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Friday, August 10, 2012

Mass Prosperity or Mass Destruction

Yesterday was the 67th anniversary of the atomic bombing of Nagasaki by the United States during WWII, August 9th, 1945.  The bomb was named "Fat Man" and used plutonium 239 produced in reactors at the Hanford site, in Washington State.
Though plutonium 239 is an element, with a half life of 24,000 years, none of it still exists from the creation of the universe.  Hence, it had to be made from uranium 238 in a nuclear reactor.  The uranium 238 absorbs a neutron and becomes plutonium 239.

Fat Man killed 80,000 people and destroyed virtually the entire city of Nagasaki.

Contrast that with the landing of the Curiosity Rover on the surface of Mars on Monday. 
Curiosity is the size of a Hummer and weighs 2,000 pounds and guess what is it powered by? Plutonium!, but not the fissionable kind, a different isotope, plutonium 238.

This isotope is also made in a nuclear reactor, but the beauty of this element is that it radioactively decays so quickly, that it releases enough heat to glow red hot.  This heat is harnessed in thermoelectric generators to provide electric power for Curiosity.  These generators provide 125 watts of electricity, day or night for years.  However, after about 14 years the electricity produced will decline to about 100 watts due to the decay of the plutonium.  I would like some batteries like that!

Thus, plutonium can be used for weapons of mass destruction, or it can be used for scientific exploration or for producing abundant, clean and limitless power for humankind.

The choice is ours, mass destruction or mass prosperity.  Though the decision was previously made by "America's Greatest Generation" in favor mass destruction, we can and should make our own decision, but it should be informed.  This is the reason that I blog, to show the world that abundant, clean, limitless power is available through the fissioning of thorium, plutonium, and uranium in molten salt reactors.



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