First, the crust is a great insulator. Second, the core is a ball of high pressure molten iron, nickel, and radio active elements. Radio active elements help keep the core hot, gravity causes the pressure.

Take a few liquids of different densities and put them in a cup. then watch

>>609986658
magic

>>609987362
None of that makes sense though. Isn't there no gravity at the center of the earth? Without gravity, why is everything dense and hot? I should be the opposite.

>>609986658
science is a communist myth

Magnets

>>609988204
Yes but there is pressure. P=F/A.

>>609988204
Troll harder. Not convincing in the least.

>>609988204
>Isn't there no gravity at the center of the earth?
What makes you think that ?

>>609988204

>no gravity at the center of the earth

The pressure is caused by the weight of the higher levels pressing down, not the force of gravity directly at the core.

>>609988204
because everything above the core is pressing down on it you dumb shit

>>609986658
you know nothing about real science, idiot. Look up where Xenu dumped the Thetans.

>>609988204

Gravity isn't a force that draws things towards the center of the planet and at the center there is nothing pulling. Gravity is a force that every piece of matter exerts on every other piece of matter in the universe. The matter in your hand is pulling on all the atoms that make up mars right now, it's just that the pull is infinitesimally small compared the atoms making up the earth pulling on all your atoms.

>>609986658
Because closer you are to the center, more pressure you get from all the solid matter above.

>>609986658
It doesn't matter either way.

>>609988204
>>609988561
>>609988567
hes not wrong, technically gravity is pulling from all directions in the center of the earth effectively canceling out the gravitational pull, however there are millions of tons of earth around the core that are affected by gravity which are being pulled towards the core which creates and extreme pressure.

>>609988567
The force of gravity is the acceleration a body experiences in a gravitational field which is zero at the earth's center and increases to 9.8m/s*s as you travel to the earth's surface.

>>609987362
Incorrect the core is made of two parts. the outer core made up of dense molten metals. The inner corre made up of solid metals. The amount of pressure keeps the metal at a solid state even though the temperature far exceeds the outer region. The heat of the core is just the remnants of the heat from the original creation of our planet. It is gradually decreasing in temperature and rotation as time goes on. Eventually the core will stop its rotation causing the earths magnetic field to dissipate and bombarding the crust with radiation. Then billions of years after that the dead planet will slowly go cold.

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>>609988906
the volcanoes of Hawaii

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>>609986658
Cause it was all liquid in the past and now it's getting cold, one day it will be a dark, cold and dead geoid, floating across the universe, until a big black hole eat the shit out of it.
And we all will be fucking dead by that time.

>>609986658
The more pressure you apply to something the higher the temperature... as you press molecules together they begin to vibrate rapidly and violently. If they have no place to escape(pressure) extreme ammounts of heat will build.

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>>609986658

>>609986658
Because mitochondria is the powerhouse of the cell.

>>609988204
>Isn't there no gravity at the center of the earth?
I went to community college before university, so I'm going to take this question seriously instead of assuming troll. There is gravity in the center of the earth, in fact that's part of why it's so hot. The amount of mass at the core of the earth is a staggering amount and it is incredibly densely packed, so the friction of this density combined with other factors is what makes it so hot.

The orbit of the moon causes constant cracking in the Earths crust. This generates heat that transfers to the core, which is already hot do the immense pressure cause by the weight of the earth.

Gravity pulls all of earths matter to together causing pressure amongst it's composition. Due to F=m•a and P=F/a as you get closer to the core, all the matter behind you causes greater and greater pressure.

Because how closer to the center how more dense and close the atoms are positioned towards each other. This causes the molecules to move alot more and cause fiction. The friction makes the molecules really hot and it can finally turn into lava.

>>609989655
>>609989454
too late mate, you done fucked up

Matter displacing space makes everything push towards the center creating friction and resulting in heat. Closer to the center the more mass.

>>609986658
Because it needs to be.

The closer you get to the core of the earth.
The farer away you are from the cold universe, which cools everything down.
Same goes for the denseness.
The closer to the center the farer away from the 0G of the universe which lets particles fly all over the place and so pushes them apart.

>>609989842
Yes, but how can it turn into fire without a spark? You dumbfuck.

>>609990764
But then why is the sun hotter then the core of the earth?

>>609986658
That is the way god made it you fucking faggot learn to bible

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If there is gravity in the center of the Earth, then where would you fall?

