Looking for ways to reduce weight in plastic parts, Ford researchers in Europe are turning to an unlikely source for inspiration: a chocolate bar. Not just any chocolate, but the bubble-infused Nestle Aero bar. No longer sold in the U.S. but still distributed in Canada and the U.K., the candy boasts aerated chocolate that has a light, airy texture. Similarly, injecting carbon dioxide or nitrogen into a plastic part can reduce its weight up to 10%, the researchers have found. With ...

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