Earths Circumference.

So how does RE account for the fact that the earths core is several thousand times hotter than the surface?

So how does RE account for the fact that the earths core is several thousand times hotter than the surface?

For ten years, geophysicist J. Marvin Herndon has presented increasingly persuasive evidence that at the very centre of the Earth, within the inner core, there exists a five mile in diameter sphere of uranium which acts as a natural nuclear reactor.

I guess RE'ers could use the quantum argument:
ie, it is only very probable that the sun would heat the surface and not the core, we are just very lucky
ie, until the core is directly observed...

Quote from: narcberry on May 27, 2008, 07:26:51 PM

So how does RE account for the fact that the earths core is several thousand times hotter than the surface?

Perhaps nuclear fission of Uranium trapped in the earth's core?

http://www.spacedaily.com/news/earth-03k.html

Quote from: http://www.spacedaily.com/news/earth-03k.html

For ten years, geophysicist J. Marvin Herndon has presented increasingly persuasive evidence that at the very centre of the Earth, within the inner core, there exists a five mile in diameter sphere of uranium which acts as a natural nuclear reactor.

Proof? No, hypothesis. You're pretty bold about the guesswork of someone called Marvin who isn't even a Martian?

Flat things don't have a "core", and who said it was, even if it did exist?

Yeah. Sucks talking to you too. Answer the question.

There can be a core.

A post a long while back had one imagine a spool standing on its side. The top portion of the spool would be the flat surface in which we reside. The core would be in the middle of the spool, and the lines would extend out over the top portion.

That wasn't the question.

Why does it have to be hot, anyway?

So your earth doesn't have a core anymore?

The earth is divided into four main layers: the inner core, outer core, mantle, and crust. The core is composed mostly of iron (Fe) and is so hot that the outer core is molten, with about 10% sulphur (S). The inner core is under such extreme pressure that it remains solid. Most of the Earth's mass is in the mantle, which is composed of iron (Fe), magnesium (Mg), aluminum (Al), silicon (Si), and oxygen (O) silicate compounds. At over 1000 degrees C, the mantle is solid but can deform slowly in a plastic manner. The crust is much thinner than any of the other layers, and is composed of the least dense calcium (Ca) and sodium (Na) aluminum-silicate minerals. Being relatively cold, the crust is rocky and brittle, so it can fracture in earthquakes.