everything?
well, lets see, the sphere encompasses the largest volume using the least surface area. Any 'material' where the surface is at higher potential than the bulk should (giving that it's already in a high enough energy state) form a sphere in zero gravity. Although I'm thinking that fire being spherical has less to do w/ potential energy and more to do w/ convection.
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And if you say to me tomorrow, oh what fun it all would be.
Then what's to stop us, pretty baby. But What Is And What Should Never Be.
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