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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A cubic yard of air weighs about 2 pounds at sea level.
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Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
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Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Airports that are at higher altitudes require a longer airstrip due to lower air density.
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One cubic foot of gold weighs more than 1,200 pounds!
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Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
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