Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
4.5 pounds of sunlight strike the Earth each day.
27
Pumice is the only rock that floats on water.
14
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Iron weighs more after it rusts.
16
Billions of neutrinos pass unnoticed through your body every second.
6