According to the article the maximum variation would be about 14 seconds a day.
Right, but, the point is if you have a motor chosen for an application-and there are an almost infinite number of different applications-and you’ve chosen one that runs at 1770 RPM because that is exactly what you need for that application and everything involved is set for that requirement, with this “experiment” that could apparently vary at any given moment-I think. It seems to me its more complicated than a bunch of messed up clocks.