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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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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Sound travels about 4 times faster in water than in air.
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Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
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There is a surgical implant being developed that will give you an orgasm at the touch of a button.
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The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
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