Novel PPPL invention could improve the efficiency of car and truck engines while reducing pollutants

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When it comes to car and truck engines, not much has changed since Nikolaus Otto invented the modern internal combustion engine in 1876. But the internal combustion engine could, at least theoretically, be in for a big change.
https://www.princeton.edu/news/2019/12/19/novel-pppl-invention-could-improve-efficiency-car-and-truck-engines-while-reducing