Balsa wood is classified as a hard wood!
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Brass doorknobs automatically disinfect themselves in about 8 hours.
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Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
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The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
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Neanderthal man had a brain capacity 100cc larger than modern man's.
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German chemists made a replica of a trophy the size of one molecule.
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Aluminum used to be more valuable than gold!
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During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
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