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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The bark of an older redwood tree is fireproof.
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When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
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Scientists are working on a portable spray-on-skin that can heal severe wounds in just a few minutes.The spray mainly contains important proteins that can reprogram the injured cells to become stem cells, and back to young uniformed skin cells. So far they were able to accelerate healing process from 12 weeks to 21 days with a similar approach.
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Brass doorknobs automatically disinfect themselves in about 8 hours.
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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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One gallon of used motor oil can ruin approximately one million gallons of fresh water!
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Indoor pollution is 10 times more toxic than outdoor pollution.
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