Quote:
Originally Posted by Dondilion
With respect to radioactive material: The time it takes to lose half its mass due to radioactive decay.
Plutonium is deadly..is for the most part man made, did not exist in any meaningful quantity before 1944, is a by product of nuclear reaction and has many isotopes one of which has an half life of 80.8 million years. 
We really f--ked mother earth.
http://en.wikipedia.org/wiki/Plutonium |
Given recent weather patterns she may well be getting even.
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