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...
- 0!=1
- Among all shapes with the same area circle has the shortest perimeter
- At any given time in New York there live at least two people with the same number of hairs
- One can cut a pie into 8 pieces with three movements
- There is something the dead eat but if the living eat it, they die
- Bisector of an imaginary angle may be real
- One can drill holes that are almost square
- Bisector of an imaginary angle may be real
- Falsity implies anything
- Sphere has two sides. However, there are one-sided surfaces
- Sometimes in order to add one has to take the difference
- 1/3 + 1/4 = 7/12
- You can't add apples and oranges but you can add their shapes
- One is morally obligated not to do anything impossible
- Simple quadrilaterals tessellate the plane
- Simple Quadrilaterals Tessellate the Plane
- Complex number to a complex power may be real
- Complex numbers are in a sense perfect while there is little doubt that perfect numbers are complex
- Complex number to a complex power may be real
- You can't add apples and oranges but you can add their shapes
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Last updated: July 6, 2018 What has changed? |
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Copyright © 1996-2017 Alexander Bogomolny




