- Human thigh bones are stronger than concrete.
- The electric toothbrush was invented in 1939.
- It is not possible to tickle yourself.
- It was once illegal to slam your car door in Switzerland.
- The first sport to be filmed was boxing in 1894.
- Pressurized plane cabin air is the same average humidity of the Sahara Desert.
- Bananas grow pointing upwards.
- Every living thing on the Earth contains carbon.
- Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
- The water signs are Cancer, Scorpio, and Pisces.
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