Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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German chemists made a replica of a trophy the size of one molecule.
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Because heat expands the metal, the Eiffel Tower always leans away from the sun.
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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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If you blowtorch Pepto-Bismol, you would get a hunk of metal.
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Iron weighs more after it rusts.
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Brass doorknobs automatically disinfect themselves in about 8 hours.
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Scientists in Germany have developed a candy that doesn't cause cavities.
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