On 09/12/15 00:07, dennis@home wrote:
On 08/12/2015 07:04, harry wrote:
On Monday, 7 December 2015 09:58:05 UTC, Dave Liquorice wrote:
On Mon, 7 Dec 2015 00:01:40 -0800 (PST), harry wrote:

Why would you want to keep it apart for millennia?
If its highly radioactive it decays away quickly.
If it doesn't decay away quickly its not very radioactive.

Its simple physics.

No it's not.
Some materials remain dangerous after 100,000 years.

Which?


Are you so brain dead you can't Google for yourself?
https://en.wikipedia.org/wiki/Radioactive_waste


If you actually read that you would notice it carefully avoids giving
any meaningful data. It carefully uses stuff like decays per unit so you
don't know if its very radioactive or if its a tonne of rock radioactive.

So the question stands which ones are still highly radioactive after
100,000 years.

None of course. The most dangerous materials around these days are
radon, which only is dangerous because the very very slow decay of
natural uranium creates radon fleetingly as a step on the process,
towards becoming polonium then bismuth and lead.

lead is dangerous forever, but not because it is radioactive, but
because its are bloody poisonous, like mercury.

Uranium occurs naturally of course.At a half life of half a million
years, there's still some left over from the creation of all the
elements in the nuclear supernovae events that create heavy elements.

And cannot be destroyed except by turning it into nuclear fuel and
burning it. Which is the best way of removing it from the environment.

It represents Natures long term nuclear waste, and it plays a nice part
in keeping the earth a bit warmer than it would otherwise be, as it
decays deep inside the crust and mantle



--
the biggest threat to humanity comes from socialism, which has utterly
diverted our attention away from what really matters to our existential
survival, to indulging in navel gazing and faux moral investigations
into what the world ought to be, whilst we fail utterly to deal with
what it actually is.