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when toggle format what by license comment
Sep 1, 2010 at 7:10 history edited sleepless in beantown CC BY-SA 2.5
corrected 'triangle' to the word 'plane'
Aug 29, 2010 at 15:12 history edited sleepless in beantown CC BY-SA 2.5
eliminated my negative editorializing
Aug 29, 2010 at 15:04 history answered sleepless in beantown CC BY-SA 2.5