Iron weighs more after it rusts.
68
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
A ball of glass will bounce higher than a ball made of rubber.
73
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38