- 13 hours ago
Discover the secret potential of your kitchen gadgets with 22 hidden features that can revolutionize your cooking experience. This video explores the innovative tools that save time and money, from advanced food recognition in air fryers to the incredible efficiency of modern juicers. Learn how smart design can maximize your kitchen's functionality and boost your culinary skills. Uncover the secrets that many miss and elevate your cooking game with these clever hacks. Transform your kitchen routine and optimize every meal with these essential insights.
Category
😹
FunTranscript
00:00Crackers have holes in them to stop them cracking and breaking during baking.
00:04If the holes weren't there, steam would build up inside the cracker and make it collapse.
00:10Take a look at a soda bottle and you'll notice a disc inside the bottle cap.
00:15This helps seal in the liquid and the drink's fizz, stopping it from going flat.
00:20The long neck on your soda bottle is designed like that to encourage you to hold it there.
00:25That way, the heat from your hand will only warm that top bit of the bottle instead of heating up
00:30your whole drink.
00:32It's always hard to see your food in the microwave because of that pesky black grate on the window.
00:38But it's there to stop harmful microwaves from escaping.
00:41Called the Faraday Shield, it protects you as well as ensures that your food cooks properly.
00:48Food items like chips come with about 43% nitrogen inside their package.
00:53It might seem like they sell you half a bag of air, but it's exactly the opposite.
00:58Oxygen, the gas we breathe, would react with the chips inside the bag and make them go rancid quickly.
01:04It's called oxidizing for a reason.
01:07Nitrogen, on the other hand, is an inert gas that helps keep the foodstuffs fresh
01:12and also protects them from breaking during transportation.
01:16A bag of chips that has this gas cushion lets you enjoy your crunchies without them turning to potato crumbs.
01:23Donuts have holes in them so that the inside and outside cook evenly.
01:28Before the holes were added, the inside would often be greasy and doughy while the outside was crisp.
01:35Margins on paper aren't for writing in dates and numbering lists.
01:39They were originally added to serve a protective function.
01:42Back in the day, rats used to be a pesky problem in people's homes and paper was one of their
01:49favorite snacks.
01:50Margins were added as a safeguard so that the rats would nibble on blank paper rather than taking a bite
01:56out of your important work.
01:58That hole in your hollow lollipop stick isn't to prevent choking should it ever be swallowed.
02:03It's actually there to keep the candy in place.
02:07Excess candy flows into the hollow tube and the hole, which when it hardens, keeps the pop in place.
02:13If it was a smooth stick, the candy would slide off easily.
02:18Vacuums come with so many attachments, but do any of us really know what that one with long bristles is
02:24for?
02:25It's for dusting and is perfect for cleaning framed art, blinds, and lampshades.
02:31What's the difference between a wooden hanger and a plastic one?
02:35Aside from helping keep your clothes in shape, cedar wood hangers also repel moths and bugs.
02:42Salt isn't just used for cooking.
02:44It can get rid of tough smells.
02:46Rubbing salt on your fingertips after chopping garlic should remove the smell.
02:51It also works on shoes.
02:53Toasters have a secret slide in the bottom that can be removed,
02:57so you can clean out all those annoying breadcrumbs.
03:00If you ever had problems with popping chocolates from the box,
03:04look at those little holes around them.
03:06They're there to help you.
03:08If you push a hole right next to the candy, it'll jump out easily.
03:13When you take a sip from a coffee cup with a lid,
03:16it decreases air pressure inside the cup, so air tries to get in.
03:21The tiny hole on the lid allows air to enter that way,
03:24so liquid can smoothly pour out the main hole.
03:28More on beverage lids.
03:30The small button on them let restaurant workers and customers, too,
03:35understand what's in a cup.
03:36Near each button, there's a name.
03:39Just look at which one is pushed down.
03:42The numbers on the fruit stickers tell you how exactly they were grown.
03:46If there are four digits and the first is four or three,
03:50the fruit has been sprayed with pesticides.
03:53If there are five digits and the first is nine,
03:57the fruit has been grown organically.
03:59If there are five digits and the first is eight,
04:03the fruit has been genetically modified.
04:06When you're on your way back to the car after bagging up everything you bought,
04:10use loops on a shopping cart to hang the bags.
04:14Now, softer items like bread, eggs, fruit and veggies won't get squashed by the heavier goods.
