But even with 244 Hz the engine running at 9000 rpm or 150 Hz will not even give you two frames per revolution, about 221° of rotation per frame to be precise. If you want a somewhat smooth animation, say 10° per frame, you want to look for a 5400 Hz monitor.

But combustion engines go also much faster than 9000 RPM; afaik bike engines can reach 18000 RPM or more.

You’re correct, would be equivalent to 150Hz. I was curious too since my monitor is 360Hz :)

Not pedantic enough because we have 500Hz monitors already. Don’t think that’s the point the author was trying to make though.