Iron weighs more after it rusts.
16
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
Cold water weighs more than hot water.
93
Each day, up to 150 species of life become extinct.
-23
Iron weighs more after it rusts.
68
One 75-watt bulb gives more light than three 25-watt bulbs.
57