The bark of an older redwood tree is fireproof.
65
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
A cubic yard of air weighs about 2 pounds at sea level.
31
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
Research indicates that plants grow healthier when they are stroked.
173
Nearly 50% of the world's scientists are assigned to military projects.
71
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9