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Unlock the hidden potential of your cement with groundbreaking mixing techniques that 99% of builders overlook. This must-know guide reveals engineering secrets that enhance strength and performance without increasing costs. Discover the innovative methods used by top contractors to create superior mixes. From bonding tricks to mold-making magic, learn how to elevate your construction game. Dive into the 2026 efficiency meta that transforms ordinary cement into a high-performance material. Get ready for a game-changing revelation that could reshape your approach to building!
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00:00Bet you've never heard of corrugation. It's a system that may lie hidden in your pantry right now.
00:08Ever notice those bumps on food cans? That's exactly what they're called.
00:13And they're not just for aesthetics.
00:15First off, they make the can extra strong.
00:18That's because they can help it from cracking during the manufacturing process.
00:23Plus, these corrugations come in handy during delivery,
00:26acting like a shield to make sure there's no spillage.
00:30They're also useful in the long run, because they help keep the cans in their original shape.
00:36Even when things get too hot or too cold, these corrugations let them breathe a bit.
00:41They expand and contract without breaking the metal.
00:44You may not notice any cracks on regular cans,
00:48but even the tiniest of openings can leave a way for nasty bacteria to get in contact with the food.
00:54Not to mention, they create this little air gap.
00:57So when you pop the can open, everything slides out smoothly,
01:01without you having to put in that much effort.
01:04You know what also doesn't require much effort?
01:07Hitting that subscribe button and liking this video.
01:13You know there's a plant out there that's so eager to reach the sun, you can hear it grow?
01:19Rhubarb, just before it's picked from the fields,
01:21soaks up all the sun rays it can get to make glucose.
01:25After this sunbathing session, it gets transported to dark sheds.
01:30Inside, it keeps on growing and uses the stored glucose as fuel.
01:35Nothing out of the ordinary so far, but in that dark, cozy, and warm place,
01:41rhubarb starts acting weird.
01:43That environment pushes the plant to stretch itself out in hopes it will find sun rays again.
01:50It happens so fast that you can actually hear the buds and stalks making noise as they pop open.
01:58To make sure this process goes smoothly, there's no light allowed.
02:03If light hits the rhubarb at this point, it will start photosynthesizing again and go bitter.
02:12Speaking of everyday groceries, you might have noticed that veggie bags come with some green stripes.
02:18Know that it's a sneaky optical trick.
02:21Those stripes fool our eyes into believing the veggies look way greener than they are.
02:26And it's not just veggies that get this special packaging.
02:30Oranges are often sold in red mesh bags for the same reason.
02:35Lemons? They go for yellow or green bags for that same pop of color.
02:41If your cooking skills aren't that good and you're just afraid you're going to mess up dinner yet again,
02:46stick to mushrooms.
02:48That's because they're almost impossible to overcook.
02:51Unlike other vegetables that turn into mush when overcooked, mushrooms are way more resistant.
02:58They've got this interesting substance called chitin, a molecular structure that works like an armor.
03:04So you can cook them forever.
03:06They won't burn.
03:11Donuts don't have holes in them because it's easier for you to pick them up.
03:15If you've ever tried to make them at home, you might have noticed that when you fry the dough,
03:20the outside gets done quickly, thanks to the hot oil.
03:23If you want the inside to look just as good, you have to keep it in the oil way longer.
03:28But then, the outside would get too brown.
03:32Thanks to that middle hole, the heat gets to both sides equally, cooking up a flawless donut.
03:40Here's how that small piece of paper makes it into your fortune cookie.
03:44First, they bake these cookies flat, like pancakes.
03:48Then, while they're still warm and bendy, they sneak in those tiny messages.
03:52As the cookies cool down, they toughen up and keep their shape,
03:56trapping the fortune inside like a tasty time capsule.
04:00One legend has it that these Asian treats were initially intended to help people send all sorts of secret messages
04:07without causing any suspicion.
04:10Here's a little tip for whenever you're buying lunch at a fast food place.
04:14Skip the word extra when you're ordering.
04:17The moment you speak that term, you're tempting the employees to charge more.
04:22Instead, go for something like,
04:24a little more please, when you're getting a special burrito bowl.
04:30According to a UK study, cheese is the most stolen of foods worldwide.
04:35It's estimated that around 4% of all cheese just vanishes from stores.
04:40And no, it's not mice doing the stealing, it's people.
04:44Why?
04:45Because cheese is becoming more and more valuable.
04:48The price of cheese is constantly going up,
04:51and sneaky thieves are trying to make easy money by simply taking it from the racks.
04:56It's not just cheese, though.
04:58Other interesting items on the thieving list include fresh meat, chocolate, and seafood.
05:06Ferreira, the company behind those luscious jars of Nutella,
05:10needs about 25% of the world's hazelnuts every year.
05:15So if you think about it,
05:161 in 4 hazelnuts ends up in a chocolatey jar.
