When withdrawing money from an ATM, the 'whirring' sound before your money pops out is actually a recording. The actual mechanism is so far back that you can't hear it.
282
All the gold ever mined could be molded into a cube 60 feet high and 60 feet wide.
38
Déjà vu occurs when your brain tries to apply a memory of a past situation to your current one, fails, and makes you feel like it's happened.
12
In many countries, urine was used as a detergent for washing.
17
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
If you flip a coin ten times, the odds against its coming up with the same side showing each time are 1,023 to 1.
39