The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
The earth is approx. 6,588,000,000,000,000,000 tons.
175
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
A ball of glass will bounce higher than a ball made of rubber.
73