Martin Brown wrote:
Bill Hayward wrote:

Col wrote:
"Bill Hayward" wrote in message
...

http://nujournal.net/core.pdf

What a load of rubbish!
The Earth has been far warmer in the past and it didn't explode.

Col

My understanding of the article is that it is the temperature of the
planet's core that is the cause for concern. The Earth may have been
warmer in the past but we do not know how warm the core was.


We can be pretty well assured that the Earth's deep core has always been
warmer in the past. The Earth is very gradually cooling down from its
originally molten state. The fact that it has not already long since
solidified is because of radioactive decay of various long lived
isotopes providing some internal heating. Their decay half lives mean
that there is less radioactive heating occurring in the core now than in
the past. And it is nothing remotely like a nuclear chain reaction.

snip

From my understanding the Earth's core is like a electro-magnetic
generator, that's why the Earth has a magnetic field.

So I agreed with Col and Martin, the article in question is complete
rubbish !

Joe
Wolverhamtpon