Sound travels fifteen times faster through steel than through air.
134
The average temperature at 40,000 feet above sea level is -60 F.
56
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.
6
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
According to studies, men change their minds two to three times more often than women.
72
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
All Humans Are 99.9% Genetically Identical and 98.4% of human genes are the same as the genes of a chimpanzee.
51
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101