Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Indoor pollution is 10 times more toxic than outdoor pollution.
62
The storage capacity of human brain exceeds 4 Terrabytes.
140
Iron weighs more after it rusts.
16
The bark of an older redwood tree is fireproof.
65
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199