A cubic yard of air weighs about 2 pounds at sea level.
31
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Iron weighs more after it rusts.
16
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
According to studies, men change their minds two to three times more often than women.
72
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Most dust particles in your house are made from dead skin!
67