In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
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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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Neanderthal man had a brain capacity 100cc larger than modern man's.
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Optical illusions occur when what the eyes see conflicts with what the brain expects.
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4.5 pounds of sunlight strike the Earth each day.
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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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For a high school science fair project, 17-year-old Michio Kaku built a particle accelerator in his parent's garage that was able to generate a magnetic field 20,000 times greater than the Earth's and produce collisions powerful enough to create antimatter.
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