04:21If you don't have anyone to hold the other end of your tape measure
04:25when you try to measure something, tap a nail on it.
04:28Now, simply hook your tape on it using the tiny hole all tape measures have.
04:34The square-shaped spoon that goes with a McFlurry helps to mix the ice cream toppings
04:40through the dessert.
04:41The spoon hooks directly to a machine and spins around.
04:46Padlocks that are used outside quickly get out of order because of rain.
04:50See this little hole in the bottom?
04:52It's made for pouring engine oil inside.
04:55Do this and the key will again turn in the lock without any difficulty.
05:00You keep banging the bottom of a glass ketchup jar but nothing's coming out.
05:06Here's a little tip.
05:07Turn your ketchup bottle at an angle and tap on the middle of the neck.
05:12In many fast food restaurants, customers fill tiny folded paper cups
05:17to get a portion of ketchup or mustard.
05:19Here's the news.
05:21The cups are supposed to unfold and turn into small paper platters
05:25to hold a great deal more sauce.
05:28That little hole on the handle of a pot or a frying pan isn't just for hanging them on the
05:33wall.
05:34During cooking, put the end of your utensil in the hole
05:37and it'll be propped over the pot to save your kitchen from extra mess.
05:42The blue or any other dark color bristles on your toothbrush
05:45are meant to remind you when it's time to get a new one.
05:48If you see that bristles have become pale, change the toothbrush or its head.
05:54An extra hole at the upper part of the sink has multiple hidden functions.
05:59First, in case someone forgets to close the tap, the water won't overflow and the bathroom won't get flooded.
06:06Second, thanks to that hole, the water drains faster as it gives an escape for the air, helping the water
06:13flow down.
06:14Most metallic zippers have a hidden lock inside them to save you from awkward situations, such as an undone fly.
06:22Don't leave the zipper handle in an upward position.
06:25When you pull it downwards, it automatically locks.
06:28It's all thanks to those tiny grooves hidden underneath the handle.
06:33Spoiled milk emits gases, like most foods when they go off.
06:38A classic plastic milk jug has a concave shape on one side.
06:42So when the gases expand inside the jug, it expands too, and the concave shape curves out.
06:49Also, if you want to save some milk for later and freeze it,
06:53the jug will expand when the milk gets solid as well, occupying more space in a jug.
06:58Bath foam isn't only for fun or a nice smell.
07:02It also helps regulate the temperature.
07:05The bubbles keep the water hot, so you can enjoy a bath a bit longer.
07:09Anyway, it works for acrylic bathtubs only.
07:12Those made of metal lose heat really fast either way.
07:16Many cups and mugs have little grooves on the bottom on purpose.
07:21They're designed for washing machines.
07:23The grooves let the water flow and not spill over your feet when you take the cup out.
07:28Also, those grooves let the air flow so the cup doesn't crack even if the tea is scalding.
07:35A point on an ointment cap is there for a reason too.
07:39Most tubes are usually sealed with foil and it's better to avoid opening it with fingers
07:44unless you're ready to say goodbye to your nails.
07:47A point easily opens even the most safely sealed tube.
07:52Escalator brushes aren't for keeping your shoes clean and polished.
07:56It might be tough to apply wax right on that brush while the escalator's on the move.
08:00It's for your safety.
08:02Brushes won't let you come close to the edge, so a long coat or bootcut jeans won't end up in
08:08between the steps.
08:10All Tic Tac containers are designed to dispense one Tic Tac every time you open it.
08:16The lid has the same shape as the candy.
08:18Turn the container upside down, gently shake it and slowly open it.
08:23You'll notice only one candy stuck between those lid grooves.
08:27So if you just open the container and shake it until five or even more candies fall into your mouth,
08:33it means you've been eating Tic Tacs wrong all this time.
08:37The pom-pom on top of your beanie wasn't put there as a fashion accessory.
08:42The pom-pom was originally added to the hat to prevent sailors from banging their heads on the ceilings of
08:48the ships that were too low.
08:50Airports are some of the most visited and at the same time mysterious places out there.
08:55So let's see what's going on behind the scenes and what secrets airports hide.
09:01At some airports there are special people called profilers.
09:05Such people bring to life a special program called SPOT, screening passengers by observation technique.
09:12They analyze your mimics, gestures and behavior in order to detect suspicious people.
09:18Their job is to notice non-verbal signs of anxiety, people licking their lips, itching or looking around a lot.
