From the June 2001 Scientific American Magazine | 0 comments
JuneIn a two-ton tank of mineral oil, a pair of mechanical wings
flap continuously back and forth, taking a leisurely five seconds to complete each cycle. Driven by six computer-controlled motors, they set the fluid swirling, a
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Time to Ban Production of Nuclear Weapons MaterialA new global treaty that cuts off production of plutonium and highly enriched uranium for nuclear weapons could jump-start nuclear disarmament and help prevent proliferation
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