The Wagon Wheel Effect | Optical Illusion Science Experiment

The video explains the wagon wheel effect, a visual illusion where rotating objects appear to move differently due to frame rate and speed. Using a clock, the video demonstrates how frame rates can make objects seem to move backward or freeze. Viewers can observe this effect with household items like fans and drills. For precise measurement, a tachometer can be used to measure rotational speed, converting RPM to revolutions per second. The video also provides tips on camera settings to reduce motion blur and enhance the effect.

What safety precautions should be taken when using a tachometer?

Explain how to convert revolutions per minute to revolutions per second.