Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Pumice is the only rock that floats on water.
14
Most dust particles in your house come from dead skin.
48
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
The bark of an older redwood tree is fireproof.
65
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0