A cubic yard of air weighs about 2 pounds at sea level.
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Sound travels about 4 times faster in water than in air.
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Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
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There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
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Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
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Scientists in Germany have developed a candy that doesn't cause cavities.
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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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