The WD in WD-40 stands for Water Displacer.
30
American car horns beep in the tone of F.
66
Only 8% of the world’s currency is physical money. The rest exists only on computers.
20
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
In Georgia, there is an airtight room called the Crypt of Civilization that was sealed in 1940. It contains numerous artefacts documenting what life was like at the time of sealing, and is scheduled to be opened in the year 8113 to show people of the future exactly what life was like.
13
Since 1982, a radio frequency emanating from Russia has been broadcasting a buzzer-like sound and, periodically, an unknown voice reads orders, names, and numbers. No one knows where exactly it is coming from or what it means.
13
It takes the same amount of time to age a cigar as wine.
25
It's impossible to kill yourself by holding your breath.
703