09:26If a profiler notices a person acting in an unusual way, they can invite them for an inspection.
09:33There they talk to this person trying to find out more about them and confirm or not their suspicions.
09:40Airport agents might also be watching you all the way from the security check to your gate.
09:45Some airports have facial recognition scanners that can easily track you.
09:50They're equipped with special software that compares passengers' faces with their IDs.
09:56Keep in mind that if you don't charge your laptop before the flight, it may be confiscated.
10:02It's not uncommon for an airport security officer to ask you to power your device up.
10:07If you fail to do it, your gadget can be taken away for an additional check.
10:13For safety reasons, it's crucial to make sure that it hasn't been tampered with or modified in a way that
10:19can cause harm during the flight.
10:21Packing an electric brush in your check-in luggage may land you in trouble.
10:26Brushes produced by some brands have lithium batteries inside and those can potentially lead to serious problems in the air.
10:34That's why leaving your electric brush in your check suitcase isn't an option.
10:39But you're allowed to store them in your carry-on bag.
10:42At the same time, if your device runs on AA batteries, you can put it wherever you want.
10:48Anyone who's ever traveled by plane knows about the no liquids rule.
10:52But not everybody knows that this rule also applies to peanut butter, toothpaste, creams, lotions, liquid makeup, lava lamps, snow
11:02globes, some kinds of medications, deodorant, and even gel shoe inserts.
11:09Now, let's go outside for a while and look at those landing spots.
11:14Airports charge airline companies huge fees for landing on their runways on certain days and at particular times.
11:20But the most interesting thing is that the landing spots can be bought and sold.
11:26For example, in 2016, Oman Air paid Air France around $75 million for one early morning arrival slot at London
11:35Heathrow Airport.
11:36You must have noticed that airfare has increased over the past decade.
11:40That's because of the extremely high prices of landing slots.
11:46Dispatchers don't only control the planes in the sky,
11:48as you can often see in the movies, but they also look after their movements on the ground.
11:54They also control the lighting on the runways.
11:57There's three types of air traffic controllers – en route, terminal, and tower.
12:02Each of these dispatchers has their own area of responsibility.
12:06One dispatcher has about five monitors and the information on them is constantly changing,
12:12since the monitors show weather conditions and information about other planes.
12:17You know how it sometimes goes – you come to a security checkpoint,
12:21and all of a sudden, it turns out you have something prohibited in your carry-on.
12:26But worry not – you still have a chance to save your favorite pen knife!
12:31At some airports, there are on-site postal services, and you might have an opportunity to mail your
12:37belongings to any address you provide. But the mailing fees are pretty high.
12:42Plus, certain items are prohibited, and the postal service won't deliver them.
12:48Airports can be selling your lost luggage right now.
12:51Of course, I don't say that there's no chance for you to get back your suitcases that's traveled to a
12:55different
12:56destination, but just as likely, you might not see it again.
13:00In this case, an airport has the right to sell your misplaced belongings at an auction.
13:06Most airports have an annual lost luggage sale. After paying an entry fee,
13:11you can bid on electronics, clothes, bags, and other stuff.
13:16While flying, you might have a celebrity on board, but you won't know it.
13:21Large airports have separate check-in and security procedures for celebrities.
13:26They often board the plane directly through a hidden door located beside the jet bridge.
13:31Some airlines also use cool cars to transfer VIP passengers from the terminal building to the plane.
13:38At the same time, most people come to the airport well ahead of time.
13:43And the most popular activity while waiting for a flight is wandering through the duty-free zone.
13:49And even though people rarely plan to buy anything there, different products end up in their shopping
13:55baskets. That's because lots of airports are designed in a special way that makes people feel relaxed and at ease.
14:03I'm talking about all those huge windows, a lot of light, massage chairs, and comfortable seating areas.
14:10And statistically, calm passengers are 10% more likely to spend money on retail, duty-free, and food.
14:19Designers put a lot of thought into airport layouts. It helps to ensure the smooth flow of travelers.
14:25And the main point here is easy navigation that can prevent people from getting lost.
14:31This is achieved through subtle but very effective design cues.
14:35And placing duty-free zones between security checkpoints and boarding gates is one of them.
14:41They supposedly help you relax after clearing security and lead you where you need to go.
14:47But speaking of food, a celebrity chef restaurant at the airport might not be as good as it would be
14:53if you were visiting the real thing.
