Let’s consider bathroom tissue if you will. C’mon it’ll be fun. Ther’s all kinds: embossed, three-ply, six-ply, scented — you name it. But whatever it is to the touch or sniff, it looks the same to the eye: white. So how come toilet paper has lost its color so dramatically? The first colored TP appeared in the 1950s, when decorating your bathroom in a single style was a thing. Toilet paper producers started dyeing their products in all possible colors so that people could complete the image of their bathrooms. The popularity of colored toilet paper reached its peak by 1970s, but sometime around the 1980s, personal hygiene shelves became gradually whiter, and by 2004 all color disappeared completely… Other videos you might like:
12 Things You Should Never Flush Down the Toilet https://www.youtube.com/watch?v=FJ5k–ucOuU&
Why Doors in Public Toilets Don't Reach the Floor https://www.youtube.com/watch?v=jEnm59UFjjM&
13 Hygiene Things We Learnt to Do Wrong https://www.youtube.com/watch?v=WMuAcGV8TJw& TIMESTAMPS:
Was colored toilet paper dangerous? 2:01
What was better for the environment 3:04
National toilet paper color of France 4:37
Toilet paper VS. a bucket and a mug 6:17
Clay and stones instead of toilet paper?! 😱 7:25
Reusable sponges 😖 7:54
… and corn cobs 😲 8:22 #toiletpaper #hygiene #brightside SUMMARY:
– Several studies showed that the dye used in colored TP can be potentially dangerous. Dyes weren’t as strictly regulated 50-70 years ago, so manufacturers could basically add whatever coloring they wanted.
– Demand was failing, while the costs of production remained the same. People stopped going crazy about pink and violet bathrooms, opting for the more practical and “clean” white look.
– Environmental research also showed that dyed toilet paper isn’t a good thing.
– It turned out that dyed paper is slower to decompose in nature and is more difficult to dissolve in water. Basically, every time you flush down some amount of dyed TP, you face the risk of clogging the plumbing.
– If you come to France, you’ll see the personal hygiene shelves stacked mostly with pink toilet paper, not white, for your delicate derriere. – In Germany, you would find different patterns, and many Eastern European nations also experiment with colors. – There are countries and traditions, though, that don’t want to have anything with toilet paper at all, considering it dirty. – In India, for example, you probably won’t find TP in any stores because it’s not in their tradition. Instead of wiping yourself, you’re expected to use a bucket and a mug that are put there inside the bathroom for your comfort. – The most interesting (and by far the craziest by today’s standards) were the Ancient Greeks who used clay and stones for hygienic purposes.
– When Romans finished their business, they took the stick and washed themselves… returning it to the water bucket afterwards. And yes, the sponges were reusable. – Colonial Americans also had rather resourceful ways when it came to personal hygiene.
– Farmers took corn cobs into the bathroom with them. I guess they felt those things were better suited for the business. Music by Epidemic Sound https://www.epidemicsound.com/ Subscribe to Bright Side : https://goo.gl/rQTJZz
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People have always been dreaming of conquering other galaxies and exploring space far away from our home. But the thing is that there are enough enigmas in our own Milky Way galaxy! Even better, there is one right inside our Solar System! This mystery is lurking somewhere on the outskirts of the planetary system, puzzling astronomers to no end. Once upon a time, scientists noticed that something bizarre and inexplicable was causing chaos out there, in space. A mysterious celestial body was influencing the orbits of six smaller object in Kuiper Belt, far, far away from our home planet. This something got the name of "Planet Nine"… Other videos you might like:
A Potentially Habitable Super Earth Has Been Discovered https://www.youtube.com/watch?v=6dUYK41ElO0&
NASA Has Just Discovered a New Planet! https://www.youtube.com/watch?v=TOGswBzxO54&
10 Facts About Our Planet You Didn't Learn In School https://www.youtube.com/watch?v=BRXdjc5yxVs& TIMESTAMPS:
Ice Giants 1:13
Will we have to rewrite astronomy books? 2:04
What if you lived on Planet Nine 2:38
It can swallow us?! 😱 4:10
Primordial black holes 5:42 #blackholes #planetnine #brightside Preview photo credit: Artist's concept of a hypothetical planet orbiting far from the Sun: By Caltech/R. Hurt (IPAC), https://solarsystem.nasa.gov/planets/hypothetical-planet-x/in-depth/
Animation is created by Bright Side. SUMMARY:
– The thing is massive: more than 10 times bigger than Earth and around 5,000 times as large as Pluto! – Ice giants aren't as massive as gas giants but have a similar atmosphere. – We used to believe that Neptune is the furthest planet from the Sun. But now, it may turn out that Planet Nine is the champion, being 20 times further away from the center of the Solar System than Neptune! – If you lived on Planet Nine, your year would last 10,000 to 20,000 Earth's years!
