Nearly 50% of the world's scientists are assigned to military projects.
71
According to studies, men change their minds two to three times more often than women.
72
The bark of an older redwood tree is fireproof.
65
Diamonds can be shattered with a hammer.
-104
Billions of neutrinos pass unnoticed through your body every second.
6
The average temperature at 40,000 feet above sea level is -60 F.
56
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65