- Mercury is the only metal that is liquid at room temperature.
- It takes 1 week to make a jelly bean.
- Scissors were most likely invented ancient Egypt.
- The Hindu-Arabic numeral system began developing as early as the 1st century with a full system being established around the 9th century, forming the basis of the numerical digits 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 that we use today..
- 1 square inch of human skin contains 625 sweat glands.
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