In zero gravity, a candle's flame is round and blue.
16
Most dust particles in your house are made from dead skin!
67
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The force of a suction cup is calculated using F=AP.
15
Sound travels fifteen times faster through steel than through air.
134
The average home creates more pollution than does the average car.
33
One cubic foot of gold weighs more than 1,200 pounds!
78