Also , why are so much stuff that i think dont need to be aerodynamic, are in fact aerodynamic , like fruit and vegetables …etc
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There are two major advantages to shaping water bottles with bubble ends. First, they are mostly manufactured by a blow-molding process. Blow-molding, as the name suggests, produces bubbles much easier than square corners. Second, it is a stronger shape against internal pressure. Your fizzy drink is contained safer.
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