– Until scientists see Planet Nine with their own eyes, they can't say for sure that it exists. But the evidence they have is quite solid.
– Scientists are looking for the planet using infrared equipment. If Planet Nine does exist, it's supposed to leak infrared radiation.
– But then, what if Planet Nine isn't a planet at all? The idea, which first appeared in 2019, suggests that the object that has created all this hullabaloo, might be… a black hole! – But even if this guess is correct, you have nothing to worry about: Earth isn't in danger. Primordial black holes are too small and weak to cause any serious harm to our planetary system. – A primordial black hole would explain why hypothetical Planet Nine can't be seen and doesn't produce infrared radiation.
– But one of the main reasons why astronomers would be ecstatic should Planet Nine turn out to be a primordial black hole is the mystery of dark matter!
– Primordial black holes could be the very dark matter astronomers are searching for! Or at least, a kind of dark matter named MACHOs (which stands for massive compact halo objects). Music by Epidemic Sound https://www.epidemicsound.com/ Subscribe to Bright Side : https://goo.gl/rQTJZz
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When you picture an airplane, a pretty familiar shape comes to mind. A long narrow body with two main wings sticking out from the middle, a pair of smaller wings on the back end, and a tail fin in the rear sticking straight up. The wings may be straight or swept to the back, but you wouldn't picture them sweeping forward, would you? Sure, some fighter jets have wings that change position, and older planes might have an extra pair in the front, but you wouldn't have a backward wing. Well, tell that to the X-29. This experimental aircraft was developed by NASA and the US Air Force back in 1984! Other videos you might like:
Why Planes Don't Fly Over the Pacific Ocean https://www.youtube.com/watch?v=00AT5h_sOQM&
That's Why Airplane Seats Are Almost Always Blue https://www.youtube.com/watch?v=0esI1IrxCmk&
Why Lights at Plane Wings Are Different https://www.youtube.com/watch?v=MyHUWG4_pXc& TIMESTAMPS:
It could be a real nightmare for pilots 1:00
What the designers were trying to achieve 1:47
Jets that can change the angle of their wings 5:04
Terrific X-29 7:04 #planes #aviation #brightside Preview photo credit: X-29 Banks over Desert Terrain: By NASA, https://www.nasa.gov/centers/dryden/multimedia/imagegallery/X-29/EC87-0182-14.html
Animation is created by Bright Side. Credit: NASA Image and Video Library
A model of the Ju 287 V1: By JuergenKlueser – Own work, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, https://commons.wikimedia.org/w/index.php?curid=7517883
Junkers Ju 287. Top view (Model): By JuergenKlueser – Own work, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, https://commons.wikimedia.org/w/index.php?curid=7518638
Polikarpov Po-2, of which over 20,000 were built by the Soviet Union: By Aleksandr Markin – Flight Po-2 RA-1945g, CC BY-SA 2.0 https://creativecommons.org/licenses/by-sa/2.0, https://commons.wikimedia.org/w/index.php?curid=29349209
First World War Sopwith Camel biplane: By Airwolfhound from Hertfordshire, UK – Sopwith Camel – Season Premiere Airshow 2018, CC BY-SA 2.0 https://creativecommons.org/licenses/by-sa/2.0, https://commons.wikimedia.org/w/index.php?curid=69212957
The Vulcan to the Sky Trust's Avro Vulcan XH558: By James Humphreys (SalopianJames) – Own work, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, https://commons.wikimedia.org/w/index.php?curid=7033252
SR-10: By Anna Zvereva from Tallinn, Estonia – Russian Air Force, EX-88004, SAT SR-10, CC BY-SA 2.0 https://creativecommons.org/licenses/by-sa/2.0, https://commons.wikimedia.org/w/index.php?curid=62647264
Animation is created by Bright Side. SUMMARY:
– The concept of forward-swept wings dates all the way back to the JU-287, developed in the 1940s, and many countries have experimented with this format over the years.
