Skip to comments.The Enigma 1,800 Miles Below Us
Posted on 05/30/2012 9:29:52 AM PDT by JerseyanExile
As if the inside story of our planet werent already the ultimate potboiler, a host of new findings has just turned the heat up past Stygian.
Geologists have long known that Earths core, some 1,800 miles beneath our feet, is a dense, chemically doped ball of iron roughly the size of Mars and every bit as alien. Its a place where pressures bear down with the weight of 3.5 million atmospheres, like 3.5 million skies falling at once on your head, and where temperatures reach 10,000 degrees Fahrenheit as hot as the surface of the Sun. Its a place where the term ironclad agreement has no meaning, since iron cant even agree with itself on what form to take. Its a fluid, its a solid, its twisting and spiraling like liquid confetti.
Now it turns out that existing models of the core, for all their drama, may not be dramatic enough. Reporting recently in the journal Nature, Dario Alfè of University College London and his colleagues presented evidence that iron in the outer layers of the core is frittering away heat through the wasteful process called conduction at two to three times the rate of previous estimates.
The theoretical consequences of this discrepancy are far-reaching. The scientists say something else must be going on in Earths depths to account for the missing thermal energy in their calculations. They and others offer these possibilities:
¶ The core holds a much bigger stash of radioactive material than anyone had suspected, and its decay is giving off heat.
¶ The iron of the innermost core is solidifying at a startlingly fast clip and releasing the latent heat of crystallization in the process.
(Excerpt) Read more at nytimes.com ...
Since they haven't actually measured this, how do they know?
Stop the World...........I wanna get off;)!!!!!!!!!!!!!!
But a Nobel Prize winning scientist assured us three years ago that the earth's Interior is 'Extremely Hot, Several Million Degrees'. How did our planet manage to cool so much despite global warming?
Well, we now have another Winner as our president! This was the moment when the rise of the oceans began to slow and our planet began to heal.
Gee thanks, Nat. Us yokels didn't know what the unit known as an atmosphere was. Except your analogy is flawed, since we're talking about mostly static pressure, not dynamic pressure i.e. the kind that would result from motion, falling, a collision, etc.
No wonder the Times' corrections page is so active.
The earth is hollow!
Read it here on FR!
Here's what it looks like:
In that pic, he looks like he’s half-way morphed into Rodney Dangerfield
Is that “small entrance” at the bottom of the illustration the hole through which they give the Earth its Enigma?
OK ... that makes more sense than 0bmamcare, and has vastly more factual basis to support it than does the idea that 0bamacare will make our lives better.
Don’t tell Bawney Fwank about that small entrance at the bottom ...
Where is the, “We’re all gonna die!” cartoon.
Other things are much more important and we maybe able to actually DO something about them.
This is probably balderdash and certainly a waste of time.
Maybe interesting but a waste of time.
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