Scientists are now able to grow 'beating' heart tissue in a lab!
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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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The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
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Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
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One third of the electricity produced on earth is used to power electric light bulbs!
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4.5 pounds of sunlight strike the Earth each day.
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