14:55Not chefs themselves, but special restaurant companies are responsible for airport outlets.
15:01One of the reasons is the extremely strict security that surrounds airport deliveries, including food.
15:07You may still have a nice meal, but it won't be the same.
15:11Now, I'll tell you about one more way airports manipulate you into spending your money.
15:17They make you walk through the shiny duty-free stores straight after the security check.
15:22But the most curious thing is that the walkway through such stores usually veers to the left.
15:28That's done because most people are right-handed, which means they use their right arm to pull their luggage
15:34and are more likely to look to the right while passing through the stores.
15:38And the duty-free zone veering to the left leaves more space on the right where passengers are more likely
15:44to look.
15:46Oh, and have you ever noticed how many mirrors there are at airports?
15:50Mirrors are strategically placed there to make airports appear larger and create an illusion of more space.
15:57This in turn helps to reduce the feeling of claustrophobia and makes the airport experience more comfortable for travelers.
16:04If you have an opportunity, don't exchange cash at the airport. You'll never get a good rate there.
16:10Those who didn't buy local currency in advance can instead order it online and collect it at the airport.
16:17Some services only need a few hours notice for such an order.
16:22Or it might even be better to use an ATM to withdraw some cash at your final destination.
16:28Now, have you ever paid attention to airport codes?
16:32The most often used are three-letter codes.
16:35Why this number?
16:36Back in the 1930s in the USA, pilots used the National Weather Service's two-letter city codes to refer to
16:43airports.
16:45But soon, the number of airports in the country outgrew the number of such codes.
16:50That's why airlines expanded this system by adding the third letter. It was usually X.
16:56That's how LA, Los Angeles, turned into LAX.
17:00But even though there shouldn't be two airports with the same code, some of these codes sound so similar you
17:06can easily mistake one for the other.
17:08For example, look at this airport with the code CGP in Bangladesh.
17:14And here we have CPG. It's the code of an airport in Argentina.
17:19It's dangerously easy to fly to the wrong place, so pay attention.
17:24Road and construction workers are usually dressed in orange because the bright orange hue is visible even in bad weather.
17:30It's the most effective color to attract attention and alert people.
17:34No wonder lots of safety jackets and traffic cones are orange as well.
17:38The stop sign has an eight-sided shape to help drivers recognize it easily, even if they see it from
17:44the back.
17:45And when the signs weren't reflective yet, the octagon shape prevented drivers from confusing the stop sign with any other
17:51at night.
17:52The rumble strips on the side of the road are placed there to alert drivers who doze off behind the
17:57wheel.
17:58When their tires move over these strips, the noise and vibration work like an alarm clock.
18:03There are magnetic locks on fuel hoses at gas stations.
18:07They come in handy if someone drives away with the gas nozzle still attached to their car.
18:12In this case, the lock detaches the hose automatically.
18:15Oh, that's embarrassing.
18:17Gasoline looks like a rainbow in a puddle because it can't mix with water.
18:20It forms a thin membrane over it.
18:23When light reflects from it and the water at the same time, you've got a rainbow.
18:29A triple handle on a jerry can is there to make it easier for two people to carry it and
18:34distribute fuel evenly.
18:36Gas cans often have a second hole that actually needs to be uncapped too before you pour the gas.
18:41The air passage will prevent it from pouring out, so no more fuel waste.
18:46Most gas cans have two holes with caps, a bigger and a smaller one.
18:51You're supposed to uncap the smaller hole before pouring gas inside the bigger one.
18:55It'll prevent the liquid from glugging and spilling all over your clothes and the ground.
19:01Another little thingy we often neglect is a point on an ointment cap.
19:05Most tubes are usually sealed with a plastic film or foil, and opening it with your fingernails isn't the best
19:11idea.
19:11A point easily opens even the most safely sealed tube.
19:16You can use most screwdrivers together with a wrench to create more torque.
19:21Just place the wrench over the handle of the screwdriver.
19:24This way, you'll need to apply a lot less force than before.
19:28You'll also be able to get to hard-to-reach areas more easily.
19:32They install cameras in shops, banks, and hospitals to monitor everything.
19:37If something happens, you can call the police or rescuers.
19:41The camera really helps to solve a lot of problems.
19:44Why are there no cameras on planes?
19:47The crew keep order on the plane, but they won't be able to do anything if something serious happens.
19:52Besides, there's nowhere to run on the plane.
