daily timewaster
Non veni pacem mittere, sed gladium.
Sunday, June 26, 2016
Looks dangerous
Mars rover
Curiosity's 4.8 kg of Plutonium-238 dioxide glowing its graphite container red hot. Heat given off by the decay of this isotope is converted into electric voltage by thermocouples, providing constant power during all seasons and through the day and night.
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