For every gallon of sea water, you get more than a quarter pound of salt.
45
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
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Scientists aren't sure what color dinosaurs were.
312
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79