One 75-watt bulb gives more light than three 25-watt bulbs.
57
German chemists made a replica of a trophy the size of one molecule.
68
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Iron weighs more after it rusts.
68
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
A cesium atom in an atomic clock beats over nine billion times a second.
43