Pendulum Waves https://www.youtube.com/watch?v=yVkdfJ9PkRQ
https://www.youtube.com/watch?v=yVkdfJ9PkRQ Pendulum Waves https://www.youtube.com/watch?v=yVkdfJ9PkRQ Fifteen uncoupled simple pendulums of monotonically increasing lengths dance together to produce visual traveling waves, standing waves, beating, and... View on youtube.com https://www.youtube.com/watch?v=yVkdfJ9PkRQ Preview by Yahoo
