Iron weighs more after it rusts.
68
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
One third of the electricity produced on earth is used to power electric light bulbs!
75
In zero gravity, a candle's flame is round and blue.
16
Most dust particles in your house come from dead skin.
48
4.5 pounds of sunlight strike the Earth each day.
27
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55