Iron weighs more after it rusts.
16
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The earth is approx. 6,588,000,000,000,000,000 tons.
175