In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39
Pumice is the only rock that floats on water.
14
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
Iron weighs more after it rusts.
68
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
One third of the electricity produced on earth is used to power electric light bulbs!
75
Most dust particles in your house come from dead skin.
48