One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Scientists aren't sure what color dinosaurs were.
312
Iron weighs more after it rusts.
68
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
The earth is approx. 6,588,000,000,000,000,000 tons.
175