Balsa wood is classified as a hard wood!
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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.
24
No matter how cold it gets, gasoline will not freeze.
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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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Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
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Scientists in Germany have developed a candy that doesn't cause cavities.
11
A ball of glass will bounce higher than a ball made of rubber.
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Brass doorknobs automatically disinfect themselves in about 8 hours.
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