>>609989625
Underrated post

>>609991025
fusion

>>609990764
that shit is worse than medieval phisics, get the fuck out

>>609990782
Troll bait but ill still bite for the fuck of it. High friction can achieve temperature required for combustion. Just like rubbing sticks together long enough can create fire with no spark needed.

>>609991257
THAN not THEN you illiterate fucktard.

>>609991596
But you need something like gasoline to light it right? Just wood alone cant create fire dipshit.

>>609991025
Well the sun is a nuclear reactor. Nuclear fusion of hydrogen creates continuous immense heat. The core of our earth is roughly 5,000 kelvin as is the surface temp of the sun.

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>>609992131

>>609992131
Cavemen did not have gasoline. No utensils to create sparks. They used wood tools rubbed together at high rates of speed to create embers which could ignite grass. I guess you could consider the ember to be a spark. still bad troll bait though.

>>609992131
>confirmed troll, don't even know why i am trying.
no you do not need an gasoline, all you need to do is heat the material to it's ignition temperature and it will begin to combust

>>609986658
Thermodynamics.

>>609992862
She's actually an alright potato.

>>609992604
but I heard you need air for combustion. Where do you get air in the center of the earth?

>>609986658
because god just pulled the earth out of the oven. 7 days-7000 years. you do the math. ever eat a pizza fresh from the oven? smells great!

>>609991748
"Than" is a comparison between two things ex: "You're dumber than shit".

>>609992604
>>609992549
Have you ever seen a tree starting to fire up for no fucking reason? Ofcourse not you stupid retards. Atleast try and send me some fake scientific article about it or something. You guys are obviously trollin.

Link dead

your mother's nigger pussy

Oil and water in a cup. Similar principle.

Throw in a great deal of pressure added on top of the cup, as well as a large temperature difference and you have the engine/mechanism necessary to produce the convective flow. This helps expedite the entire process of material/heat transport.

>>609993102
Occasionally there's a deep hole.
Not exactly down to the center, but deep enough for shit to combust.. or flow out and combust people on the surface.

>>609993052
I would potato her

>>609993510
Shut the fuck up about my mother before i find out what your IP adress is and DDoS you.

>>609993102
Not only air, just any form of oxygen.

>>609993048
Fuck me, look at Sadi Carnot over here.

Stop making us all look so bad with your meaningful contribution to the question.

>>609993102
at the level of friction a human is capable to do, we need something flamable like oxigen, but at higher level everything can burn

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it's just like the inside of your head, its really dense with mostly bone matter and full of hot air. because you're stupid. /thread.

>>609993449
Lightning strikes work just fine.
That's electricity + wood.
More precisely: ohmic heating.

It works on people, too, the can burn after being struck by lightning.
Science 10 : copypasta ???

The core ist not hot because of gravity or pressure, it is a common miconception. Actually it is because of friction. You can imagine it like a rubber band getting stretched over and over, it gets hot.

>>609993828
Air, like oxygen, can't create enough pressure for it to combust.

>>609993102
You do not need Oxygen for combustion. You just need an oxidizer. It turns out that combustion requires the fuel to be oxidized, that is, it donates electrons. So we need something to accept the electrons, and that's the oxidizer, which is then reduced.

Many elements can act as oxidizers at extremely high temperatures.

>>609993828
>>609994181
Stuff does not burn without oxygen.
Although shit like autolysis happens.

>>609993868
Your mom is dense with mostly bone matter.

>>609986658
Boyles' Law

Temperature, and pressure are directly related. the higher the pressure, the greater the temperature.

So, the earth 5 miles down is warm, because of the weight of 5 miles of rock pressing down on it. at 50 miles, the pressure is so great, things start to become red-hot. and the deeper you go, the more pressure is pushing down on it from above. So even when you get to the middle, where gravity itself is negligible, you have vast pressures. - the boundary between outer and inner core is 330-360 gigapascals - 3+ million times the pressure we live under on the surface.

>>609993640
kind of like your mom's vagina

>>609994181
Thats not entirely true, because when the pressure gets really high. The oxygen molecules get even more close to each other causing the oxygen to explode.

>>609993640
>>609993769

See >>609994442

>>609986658
Better question is why is there gravity?

>>609994442
or
>>609994533

i said it before science is a communist myth

>>609986658
it isn't a gas?

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>>609994847