A 'jiffy' is an actual unit of time for 1/100th of a second!
66
In zero gravity, a candle's flame is round and blue.
16
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
A cubic yard of air weighs about 2 pounds at sea level.
31
According to studies, men change their minds two to three times more often than women.
72
The smell of freshly cut grass is actually a plant distress call.
31
The average temperature at 40,000 feet above sea level is -60 F.
56
Iron weighs more after it rusts.
68