- Tug-of-war was an Olympic sport in the early 1900s.
- Hypnotism is banned in public schools in San Diego (U.S.).
- You can start a fire with ice.
- There are 2 credit cards for every person in the US.
- Your blood is 6 times thicker than water.
- The diameter of the sun is 1,390,000km (865,000 miles).
- October the 10th is national metric day.
- Spiders have transparent blood.
- Russia and the United States of America are less than 3 miles apart.
- Shrimps are all born male but slowly grow into females.
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