Caesium is an alkali metal and has physical and chemical properties similar to those of rubidium and potassium. The metal is extremely reactive and pyrophoric, reacting with water even at −116 °C (−177... continue reading
posted by Mordhaus5 years 7 months 1 week ago • 716 views • 7:36
"When a science-mad A.I. system (voiced by GLaDOS actress Ellen McLain) is installed at NASA, two hapless computer technicians learn the process behind nuclear fusion in the Sun, and how it differs from fission..."
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posted by ant8 years 7 months ago • 84 views • 9:00