The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
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Nearly 50% of the world's scientists are assigned to military projects.
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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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Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
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Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
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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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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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Pure water (H2O) does not conduct electricity on its own.
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