– Look at any plane developed before the advent of jet engines, and you’ll notice that almost all of them position their wings at a right angle to the body of the aircraft.
– This works great for any aircraft flying less than 460 mph, but causes trouble for anything moving faster than that.
– Unlike straight wings, where one hundred percent of the airflow moves parallel to the body of the plane, swept wings create a stream of air running lengthwise down the wing.
– The air moving across the top of the wing is called the chordwise flow, named after the chord, an imaginary line that goes from the front to the rear edge of the wings. – Some military jets, such as the American F-14 Tomcat, and Russian MiG-23, can change the angle of their wings to take advantage of this effect. – The issue that has yet to be resolved is that the further back the wings of a plane are swept, the more susceptible it is to a stall. – While forward-swept wings reduce drag quite significantly, their unusual aerodynamic properties subject them to a twisting motion as they move through the air.
– This brings us back to the X-29, the shining pinnacle of early eighties aircraft technology.
– Shortly before a test flight, one of the prototypes malfunctioned, causing all three computers to fail simultaneously.
– Ultimately, the X-29 program came to an end in 1991. Music by Epidemic Sound https://www.epidemicsound.com/ Subscribe to Bright Side : https://goo.gl/rQTJZz
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More Why Some Planes Have Backwards Wings Videos

Getting on a plane to go somewhere today is almost as simple as catching a train or a taxi. But a century ago it was way more complicated. If you look at photos of aircraft passengers from the 30s, they’re rarely seen without their jackets or coats on. That wasn't just for the sake of fashion. It was really chilly inside since heated cabins were still rare back then. There were some things you couldn’t fix just by donning an extra layer of clothing. Remember those vomit bags that are still present on most jets, even though hardly anyone ever needs them anymore? They originated from a time when not puking during the flight was a real challenge. Other videos you might like:
What Happens When a Bird Flies Into a Plane Engine https://www.youtube.com/watch?v=CozYL-_ttEc&
Why Planes Don't Fly Over Antarctica https://www.youtube.com/watch?v=dpzX5MJQybw&
Always Fly with a Tennis Ball in Your Carry-On https://www.youtube.com/watch?v=f6FTYXUc0Lo& TIMESTAMPS:
Air travelers felt queasy 1:08
Pilots couldn’t rise further than 15,000 feet from the ground 1:50
There were louder than at a rock concert inside 2:13
Planes were way more sluggish 3:02
How much did air travel cost back then? 4:54
Flying five-star hotel 5:52 #planes #aviation #brightside SUMMARY:
– The low pressure at high altitudes makes it more difficult for the body to absorb oxygen. Air travelers felt queasy and found it hard to breathe. ]
– But the first commercial plane with a pressurization system didn’t emerge until 1938.
– Another drawback of not having the normal pressure on board was turbulence. Without pressurization, pilots couldn’t rise further than 15,000 feet from the ground.
