Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
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Because heat expands the metal, the Eiffel Tower always leans away from the sun.
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Dr.Jonas Salk, the man who came up with the cure for polio, didn’t patent the drug. This made the drug more affordable to the general public, and he lost out an an estimated $7 billion dollars for himself.
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The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
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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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The force of a suction cup is calculated using F=AP.
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One gallon of used motor oil can ruin approximately one million gallons of fresh water!
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