- The average person falls asleep in 7 minutes.
- You brain weights 2% of your body weight though uses 20% of all oxygen you breathe and 15% of the bodys blood supply.
- The 'you are here' arrow on maps is called an ideo locator.
- Crocodiles never outgrow their enclosure.
- That in the 17th century the value of pi was known to 35 decimal places (today to 1.2411 trillion).