Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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For every gallon of sea water, you get more than a quarter pound of salt.
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The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
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A ball of glass will bounce higher than a ball made of rubber.
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One barrel of petroleum holds 42 gallons.
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When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
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Most dust particles in your house come from dead skin.
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Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
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