In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
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German chemists made a replica of a trophy the size of one molecule.
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Optical illusions occur when what the eyes see conflicts with what the brain expects.
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During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
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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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Diamonds can be shattered with a hammer.
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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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