There seems to be a lot of 'doom and gloom' posts these days, so I thought we should lighten things up with a fun thread.
Basically, find a cool Wikipedia link and post it here for others to enjoy. I'm not to be held responsible for any time lost due to random information binges.
There is no evidence that Vikings
wore horns on their helmets.
The United States Constitution
was written on parchment
, not hemp
It is commonly claimed that the Great Wall of China
is the only human-made object visible from the Moon. This is false. None of the Apollo
astronauts reported seeing any
specific human-made object from the Moon, and even earth-orbiting astronauts can barely see it. City lights, however, are easily visible on the night side of Earth from orbit.
The misconception is believed to have been popularized by Richard Halliburton
decades before the first moon landing. Shuttle astronaut Jay Apt
has been quoted as saying that "the Great Wall is almost invisible from only 180 miles up."
that a duck
's quack does not echo
is false, although the echo may be difficult to hear for humans under some circumstances.Bats
are not blind. While many (most) bat species use echolocation
as a primary sense, all bat species have eyes and are capable of sight. Further, not all bats can echolocate and these bats have excellent night vision (see megabat
, vs. microbat
Hair and fingernails do not continue to grow after a person dies. Rather, the skin dries and shrinks away from the bases of hairs and nails, giving the appearance of growth.Thomas Edison
did not invent the light bulb
He did, however, develop the first practical light bulb in 1880 (employing a carbonized bamboo filament), shortly prior to Joseph Swan
, who invented an even more efficient bulb in 1881 (which used a cellulose filament).