Nearly 50% of the world's scientists are assigned to military projects.
71
One cubic foot of gold weighs more than 1,200 pounds!
78
Iron weighs more after it rusts.
68
A ball of glass will bounce higher than a ball made of rubber.
73
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
One 75-watt bulb gives more light than three 25-watt bulbs.
57
For every gallon of sea water, you get more than a quarter pound of salt.
45