- Grapes explode when you put them in the microwave.
- An astronaut can be up to 2 inches taller returning from space (the cartilage disks in the spine expand in the absence of gravity).
- 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)..
- Mosquitoes prefer children to adults and blondes to brunettes.
- The longest possible eclipse of the sun is 7.31 minutes.
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