I find it hilarious that an energy war makes inventions like this suddenly come ... | Hacker News

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		eurasiantiger on April 6, 2023 \| parent \| context \| favorite \| on: “Inside-out Wankel” rotary engine delivers 5X the ... I find it hilarious that an energy war makes inventions like this suddenly come out of the woodwork.

bartvk on April 6, 2023 [–]

It comes out of the woodwork with a $9 million grant from the US Army, that is true. On the other hand, the article states "LiquidPiston has been working on these X-engines for nearly 20 years now, with numerous prototypes already tested in small planes (see above) and go-karts."

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