19:55During the flight, the cameras are useless, and after the flight, the words of the passengers work ideally instead of
20:02cameras.
20:03So, if cameras do no good, then why spend money on them?
20:07Water is great at cleaning stuff because it has triangular molecules.
20:11They're made of one oxygen and two hydrogen atoms, um, H2O?
20:16Such molecules have slightly different charges on their opposite sides, pretty much like magnets.
20:21That's why water easily sticks to other molecules, including those that make up dirt.
20:26Lots of private houses have triangular-shaped roofs because this allows rain, snow, and fallen leaves to slide off the
20:33slope.
20:33If all this stuff piled up on top of your house, one day, your roof would collapse.
20:39When a storm is coming, clouds seem to turn dark, but it's just an illusion.
20:44Thin clouds on a sunny day let the light through easily.
20:47They also scatter all the colors of the light spectrum.
20:50This makes us perceive the clouds as white, but the thicker the clouds are and the more
20:55water droplets they contain, the less light they let through and the darker they look.
21:00A good doorknob is the one made of brass, bronze, or some copper alloys.
21:06These metals have an anti-germ effect.
21:09Bacteria spread way slower on them.
21:11They also get rid of germs pretty fast, within a couple of hours.
21:15Nope, it doesn't mean you don't have to wash your hands.
21:19Diamonds have such symmetrical shape to show you their brilliance.
21:22Initially, the gems aren't so beautiful.
21:25They go through several stages of cutting, and then become pieces of elegance.
21:30Most of these stones have a round shape with slightly pointed corners.
21:34Diamonds shine the brightest in this shape.
21:38Why are there two holes in the socket?
21:40The left hole is neutral, the right hole is not.
21:44And the gap underneath is ground.
21:46Electricity needs to flow through the chain.
21:49The current flows from the hot slot, passes through your phone charger, for example,
21:53and then goes through the neutral hole.
21:56Ever wondered what that small pocket on your jeans is for?
21:59People used to wear watches on chains.
22:01That small pocket was meant for it.
22:04Now, almost no one wears such a watch, but the pocket remains.
22:08You can still keep something small in there, like a ring.
22:11In London, there are some poles that look like street lamps, but there are no bulbs.
22:16Well, their official name is stink pipes, and they're a thing of the past now.
22:21But they used to come in handy back in the 19th century.
22:24These hollow poles would vent away the air and explosive gases with bad smells
22:29to prevent, shall we say, unwanted consequences.
22:33Most kitchen shears have metal plier-like teeth in the middle.
22:37Between the handle grips, they can help you crack nuts, crab shells, and other tough products.
22:42You can also open jars and bottles or remove herb stems with their help.
22:48Leather often looks dull to the eye because it's covered with itsy-bitsy scratches and scrapes.
22:53They scatter the light that hits the material.
22:55When you coat your shoes in a layer of wax, you fill these tiny crevices.
23:00The surface becomes smoother, and the rays of light bounce off it more evenly.
23:04That's why the leather looks shiny.
23:07Highlighters are filled with a special semi-transparent fluorescent ink that can glow in dim light.
23:14Yellow and light green hues are the most popular,
23:17because they don't prevent you from seeing the text after black and white photocopying.
23:22Photocopiers perceive yellow and light green marks as very pale and don't print them.
23:27They make magnets shaped as a horseshoe because this increases the magnetic force.
23:32Colors matter, too.
23:33The blue part indicates the south pole.
23:36The red part, the north pole.
23:38The two poles work simultaneously and increase the attraction force.
23:42The dime-sized holes in elevator doors is actually a keyhole.
23:47If the doors get stuck, an operator can open them manually thanks to this hole.
23:52They'll just insert a special key.
23:54The tiny hole in the airplane window is there to balance air pressure.
23:59The window has three layers.
24:01The outer pane is extremely sturdy.
24:04It can withstand air pressure differences during takeoff and landing.
24:08The inner pane, which is the closest to you, is made of cheaper materials.
24:12It prevents potential damage to the window.
24:15The hole itself is in the middle pane.
24:17It not only balances the pressure, but also prevents the window from fogging.
24:23Escalator brushes are there for your safety.
24:25They don't allow you to come too close to the edge of the escalator.
24:29This way, your clothes won't end up between the steps.
24:32You see the sun as yellow or orange.
24:35Because the atmosphere of our planet scatters such colors as blue, green, and violet.
