Sound travels about 4 times faster in water than in air.
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Scientists are now able to grow 'beating' heart tissue in a lab!
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Brass doorknobs automatically disinfect themselves in about 8 hours.
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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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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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Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
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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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