A cubic yard of air weighs about 2 pounds at sea level.
31
Pumice is the only rock that floats on water.
14
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
Balsa wood is classified as a hard wood!
41
Iron weighs more after it rusts.
16
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
For a high school science fair project, 17-year-old Michio Kaku built a particle accelerator in his parent's garage that was able to generate a magnetic field 20,000 times greater than the Earth's and produce collisions powerful enough to create antimatter.
34
A cesium atom in an atomic clock beats over nine billion times a second.
43