in the most comfortable way for them
51:41the holes in the bottoms of your earphones allow air to circulate up and through the speakers
51:47it helps to increase low frequencies making the bass sound deeper the quality of the sound also
51:54becomes much better ever been stranded with a cup of applesauce but no spoon at hand
52:01but each snack pack already has a built-in spoon several twists of the foil lid and here you go
52:11diamond slits on backpacks were originally placed only on traveler bags their purpose was to carry robes
52:19these days you can find such slits on almost every backpack why not use them to carry a bottle of
52:26water an umbrella or a pair of sneakers highlighters are filled with a special semi-transparent fluorescent
52:34ink that can glow in dim light yellow and light green hues are the most popular because they don't
52:42prevent you from seeing the text after black and white photocopying photocopiers perceive yellow and
52:48light green marks as almost non-existent and don't print them
52:54a stop sign has an octagonal shape to help drivers recognize it easily even if they see it from the
53:00back when the signs weren't reflective yet this shape prevented drivers from confusing the stop sign
53:06with any other night the number 57 on a heinz ketchup bottle has nothing to do with the product label
53:15the truth is that the place with the numbers is the very sweet spot you should tap to get the
53:21ketchup
53:21flowing so stop hitting the bottom of your sauce bottle and hit 57 lots of private houses have
53:30triangular shaped roofs because this allows rain snow and fallen leaves to slide off the slope
53:38if all this stuff piled up on top of your house one day your roof would collapse
53:45airplane windows have rounded edges and that's a crucial safety measure
53:49it prevents aircraft accidents weak spots are usually situated in the corners if airplane windows were
53:58square or rectangular each of them would have four potential weak spots under pressure they would collapse