- Your brain uses 25% of all the oxygen your breathe.
- The woodpecker can hammer wood up to 16 times per second.
- The number Pi (the ratio of the circumference to the diameter of a circle) can't be expressed as a fraction, making it an irrational number. It never repeats and never ends when written as a decimal.
- The hydrochloric acid found in your stomach is strong enough to dissolve a nail.
- Jousting is the official sport of Maryland.
- The US shreds 7,000 tons of worn out currency each year.
- Antarctica is home to the largest desert in the world.
- In Japan, letting a sumo wrestler make your baby cry is considered good luck.
- The hyoid bone in your throat is the only bone in your body not attached to any other.
- Pez was invented in 1927.
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