You can tape a small mirror onto a cone speaker, play music and shine a laser on to the mirror and the reflection will look like a laser light show on your wall.
102
Those things you see in your eyes when you stare into space are called Mouches Voltanes, which are also broadly referenced to as Floaters.
9
The oldest living person smoked cigarettes from the age of 21 to 117.
13
There are 170,000,000,000,000,000,000,000,000 ways to play the ten opening moves in a game of chess.
266
Japanese engineers were asked to redesign the front end of the Bullet Train because it carried enough speed to create a sonic boom whenever it exited a tunnel. Residents could feel the blast from miles away.
11
Coins usually survive in circulation for about 30 years.
66
The Gate Tower Building skyscraper in Japan has a highway passing through its fifth, sixth and seventh floors.
7
Each year, more than 50,000 people are injured by jewelry in the U.S.
29