Please send me some background on this. It reminds me of the "cubic Archimedean screw": http://rsta.royalsocietypublishing.org/content/354/1715/2071 http://archive.msri.org/about/sgp/jim/geom/level/library/elser/animations/in... Veit On Mar 18, 2012, at 10:01 PM, Bill Gosper wrote:
To run it <http://gosper.org/pumper_2.mp4> continuously, download with Miro, QuickTime-View-Loop. The pumped shapes split lengthwise resemble boats, so a grand entrance to a math museum would be a chain of these boats in an annular canal, passing through four rotors acting as an (approximate) air|water lock, with another four for the exit. Oh, the insurance. --rwg No manual entry for overboard _______________________________________________ math-fun mailing list math-fun@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/math-fun