[ggm]

I touched what I thought was a stationary wheel on a lathe as a child. it was of course under flouro tube lighting: it was synced to the tube, the strobe effect made it look stationary. I've never forgotten it.

The guy owning the lathe made some short, sharp observations. But I also suspect he sweated blood later on. Explaining his role in this had I lost a finger or worse would have been nasty

[Aardwolf]

> it was synced to the tube, the strobe effect made it look stationary.

Why is it synced like that? Seems dangerous, and I don't know much about lathes but lighting synchronization doesn't seem something that would affect the mechanical parts being processed :)

[lelanthran]

> Why is it synced like that?

Synced to the AC mains or a multiple thereof.

[moring]

Layman's guess: Both were synced to the mains frequency.

[ggm]

This

[sevensor]

Sounds accidental, but might be interesting to be able to see the workpiece as if stationary, while it’s turning at 1800rpm. Everything looks smooth under ordinary lighting.