Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
According to studies, men change their minds two to three times more often than women.
72
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.
16
The average temperature at 40,000 feet above sea level is -60 F.
56
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7