How does the core of the Earth remain so hot?

Question

Where does its energy come from? To maintain all that heat?

Answer 1

The earth's core is hot due to radiogenic heat - natural radioactive decay of several radioactive elements, mainly uranium with isotopes of 235 and 238. The heat is constantly generated, and is "insulated" by the mass of the earth itself. The earth is actually a very large natural nuclear reactor.

And a small correction to another answer - pressure definitely causes heat during the compression process. But you are right, once it is in a steady state of compression, the heat will return to a static state.

Answer 2

The energy comes from radioactive decay from the matter that is part of the Earth's core. Also, heat energy was trapped in the core when the Earth was created and has remained there ever since.The heat is radiated through the crust of the Earth, but the core remains hot as the radioactive decay continues. For more information, go to http://en.wikipedia.org/wiki/Earth's_core

Answer 3

Hi

The reason that the Earth's core is so hot is due to the radioactive elements that sank down there during the earth formation. Originally the heat came from when the Earth was being formed by gravitational attraction by the collisions of asteroids. So that everything from the core to the surface was molten material until gases were released and our atmosphere was born. when it got big and dense enough for liquid water to form. It started to rain and as soon as it hit the molten surface it it turn back into water vapor and when it hit the upper atmosphere again.

It became rain again, taking a little bit of the heat with it in the process. On and on this went on for eons until finally it cooled the surface to a solid state and water could exist on the surface and then the water start going deeper into ground until it could not go any deeper. During the eons this was going on. The heavier elements like iron, nickel and radioactive elements sank to the core by gravity push them there. When enough radioactive elements got to together in a great amount. heat was generated and it been driving the core of our planet ever since . There no danger of our planet exploding like the fictional planet of Krypton in the story of Superman. there is not enough of the heavy radioactive elements to do that but their is enough to keep the core very hot for a very long time

I hope this answer your question

Answer 4

The earth is heated by the aetheric force that comes into our cymatic grid and flows to the earth as a ground. The previous answers do not stand up to any proper logic test. The sun continually provides the aether and the ground grid heats the magma.If the previous answerers would just pay some attention to sun spot activity and the current anomalous situation with the extra storms and notice that there is more volcanic activity,they just might see the correlation to the suns energy and volcanic activity which is earths expanded magma release mechanism.Quite simple really

Answer 5

Just for the record, pressure does not cause heat. Why are your water pipes not hot? They are full of pressurized water.

The ACTION to compress something causes heat through an adiabatic process. But once it has been compressed, no further heat is created while it is held at pressure. Thus, the pressure being exerted on the core does not keep it hot, or add any heat to it's already hot condition.

Answer 6

pressure, there is a lot of weight pushing down on the core which drives up the temperature. simple chemistry. the energy comes from gravity which in term is caused by mass. So basically, just because earth is there and it is soooo big, the core gets hot.

Answer 7

All the pressure of the everything around it, thats why the center is so hot but is still a solid mass. Also radioactive elements near the core.

Answer 8

Two Mexicans named Juan and Pablo were hired to shovel coal on the flames and keep it going. They are paid less than minimum wage.

Answer 9

the presure of everything on top of it

Answer 10

compression.