– In the 1930s, many aircraft had either weak or no soundproofing at all. So people onboard had to deal with the sound of wind blasting by, and roaring engines.
– During the 30s, one air trip from New York to Los Angeles took about 25 hours! – To get from one point to another, aviators needed to make over a dozen stops, as well as refuel a couple of times. – In 1938 you’d have to pay $243 for a week-long bumpy trip from London to Brisbane, Australia. That’s about $17,000 in today’s money! – And yet the 20s, and especially the 30s, were dubbed the golden age of flight, and for a reason.
– Passengers had big and comfortable seats, and passengers could gaze out windows that were much more similar to train windows than the tiny plane ones we’re used to today.
– The voyagers ate at real tables while their food was served on fine china dishes.
– It’s hard to imagine, but these ships also had separate bathrooms for women and men, and even bunk beds for sleeping. – If the average cruise speed in the 1920s hovered around 100 mph, a decade later they could fly at about 200 mph. Music by Epidemic Sound https://www.epidemicsound.com/ Subscribe to Bright Side : https://goo.gl/rQTJZz
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More What It Was Like to Fly in the 1930s (Passengers Slept in Real Beds!) Videos

Have you ever wondered why doctors wear white coats, and cooks have those big old floppy caps? What do teachers and pilots have in common? How much do professional line sitter and pet food taster earn? Maybe you know why firefighters shave every day? (Actually, they can wear a mustache but not a beard!) You'll also learn much more about different professions from this video. And watch it till the end if you wanna find out which jobs are the most unusual. Yup, there are REALLY fascinating and interesting professions that are not widely known. Take a look — maybe you will choose one of them! Other videos you might like:
14 Most Unusual Jobs That Actually Pay Well https://www.youtube.com/watch?v=rIjIHG5ve_0&
What HR Managers Learn About You By Looking at Your Clothes https://www.youtube.com/watch?v=t0fM8sCZZes&
5 Hard Interview Questions to Get a Job at Google (With Answers) https://www.youtube.com/watch?v=t9O4usHigKg& TIMESTAMPS:
Clean-shaven firefighters 0:25
Teachers’ job is stressful 0:51
The most boring profession 1:23
Dream job 1:58
The safest profession 2:21
The most dangerous profession 2:41
The cutest profession 3:03
Why doctors always wear white clothes 3:58
Long cylindrical caps 4:45
Courtroom sketch artists 5:19
Unusual professions 6:05 #professions #firefighter #brightside Preview photo credit: A firefighter keeps watch as the wildfire burns a home near Malibu Lake in Malibu, Calif., Friday, Nov. 9, 2018: By FR170512 AP/Associated Press/East News, https://www.eastnews.ru/pictures/picture/id/68267775/i/119/t/127
Reportage on diabetic feet consultations in a hospital in Savoie, France: By AMELIE-BENOIST/BSIP/East News, https://www.eastnews.ru/pictures/picture/id/71841203/i/71/t/127
Animation is created by Bright Side. SUMMARY:
– When a firefighter enters a burning building, they put on an S.C.B.A. – a special mask connected to an oxygen tank on the back. Smoothly shaved face provides a tight and sealed position of such mask. – According to research, teachers experience the same amount of stress as firefighters and… airplane pilots. – Do you find your profession really boring? Don't worry, there’s something much more tedious out there. It’s dry paint watching! – Do you suffer because it’s hard to get up for work in the morning? Hotels sometimes invite people to "test" beds.
– With regard to safety, a study was conducted in Germany, in which they found out which profession is the most beneficial for health – it's economists. – The Japanese spend more than 60% of their time at work in the office. So it's okay if you fall asleep in the middle of a working day or meeting. – It was scientifically proven that red color excites, green calms, and white gives energy, enhances activity, and inspires a sense of purity and… trust. That's why doctors always wear white clothes.
– Have you noticed that some cooks have small caps, while others have long cylindrical ones? This way, the hierarchy of cooks in the kitchen is maintained.
