The Freshest Collection of Cool Facts Out There

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Get ready to dive into "The Freshest Collection of Cool Facts Out There"! Did you know that some men use hidden heel lifts to appear taller? That's just one of the many surprising tidbits you'll learn. This video is packed with fascinating facts that will blow your mind and make you the most interesting person at any party. Don't miss out on these amazing discoveries—click play now!

Transcript

00:00Some men wear shoes with hidden heel lifts to look taller.

00:04Such shoes can make a person up to 6 inches taller.

00:07They look like regular shoes, but inside they have this extra insert.

00:12Sometimes, such an insert is glued down.

00:15Sometimes it's removable, and you can choose the height you need yourself.

00:20When the Titanic hit the iceberg and sank sometime later,

00:24the Atlantic Ocean was around 28 degrees Fahrenheit,

00:26which means the water was below its freezing point.

00:30No wonder so many passengers didn't make it.

00:34Some birds have a row of bristles protruding from the edges of their eyelids.

00:39Those bristles can probably be called eyelashes.

00:42But while human eyelashes are modified hairs meant to protect the eye,

00:46bird eyelashes are modified feathers.

00:50Identical twins don't actually have the same fingerprints,

00:53so you can't blame your misdeeds on your sibling after all.

00:57Different factors during development in the womb,

00:59like the position of the womb,

01:01umbilical cord length,

01:02and the rate of finger growth impact fingerprints.

01:06Earth's rotation speed is changing.

01:09It's slowing down right now while we're talking.

01:11It means that, on average,

01:13the length of the day gets 1.8 seconds longer every century.

01:17600 million years ago,

01:19a day lasted a mere 21 hours.

01:24Most world maps are wrong.

01:26On the majority of maps,

01:27they still use the Mercator projection,

01:29which was the first developed in 1569.

01:32But this method is very inaccurate,

01:35and makes Alaska look as large as Brazil,

01:38while in reality,

01:39it's five times smaller.

01:41As for Greenland,

01:42it looks 14 times larger than it actually is.

01:46For a map to be precise,

01:48it would need to be life-sized and round,

01:50not flat.

01:53Ants don't have lungs.

01:54They breathe through tiny openings known as spiracles.

01:58An ant may have 9 or 10 of those on each side of the body,

02:01depending on the species.

02:02The average color of the universe is poetically called Cosmic Latte.

02:09In a 2002 study,

02:11scientists discovered that the light coming from other galaxies

02:14averaged into a beige color that was very close to white,

02:18just like the drink beloved by many.

02:22There is such a thing as minus decibels.

02:25The quietest place on Earth

02:27is Microsoft's anechoic chamber in Redmond, USA.

02:30The level of sound there is minus 20.6 decibels.

02:35Such chambers are built out of heavy concrete and bricks,

02:38and are placed on springs to stop vibrations

02:40from entering the chamber through the floor.

02:45Bananas are radioactive.

02:47Wait, where did you go?

02:49It's not that bad.

02:51Bananas are rich in potassium,

02:52so each banana is slightly radioactive

02:54due to the natural isotope potassium-40.

02:58On the other hand,

02:59your body contains around 16 milligrams of potassium-40,

03:03so you're actually about 280 times more radioactive

03:06than that poor banana.

03:08And in any case,

03:09your body gets rid of that excess potassium-40

03:11from a banana within several hours.

03:16There's simply no such thing as a straight line.

03:19You just need to zoom in close enough,

03:21and you're bound to spot some irregularities.

03:24Even a laser light beam is a bit curved.

03:26In emergencies, fish form orderly lines.

03:31For example,

03:32when evacuating through narrow spaces in dangerous situations,

03:36school of neon tetrafish cue

03:38so that they don't crash into one another

03:40or clog up the line.

03:42Scientists think that this behavior means

03:45that fish can respect social rules

03:46even in emergency situations,

03:49unlike us humans.

03:52Hippos can't swim.

03:53These animals have large bones.

03:56These bones are so big and dense

03:58that it makes hippos barely buoyant at all.

04:01So, these animals don't swim.

04:03Instead,

04:03they perform something like

04:05a slow-motion gallop on the riverbed.

04:08Hippos can also sleep underwater

04:10thanks to a reflex

04:11that allows them to rise to the surface,

04:13take a breath,

04:14and sink back down to the bottom

04:16without waking up.

04:20Lego bricks can withstand compression

04:23better than concrete.

04:25A regular plastic Lego brick

04:26can support the weight of

04:27375,000 other bricks

04:30before it breaks.

04:32Theoretically,

04:33it could allow you to build a tower

04:34more than 2 miles in height.

04:36But if we decide to scale this up

04:38to house-sized bricks,

04:40the price would be exorbitant.

04:42If you ever go to space,

04:45you can take your yo-yo with you.

04:47In 2012,

04:48NASA astronaut Don Petit

04:50took a yo-yo on board

04:51the International Space Station

04:53and used it to show some tricks.

04:55You see,

04:56a yo-yo mostly relies

04:57on the laws of conservation

04:58of angular momentum

05:00to perform tricks.

