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A comment on Math Professor Invents Non-Reversing Mirror.

Re:Math Professor Invents Non-Reversing Mirror by phaet0n on Thursday December 20, 2012 @12:17PM (#4948742)
Feynmann's great mirror story [1]. Try and solve the puzzle before watching the whole clip.

[1] http://www.youtube.com/watch?v=msN87y-iEx0

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