If you were in elementary school before 2006, there's a good chance you had to memorize the order of the 9 planets in our solar system; Mercury, Venus, Earth, Mars, Jupiter, Saturn, URinus—also pronounced UrANUS, and finally Neptune, and Pluto. Now, if you're currently in elementary school, you might be saying, "Wait, there were nine planets?” So, what happened to Pluto? It’s not like it’s gone anywhere. It’s still out there on the edge of the solar system, as cold and far away as ever, so what changed? Other videos you might like:
What If Just One Planet Disappeared from the Solar System

9 Earth-Like Planets We Can Move On Right Now

10 Facts About Our Planet You Didn't Learn In School
https://youtu.be/BRXdjc5yxVs TIMESTAMPS:
What happened to Pluto? 0:46
What does the word planet mean? 1:26
How large is Pluto? 3:12
If it has a satellite, is it a planet? 4:03
The discovery of Eris 4:59
What does it take to be a planet now? 5:31
Scientists who believe Pluto is a planet 6:11 #pluto #spacefacts #brightside SUMMARY:
-Pluto hasn't changed, but our understanding of it has. We know way more about space than we did one hundred years ago.
-From the age of Galileo to the nineteenth century, planet referred to any object orbiting the Sun. So astronomers kept finding countless planets. -We know that Pluto is only one 459th the size of planet Earth, making it smaller than the moon and only about twice the size of the former planet Ceres. – Charon may be smaller than Pluto, but not that much smaller. One half the diameter might seem like a big difference, but not compared to the differences in size between the other planets and their moons.
-While Eris is slightly smaller than Pluto, initial measurements placed it as somewhat more massive. This added one more strike against Pluto’s status as a planet.
-First, a planet must orbit the Sun. Number two is that the object must be a sphere, or at least nearly so. Pluto checks the first two boxes but runs into trouble with number three, which says a planet must have "cleared the neighborhood" around it.
-Scientists who disagree with the IAU’s ruling and want to call Pluto a planet once more propose that any object with enough mass to maintain a spherical, or nearly spherical, shape would qualify as a planet. Preview photo credit: Global Mosaic of Pluto in True Color: By NASA/JHUAPL/SwRI, https://www.nasa.gov/image-feature/global-mosaic-of-pluto-in-true-color
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Cockroaches are unsanitary and annoying pests that are unwelcome guests in any home. But the smelly and expensive pesticides out there on the market are just as unpleasant and unsafe! So ditch the toxic chemicals, and try these 100% natural ways to keep roaches out of your house for good! Basic things like garlic, lemons, or vinegar will be your best friends if you want to get rid of those insects. If you try any of these natural remedies over time but it doesn’t seem to make a difference, then it’s probably high-time to call a professional! Other videos you might like:
10 Natural Ways to Get Rid of Ants And Bugs In Your House

