- The first toothbrush was invented in 1498.
- An individual blood cell takes about 60 seconds to make a complete circuit of the body.
- Archimedes of Syracuse lived around the year 250 BC and among other things, developed a method for determining the volume of objects with irregular shapes.
- Mercury and Venus are the only planets in our solar system with no moon.
- Goldfish can see both infrared and ultraviolet light.
- Grapes explode when you put them in the microwave.
- 59% of people say that they're average looking.
- Warthogs can reach speeds of 48km/h (29mph).
- Giraffes can grow more than 18 feet tall.
- There are 7 points on the Statue of Liberty's crown.
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