[algore]

I designed several electric water vapor engines a long time ago but I was never able to get the math to work out in my favor.

probably the wankel variant I considered would be mostly possible?

no I don’t think so offhand, but maths is fun

[Eleutheria5]

You’re talking about engines run by water? Like steam engines? Despite the misleading headline, that’s not what Musk is having a boner over, but hydrogen injection power which results in water vapor. Is that what you designed back then?

[Elsie]

I designed several electric water vapor engines a long time ago but I was never able to get the math to work out in my favor.

Here's a water vapor engine...