05:20The manufacturers get the nuts from Turkey, Italy, and Chile,
05:24making sure they get them delivered from both the northern and southern hemispheres
05:28to keep things fresh.
05:30Nutella's impact on the economy is even bigger than you'd imagine.
05:34Because of this demand, the price of hazelnuts went through the roof.
05:39In 2014, a frost hit Turkey's hazelnuts,
05:42supply got halved, and prices were even higher.
05:46Now, even places like New Jersey are trying to grow those Nutella-worthy nuts.
05:55When you imagine someone trying to sneak something into space,
05:58your first thought wouldn't be a sandwich.
06:01But back in 1965, during a Gemini mission,
06:05astronaut John Young brought a corned beef sandwich on board,
06:09going against NASA rules.
06:11He hid it in his spacesuit pocket before blast-off.
06:14About two hours into the five-hour trip,
06:17he went to the mission commander and offered him this unlawful treat.
06:21The commander, being a good sport, took it,
06:24and they shared a quick, savory moment.
06:26He even put the unfinished sandwich in his own spacesuit pocket
06:30to avoid crumbs making a mess of the spacecraft.
06:33Meanwhile, the official NASA-approved food
06:36was waiting patiently in a box nearby.
06:41Surely, radishes aren't your first pick when it comes to salad ingredients,
06:45but they have quite an interesting history, too.
06:47These mustard, broccoli, cabbage, and cauliflower cousins
06:51have been grown and eaten for longer than you'd imagine,
06:55even before the Romans were famous in ancient Egyptian times.
07:00In fact, radishes were used as currency for the people who built the pyramids,
07:04alongside onions and garlic.
07:09You'd think that English are champions when it comes to drinking tea,
07:13but you'd be wrong.
07:14Turkey is, in fact, the tea capital of the world.
07:18Every Turk drinks an average of 1,300 cups of tea each year.
07:23On a regular day, they're sipping on three to five cups,
07:27but when winter hits, they can reach 10 cups a day.
07:31Locals claim tea is like a social custom for them.
07:34It's more than just a hot beverage.
07:36It's an excuse to sit down, enjoy the atmosphere,
07:39and connect with loved ones.
07:41When it comes to types, black tea is preferred.
07:44There might be a magical drink hidden in your fridge.
07:48It's tonic water, and it might be able to glow in the dark.
07:52If you're curious, test it out with some ultraviolet light.
07:55The secret behind this glow is pretty simple.
07:58Tonic water has quinine,
08:01a chemical that lights up under certain conditions.
08:05Quinine was used back in the day
08:06to treat certain health problems.
08:08The stuff was so bitter that some people
08:10started mixing it with sugar and soda water.
08:14In simple terms, things glow because they absorb light energy,
08:18gets all excited, and then releases it as visible light.
08:22Quinine in tonic water absorbs and releases energy,
08:25making your drink look like it's from a fairy tale.
08:31There's an interesting connection between what we hear and what we taste.
08:36Scientists investigated and found that people worldwide
08:39link certain sounds with specific flavors,
08:42and they call it cross-modal correspondence.
08:45High-pitched sounds match up with sweet and sour tastes,
08:49while the lower, jarring sounds go hand-in-hand with bitterness.
08:53If it's staccato, think crunchy,
08:56and if it's smooth and flowing, think creamy.
08:59Some even found music that can enhance the taste of chocolate.
09:03In this study, when people listened to a high-pitched, sweet soundtrack while eating chocolate,
09:09they thought it was sweeter than when they'd heard a lower, more dissonant soundtrack.
09:19Metal buttons on jeans, also known as rivets,
09:23helped make the pockets more durable when miners would fill them with heavy tools.
09:27They're still helpful today, even if you don't store anything heavy in your pockets.
09:31Rivets strengthen the seams and make your jeans last longer.
09:36These tiny ridges on the letters F and J on a keyboard
09:39help us find the correct keys while touch-typing.
09:43Also, since they're located in the center,
09:45they indicate the optimum position for typing.
09:48By the way, QWERTY was invented back in the early 1870s,
09:52and before that, the first keyboards were piano-like,
09:55with two rows of characters in alphabetical order.
09:58Don't blame that little lump on your computer cable
10:01for irritating you when it gets stuck somewhere for the umpteenth time.
10:04This cylinder—shapes and colors may vary—actually helps prevent interference from other signals,
10:10like those your phone emits.
10:12A hole in the handle of pots and even frying pans
10:15is designed as a holder for spoons if it's large enough.
10:19This way, sauce or whatever you stir drops back into the pan,
10:22and there's no more mess in the kitchen.
10:25As for handles, jerry cans have three of them.
10:28It's a smart designer move, so when you carry it alone,
10:31you use only the central handle to distribute the weight evenly.
10:35But your friend wants to help you out.
10:37Each of you grabs the side handle.
10:40A lack of privacy in public bathrooms—
10:42I mean that significant gap beneath, where standard doors tend to be,
10:46is there for a reason.
