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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4.5 pounds of sunlight strike the Earth each day.
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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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Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
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Optical illusions occur when what the eyes see conflicts with what the brain expects.
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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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