– You have all seen these huge Lego sculptures in stores and at exhibitions. They are constructed by real professionals. – It turns out your dog may have a psychological trauma or complexes, so feel free to take it to an animal psychologist.
– Pets have not only psychologists but also tasters. You can earn up to $25,000 a year if you feel that you have good taste and are ready to try such products. – The readiness and maturity of Parmesan cheese is determined not only by taste, but also by sound. Specially trained people tap Parmesan with a small silver hammer and determine its quality. Music by Epidemic Sound https://www.epidemicsound.com/ Subscribe to Bright Side : https://goo.gl/rQTJZz
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Snakes! They look like an alien species, and some of the things they’re capable of will convince you they’re not from this planet! They see in Predator-like infrared, they shed their skin, and have you seen that weird-looking tongue? Snakes don’t use their tongue like we do. Think about it: you really don’t have time to taste something if you can only swallow food whole without chewing it. Instead of using it to taste, snakes smell with their tongues. That’s why they always flicker it in and out – they want to catch nano-particles in the air that will tell them if their prey or some kind of danger is nearby. Other videos you might like:
What to Do When You See a Snake https://www.youtube.com/watch?v=dlY5wimKr9s&
12 Tips That Will Save Your Life in a Critical Situation https://www.youtube.com/watch?v=umlYYwaYY8E
HOW ANIMALS SEE THE WORLD https://www.youtube.com/watch?v=-ss-nmT7oAA& TIMESTAMPS:
Why do snakes have forked tongues? 0:23
Why don’t snakes have legs? 1:41
There are flying snakes! 2:14
Snakes don’t have eyelids 2:56
Why do they shed their skin? 3:33
Their vision is horrible 4:03
Infrared-sensing! 4:48
Why do cobras have hoods? 5:12
How do rattlesnakes make that noise with their tail? 5:56
Why do they hiss? 6:30
They move faster than the blink of an eye 7:19
Their jaws are like a trap 7:47 #snakes #animalfacts #brightside SUMMARY:
– The fork allows snakes to sense a larger radius and know the direction the scent comes from. For example, if the smell is stronger for one part of the tongue and weaker for the other, then this smelly thing is closer to that first part. – Many snake species still have rudimentary bones that leave no doubts – some time ago, they were legs! – Somewhere in that same evolutionary process, some species aimed to become even more terrifying – they learned how to fly! – Just like legs, snakes have decided they don’t need eyelids either. Why? Because their lookers are covered in scales too!
– Every animal in the world sheds its skin, including people. The only difference is that snakes do it all at once and in one big piece.
– Snakes can’t see colors at all. Most of them only see shapes, and the clearest shape for them is the one that’s moving. – To make up for their horrible eyesight, snakes have a special “pit organ” near their nostrils that can sense heat radiation.
– The iconic cobra hood is made of ribs that extend out and sort of umbrella the loose skin on the sides of the snake’s neck?
– The real reason for the hiss – snakes don’t have vocal cords. They only have a glottis, which is a flap that closes and opens the windpipe so that food doesn’t go down the wrong tube when it’s swallowed.
– It takes you 200 milliseconds to blink. Sounds like a lot for such a simple movement, but you know how quick that is!