10:48This way, people do their business faster,
10:50and there are fewer lines.
10:52Also, if something goes wrong,
10:54it's easy to find a person who needs help.
10:57In London, some poles kind of look like street lamps,
11:01but there are no bulbs.
11:02Well, their official name is stink pipes.
11:05And they're a thing of the past now,
11:07but they used to come in handy back in the 19th century.
11:10These hollow poles would take the air and explosive gases
11:13with bad smells up to prevent unwanted consequences.
11:17Books are printed on large sheets,
11:20so one sheet can fit in four printed pages.
11:22If a book has an odd quantity of printed pages,
11:26chances are you'll get a blank one for notes or the author's signature.
11:31Toothbrush bristles have two secret features.
11:33First, they fade over time.
11:36So when it gets less bright, you gotta buy a new one.
11:39Also, the bristles vary in length.
11:41And longer ones on one end can help clean the back teeth better.
11:47Toothpaste stripes aren't more than a marketing trick.
11:49In the 70s, a leading toothpaste brand introduced a blue stripe,
11:53claiming their toothpaste had double action.
11:56Solid white toothpaste has the same functions, though.
12:00Originally, golf balls were smooth.
12:03They have a dimpled surface now
12:04because players noticed that overused balls with damages
12:07flew better than brand new ones.
12:09At some point, manufacturers started producing balls with dimples.
12:15Windshield black dots, or frits,
12:17help dispense the sun glaring right into your eyes.
12:20This frame keeps the UV rays away
12:22and helps the glass heat up evenly,
12:24so it's sort of sunglasses for your car.
12:28The tab on the rearview mirror
12:29wasn't meant to hold your air freshener.
12:31It's a tumbler between day and night mode.
12:34It keeps the glare from other cars at bay,
12:36so you can't be distracted by headlights behind you.
12:40Colored dots on chip bags
12:41help manufacturers control the package color
12:44and show what ink color was used on the package.
12:46No big deal.
12:49Your microwave probably has a silence mode.
12:52Press 1 or 0 and hold.
12:55It might work.
12:56Also, there is sometimes a mute button
12:58you kept ignoring all this time.
13:01Anyway, there are no two identical microwaves,
13:03so a manual should come in handy.
13:08Grocery cart loops
13:09help organize all the stuff in your cart better
13:11so you can enjoy your supermarket trip.
13:13You don't want to put your brand new fancy white jacket
13:16in a cart next to carrots and onions, huh?
13:19Fruit stickers know everything about your apples past.
13:22A five-digit number where the first number is 9
13:25is a good sign.
13:26It's an organic product.
13:28A four-digit number starting with 3 or 4
13:31means it was conventionally farmed.
13:32If the number starts with an 8
13:35and there are 5 digits,
13:36it's best to leave it on the shelf.
13:40Automatic lip liners and eye pencils
13:42have a sharpener installed in the package.
13:44The lid on the back part of the pencil
13:46doesn't only reveal the color.
13:48You can pull it out and sharpen up the product.
13:51If you don't feel like peeling an orange,
13:54cut it on top and bottom.
13:55Make a slit on a side and just pull it open.
14:00Toothpicks sometimes have several grooves
14:02and the section with grooves is a makeshift holder.
14:05It's easy to break the toothpick into two parts.
14:08A smaller one with the groove
14:09can be used to avoid contact with the table.
14:12You can also make a makeshift stand
14:15for disposable sushi sticks.
14:16They have a sort of lump at one side
14:18before you split the pair.
14:20Break that lump off
14:21and when you want to take a sushi break,
14:23just place the stick on this stand.
14:27Most tubes are usually sealed
14:29with plastic film or foil
14:30and opening it with your fingernails
14:32isn't the best idea.
14:34A point on the ointment tab
14:36easily opens even the most safely sealed tube.
14:40A dinner jacket has small pockets
14:42above regular ones.
14:43They're called ticket pockets
14:45and gentlemen wearing such jackets
14:47can quickly pull the tickets
14:48before getting on a train.
14:51Yeah, you've heard before
14:52that a drawer beneath your oven
14:53is there for keeping the food warm
14:55if the guests are running late.
14:56Hey, you can also slow cook
14:58on lower temperatures in that drawer.
15:01All the bottles used to be
15:03of the same green color ones
15:04but it turns out brown ones
15:06are way better at blocking UV light.
15:08Say no more.
15:10A dollar has its secrets too.
15:13A large letter with a rim
15:15shows which bank is responsible
15:17for issuing this bill.
15:18Twelve different Federal Reserve banks
15:20print all the money.
15:21So if you want to know
15:22where your money comes from,
15:23just look for these small codes.
15:25A1 Boston, B2 New York, C3 Philadelphia, D4 Cleveland, E5 Richmond, F6 Atlanta, G7 Chicago, H8 St. Louis,
15:44I-9 Minneapolis, J-10 Kansas City, K-11 Dallas, 1112 San Francisco.