24:40This is also why the sun looks warmer at sunrise and sunset.
24:45Go shopping for some oranges and I'm sure you'll get them in a red mesh bag.
24:49You'll rarely see them lying around without one of those.
24:52It's pure marketing, and that color isn't a random choice.
24:56When packed in a red mesh bag, oranges appear more orange, fresher, and more appealing to you.
25:02So, you're more likely to buy them, right?
25:05Lemons are usually sold in green mesh bags for a similar reason.
25:09If you pack them in red, they'll appear more orange.
25:12Green goes better with yellow and makes those lemons stand out.
25:16Mattress manufacturers make a limited number of different mattresses,
25:20and the only way to make them look different is to come up with a fancy stitching pattern.
25:24Two mattresses of two different companies might be the exact same quality, but cost differently.
25:30Most people will never know it and will decide that different patterns
25:33mean something in terms of quality.
25:36So, when shopping, don't mind the pattern at all.
25:40Almost all hotels have white bed sheets.
25:42They choose this color specifically to show how high their standards of cleanliness are.
25:47The whiter and brighter the sheets are, the more luxurious the hotel seems.
25:52It's much easier to see dirt and stains on white linen.
25:55It's like proof that you've checked into a clean room.
25:58Hey, have you ever been vibing out in your room, listening to some of your favorite songs,
26:03admiring the subwoofer of your speaker as it delivers magnificence to your eardrums?
26:08We all have.
26:09But have you ever asked yourself why that same speaker, along with other speakers across the globe,
26:15is almost always black?
26:17Some of you are probably screaming at your screen right now about your speaker being green,
26:22red, or any other color found in the rainbow.
26:25Number one, I said, almost always.
26:28And number two, if you look closely at the gorgeous design of your brightly colored music player,
26:33you'll often find that the speaker beneath it is still colored black.
26:37One possible explanation for this is that the original technology of speakers
26:42had a diaphragm with black particles on it.
26:44So, as soon as a sound is amplified, it sends a charge through the diaphragm,
26:49and these black particles are driven upwards.
26:52The carbon particles bouncing and touching the upper membrane of the diaphragm
26:56are responsible for creating some of the distinct sounds from our speakers that we all love so much.
27:02Speaker manufacturers must have gotten tired of their products changing color with prolonged use,
27:08combined with these black particles settling on the upper membrane of the diaphragm.
27:12So, their logical solution was to color most speakers black.
27:17Another more practical belief as to why speakers are mostly colored black
27:22is that it's a hue that easily matches up with many types of decor.
27:27Walls, furniture, and clothes all often look quite well when combined with this color,
27:32which is why it's so prevalent everywhere you go.
27:35Listening to music has repeatedly scored in the top 10 pastimes in the U.S. based on research.
27:41Nowadays, you find sound speakers everywhere.
27:44In your television, laptop, and your phone, you can't escape them.
27:49But let's take a look at how they started off.
27:52Their origins are in radio and telephone technology.
27:56The first form of a speaker was developed by Johann Philipp Reis in 1861.
28:02The German was a self-taught inventor and installed the speaker on his telephone.
28:07It was just about able to reproduce clear tones,
28:10but it could also replicate muffled speech after a few revisions.
28:16Alexander Graham Bell, the inventor of the telephone, decided to try and produce an
28:21improved version of Reis's speaker. Essentially, Bell and other inventors wanted to make an
28:26electrodynamic speaker. By 1877, it was still yet to exist, but due to the desire of inventors
28:34worldwide to change this, research confirmed that it was extremely possible to make one.
28:39In particular, the work of Werner von Siemens, who came up with the idea of an
28:44electromagnetic coil-driven speaker, was a driving force in arriving at this conclusion.
28:50Why are there magnets in speakers, you might ask?
28:53Every speaker nowadays has an electric current, something the inventors were discussing would
28:59never have taken for granted at any point in their lives. When this electric current is changing,
29:04it produces a magnetic field. To make the panel of the speaker move, magnets are used to create an
29:10opposing magnetic field which creates vibrations. These vibrations are the sound we end up hearing.
