Balsa wood is classified as a hard wood!
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4.5 pounds of sunlight strike the Earth each day.
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The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
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Diamonds can be shattered with a hammer.
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One barrel of petroleum holds 42 gallons.
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Brass doorknobs automatically disinfect themselves in about 8 hours.
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Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
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