A ball of glass will bounce higher than a ball made of rubber.
73
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Sound travels fifteen times faster through steel than through air.
134
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
A cubic yard of air weighs about 2 pounds at sea level.
31
Your brain is 80% water.
525
In zero gravity, a candle's flame is round and blue.
16