– A snake’s lower jaw isn’t attached to the upper part of the skull, which makes them highly flexible. They can open their mouth up to 150° and swallow prey that’s 5 times wider than their own body. Music by Epidemic Sound https://www.epidemicsound.com/ Subscribe to Bright Side : https://goo.gl/rQTJZz
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The “Titanic” film earned well over three billion dollars at the box office, making it the third highest-grossing movie of all time. But didn't a question pop into your head? Why didn't people try climbing on the iceberg to get out of the water? Well, if you look at any picture of an iceberg, you'll see that they can get quite steep. Sure, some might be scalable, but others are nothing but sheer cliffs of jagged ice. Best case, it would be like climbing a mountain; worst case, a frozen cliffside. Other videos you might like:
Titanic Survivor Claims an Iceberg Didn't Destroy the Ship https://www.youtube.com/watch?v=Hs2LY5NYL0I&
What Happened to the Titanic's Sister Ships https://www.youtube.com/watch?v=iOyNVQik8t0&
A Legendary Woman Who Escaped the Titanic, Britannic, And Olympic https://www.youtube.com/watch?v=CbjUpxROZ_g& TIMESTAMPS:
Ice floes VS. icebergs 0:54
Empty boats 3:18
The biggest problem: reaching the iceberg 4:47 #titanic #iceberg #brightside SUMMARY:
– A floe is a flat mass of ice found drifting in the ocean. It is low, flat, and relatively shallow, while an iceberg is none of those things.
– Ice floes can be hazardous, but the concern is that a ship might get pinned and crushed between two of them instead of sinking outright.
– The Titanic hit an iceberg, and if you look at any picture of an iceberg, you'll see that they can get quite steep. – Imagine trying to pull that off in the dark, using only your hands and maybe a bit of rope, and surrounded by over a thousand other confused and freezing people. – The Titanic didn't sink the moment it made contact with the ice. It actually took a full two hours and forty minutes to go under. – When it came time to board the lifeboats, many passengers were reluctant, believing themselves safer on the big warm ship than the tiny open boats.
– If people were that reluctant to board escape craft until it was almost too late, how were the crew going to convince them to clamber atop a freezing lump of ice? – These are all big problems that would’ve made evacuating to the iceberg unfeasible, and we haven't even gotten to the biggest one on the list: reaching it. – The Titanic didn’t exactly grind to a halt the moment it hit the iceberg. As you might have guessed, the ship's helmsman had been trying to steer away from the ice before the collision.
– A glancing blow meant the Titanic wasn't stopped in its tracks. It's estimated that the Titanic was clipping along at around 22 knots, about 24 miles per hour for landlubbers. – The captain would’ve had to steer his ship back to the iceberg, something that might not have even been possible given the circumstances.
– While escaping to the iceberg makes for an interesting idea, it wouldn’t necessarily have been a good one. If anything, attempting it could have made the disaster even worse. Music by Epidemic Sound https://www.epidemicsound.com/ Subscribe to Bright Side : https://goo.gl/rQTJZz
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More Why People on the Titanic Didn’t Just Climb the Iceberg Videos

Most commercial aircraft, for example, the mammoth Airbus A380, which can seat up to 868 passengers, or the somewhat smaller Boeing 747, have blunt noses. On the other hand, several models of passenger airliners have sharp noses. And all military airplanes have pointed noses. So, what gives? There are two types of planes: subsonic (meaning their speed is slower than the speed of sound) and supersonic (the ones that fly faster than you know what). And it turns out that the manufacturers decide on the shape of a plane's nose depending on the speed at which it's going to travel. Other videos you might like:
Why Planes Don't Fly Over the Pacific Ocean https://www.youtube.com/watch?v=00AT5h_sOQM&
Why Airplanes Are White https://www.youtube.com/watch?v=KchRdiTzDz0&
Why Lights at Plane Wings Are Different https://www.youtube.com/watch?v=MyHUWG4_pXc& TIMESTAMPS:
What would happen if a supersonic plane had a rounded nose? 1:39
So why do spacecraft have blunt noses? 2:47
Planes without windows 4:00
Electric planes 4:26
Planes from carbon fiber 5:19
The Sky Whale 6:22
The V-shaped aircraft 7:50 #planes #future #brightside Preview photo credit: Concorde 1 94-9-5 kix: By spaceaero2 – Self-photographed, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, https://commons.wikimedia.org/w/index.php?curid=7439583
Animation is created by Bright Side. SUMMARY:
– Subsonic planes are equipped with a rounded nose. During the flight, it allows the air to move around the airplane more freely. – When the air first meets the rounded nose of a subsonic airplane, it produces a shock wave.
