It's an old (probably 1930 - 1950 sometime) instruction film showing all symetry axises/planes in a cube (and there is lots of them), using a physical model of a cube, and a mirror placed in the symetry plane currently beeing shown. It is shown (or at least, it used to be shown, as part of the "n0llning" at EE, KTH.
I guess what you've done was more theoretical? :-)
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timeasmymeasure
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Date: 2006-06-08 10:04 pm (UTC)I guess what you've done was more theoretical? :-)