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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Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
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At room temperature, the average air molecule travels at the speed of a rifle bullet.
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German chemists made a replica of a trophy the size of one molecule.
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Scientists in Germany have developed a candy that doesn't cause cavities.
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