PURPOSE: Demonstrate how a stroboscope works, and illustrate persistence of vision.
DESCRIPTION: A water container with a nipple near the bottom is connected to a plastic tube and eye dropper to produce a stream of water which breaks up into a series of water droplets. The water stream is illuminated by a stroboscope and viewed by a TV camera. Adjustment of the strobe frequency can make the water droplets move up or down either slowly or rapidly, or even stand still!
REFERENCES: (PIRA unknown.)
EQUIPMENT: Water tank with nipple, plastic tube, eyedropper, white background plate, cake pan receptacle, and stroboscope with TV camera.
SETUP TIME: 5 min..
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