One 75-watt bulb gives more light than three 25-watt bulbs.
57
Your brain is 80% water.
525
Most dust particles in your house are made from dead skin!
67
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Scientists in Germany have developed a candy that doesn't cause cavities.
11
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20