– Just look at the famous Concorde plane, which stopped flying only in 2003. With its pointed nose, this supersonic passenger airliner could fly at a maximum speed of more than twice the speed of sound. – The faster a plane flies after passing the sound barrier, the hotter it becomes. That's why some of the fastest aircraft are made of titanium. – In any case, there’s a chance that in several decades it won't matter whether a plane has a pointed or a blunt nose, because aircraft might start to look totally different altogether.
– For example, according to one of the predictions, planes in the future might come without windows whatsoever! – Air travel is likely to become much greener by 2050, thanks to commercial airplanes becoming fully electric.
– Also, in several decades, planes might lose their tails! – At some point, you might witness aluminum planes turning into carbon fiber ones! – There might also be some unusual looking and oddly shaped aircraft. For example, the airplanes of the future might get a box wing design.
– Another cool aircraft project is called the Sky Whale; this plane may easily become the largest passenger airliner ever.
– How do you feel about the "Flying V" aircraft? Such an unusual shape is supposed to make the plane super energy efficient! Also, the V-shaped aircraft would be able to travel ultra-long-haul distances. Music by Epidemic Sound https://www.epidemicsound.com/ Subscribe to Bright Side : https://goo.gl/rQTJZz
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People have been to space, they have invented antibiotics, you can chat with your friends with the help of your watch! But once elevator doors close, all our gimmicky phones just quit! But the worst thing is that there’s nothing we can do about it. In most cases, radio waves easily penetrate all kinds of materials, but massive chunks of solid stuff, such as rock or metal can stop them. For example, if you’ve ever driven in a mountainous region, you might have noticed that your phone signal vanished and reappeared again. This mystery has a simple explanation. Other videos you might like:
Stop Charging Your Phone at Night, Here's Why https://www.youtube.com/watch?v=jnb4rdaKW6k&
9 Signs Your Phone Isn't Your Private Zone Anymore https://www.youtube.com/watch?v=yHumNXawGck&
If Your Own Number Calls You, Don't Pick Up! https://www.youtube.com/watch?v=d_b4fzMzIKs& TIMESTAMPS:
What magic makes your phone work 0:44
… and what stops radio waves 1:36
What if there were a super strong cell tower? 3:12
Why your phone lets you down in certain grocery stores 3:42
… as well as at concerts and sporting events 5:15 #phones #gadgets #brightside SUMMARY:
– Your cell phone is something like a two-way radio. Inside, it has a radio receiver (which gets signals) and a radio transmitter (which sends signals). – Cell towers begin to send radio waves from one to another until, finally, your coded voice reaches your friend’s phone. – An elevator is a compact box made of thick sheets of metal and stuffed with electronics. – In most cases, radio waves easily penetrate all kinds of materials, but massive chunks of solid stuff, such as rock or metal can stop them.
– If there is a cliff or a mountain between your phone and the nearest cell tower, it will easily prevent radio waves from getting to you.
– Something similar takes place when you’re in an elevator. Radio waves from your friend’s phone are desperately trying to reach your cell phone. But they meet a barrier they can’t penetrate. – But have you ever noticed how your phone refuses to work properly once you enter certain grocery stores?
– Most commercial buildings are built with the help of massive iron supports, are covered with aluminum roof tiles, and have walls filled with concrete. – But what if I tell you that my phone also regularly lets me down at concerts, big conferences, and even sporting events? – Apparently, you won’t be the only one who will be eager to share the score with those who haven’t managed to come. That’s why your cell phone must compete with thousands of other phones for the attention of the nearest antennas.
– It may seem very confusing, but the truth is that your phone will know that there is a network out there and that this network does work. But at the same time, it won’t be able to connect to it. Music by Epidemic Sound https://www.epidemicsound.com/ Subscribe to Bright Side : https://goo.gl/rQTJZz
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