7 Effective Ways to Get Rid of All Insects at Home

How to Identify a Bug Bite and What to Do With It
https://youtu.be/TBLmWGYoSKY TIMESTAMPS:
Know where and why infestations start 0:28
Bay Leaves 1:09
Garlic or Cayenne Powder 1:33
Lemons 1:52
Vinegar with Peppermint Oil 2:21
Neem Oil 2:49
Soap Solution 3:15
Catnip 3:48
DIY Traps 4:21
Baking Soda and Sugar Trap 4:43
Duct Tape Trap 5:22
Slippery Jar Trap 6:03
The Coffee Trap 6:45
If none of the above helps … 7:26 #cockroaches #getridofinsects #brightside SUMMARY:
-Infestations usually start in the kitchen, especially in those dark hard-to-clean spaces behind and under cabinets and appliances.
-Try tucking bay leaves or leaving a clump in those hard-to-clean places. This method may take a lot of bay leaves and patience, but it’s a nice natural way to send roaches packing. -You can use garlic- or onion powder, and sprinkle it in and around their favorite hangout spots.
-The lemon juice will effectively repel these pests, and your kitchen will smell amazing too!
-Just fill a medium-sized spray bottle with mostly vinegar, and add enough drops of peppermint essential oil so that you can smell it. Spray your kitchen and bathroom. -Neem oil keeps away a lot of insects and pests because it contains a certain chemical that’s poisonous to them.
-Cockroaches and similar pests breathe through the pores of their shells and skin, so when they start crawling around in this soap, the borax will get the job done. -Put some fresh catnip leaves in a sachet – you know, those little sheer drawstring bags usually used for steeping tea – or other porous bag. Cockroaches can’t stand it. -Once you’ve put the traps together, place them in the spots where you think the roaches are coming from, like nice dark places for them to look for food and water. -The sweet sugary smell attracts roaches, so they eat the powder mixture. Once they take a drink of water, it reacts with the baking soda, and, well, let’s just say the roaches get a bad case of bubble guts.
-Cut a sizable strip of duct tape off the roll, maybe about the length of your forearm. Put the strip sticky-side-up, and fold down each end so that it’s easy to pick up and dispose of later on. You’ll also need a bait.
-The cockroaches will climb in to go after the bait, but they won’t be able to climb back up the slippery surface to escape.
-Roaches are drawn to the smell of coffee too, so they’ll climb in after the grounds but won’t be able to get out since they’re not the greatest of swimmers.
-If you try any of these natural remedies over time but it doesn’t seem to make a difference, then it’s probably high-time to call a professional! Music by Epidemic Sound https://www.epidemicsound.com/ Subscribe to Bright Side : https://goo.gl/rQTJZz
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Bangkok, 2016. A man is going to the bathroom. He is getting ready to relax when all of a sudden, something crawls out of the toilet pipe and bites him. The man keeps his wits about him and calls the rescue service. The intruder is soon pulled out of the toilet, and it turns out to be a 10-foot python! Yes, there was a python in the potty! And this case is not the only one. Rescuers pull out dozens of snakes from toilets around the world every year. And, not only snakes get in there, but also octopuses, rats, frogs, and what not. Other videos you might like:
What to Do When You See a Snake

4 Animals That You Might Find In Your Toilet

What If You Swallowed the Most Venomous Spider
https://youtu.be/Pt75hYV49aw TIMESTAMPS:
How pythons get inside sewers 0:36
They get out in a different place 2:25
Pet snakes that escape 3:46
Snakes falling from trees 5:13
Rats in the sewer pipes 5:37
Other creatures in the sewers 6:08
What should you do if this happens 7:00 #snakes #survivaltips #brightside SUMMARY:
-Driven by the smell of food, a python doesn't notice that the jungle has ended, and human dwellings are all around. There, the snake gets inside the sewer. -Snakes wander around the sewers for a long time, crawl to the source of air and light, out a long S-shaped pipe and see a human. -There was a case when python knocked out the terrarium's roof glass and escaped. Snakes can escape not only from home terrariums but from zoos too.
-There were cases when snakes fell from tree branches directly onto a house's roof or got into an apartment through air vents.
-Rats get into the sewer on purpose: they know there is a lot of good food in your apartment. Sometimes they even manage to get into the kitchen.
-In some countries, such as Australia, funnel-web spiders can enter the sewers. Frogs can easily end up in your bathroom too. Another animal that could theoretically end up in the sewers is an octopus.
-If this is some small creature, like a rat or frog, then wash it off. Thanks to the fat on their fur, though, rats float in the water easily. Also, there are ultrasonic devices that produce a low-frequency sound. People don’t hear it, but it’s making rodents go nuts. Music by Epidemic Sound https://www.epidemicsound.com/ Subscribe to Bright Side : https://goo.gl/rQTJZz
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Do you like to travel? If you answered “yes, of course”, chances are, you spend a good deal of your life up in the air. Planes get you to your destination in not time, driven by life and pure magic. You seem to know them well, but I bet there are some unanswered questions. Find out how can you get a free extra meal on your next flight? What do passengers do to annoy them the most? What am I talking about here? It’s flight attendant secrets and nightmares finally revealed. Stay till the end to find out what they might be calling you behind your back! Alright, here we go. Other videos you might like:
Why Planes Don't Fly Faster

