Galalith is a type of plastic that can be made from milk. It is odourless, insoluble in water, biodegradable, anti-allergenic, antistatic, and virtually non-flammable.
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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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Your brain is 80% water.
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Iron weighs more after it rusts.
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A cubic yard of air weighs about 2 pounds at sea level.
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Most dust particles in your house come from dead skin.
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It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
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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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