Why would they explode this way how interesting? They will be spining fast the material at the equator spinning the fastest and would think that be where she would rip. Like planetary neb how they must have blown apart to form that patten how it suggest splitting like a wall nut. But the bubble as it tries to get to the surface must heat it so the heat can move that way. Thanks Ron that was so interesting that gives me a lot to think about.
alex
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