Sometimes when you look at an analog clock with hour/minute/second hands, the second hand looks like it moves backwards initially for 1 tick then looks normal after that. Why?

Question

Sometimes when you look at an analog clock with hour/minute/second hands, the second hand looks like it moves backwards initially for 1 tick then looks normal after that. Why?

In: Other

Answer 1

When you move your eyes quickly, your brain shuts off the image, because otherwise it would be super fast and blurry all the time, so instead of seeing black your brain goes back and fills in that memory with your current view which makes you think you’ve been looking at the clock for longer than you really have.