Pilots Reveal 16 Nuances That Make Your Flight Safe

7 Air Travel Tips to Know Before Your Flight
https://youtu.be/0G31tQJdnTQ TIMESTAMPS:
They’re judging you during boarding. 0:23
And one of them is counting you! 0:38
Some passengers take life vests from the plane. 0:56
They’re not kidding when they ask you to turn your electronics off. 1:10
If you use the bathroom before takeoff, they let the pilot know. 1:30
Flight attendants aren't paid to help you lift your bags. 1:49
Their schedule is intense. 2:04
They don’t all know each other. 2:30
You make their job harder by roaming the aisles after takeoff. 2:53
You’re allowed to ask for more food! 3:16
You can get better service in the back of the plane. 3:33
Bottled drinks are your best friends during the flight. 4:02
Flight attendants aren't waiters. 4:21
They aren't your personal butlers either. 4:44
They don’t have ALL the answers. 5:07
They can’t stand when you stick your used napkin in your cup. 5:25
You can open the bathroom door from the outside. 5:41
The cabin isn't the cleanest place in the world. 5:55
Flight attendants know if you use aerosols on board. 6:20
There are rest compartments for the crew. 6:32
They ask you to lift the shades for a reason. 6:48
They can spice things up if they want! 6:59
The crew has their own secret language. 7:20 #flightsecrets #planes #brightside SUMMARY:
-If you're acting a bit off as you get on the plane, they might mark you down as a potentially problematic passenger.
-During boarding, they’re holding a special counter to keep track of how many passengers have boarded!
-If your life vest is missing, it’s probably become a souvenir for a sticky-fingered passenger before you. -If everyone uses their phones, it can seriously interfere with communication between air traffic control and the cockpit!
-The plane won't take off until you're out of the bathroom.
-Flight attendants only get paid for actual flight hours.
-There’s no fixed work week.
-In most cases, the crew only learn who they're flying with right before the trip.
-When passengers choose to stretch their legs or go see a friend in the other row, it starts a traffic jam.
-There are some leftover meals on almost every flight. If you're hungry for more, it never hurts to ask!
-You can normally get the best service in the back of the plane. -The onboard tanks it comes from don't get cleaned that much.
-Their main duty is to assist the captain in keeping things on board safe and acting fast in case of any unexpected situations.
-If you just want a glass of water, you can stretch your legs and go get it. -Don’t use the call button to ask the crew where the plane is flying right now.
-They have to fish napkins out and throw them away separately, and that just wastes their time. -If your kid is stuck inside or something, you just have to lift the lavatory sign and slide the knob into the unlock position.
-The tray tables just get a quick wipe down with one rag for all the rows. -A hair spray or deodorant will set off the alarm if you use it on board.
-Larger airplanes have little hidden rooms for the crew to rest.
-The emergency-exit shades must be up so that the flight attendants can see if it's safe outside before they open the doors. -You can sometimes see flight attendants make it more of a stand-up comedian piece or even dance on board!
-PAX is short for passengers. UM is an Unaccompanied Minor. Preview photo credit: Passengers standing to disembark from an airplane: By ruramos/Depositphotos.com, https://depositphotos.com/273843452/stock-photo-passengers-standing-to-disembark-from.html
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It helps you avoid traffic jams and shows you the way in an unfamiliar city. But is that all GPS is good for? Turns out, it’s used for all kinds of stuff, like feeling earthquakes, finding treasures – it can even save you from a rendezvous with a shark! GPS is so efficient and precise that even people far away from the epicenter can be notified and have enough time to get ready for a big quake or evacuate. Wildlife migration tracking is very important in the conservation of endangered species. GPS is perfect for this goal! GPS is used to monitor your vehicle’s location in real time. Other videos you might like:
How GPS Works Today

