Iron weighs more after it rusts.
68
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
In zero gravity, a candle's flame is round and blue.
16
There is a surgical implant being developed that will give you an orgasm at the touch of a button.
20
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Sound travels fifteen times faster through steel than through air.
134
The smell of freshly cut grass is actually a plant distress call.
31