Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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Iron weighs more after it rusts.
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The earth is approx. 6,588,000,000,000,000,000 tons.
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Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
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Scientists are attempting to create a synthetic brain by reverse-engineering the mammalian brain down to the molecular level. A cellular human brain is predicted possible by 2023. It hopes to shed light on consciousness.
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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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