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Achilles and the Tortoise (Posted on 2002-11-22) Difficulty: 3 of 5
Suppose that the swift Achilles is having a race with a tortoise. Since the tortoise is much slower, she gets a head start. When the tortoise has reached a given point a, Achilles starts. But by the time Achilles reaches a, the tortoise has already moved beyond point a, to point b. And by the time Achilles reaches b the tortoise has already moved a little bit farther along, to point c. Since this process goes on indefinitely, Achilles can never catch up with the tortoise.

How can this be?

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See The Solution Submitted by Raveen    
Rating: 3.0769 (13 votes)

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Brane world | Comment 9 of 31 |
Achilles and the tortoise are and a tenth dimension brane world. They pass through two intertwined wormholes. The tortoises wormhole is longer. :]
  Posted by Chaz on 2003-05-03 08:37:31
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