- The opposite of a 'vacuum' is a 'plenum'.
- Ice skating rinks always go counter clock wise (for the majority of people that are right handed needing to hang onto the rail).
- Dolphins can kill sharks by ramming them with their snout.
- Adults laugh only about 15 to 100 times a day, while preschoolers laugh an average of 300 times a day.
- Giraffes can grow more than 18 feet tall.
- Perth is Australia's windiest city.
- Giraffes can't cough.
- The surface area of your lungs is roughly the same size as a tennis court.
- MasterCard was originally called MasterCharge.
- The first US coast to coast aeroplane flight occurred in 1911 and took 49 days.
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