Because a pendulum's oscillation frequency depends on its length, not its mass, you can use different colored bowling balls for a pretty effect. By Francie Diep Published Sep 8, 2014 7:20 PM EDT Get ...
(CBS) - The "pendulum wave effect" is a well-documented phenomenon that has been demonstrated in numerous classrooms around the world... but have you ever watched it with a black light and music? No?
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