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...
- You can't compare two complex numbers
- Some numbers are lucky. 13 is one
- At any given time in New York there live at least two people with the same number of hairs
- 12+3-4+5+67+8+9=100 and there exists at least one other representation of 100 with 9 digits in the right order and math operations in between
- You can't add apples and oranges but you can add their shapes
- One is morally obligated not to do anything impossible
- One can drill holes that are almost square
- Sometimes in order to add one has to take the difference
- A clock never showing right time might be preferable to the one showing right time twice a day
- Some numbers are lucky. 13 is one
- Sometimes in order to add one has to take the difference
- Among all shapes with the same area circle has the shortest perimeter
- As in philosophy, there are transcendental numbers
- C - C = [-1, 1]
- You can't add apples and oranges but you can add their shapes
- Sphere has two sides. However, there are one-sided surfaces
- There is a simple solution to the affirmative action problem
- There are three plane regions that share exactly the same boundary
- Sphere has two sides. However, there are one-sided surfaces
- In some circumstances index equals the content
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Last updated: July 6, 2018 What has changed? |
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