7 Brilliant Things You Can Do With Your Smartphone

15 Accidental Inventions You Can't Imagine Your Life Without
https://youtu.be/qO1brxn1rNs TIMESTAMPS:
It can feel an earthquake. 0:26
Farmers use it! 0:46
Robots would be lost without GPS. 1:04
It's used for surveying. 1:27
Volcano observatories make use of it. 1:47
GPS can help save endangered species. 2:19
You can use it for treasure-hunting! 2:46
Artworks are safer with it. 3:05
You can use GPS to make giant works of art! 3:35
GPS analyzes the atmosphere. 4:00
It measures snow levels too. 4:23
It makes weather forecasts more accurate. 4:50
It’s great for tracking pets! 5:12
You can track people too! 5:36
It saves people from sharks! 6:10
You can track your luggage. 6:47
You’ll always know where your vehicle is. 7:06
It works for fishing and hunting. 7:24
It’s useful in mining. 7:44
It could be the key to transport in the future! 8:04 #GPS #interestingfacts #brightside SUMMARY:
-Using advanced GPS receivers, scientists can tell how large and destructive an earthquake will be in a matter of 10 seconds.
-Thanks to GPS receivers, farmers can map their lands and send tractors and other equipment to certain crops for weeding or harvesting.
-Without GPS, robots used in the industrial, agricultural, and mapping spheres wouldn't be able to do their job.
-GPS is a perfect technology for creating high accuracy maps, measuring objects, and monitoring changes. -With time, GPS receivers rise or sink because of magma shifts. If you monitor the changes, you can see where exactly magma is flowing.
-GPS is perfect for wildlife migration tracking because you can get data about the animal's movements remotely through a satellite.
-Geocaching has become a popular hobby since the early 2000s. There are digital treasure maps with clues on where to find caches or trinkets.
-When you attach a tracker to an art piece, thieves will think twice before stealing it.
-Baltimore artist Michael Wallace made his city his canvas. He attached a GPS tracker to his bike, installed mapping software, and moves in intricate patterns creating digital art.
-GPS helps measure the amount of water vapor in the atmosphere that can come out as torrential rains.
-Scientists can learn how much moisture there is in the soil or how much snow there is on the surface using the echoes that bounce off the Earth and go to the GPS receiver.
-There’s hardly enough of the latter in some parts of the world, especially the oceans and polar regions. GPS helps fill that gap.
-Attaching a GPS microchip to your dog or cat's collar can save you a ton of nerves and time in case they chase after something and go missing.
-You can get a tracker in the form of a key chain, pendant, watch, you name it!
-One organization GPS-tagged about 50 sharks living mostly off the East Coast of the US. Once they get too close to the shore, the lifeguards are informed, and they let everyone else know it’s time to get out of the water.
-A GPS tracker can help you locate your suitcase wherever it is.
-GPS is used to monitor your vehicle’s location in real time.
-If you don't want to spend hours looking for that very place using trees or rocks as landmarks, GPS can help.
-Accurate GPS helps guide machines to natural treasures, drill safely, avoid collisions, survey, and manage entire operations.
-Driverless cars work with the help of GPS. Preview photo credit: Visitors take pictures in frront of Mona Lisa after it was returned at its place at the Louvre Museum in Paris on October 7, 2019: By ERIC FEFERBERG/AFP/East News, https://www.eastnews.ru/pictures/picture/id/78694376/i/20/t/127
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I was recently invited to a party. And while I was having fun, I began to think about all the things that make a party a party: Why are all the cups red? And who invented barbecue, dancing, and birthday wishes? It turns out that the first birthday party was in Ancient Egypt in 3000 BCE! Wish-making tradition dates back to Ancient Greece, and in England, coins and jewelry were put into the cake, which was then divided among all the guests. Here’s what else I found out! Other videos you might like:
65 Quick Facts to Make You the Most Interesting Person in The Room

Why Car Tires Are Black and 22 Other Simple Why-s

25 Mind-Blowing Things You've Never Seen
https://youtu.be/NDnu3lLKls4 TIMESTAMPS:
Happy Birthday 0:19
Make a wish 1:42
BBQ 2:57
Snacks 3:50
Red cups 4:43
Pinata 5:32
Dance 6:38
Fireworks 7:24 #party #traditions #brightside SUMMARY:
-The first birthday party was in Ancient Egypt in 3000 BCE. Only the pharaohs and their heirs were allowed to celebrate them. It was the same in Ancient Rome – only the kings and high-ranking officials got a feast on their special day.
-In Ancient Greece, a special pie was brought to the temple for the birthday of Artemis. The pie itself symbolized the moon, and the candles – the light from it.
-BBQ became popular thanks to George Washington in the 18th century! And he learned to BBQ from African Americans.
-In 1853, chef George Crum brought his signature dish to a rich client – french fries. However, the guest didn't like how thick the potato was cut. So, Chef Crum jokingly decided to cut the potatoes into paper thin slices and then fry them.
-In 1970, the American company "Solo Cup" first released its iconic plastic red cups. They instantly became popular with young people. They are red so that you can easily find your drink on the table – the red color stands out. Second, from a psychological point of view, the red color calls for decisiveness and action.
-Pinata-like rituals have appeared in all corners of the planet. But it's believed that it originated from China, where the ancestors of the pinata were paper lanterns and dragons.
-A very long time ago, people didn’t dance because it was fun, but to conduct pagan rites. They even took dance movements from animals.
-The first fireworks appeared in China and looked like this: a bamboo stick was thrown into the fire, bamboo banged loudly and it was believed that this scared away evil ghosts. Music by Epidemic Sound https://www.epidemicsound.com/ Subscribe to Bright Side : https://goo.gl/rQTJZz
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When you hear “airplane” you think of a “big, white, a rounded nose, relatively small tires, two oddly angled wings with their tips curling up, normally late taking off. Oh, and you always get on board through the left side!” But have you ever wondered why is it always the left side? And, why are do the wings have curved tips? Or, why is the entire wing tilted upward instead of being perfectly parallel with the ground? Most airliners have nicely rounded noses, but there are jets with pointy ones – so what decides it? Let’s see! Other videos you might like:
Why Planes Don't Fly Straight

