Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Pumice is the only rock that floats on water.
14
According to studies, men change their minds two to three times more often than women.
72
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Research indicates that plants grow healthier when they are stroked.
173
Each day, up to 150 species of life become extinct.
-23
The earth is approx. 6,588,000,000,000,000,000 tons.
175