/sci/ - Science & Math

>>2112485
>Earth
>star

If only something was providing us with nonstop energy....

>>2112490
an iron star also, radioactivity.

Inner core is radioactive, it's full of Uranium

>>2112506
>it's full of Uranium

I don't think anybody has been to that place to prove this claim

>>2112513

I have, on my trip to china.

The core is very radioactive, which puts out most of the heat and keeps the earth from cooling down.

http://en.wikipedia.org/wiki/Natural_nuclear_fission_reactor

>>2112485
>>2112506
>>2112551
>>2112573
No.
The earth's core is heated by tidal forces from the sun.

>>2112577
Citation needed.

this is actually a still a relatively unsolved problem in physics is has roots in Dynamo theory which has to do with how a rotating convecting, electrically conducting fluid can maintain an very large magnetic field over an almost infinite life span. it would be nice to have some real answers to this question.

>>2112485
>>2112577
>>2112577
Yeah nevermind I found another website, the heating in fact does come from radioactive isotopes, but not only uranium.

>bazillions

universe is ~14billion. I have no idea when the Earth is suggested to have "formed".

Wait... do you fissionfags mean simple thermodymanics do NOT give us a clear answer to that?

I thought it was like: space dust collapses into a planet, pressure caused by its own gravity reduces the volume and increases the heat or something like that and our maths calculate it's AWWWWRIGHT!

Have I been lied to?

>>2112680
prevalaint estimations between 6 and 4,5 billions for the current state (big flamming ball with a solid crunchy crust on the outside)

CAPTCHA: could taster

>>2112485

Because the Earth's crust is a pretty damn good insulator.
inb4[Citation needed]:

The temperature of the Earth's core is decreasing as we speak. The cooling has continued for 4,6 billion years already, ever since Earth cooled down to a solid geoid. Geologists estimate that the current temp. of the core is 3500-6000°c; hot enough for parts of the core and mantle to be liquid, or at least soft enough to be in constant motion. The convections of rock mass in the mantle move the tectonic plates floating on it which in turn results in volcanoes and earthquakes.

In time the Earth's internal working will indeed cool down and congeal. Scientists estimate this to happen in roughly 5 billion years, an event with likely no significant effect because by then the Sun has become a red giant and possibly engulfed Earth.

The cooling is slow and keeps getting slower all the time, because the Earth's crust is a powerful insulator. The surface of the Earth receives 20 000 times the thermal energy from the Sun than from the core. Also as the mantle cools down, the crust gets thicker and boosting the insulation further.

I just translated and typed that out from a Finnish science magazine. I rest my case.

>>2112710
>I just translated and typed that out from a Finnish science magazine. I rest my case.
>Finnish
Your socialist pseudo-science disgusts me.

Everybody knows that Jesus keeps the Earth warm with his infinite love.

The Earth is only 6000 years old. It still has enough fuel to go another 6000.

>>2112768
....

>>2112485
Heat is also created from the movement of layers the earth consists of.

>>2112698

Yes, you've been lied to. It's one of those great pubic misconceptions that the earth's interior is hot because it's "under pressure." Or because of the way in which it condensed.

Now there was some heat that was left over from when it formed. But it would only have lasted a few thousand years.

It's all fission.

>>2112804

[citation needed]

bump

hollow earth motherfuckers

The Earth's core is still hot because of residual heating and radioactive decay.

lrn2science

Motherfucking thorium, bitch.

yeah keep arguing you "theories" science fags.

Scientists in siberia drilled down and heard screaming voices. hell is why the center of the earth is hot, like christianity predicted millenia ago.

http://theologicalscribbles.blogspot.com/2008/10/hell-found-by-geologists-in-siberia.html
http://www.amightywind.com/hell/aboutsounds.htm

>>2113762
thats pretty neat, why did they punch holes in the thorium?

Because Allah wants so.

>>2113821
>screaming voices
>audio just sounds like lots of people talking (eg: a conference) rather than screaming

Do people even listen to the sound clip before they just blindly accept the spooky story?

>>2113829

That's thorium ribbon. I don't know why they punched holes in that sample. Maybe so it can run through some kind of belt or gear system, for reasons unknown.

>>2113821
>hell

Sounds scientific.