If the chemical sodium is dropped into water it will immediately and violently explode.
67
Nearly 50% of the world's scientists are assigned to military projects.
71
Nylon is made from coal and petroleum.
42
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Most dust particles in your house are made from dead skin!
67
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9