It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
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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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Brass doorknobs automatically disinfect themselves in about 8 hours.
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There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
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The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
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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Nearly 50% of the world's scientists are assigned to military projects.
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