Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
Your brain is 80% water.
525
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
Aluminum used to be more valuable than gold!
84
The bark of an older redwood tree is fireproof.
65
Billions of neutrinos pass unnoticed through your body every second.
6
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55