15:57Rough edges on the dimes aren't just about design.
16:00The weight of coins made of precious metal was used to show the coin's actual value.
16:05People would shave off the edges,
16:07spending the shaving coins with the same value,
16:09and melt the edges to make new coins.
16:13To avoid it,
16:14the Minter added that pattern
16:15so people could tell if a coin was cut.
16:19Small dimples on the bottom of some cups
16:21keep them in place on wet surfaces,
16:23and it doesn't let the excess water accumulate
16:25while it's in a dishwasher.
16:29To enjoy fresh and soft peanut butter,
16:31store it upside down.
16:33This way,
16:33the oils don't stay on the bottom all the time
16:35and distribute evenly in the jar.
16:38Bath foam
16:39has a sort of thermoregulatory function.
16:41The bubbles keep the water hot
16:43so that you can enjoy your bath a bit longer.
16:46Disclaimer,
16:47it works for acrylic bathtubs only.
16:49Those made of metal lose heat rather fast,
16:51no matter how much foam you make.
16:54A doorknob made of brass,
16:56bronze,
16:56and some copper alloys
16:58has an anti-germ effect
16:59because of its metal properties.
17:02A small V-patch
17:03right at the bottom of the collar
17:04helps put on the sweater
17:05without losing any shape over time
17:07because it's made of a double layer of webbing material.
17:10Just like waistbands and cuffs.
17:12To avoid spilling juice
17:14right onto your t-shirt,
17:15try pouring it from the other side of the carton.
17:18This way,
17:19it sloshes less
17:20and it's easy to control.
17:23Triangular flaps on small juice cartons
17:25can help control unwanted spillage too.
17:27If you flip them
17:28and use them as handles for the carton,
17:30you won't press the package,
17:31so the juice won't be squeezed uncontrollably.
17:34All the disposable cups look the same.
17:37The secret here
17:38is the special shape
17:39that lets you enjoy your drink easily.
17:41The top is always wider
17:43for the nose to fit in while you're drinking,
17:44and the bottom is always narrower
17:47so anyone can hold it,
17:48even if the hand is small.
17:50Also,
17:51the width difference
17:52allows the cups to stack.
17:54You can use a mason jar
17:55directly onto the blender
17:57with a screw on top
17:58and make any shake you want
17:59without having to wash the blender jar.
18:01The only rule
18:02is to not put your device on max.
18:05There is no need
18:06to tear one of its edges
18:07on stick sachets.
18:09The right way
18:10is to tear them down the middle.
18:11You may say
18:12it's not a big difference,
18:13but at least there's less mess
18:15with those torn paper bits.
18:17Two zips for one section
18:19can be an excellent pickpocket proof.
18:21You can put on a small lock
18:23on those zippers
18:23and make sure no one but you
18:25can open your backpack.
18:27If something got stuck
18:29in your teeth,
18:29it could be hard
18:30to have perfect results
18:31with loose floss.
18:32To increase the tension,
18:34tie it in a knot.
18:35With increased tension,
18:36you'll get rid of that basil
18:38between your teeth
18:38in no time.
18:40A tiny hole
18:41on the bottom of a padlock
18:42is there to drain water
18:44to help avoid corrosion.
18:45Plus,
18:46it's the most convenient place
18:47to lubricate a padlock.
18:49A drop of oil in there
18:50will make it open
18:51and close easier.
18:54A tiny plastic disc
18:55under a bottle lid
18:56is what makes soda sparkling.
18:58While the lid
18:59keeps the liquid inside,
19:00this plastic disc
19:01holds the gases inside.
19:03Without it,
19:04it would just be sweet water.
19:06It's a myth
19:07that the red side
19:07of the eraser
19:08is for pencil
19:09and the blue one
19:10is for ink.
19:10The blue one
19:11gets rid of mistakes
19:12on thicker types of paper only.
19:14It works both for pencil
19:15and even ink,
19:16but make sure
19:17the paper is really thick.
19:20But that blue little thing
19:21can do so much more.
19:22It can polish your jewelry,
19:24clean your electronics,
19:24for example,
19:26the screen of your cell phone.
19:27You know those
19:28irritating sticker residues
19:29that won't peel off?
19:30Eraser helps there too.
19:32So as with cleaning
19:33scuffed up suede
19:34or dirt you have
19:35on your walls.
19:36Glass bottles
19:37usually have a kind of indent
19:39on the bottom
19:39called a punt.
19:41It's handy for those
19:42who pour drinks
19:43in the glass.
19:44The bottle won't slip
19:45from the hands like this.
19:47A cotton pads pack
19:48has those strings on it
19:49to hang on some hook
19:51or holder.
19:51There is no need
19:52to untighten
19:53and tighten the pack again.
19:54Look at the bottom.
19:56It has a perforated line.
19:58Tear along it
19:58and just pull out
19:59a cotton pad
19:59from a hanging pack.
