Airports that are at higher altitudes require a longer airstrip due to lower air density.
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A cubic yard of air weighs about 2 pounds at sea level.
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Scientists are now able to grow 'beating' heart tissue in a lab!
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The only letter not appearing on the Periodic Table is the letter "J".
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Balsa wood is classified as a hard wood!
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One cubic foot of gold weighs more than 1,200 pounds!
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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 gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
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