- Babylonians measured the circumference of a circle as approximately 3 times the diameter, which is fairly close to today's measurement which uses the value of Pi (around 3.14).
- In 1872 Yellowstone in the US was the world's first national park.
- That you burn more calories eating celery than it contains (the more you eat the thinner you become).
- Mosquitoes prefer children to adults and blondes to brunettes.
- After Hawaii, New York is the state surrounded by the most water.
- The Chinese used fingerprints as a method of identification as far back as AD 700.
- In 1900 the average life span in the US was 47.
- Snails can sleep for up to three years.
- Your normal body temperature is 37C (99F).
- An astronaut can be up to 2 inches taller returning from space (the cartilage disks in the spine expand in the absence of gravity).
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