Balsa wood is classified as a hard wood!
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The hair of an adult man or woman can stretch 25 percent of its length without breaking.
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Research indicates that plants grow healthier when they are stroked.
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In zero gravity, a candle's flame is round and blue.
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Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
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One 75-watt bulb gives more light than three 25-watt bulbs.
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The average temperature at 40,000 feet above sea level is -60 F.
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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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