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A comment on Math Professor Invents Non-Reversing Mirror. Parent comment

Re:Math Professor Invents Non-Reversing Mirror by fennecfoxen on Thursday December 20, 2012 @12:46PM (#4948898)
Demonstration time:

Write something on a piece of paper. Hold the paper up to the mirror.

Now replace that with a transparent piece of plastic.

[ Parent | on HN ]
Re:Math Professor Invents Non-Reversing Mirror by eru on Friday December 21, 2012 @01:11AM (#4951710)
What is that supposed to demonstrate?
[ Parent | on HN ]
Re:Math Professor Invents Non-Reversing Mirror by Oenotria on Friday December 21, 2012 @05:20AM (#4952183)
That people on HN have too much spare time.
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