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Apr 19, 2011 at 4:17 vote accept velniukas
Apr 17, 2011 at 11:04 comment added velniukas Thanks. that's a lot clearer now - I missed the mandrel in my quick glance at it. Any thoughts on the Q3. How one would inflate a sphere with a parabola inside it? I still think the internal parabola must be a second balloon at a higher pressure internal to the sphere
Apr 17, 2011 at 10:00 history answered Georg CC BY-SA 3.0