That's Why Airplane Seats Are Almost Always Blue

Why Lights at Plane Wings Are Different
https://youtu.be/MyHUWG4_pXc TIMESTAMPS:
Commercial aircraft usually have their wings angled backward 0:30
Many plane wings have curved tips 0:56
Why is the entire wing tilted upward instead of being perfectly parallel with the ground? 1:38
Why is lift so important? 2:13
Why is landing gear a bit tilted? 2:57
Why are wheels so small they for such a massive machine? 3:22
Why are airplane tires super inflated? 3:49
What are flashing lights on airplane's wings for? 4:08
Why do most planes have rounded noses, but there are jets with pointy ones? 4:35
Why do passengers board on the left? 5:41
Why don't airlines save time by letting people in through all the entrances at once? 6:39
Why can’t you always board a plane through a jet bridge? 7:54 #whyplanes #flightsecrets #brightside SUMMARY:
-Wings angled backward help planes be as fast as they are. -Wingtip vortices lead to slower speeds, more fuel consumption, higher CO2 emission, and safety issues.
-Upward angle is crucial for the airplane's stability. That stability is at risk when a jet comes across some obstacle, like a bump from turbulence, that can make it roll to either side.
-If you tilt the wing too much, the lift will get weaker or disappear altogether! Then the plane will stall in the air and eventually fall. If the wings are tilted down, the lift decreases.
-The tilt serves several purposes: to soften the landing and absorb the touchdown shock, to level the plane and prevent it from pitching forward, and to let the gear fit properly in the gear well. -If you made airplane wheels bigger, it would add extra load, and aircraft would waste more fuel carrying them.
-Thanks to huge pressure inside them (as well as the material they're made of), airplane tires don't burst under the immense weight of a landing aircraft. -The lighting scheme helps pilots figure out the direction of oncoming planes in the dark and avoid a collision. The green and red lights on commercial aircraft must be on from sunset to sunrise. – The faster a plane is, the sharper its nose will be since they need to cut through the air without meeting too much resistance. That's why almost all supersonic aircraft have pointy noses. -The right side is used for fueling the plane and loading and unloading baggage and cargo. If passengers were also entering aircraft from the right side, it would mess up the whole process and probably lead to accidents.
-Some airlines do use both for boarding and deplaning. But if people board an aircraft through a jetway, using both doors won't work. Jetways only reach the front left entrance.
-Some airports are just too busy and don't have enough gates. It's either using buses and mobile stairs or waiting for hours for an available gate. Music by Epidemic Sound https://www.epidemicsound.com/ Subscribe to Bright Side : https://goo.gl/rQTJZz
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You’re walking down the street when you suddenly remember you need to call your bank. Oh no, your phone battery’s at 1%! You look around and here it is: a pay phone booth! And even better, there’s a phone book inside with the number you need. If you were born in the 2000s, you probably haven’t even heard of a fax machine. Photo labs have gone, but not completely – and they still offer their services to those interested. Come to think of it, though, how many other seemingly obsolete things are still out there? And why? Other videos you might like:
Why New Phones Don't Have Home Buttons

