- Scissors were most likely invented ancient Egypt.
- A human brain weighs around 3 pounds.
- A nanosecond is one billionth of a second.
- The first train reached a top speed of only 8 kmh (5 mph).
- Your tongue is the fastest healing part of your body.
- Your blood is 6 times thicker than water.
- Arachibutyrophobia is the fear of getting peanut butter stuck to the roof of your mouth.
- Koalas sleep around 18 hours a day.
- The hamburger was invented in 1900.
- A female ferret is called a jill.
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