Sweden recycles so well that it has run out of garbage and now must import garbage from Norway to fuel its energy programs.
If you put a giant mirror 5 lightyears away from Earth and liokrd at it through a telescope, theoretically we'd see 10 years into the past.
Most people dream in color, but those that grew up watching balck and white television often dream in black and white.
A hard working adult sweats up to 5 gallons per day. Most of the sweat evaporates before a person realizes its there.