- Rats and mice are ticklish, and even laugh when tickled.
- Bernhard Riemann was an influential German mathematician who contributed to differential geometry and analysis, paving the way for the development of general relativity by Albert Einstein.
- A full moon is nine times brighter than a half moon.
- Cars were first started with ignition keys in 1949.
- More people are killed by hippopotamuses then by lions, elephants and water buffalos combined.
- Hawaii is the only US state that grows coffee.
- Cows give more milk when they listen to music.
- The moon orbits the Earth every 27.32 days.
- Kickball is referred to as u201csoccer-baseballu201d in some parts of Canada.
- The average soccer ball is made up of 32 leather panels and held together by 642 stitches.
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