That’s what I’ve heard. but also, the frequency of electricity in the USA is 60 Hz because Tesla found after experimentation that that’s the frequency where you don’t notice a lightbulb flickering anymore. Since the lightbulb flickers 120 times per second at 60 Hz, you could assume that a lower framerate than 120 fps is noticable.
That’s what I’ve heard. but also, the frequency of electricity in the USA is 60 Hz because Tesla found after experimentation that that’s the frequency where you don’t notice a lightbulb flickering anymore. Since the lightbulb flickers 120 times per second at 60 Hz, you could assume that a lower framerate than 120 fps is noticable.