The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
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Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
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A 'jiffy' is an actual unit of time for 1/100th of a second!
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The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
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Sound travels fifteen times faster through steel than through air.
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Aluminum used to be more valuable than gold!
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