Why Phones Don't Have Solar Panels Yet

LIFE: THEN VS. NOW
https://youtu.be/rRnVFMRdZHc TIMESTAMPS:
Fax machines 0:25
Photo labs 1:09
Encyclopedias 1:43
Physical books and bookstores 2:12
VHS tapes 3:00
Photo albums 3:55
Old cell phones 4:32
Pay phones 5:11
Pagers 5:46
Copper pennies 6:34
Vinyl records 7:01
Landlines 7:29 #oldtechnology #obsoletethings #brightside SUMMARY:
-To use a fax machine, you need a printed copy of your document and the recipient has to own another such machine too. Bulky and pretty unreliable, fax machines became a thing of the past in the late 90s.
-Back in the second half of the 20th century, developing films with your vacation photos was all the rage. You had only 24 or 36 photos you could take before your film ended, so you took them carefully and then went to a photo lab to see what you had.
-You can still see paper encyclopedias on the shelves of bookstores — and many people, surprisingly, still use them.
-A bookshop has become not just a joint where you can buy a new novel by your favorite author, but a place to sit back, have a cup of tea or coffee, and relax in a comfortable chair, reading right there.
-Surprisingly, though they’re gone from households, there are still VHS tapes that are incredibly rare and valuable even today. For example, there’s a Star Wars sealed box tape for sale on eBay that costs $3,500.
-Today, with Instagram and digital pictures all around, a photo album seems obsolete, but almost any photographer you ask will offer you to make a photo album of your own.
-Unlike smartphones and tablets, these simple devices are very hard to track, so if you’re worried about being watched, an old cell phone is a really good choice.
-In some distant areas of the world, you’d be stranded without any connection if not for pay phones that are still installed in many countries.
-Pagers were extremely popular at some point in the 90s, but for obvious reasons they soon became outdated and replaced by more versatile mobile phones. However, paramedics and emergency care workers still use them.
-By and large, pennies are next to worthless, but they’re still being widely circulated. The cost of producing a penny is more than it’s actually worth: 1.7 cents for a 1 penny coin.
-Warm quality of sound they give and the feeling of authenticity when listening to the great bands of the 20th century makes lots of audiophiles around the world collect vinyl records and keep them as the treasure they certainly are.
-Many businesses still cling to landlines, and in some countries banks won’t even give you a loan if you don’t own a landline. Music by Epidemic Sound https://www.epidemicsound.com/ Subscribe to Bright Side : https://goo.gl/rQTJZz
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We’ve managed to go hundreds of thousands of miles into space, but when it comes to the earth, we’ve barely scratched the surface. Our planet’s core is a magnificent mystery filled with secrets. It’s time to figure them out. The Earth’s inner core is an extra hot solid ball that has a radius just 30% smaller than the Moon. Scientists figured out that most of the Earth’s mass is located towards the center of our planet. The temperature of the inner core is about 9800°F. While the melting point of pure iron is about 2,800°F, at the core, its melting point is around 11,000° F. Other videos you might like:
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https://youtu.be/gJNF1R4EDnw TIMESTAMPS:
The earth core is super heavy 0:20
How did iron get in there? 1:16
How do we know what size the core is? 2:27
How hot is it and why? 4:32
How does it remain solid? 5:28
Why is the earth still boiling? 5:50
A 2015 study from Durham University 6:53 #earthcore #earthfacts #brightside SUMMARY:
-It’s estimated that the Earth’s mass is 5.6 sextillion tons. More than 80% of the core consists of one of the ten most common elements in our galaxy: iron.
-In 2013, Wendy Mao and her team from Stanford discovered a possible solution for how this happened. During their experiment, molten iron slowly squeezed through the silicate rocks, and they had their answer. It took millions of years for the iron to reach the center, so it happened at a snail’s pace.
-During an earthquake, shockwaves are spread through the planet. Seismologists study these vibrations and try to read the reflections on the other side. As science progressed, it turned out that picky “S-WAVES” could only go through solid material, and not liquid. So something molten was present in the center of the Earth that was preventing the vibrations from going through.
-The temperature of the inner core is about 9800°F. While the melting point of pure iron is about 2,800°F, at the core, its melting point is around 11,000° F. The fluctuation in those temperatures comes from factoring in the extreme pressure the iron is exposed to at the core. -The reason it remains solid is because of the slow cooling of the outer core and its compression. The inner core spins faster than the Earth. That’s caused by the thermal activity inside our planet which creates the magnetosphere.
-The first reason the Earth is still boiling is that the core has remained hot from the time our planet was formed – roughly 4.5 billion years ago. Secondly, it generates heat from the friction of the dense materials as they move. And the last reason it’s so hot is from the decay of radioactive elements.
-A 2015 study from Durham University claimed that 90% of the Earth’s sulfur is in the core. When the impact happened, the Earth’s mantle melted, and some sulfur-rich liquid squeezed through the ruins and reformed it. Some of it was probably lost in space, but the rest sunk to the core. Music by Epidemic Sound https://www.epidemicsound.com/ Subscribe to Bright Side : https://goo.gl/rQTJZz
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