20:02If you lick
20:03a Nintendo cartridge,
20:04you'll notice
20:05they leave a revolting,
20:06sour,
20:06bitterish aftertaste
20:07in your mouth.
20:08They're covered
20:09with denotonium benzoate,
20:11aka one of the most
20:12disgusting flavors.
20:13It prevents people
20:14from swallowing
20:15those cartridges.
20:17Bottles
20:18have long necks
20:19for a reason.
20:20Hold the neck,
20:21not the bottle
20:21if you want to enjoy
20:22a cold drink.
20:23The same goes
20:24for fancy glasses.
20:26Their stem saves
20:27any drink from overheating.
20:28So hold it right.
20:31A button on the reverse
20:32side of a shirt collar
20:33is needed to hold
20:34a tie in place.
20:36Anyway,
20:37slim ties,
20:37which this button
20:38was designed for,
20:39are not that popular today.
20:41So this button
20:42is only an element
20:43of design.
20:44All running shoes
20:45have an anti-blister system
20:47pre-installed.
20:48It's the extra hole
20:50on top of your sneakers.
20:51Make a loop
20:52with this hole
20:52inserting the lace
20:53in backwards.
20:54Cross the laces
20:55and insert them
20:56into the loops.
20:57Then pull the laces down,
20:59creating a kind of lock.
21:00Some people like
21:01to hide the laces
21:02under the soles
21:02to make them
21:03totally invisible.
21:06Women's shirts
21:06oddly have buttons
21:08on the left
21:08because some women
21:09used to have maids
21:10who would help them
21:11dress up.
21:12It was convenient
21:13for maids
21:13to button the shirts
21:14with the button
21:15on the left.
21:17Silica gel
21:18can often be found
21:19in different things
21:20you buy
21:20like bags,
21:21shoes,
21:22and many others.
21:23It's meant to absorb
21:24excess moisture
21:25so anytime your shoes
21:26are a bit wet,
21:27just throw in a sachet
21:29with silica gel.
21:31You are probably
21:32using shampoo wrong
21:33all the time.
21:34Well,
21:35the main thing
21:35you should know
21:36is that you don't apply
21:37it directly on your hair.
21:38You gotta apply it
21:40onto the roots only.
21:41The foam that you make
21:42is enough
21:43to clean your hair.
21:45Notebook margins
21:45were invented
21:46to protect people's notes.
21:48People used to co-live
21:49with rats
21:50and those rodents
21:51nibbled on paper
21:52pretty often.
21:53Still,
21:53they weren't able
21:54to gnaw on more
21:55than the space
21:55left on the margins.
21:57Red cups you saw
21:59at parties
21:59can measure liquids.
22:00The bottom line
22:01equals one ounce,
22:02the second line
22:03equals five ounce,
22:04and the third line
22:05equals 12 ounces.
22:09Detachable headrests
22:10in cars
22:11are all about safety.
22:12If you pull it
22:13out of a seat,
22:14you'll see two
22:14pretty sturdy bars.
22:15If you ever get locked
22:17or trapped in a car,
22:18you can get out of there
22:19smashing the window
22:20with these bars.
22:23A little arrow
22:24next to the refueling indicator
22:25on the car's dashboard
22:27indicates which side
22:28of the vehicle
22:28has fuel tank openings.
22:30It's useful
22:31when you need
22:31to refuel
22:32a rented car.
22:35Roadside rumble strips
22:36come in handy
22:37if someone wants
22:38to drive at night
22:38since they prevent
22:39falling asleep.
22:40Whenever a car
22:41bumps into these strips,
22:42the driver feels vibration
22:44and hears quite a loud noise,
22:46so the driver
22:47can't help
22:47but wake up instantly.
22:50Rings used to be
22:52more than a stylish accessory.
22:54The nobility
22:54used rings as a seal.
22:56Archers wore rings
22:57to protect their fingers
22:58from bowstring injuries,
23:00while needlewomen
23:00from needle pricks.
23:03As for rings,
23:04three rings on a phone jack
23:05are not part of the design.
23:07They represent
23:08different functions.
23:08If your audio jack
23:10has three of them,
23:11it means your device
23:12can produce stereo sound
23:13and your earphones
23:14have the microphone function.
23:17Kings depicted
23:17on playing cards
23:18are real historical characters.
23:21Spades,
23:21King David,
23:23Clubs,
23:24Alexander the Great,
23:25Hearts,
23:26Charles the Great,
23:28Diamonds,
23:29Julius Caesar.
23:30We tore off
23:32post-it notes
23:32incorrectly
23:33all this time.
23:34If you tear them off
23:35from below,
23:36they will stick off
23:37before long.
23:38But if you tear them off
23:39on the side,
23:40along the sticky line,
23:41it will hold on
23:42to the wall much longer.
23:45A lint roller
23:46is good at removing
23:47those tiny fibers,
23:48but you can also use it
23:49to clean other stuff.
