The bark of an older redwood tree is fireproof.
65
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
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
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57