The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
The bark of an older redwood tree is fireproof.
65
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Billions of neutrinos pass unnoticed through your body every second.
6
Most dust particles in your house come from dead skin.
48
Research indicates that plants grow healthier when they are stroked.
173