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Old 08-29-2016, 07:16 PM
harmonicamoon harmonicamoon is offline
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Join Date: Sep 2012
Location: Yucatan, Mexico
Posts: 2,435
Remember the round, cardboard quarts of automobile oil? This design, using calculus, was the most efficient use of materials. Round is good.

Now, with plastic, the equation has changed. They now come in rectangular containers. Probably better for shipping.