29:17The bigger the magnet, the louder the speaker will be. Another inventor, by the name of Thomas
29:23Edison from the US, had filed a British patent for a system using compressed air for an amplifying
29:29mechanism. The first commercial electric loudspeaker saw the light of day only in 1924. The sound
29:37quality produced by the speaker was good enough for motion pictures. It took nearly 20 years for the
29:43next groundbreaking development in the world of loudspeakers. This came with the arrival of the
29:48duplex driver in 1943. It offered better clarity and coherence at high volumes, which was important in
29:55movie theaters. Fittingly, it was nicknamed the voice of the theater. The duplex driver was
30:01immediately tested by the Academy of Motion Picture Arts and Sciences and instantly made its film house
30:07industry standard in 1955. Until now, this loudspeaker design is still used. Indeed, the film industry does
30:17seem to put a lot of effort into its sound, and so did the theaters we watched them in. You
30:22may have
30:22noticed that these buildings often have thick curtains on the walls. These are soundproof or
30:27acoustic curtains, and both are much thicker than regular curtains. They will either consist of heavier
30:33fabrics that are tightly woven or have better quality linings. This means that these curtains will absorb
30:40sound and reduce the acoustic reflection off the ceiling, windows, and flat walls of the room. This
30:46ultimately creates a much better sonic experience. The carpet floors are so thick in theaters for the
30:52same reason. It helps to trap sound by providing insulation. From a practical standpoint, this
30:58carpet is also set up to prevent the sound of footsteps during film screenings. This concept of
31:04trapping sound is also the reason why putting a phone inside a cup will make the phone's speaker seem
31:10louder. Any speaker sitting or suspended in an open space projects its sound in all directions. As the
31:17speaker vibrates to create sound waves, an equal amount of energy leaves from both the front and
31:23the back. By placing a speaker in some form of enclosure, we can redirect some of the energy that
31:29comes from the back of the speaker and project it forwards. By putting the speaker in a cup, you're
31:35directing the sound more efficiently. It travels only one way, making it seem louder than what you'd hear
31:41when you take it out of the cup. Speaking of phones and speakers, ever wonder why your mobile device
31:47makes your speaker produce a buzzing noise? This can occur when the two gadgets are near one another
31:53and your mobile is trying to send and receive data. The transfer of information produces electromagnetic
31:59disturbances in the medium around the speakers. It creates noise in the audio, and as a result,
32:06you can hear the buzzing sound coming from the speaker. A simple way to protect the amazing vibe
32:11your speaker is creating for you from this irritating buzzing noise is just to move your
32:17phone away from your speaker, or vice versa. This will eliminate what is officially known as electromagnetic
32:24interference. Research across America shows that, on average, 74% of people own two or more pairs of
32:33headphones. 46% of them mention they listen to their headphones for more than two hours per day.
32:39Some choose the headphones by their looks, others by the sound quality. In either case,
32:45finding the right pair is important, since a lot of people are willing to spend over $100 on it.
32:51Headphones have become a true fashion accessory. That's why well-known figures are trying to make an
32:57impact in the headphone industry like it's the fashion industry. Music moguls Dr. Dre and Jimmy Iveen
33:04came up with the idea for the now world-famous Beats by Dre Headphones brand. They were walking along
33:10the Pacific Ocean one day in 2006 discussing a sneaker deal as they had an offer on the table from
33:17a major
33:17brand in that arena. After some discussions, they decided they wanted to do something they were more
33:23passionate about and landed on headphones. The duo's idea turned into a brand that was purchased by
33:29Apple in 2014 for $3 billion. It was the largest deal in Apple's history, and Beats by Dre controlled
33:3770% of the headphone market at the time of signing. The move allowed Apple to take over the headphone
33:43space. The release of their popular wireless AirPods headphones in 2016 was another reason it happened.
33:50But how do these popular wireless headphones that many of us own actually work? These headphones
33:57rely on internal batteries to have enough power to remain wireless. Most often, they have conveniently
34:03built-in rechargeable batteries, but sometimes they keep going thanks to standard AA or AAA batteries.
34:11They receive wirelessly transmitted signals from their paired audio sources, be it your phone or laptop.
34:17These signals are encoded by the source device and transmitted most commonly via radio frequencies or
34:24infrared carriers. The headphones receive the signal and decode it to audio. And just like that, it's music to your
34:32ears.
34:33Yeah, I'm sure you've got the energy fusion drivers.
34:33I'm sure you're going to go to full awareness in a lot of entrepreneurs.
34:33And as an open up.
34:34I'm sure you're gonna make it through now.
34:34Why is itgy?
34:35What is your case?
Comments