A pipe 2 feet in diameter will allow four times more fluid to pass through it than a pipe 1 foot in diameter.
20
The full moon causes a tidal wave to roll up the Amazon river once in day and once in night for a period of only three weeks in a year. This results in continuous 4m high wave that can be surfed for up to 13km.
14
The WD in WD-40 stands for Water Displacer.
30
The majority of suicides occur on a Monday.
393
Babies who wear disposable diapers are five times more likely to develop diaper rash than those that wear cotton diapers.
39
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
Couples' personalities converge over time to make partners more and more similar.
235
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34