05:01And if you keep the string taut,

05:03these laws apply in microgravity too.

05:07There's a theory that claims

05:08that we sweat when we're anxious

05:10to alert the brains of other people

05:12that they're primed

05:13for that danger

05:14that's making us feel anxiety.

05:16Brain scans have revealed

05:17that when you sniff the sweat

05:19produced by a panicking person,

05:21regions of the brain

05:22responsible for emotional

05:23and social signals light up.

05:26And when you are anxious,

05:27your sympathetic nervous system

05:29produces hormones,

05:30including adrenaline,

05:31which switches on your sweat glands.

05:34There are rainbows on Venus,

05:36and they're called glories.

05:39A glory looks like a series

05:40of colored concentric rings

05:42and is caused by the interference

05:43of light waves inside droplets

05:45rather than the process

05:47of reflection, refraction,

05:48and dispersion of light,

05:50which produces rainbows.

05:53Protons look like bagels,

05:55spheres, peanuts,

05:56and rugby balls.

05:58In other words,

05:58protons come in different shapes

06:00and sizes.

06:01Their appearance changes

06:02based on the speed of quarks,

06:04smaller particles within them.

06:07If you look at the moon

06:08while being in the southern hemisphere,

06:10it will seem to be upside down,

06:12and the man on the moon

06:13will look more like a rabbit.

06:16You will remember more of your dreams

06:18if you sleep badly

06:19and wake up many times

06:20throughout the night.

06:21You're also more likely

06:22to remember your dream

06:23if someone or something

06:25wakes you up in the middle of it.

06:27Dogs tilt their heads

06:28while listening to people

06:29to pinpoint familiar words

06:31like walkies more effectively.

06:34It also helps them

06:35to understand the tone

06:35of your voice better.

06:37There's also an idea

06:38that if a dog

06:39doesn't tilt its head often,

06:40it's because it relies

06:41more on sight

06:42and less on sound.

06:46Mirrors facing each other

06:48won't produce

06:49infinite reflections.

06:50Each next reflection

06:51will be darker

06:52than the previous one,

06:53and eventually,

06:54they will fade

06:55into invisibility.

06:57Mirrors absorb

06:58just a fraction

06:59of the energy

06:59of the light

07:00falling on them,

07:00so the total number

07:02of reflections

07:02mirrors can produce

07:04is around several hundred.

07:07You can smell ants

07:08since many species

07:09of these insects

07:10produce strong-smelling chemicals

07:12when they feel threatened

07:13or angry

07:14or when they're being squished.

07:16Trapjaw ants release

07:17a chocolatey smell

07:18when they're crushed,

07:19and citronella ants

07:21give off a lemony odor

07:22when they're threatened.

07:23Giraffes hum

07:26when they want

07:27to communicate

07:27with each other.

07:28Researchers think

07:29that this low-frequency humming

07:31might be a form

07:32of contact call

07:33between individuals

07:34that have been separated

07:35from their herd.

07:37It can also help giraffes

07:38find each other

07:39in the dark,

07:40but the coolest thing

07:41about these magnificent animals?

07:43Some scientists think

07:44that they could sleep talk, too.

07:49And a cool bonus story

07:50for you

07:51about a marathon runner

07:52who took over 50 years

07:54to finish the race.

07:56Japanese marathoner runner

07:57Shizu Kanakuri

07:58was selected

08:00as one of the two athletes

08:01that Japan could send

08:02to the 1912 Stockholm Olympics.

08:05But Kanakuri

08:06shockingly disappeared

08:07during the marathon race.

08:09It turned out

08:10that after a rough

08:1118-day-long trip

08:12to Stockholm,

08:13first by ship

08:14and then by train,

08:15the man was exhausted.

08:17During the race,

08:18he stopped running

08:19because his condition

08:20simply didn't allow him

08:21to run further.

08:22The athlete stumbled

08:24into a nearby garden party

08:25where he drank orange juice

08:27and stayed for a while

08:28to recover.

08:29Later,

08:30Kanakuri was so embarrassed

08:31by his failure

08:32that he returned to Japan

08:34without notifying anyone,

08:36including race officials.

08:38So,

08:38Swedish authorities

08:39considered him missing

08:40for 50 years

08:41before finding out

08:43that he was peacefully living

08:44in his home country.

08:46In 1967,

08:47the athlete was offered

08:48the opportunity

08:49to finish his run.

08:51He accepted.

08:5154 years,

08:538 months,

08:546 days,

08:555 hours,

08:5532 minutes,

08:56and 20.3 seconds

08:58after he started the race,

08:59he completed the marathon.

09:01It was a long trip.

09:03Along the way,

09:04the man got married,

09:05had 6 kids,

09:06and 10 grandchildren.

09:07That's it for today.

09:11So,

09:11hey,

09:12if you pacified your curiosity,

09:13then give the video a like

09:15and share it with your friends.

09:16Or,

09:16if you want more,

09:17just click on these videos

09:18and stay on the bright side.

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