- Along with arithmetic, geometry was one of the two fields of pre-modern mathematics.
- The compass and straight edge were powerful tools in the advancement of geometry, allowing the construction of various lengths, angles and geometric shapes.
- Red light has the highest wavelength.
- Some playing cards in India are round.
- Hilton was the first international hotel chain.
- Bananas grow pointing upwards.
- More than 1,000,000 Earths could fit inside the Sun.
- The D.C. in Washington D.C. stands for District of Columbia.
- You can't trademark surnames.
- Silly String was originally designed to be a spray on cast for broken bones.
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