Continuation and explanation of the effect described in the recent article “Strange optical phenomenon”.

This phenomenon is extremely rare, because, as it seems to me, the apparent angular rotation frequency of the turntable should be very close to a MULTIPLE of the frequency of blinking of the lighting lamp.

Considering the frequency of blinking 120 times per second, the angular rotation speed of the turntable should be very close to 2, 3, 4, 5. 6. 8, 10. 12. 15, 20, 30, 40, 60 times per second.

Explanation.

It’s all about the interference of two frequencies, “BEATS”, superimposing them on each other.

The turntable rotates against the background of an optical disk illuminated by lamps, the surface of which FLASHES at a frequency of 120 times per second.

The turntable itself also creates a kind of partial shadow overlay of “blinks” with a certain frequency on this flashing disk. The superposition of these two frequencies on top of each other creates an optical illusion, first “slowing down the rotation” of the turntable, and then “accelerating” it.

Faciant meliora potentes.

If I’m wrong, let my seniors correct me.

12 X 2025