This is true. The Earth contains a lot of uranium some of which is fissionable and fission releases heat. This effect would've been more prominent in Earth's early history when the fissionable uranium was much more abundant. There is even evidence that sustainable fission reactions were taking place in there ore deposits check the link.True or False: Some of the internal heat in the Earth is created by radioactive decay.?
absolutely true
'; Power source of the Earth's core
The core of the Earth is still hot because it contains radioactive uranium which was derived from a local supernova explosion before the earth formed. It is the heat produced by radioactive decay that has prevented the Earth's core from cooling and solidifying[citation needed]. Heat sources include gravitational energy released by the compression of the core, gravitational energy released by the rejection of light elements (probably S, O, or Si) at the inner core boundary as it grows, latent heat of crystallization at the inner core boundary, and radioactivity of K or U.';
Here is my take on astrophysics and how the earth was formed etc.
First, , the Sun is a nuclear reaction .
The Earth was a nuclear reaction the same way.
The Sun will turn into a planet a little bigger than the earth
Getting the picture?
It is a life and death cycle.
Energy to matter , matter to energy
So the Earth was a Star and is now at the stage of its life where there is just molten material in the core . Dig down about 30 miles and you hit lava . Dig down about 1000 miles and you find gold
Well , not all gold , sorry to say, but all the heavy metals. Plutonium , Strontium , Uranium etc. at the central area .
So you see we are floating on a metal Ingot .
The crust of which is about as thick as an egg. Earth is 8000 miles in diameter remember.
Now as a metal Ingot cools it hardens at the crust and shrinks causing the crust to crack and fold like a grape changes to a raisin.
Mountains , Ocean trenches , Volcanoes , Earthquakes , Geysers , are all effects of the shrinking forces.
The Moon is much smaller and has completely hardened with the heavy metals at its core off to one side . So it is locked in to face the gravity of earth and doesn't rotate . Thats why the man in the moon is always looking at you .
As for your question .
There is many radioactive materials on the surface , like Radium, Uranium , and other Isotopes . Even radioactive Carbon is used to date Organic material . So you have radioactive elements in your body.
Knowing this , and the concept that the Earth was a Star in its youth,
It is easy to understand if there is relatively high radioactivity around Volcanoes , as one of the Answers confidently suggest .
Looking at the original Question , , , Maybe I have created more !!
Sorry.
I would say there is surely radioactivity present but the heat created by the slow process of radioactive decay would be extremely small .
The net effect is the earth is elderly, and continuing to cool as it has been for the last 4 billion years . If my memory serves me correctly. I was quite young at the time.
False.
No atomic bomb would ever get close enough to the earth's core to heat the ENTIRE planet. the sun's radioactive rays have a greater effect on temperature than anything the U.S or Iraq or Russia can drop on someone.
All of it is created by radioactivity.
May not be true. Earth was burning like Sun billions of years ago. It started cooling and reached to the current stage that its crux is still hot.
Due to the fact that radiation levels are higher around volcanoes, I'd say true.
False
No comments:
Post a Comment