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Re: Pendulum LOOP

http://www.youtube.com/watch?v=yVkdfJ9PkRQ

Quoting Kevin Cheli-Colando <billowhead@gmail.com>:


do you have a functional link?

Thanks,

Kevin

On Wed, Sep 28, 2011 at 3:17 PM, Rick Walker <looppool@cruzio.com> wrote:

Beautiful visual loop showing visual pattern consonance and dissonance


TinyURL.com/pendulumLOOP


What it shows: Fifteen uncoupled simple pendulums of monotonically
increasing lengths dance together to produce visual traveling waves,
standing waves, beating, and random motion. One might call this kinetic art
and the choreography of the dance of the pendulums is stunning! Aliasing 
and
quantum revival can also be shown.

How it works: The period of one complete cycle of the dance is 60 seconds.
The length of the longest pendulum has been adjusted so that it executes 51
oscillations in this 60 second period. The length of each successive 
shorter
pendulum is carefully adjusted so that it executes one additional
oscillation in this period. Thus, the 15th pendulum (shortest) undergoes 65
oscillations. When all 15 pendulums are started together, they quickly fall
out of sync—their relative phases continuously change because of their
different periods of oscillation. However, after 60 seconds they will all
have executed an integral number of oscillations and be back in sync again
at that instant, ready to repeat the dance.

Setting it up: The pendulum waves are best viewed from above or down the
length of the apparatus. Video projection is a must for a large lecture 
hall
audience. You can play the video below to see the apparatus in action. One
instance of interest to note is at 30 seconds (halfway through the cycle),
when half of the pendulums are at one amplitude maximum and the other half
are at the opposite amplitude maximum.






--
Till now you seriously considered yourself to be the body and to have a
form. That is the primal ignorance which is the root cause of all trouble.

- Ramana Maharshi (1879-1950)

Sound and Vision:  http://www.minds-eye.org
Video http://www.vimeo.com/user877640/videos