Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
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At room temperature, the average air molecule travels at the speed of a rifle bullet.
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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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A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
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Cold water weighs more than hot water.
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Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
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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