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
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
A cubic yard of air weighs about 2 pounds at sea level.
31
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
One 75-watt bulb gives more light than three 25-watt bulbs.
57
Scientists in Germany have developed a candy that doesn't cause cavities.
11