Interactive Mathematics Miscellany and Puzzles
Raymond Smullyan, a Mathematician, Philosopher and author of several outstanding books of logical puzzles, tells, in one of his books, a revealing story. A friend invited him for dinner. He told Smullyan that his teenage son was crazy about Smullyan's books and could not wait to meet him. The friend warned Smullyan not to mention that he is a Mathematician and that Logic is a part of Mathematics because the young fellow hated Mathematics.
Having told this story, would it be wise to announce up front what this site is about? Perhaps against a better judgement, I've put together a manifesto that aims to explain the purpose of this site.
By the way, did you know that...
- 1/3 + 1/4 = 7/12
- Complex number to a complex power may be real
- Simple quadrilaterals tessellate the plane
- You can't add apples and oranges but you can add their shapes
- Everything you can do with a ruler and a compass you can do with the compass alone
- Curves of infinite length may enclose finite areas
- One can drill holes that are almost square
- Complex numbers are in a sense perfect while there is little doubt that perfect numbers are complex
- Among all shapes with the same perimeter a circle has the largest area
- Complex number to a complex power may be real
- Sphere has two sides. However, there are one-sided surfaces
- Demographic tests show that the person least likely to buy Wired magazine is an American schoolteacher
- Complex number to a complex power may be real
- Sets may be thick, thin and normal
- One is morally obligated to do everything impossible
- There are just five regular polyhedra
- There are many things that can be multiplied
- There is a simple solution to the affirmative action problem
- There are many things that can be multiplied
|
Last updated: July 6, 2018 What has changed? |
|Contact| |Front page| |Index|
Copyright © 1996-2017 Alexander Bogomolny