The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
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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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Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
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One ragweed plant can release as many as one billion grains of pollen!
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A cubic yard of air weighs about 2 pounds at sea level.
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4.5 pounds of sunlight strike the Earth each day.
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Scientists in Germany have developed a candy that doesn't cause cavities.
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There is a surgical implant being developed that will give you an orgasm at the touch of a button.
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