23:51For example,
23:52when you want to remove
23:53the dirt from the utensil tray
23:54in your dishwasher,
23:56simply take your
23:57sticky lint roller
23:58and put it into
23:59each compartment
23:59and all crumbs,
24:01dirt,
24:01and leftovers,
24:02they're all gone.
24:04There's a number
24:05put on the side
24:05of many cosmetic products.
24:07It isn't picked
24:08randomly.
24:09It tells you
24:09how long your product
24:10will last
24:10after you've opened it.
24:12Here's why
24:13it has an open jar
24:14for a graphic symbol.
24:17If you prefer
24:17to buy the milk
24:18in those plastic containers,
24:20you've probably seen
24:21those big circles
24:21on the side.
24:22These circles
24:23absorb the shock
24:24if you drop the milk
24:25on the floor
24:25and also give
24:27some extra room
24:27so the container
24:28can expand.
24:29That's how you can see
24:30if the milk's turned bad
24:31without tasting it.
24:33It's sometimes irritating
24:35when you see
24:35you haven't used
24:36the entire stick
24:37of deodorant.
24:38There's a little bit
24:38more left,
24:39but it's hard
24:40to reach it.
24:41Okay,
24:42the trick is easy.
24:43Unscrew the bottom,
24:44take a pencil,
24:44and force it underneath
24:45that moving platform.
24:47That way,
24:48you'll push what's left
24:49of deodorant out.
24:51Two flat prongs
24:53you can see
24:53on standard plugs
24:54used in North
24:55and Central America
24:56make sense.
24:57But how about
24:58those holes near the tips?
24:59Thanks to them,
25:00the outlet firmly grips
25:02the plug
25:02so that it won't loosen
25:03or fall out of the socket.
25:05The second thing
25:06about the holes
25:07is that they allow you
25:08to wire electric power
25:09directly to the prongs
25:10so you don't even have
25:11to use classical
25:12electrical outlets.
25:14So,
25:14if you need to get
25:15electrical power
25:16via direct wires,
25:17yep,
25:18the holes we got over there
25:19make the entire job
25:20much easier.
25:23Airplane windows
25:24have little holes too
25:25and they're one
25:26of the essential features
25:27for a plane
25:28to fly safely.
25:29They protect people
25:30from outside pressure
25:31and generally balance
25:32the pressure
25:33on the windows
25:33when the plane takes off.
25:36A pasta spoon
25:37has a hole
25:38in its handle
25:38which can definitely
25:39be helpful
25:40when you grab pasta
25:41and want to let
25:41water drain out.
25:43However,
25:44it also comes
25:44as a good measuring tool
25:45since the hole fits
25:46around one serving
25:47of pasta.
25:49If you take a box
25:50of aluminum foil,
25:51you'll see tabs
25:52you can press
25:53on the side.
25:53They keep the foil
25:54straight and prevent
25:55it from rolling.
25:56It's also easier
25:58to tear off
25:58some amount of foil
25:59thanks to those tabs.
26:02Sometimes,
26:03things have a specific purpose,
26:04but you can always
26:05give them more rolls.
26:06For instance,
26:07if you want to eat
26:08some applesauce
26:09but you don't have a spoon,
26:11just take the lid,
26:12twist the end
26:13to turn it into a handle
26:14and make a scoop.
26:15Yum!
26:17You can train
26:18finger agility
26:19by catching noodles
26:20and rice
26:21with chopsticks
26:22from the corners
26:23of the Asian food boxes.
26:24Or,
26:25you can expand the box
26:26and then it will
26:27become a plate.
26:29According to one theory,
26:31funny fluffy hat balls
26:32appeared in the 18th century
26:33on the caps
26:34of French sailors.
26:35They were tired
26:36of banging their heads
26:37against low ship ceilings
26:38and ledges
26:39and had created
26:40these pom-poms.
26:42Trailers used to be shown
26:43not before movies
26:45but after.
26:46Just think about
26:47how it's called.
26:48The word trailer
26:49means trailer to something.
26:51To a car,
26:52for example.
26:54Wood hangers
26:55still occupy
26:56a large part
26:57of the market
26:57because cedarwood,
26:58which hangers
26:59are made of,
27:00contains natural oils
27:01which repel moths,
27:03thereby preserving
27:04your things.
27:06To see if the boiled egg
27:07was fresh or not,
27:08just peel it.
27:09The more difficult
27:10it is to clean,
27:11the fresher it is.
27:12There's one more
27:13egg trick.
27:14Try twisting it.
27:15If an egg spins steadily,
27:17it's boiled.
27:18If it spins slowly
27:19or not spin at all,
27:20it's raw.
27:22Airports are some
27:23of the most visited
27:24and, at the same time,
27:26mysterious places out there.
27:27So, let's see
27:28what's going on
27:29behind the scenes
27:30and what secrets
27:31airports hide.
27:33At some airports,
27:34there are special people
27:35called profilers.
27:37Such people bring to life
27:38a special program
27:40called SPOT,
27:41screening passengers
27:42by observation technique.
