A cesium atom in an atomic clock beats over nine billion times a second.
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Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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Nearly 50% of the world's scientists are assigned to military projects.
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Balsa wood is classified as a hard wood!
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In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
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One 75-watt bulb gives more light than three 25-watt bulbs.
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