Stroboscope demonstration

A stroboscope is an instrument used to make an rotating object appear slow moving or stationary. This is achieved by tuning the stroboscope to blink at the same frequency as of the rotating object. When the frequencies match, the object appears stationary although it is rotating. In this video, I use a servo motor with 6 blades as a rotating source. I use a stroboscope (phone LED) and tune it to the rotational frequency of servo motor which is around 6Hz.