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The Amazing Stamp (Posted on 2003-12-01) Difficulty: 4 of 5
You have an ink stamp that is so amazingly precise that, when inked and pressed down on the plane, it makes every circle whose radius is an irrational number (centered at the center of the stamp) black.

Is it possible to use the stamp three times and make every point in the plane black?

If it is possible, where would you center the three stamps?

See The Solution Submitted by DJ    
Rating: 4.4545 (11 votes)

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Some Thoughts Some thoughts on the problem Comment 45 of 45 |
The stamps need to be centered at the coordinates (0,0), (1,0), (0,)

  Posted by K Sengupta on 2007-05-12 13:28:40
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