Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Hot water can freeze faster than cold water.
181
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
Sound at the right vibration can bore holes through a solid object.
134
Brass doorknobs automatically disinfect themselves in about 8 hours.
18