Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
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
The average home creates more pollution than does the average car.
33
Nylon is made from coal and petroleum.
42
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
German chemists made a replica of a trophy the size of one molecule.
68