If the chemical sodium is dropped into water it will immediately and violently explode.
67
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
German scientists claim to have evidence that suggests that our universe may exist inside of a computer simulated Matrix.
18
The average temperature at 40,000 feet above sea level is -60 F.
56
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
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