- Goldfish can see both infrared and ultraviolet light.
- The equals sign (=) was invented in 1557 by a Welsh mathematician named Robert Recorde..
- Isaac Newton discovered the laws of physics and brought together many important concepts of infinitesimal calculus..
- The Moons diameter is 3,476km.
- You can buy square watermelons in Japan (developed to stack better in supermarkets).
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