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Discussion in 'After Hours Lounge (Off Topic)' started by Mark Fitzsimmons, Jul 3, 2003.
Why is the center of the earth hot?
Because there's a pound of feathers stuck in there.
Because it is surrounded by a crust of Silica, which sucked all the moisture out causing spontaneous uncontrollable conbustion which heats up the salsa......
I'm no geology expert, but it has to do with the pressures of the material above it and the constant shifting masses.
Its just the pressure of the rock above it. Increase pressure and you'll increase temperature.
It is a combination of the pressure and the sun and moons gravitational pull on the core.
The earth was extrememly hot when it had just formed. The center is the only part that hasn't cooled off yet. It probably will cool down evantually but I can't see it happening anytime soon.
Edit: I should add that I made an 85% in grade 12 Geology, so don't debate what I say!
According to my geography knowledge (which i finally finished just a few weeks ago), the center of the earth is hot due to radioactive decay of radioactive materials (duh).
Dang I thought it was caused by all the oil well fires in Iraq
Maybe there's no windows that can be opened?
There's no lake down there to jump in and cool off - it's all beach
MarkHastings' boss is down there.
It has no pores so it cannot sweat
Cause they don't have air conditioning in Toronto?
(or for you americans out there, subsitute New York)
you put yer weeeed in there man.
Planet Earth. Caution: Contents Hot!
ermmm.. ok we have 5 prevailing arguments:
1) Massive pressure of the rock above casues the core to be so hot.
2) Gravity from the sun and moon may be playing a role.
3) Earth was hot as sh*t when it was formed, the core will cool down soon enough.
4) There are radioactive materials down there causing things to heat up.
5) Something about feathers that I STILL don't get.
I think it's safe to choose the default answer which is...
OK, those who say that it's simply still hot there are right. It has nothing to do with pressure or radioactivity.
The earth was formed from debris of the sun (along with the other planets). The outside of our ball of gas cooled a bit more than the inside (by radiation). But don't forget that at the outside, where we live, it is still 273 degrees Kelvin. Not even close to zero.
Here's an article that suggests that the center of the earth is actually an active fission reactor-
The more I think about it, the more compelling it becomes.
Yes, right. When I wrote that sentence, I wondered if someone would call it too absolute a statement. But I tried to say that pressure or a radioactive process wasn't warming the earth up. You're right that it may contribute to a slower cooling down. I wouldn't know how much either.
Your second point is interesting too. I wouldn't know. Would the nickel-iron core stay in place? Perhaps the magnetic field would no longer rotate, but still be there.