27:44They analyze
27:45your mimics,
27:46gestures,
27:47and behavior
27:47in order to detect
27:49suspicious people.
27:50Their job
27:51is to notice
27:52non-verbal signs
27:53of anxiety,
27:54people licking their lips,
27:56itching,
27:56or looking around a lot.
27:58If a profiler
27:59notices a person
28:00acting in an unusual way,
28:02they can invite them
28:03for an inspection.
28:05There,
28:05they talk to this person
28:07trying to find out
28:08more about them
28:09and confirm
28:10or not
28:10their suspicions.
28:12Airport agents
28:13might also be watching you
28:14all the way
28:15from the security check
28:16to your gate.
28:17Some airports
28:18have facial recognition
28:19scanners
28:20that can easily track you.
28:22They're equipped
28:23with special software
28:24that compares
28:25passengers' faces
28:26with their IDs.
28:28Keep in mind
28:29that if you don't
28:30charge your laptop
28:31before the flight,
28:32it may be confiscated.
28:34It's not uncommon
28:35for an airport security officer
28:37to ask you
28:38to power your device up.
28:39If you fail to do it,
28:41your gadget
28:42can be taken away
28:43for an additional check.
28:45For safety reasons,
28:46it's crucial
28:47to make sure
28:48that it hasn't been
28:49tampered with
28:49or modified
28:50in a way
28:51that can cause harm
28:52during the flight.
28:53Packing an electric brush
28:55in your check-in luggage
28:56may land you in trouble.
28:58Brushes produced
28:59by some brands
29:00have lithium batteries
29:01inside
29:02and those
29:02can potentially lead
29:04to serious problems
29:05in the air.
29:06That's why
29:07leaving your electric brush
29:08in your check suitcase
29:09isn't an option.
29:11But you're allowed
29:12to store them
29:12in your carry-on bag.
29:14At the same time,
29:15if your device
29:16runs on AA batteries,
29:18you can put it
29:18wherever you want.
29:20Anyone who's
29:21ever traveled by plane
29:22knows about
29:23the no liquids rule,
29:24but not everybody
29:25knows that this rule
29:26also applies
29:27to peanut butter,
29:29toothpaste,
29:29creams,
29:30lotions,
29:31liquid makeup,
29:32lava lamps,
29:34snow globes,
29:34some kinds of medications,
29:37deodorant,
29:38and even gel shoe inserts.
29:41Now,
29:41let's go outside
29:42for a while
29:43and look at
29:43those landing spots.
29:46Airports charge
29:47airline companies
29:48huge fees
29:48for landing
29:49on their runways
29:50on certain days
29:51and at particular times.
29:52But the most
29:53interesting thing
29:54is that the landing spots
29:56can be bought
29:56and sold.
29:57For example,
29:58in 2016,
30:00Oman Air
30:01paid Air France
30:02around $75 million
30:03for one early morning
30:05arrival slot
30:06at London Heathrow Airport.
30:08You must have noticed
30:10that airfare
30:10has increased
30:11over the past decade.
30:12That's because
30:13of the extremely
30:14high prices
30:15of landing slots.
30:18Dispatchers
30:18don't only control
30:19the planes in the sky
30:20as you can often see
30:22in the movies,
30:22but they also look
30:24after their movements
30:25on the ground.
30:26They also control
30:27the lighting
30:27on the runways.
30:29There's three types
30:30of air traffic controllers
30:31on route,
30:32terminal,
30:33and tower.
30:34Each of these dispatchers
30:36has their own
30:36area of responsibility.
30:38One dispatcher
30:39has about five monitors
30:41and the information
30:42on them
30:42is constantly changing
30:44since the monitors
30:45show weather conditions
30:46and information
30:47about other planes.
30:49You know how
30:50it sometimes goes.
30:51You come to
30:52a security checkpoint
30:53and all of a sudden
30:54it turns out
30:55you have something
30:56prohibited
30:56in your carry-on.
30:58But worry not,
30:59you still have a chance
31:00to save your favorite
31:01pen knife.
31:03At some airports,
31:04there are on-site
31:06postal services
31:06and you might have
31:08an opportunity
31:08to mail your belongings
31:09to any address
31:10you provide.
31:12But the mailing fees
31:13are pretty high.
31:14Plus,
31:15certain items
31:16are prohibited
31:16and the postal service
31:18won't deliver them.
31:20Airports can be selling
31:21your lost luggage
31:22right now.
31:23Of course,
31:23I don't say
31:24that there's no chance
31:25for you to get back
31:26your suitcases
31:26that's traveled
31:27to a different destination,
31:28but just as likely,
31:30you might not
31:31see it again.
31:32In this case,
31:33an airport
31:34has the right
31:35to sell your
31:35misplaced belongings
31:36at an auction.
31:38Most airports
31:39have an annual
31:40lost luggage sale.
