Iron weighs more after it rusts.
68
In zero gravity, a candle's flame is round and blue.
16
The average temperature at 40,000 feet above sea level is -60 F.
56
No matter how cold it gets, gasoline will not freeze.
107
Aluminum used to be more valuable than gold!
84
Sound travels about 4 times faster in water than in air.
408
German scientists claim to have evidence that suggests that our universe may exist inside of a computer simulated Matrix.
18
Sound travels fifteen times faster through steel than through air.
134