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 Earth's atmosphere weighs about 5.5 quadrillion tons.
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Scientists aren't sure what color dinosaurs were.
312
Most liquid laundry detergents are alive with living organisms that help to break down stains!
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Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
One 75-watt bulb gives more light than three 25-watt bulbs.
57
One third of the electricity produced on earth is used to power electric light bulbs!
75