All Humans Are 99.9% Genetically Identical and 98.4% of human genes are the same as the genes of a chimpanzee.
51
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
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
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Diamonds can be shattered with a hammer.
-104