About 230 years ago, molten lead that rained from the sky—historically something to avoid at all costs—became a clever new way to manufacture an important commodity: shotgun ammo. Precisely round pellets fly straighter, but casting each in its own 1/8-inch mold isn’t exactly mass production. In space, making them would be easy. In zero gravity, surface tension pulls any liquid into a sphere, the shape with the least surface area for a given volume.
what is suggested is what is possible only in space.when it comes to earth,the results are unpredictable as dealt with various metals,at varying lab conditions.well it's not a mass production at all as described.none is a fool to invest huge on "virtual space creation"to form perfect metal spheres.also i feel that's impossible also.so far,latest casting techniques have produced the most perfect spheres in mass production.i find the technique a triffle needless in terms of money and feasibility.
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