A cubic yard of air weighs about 2 pounds at sea level.
31
Your brain is 80% water.
525
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
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
The average temperature at 40,000 feet above sea level is -60 F.
56
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
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
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101