31:41After paying
31:42an entry fee,
31:43you can bid
31:44on electronics,
31:45clothes,
31:46bags,
31:47and other stuff.
31:48While flying,
31:49you might have
31:50a celebrity on board,
31:51but you won't know it.
31:53Large airports
31:54have separate check-in
31:55and security procedures
31:56for celebrities.
31:57They often board
31:59the plane directly
32:00through a hidden door
32:01located beside
32:02the jet bridge.
32:03Some airlines
32:04also use cool cars
32:06to transfer VIP passengers
32:08from the terminal building
32:09to the plane.
32:10At the same time,
32:12most people come
32:13to the airport
32:13well ahead of time,
32:15and the most popular
32:16activity while waiting
32:17for a flight
32:18is wandering
32:19through the duty-free zone.
32:21And even though
32:22people rarely plan
32:23to buy anything there,
32:25different products
32:26end up in their
32:26shopping baskets.
32:28That's because
32:29lots of airports
32:30are designed
32:31in a special way
32:32that makes people
32:33feel relaxed
32:34and at ease.
32:35I'm talking about
32:36all those huge windows,
32:38a lot of light,
32:39massage chairs,
32:40and comfortable
32:41seating areas.
32:42And statistically,
32:44calm passengers
32:45are 10% more likely
32:46to spend money
32:47on retail,
32:48duty-free,
32:49and food.
32:51Designers put a lot
32:52of thought
32:53into airport layouts.
32:54It helps to ensure
32:55the smooth flow
32:56of travelers.
32:57And the main point here
32:59is easy navigation
33:00that can prevent people
33:01from getting lost.
33:03This is achieved
33:04through subtle
33:05but very effective
33:06design cues.
33:08And placing duty-free zones
33:10between security checkpoints
33:11and boarding gates
33:12is one of them.
33:13They supposedly
33:14help you relax
33:15after clearing security
33:17and lead you
33:18where you need to go.
33:19But speaking of food,
33:21a celebrity chef restaurant
33:22at the airport
33:23might not be as good
33:24as it would be
33:25if you were visiting
33:26the real thing.
33:27Not chefs themselves,
33:29but special restaurant companies
33:30are responsible
33:31for airport outlets.
33:33One of the reasons
33:34is the extremely strict security
33:36that surrounds
33:37airport deliveries,
33:38including food.
33:39You may still have
33:41a nice meal,
33:41but it won't be the same.
33:43Now,
33:44I'll tell you
33:45about one more way
33:46airports manipulate you
33:47into spending your money.
33:49They make you walk
33:50through the shiny duty-free stores
33:52straight after the security check.
33:54But the most curious thing
33:55is that the walkway
33:56through such stores
33:57usually veers to the left.
34:00That's done
34:01because most people
34:02are right-handed,
34:03which means they use
34:04their right arm
34:05to pull their luggage
34:06and are more likely
34:07to look to the right
34:08while passing through the stores.
34:10And the duty-free zone
34:11veering to the left
34:13leaves more space
34:14on the right
34:14where passengers
34:15are more likely to look.
34:17Oh,
34:18and have you ever noticed
34:20how many mirrors
34:21there are at airports?
34:22Mirrors are strategically
34:24placed there
34:24to make airports
34:25appear larger
34:26and create an illusion
34:27of more space.
34:29This in turn
34:30helps to reduce
34:31the feeling of claustrophobia
34:32and makes the airport experience
34:34more comfortable
34:35for travelers.
34:36If you have an opportunity,
34:38don't exchange cash
34:39at the airport.
34:40You'll never get
34:41a good rate there.
34:42Those who didn't buy
34:43local currency in advance
34:45can instead order it online
34:47and collect it
34:48at the airport.
34:49Some services
34:50only need a few hours' notice
34:52for such an order,
34:53or it might even be better
34:55to use an ATM
34:56to withdraw some cash
34:58at your final destination.
35:00Now,
35:01have you ever paid attention
35:02to airport codes?
35:04The most often used
35:05are three-letter codes.
35:07Why this number?
35:08Back in the 1930s
35:10in the USA,
35:11pilots used
35:12the National Weather Service's
35:13two-letter city codes
35:15to refer to airports.
35:16But soon,
35:17the number of airports
35:19in the country
35:19outgrew the number
35:20of such codes.
35:22That's why airlines
35:23expanded this system
35:24by adding the third letter.
35:26It was usually X.
35:28That's how LA,
35:29Los Angeles,
35:30turned into LAX.
35:32But even though
35:33there shouldn't be
35:34two airports
35:34with the same code,
35:36some of these codes
35:37sound so similar
35:38you can easily mistake
35:39one for the other.
35:41For example,
35:42look at this airport
35:43with the code CGP
35:45in Bangladesh.
35:46And here,
35:47we have CPG.
35:48It's the code
35:49of an airport
35:50in Argentina.
35:51It's dangerously easy
35:53to fly to the wrong place.
35:54So pay attention!
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