- After a rain, the Bolivian salt flat Salar de Uyuni becomes the world’s largest mirror.
- The letter J appears nowhere in the periodic table of the elements.
- 9(9 – 6) yields same result upside down: (9 – 6)6 = 729. (Erich Friedman)
- Rearrange the letters in SUPRARATIONAL and you get PRO-AUSTRALIAN.
- “A good book praises itself.” — German proverb