Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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Balsa wood is classified as a hard wood!
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In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
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One third of the electricity produced on earth is used to power electric light bulbs!
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One cubic foot of gold weighs more than 1,200 pounds!
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Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
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Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
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Some toothpastes and deodorants contain the same chemicals found in antifreeze.
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