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The clever engineering and design of two-liter plastic soda bottles.
Doing what he does best, Bill Hammack, AKA The Engineer Guy, spends an enlightening 13 minutes explaining not only how two-liter plastic soda bottles are made, but also how their seemingly simple design incorporates some ingenious engineering.
From the manufacturing process where bottles are inflated like balloons to eliminate seams that could split under pressure, to the hemispherical curves on the top and bottom of each bottle that increase its strength.
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