Saturday, December 23, 2006
23121A
Pray hard for STP.
Lols, was just looking at the coupled pendulum n thinking. I remember its something to do with transfer of energy, but there seems to be nothing showing that, just that the pendulums are taking turns to oscillate. But now i know, i guess.
Its a combination of both the concepts of energy transfer and resonance. Not so much of vibrations of air particles in between, cos the phenomenon took place just the same with a paper in between them. I have a short line strung between the 2 pendulums btw. When one swings, the energy in the system is used against air-resistance and also to tug at the short line. This tugging will cause the other pendulum to begin its oscillation gradually. (transfer of energy is quite easily understood) One thing to note is that the action of tugging follows a certain frequency, and so the other pendulum also oscillates at the same frequency. Since the frequency of the force (tugging) coincides with the frequency of the other pendulum, its amplitude doubles and slowly begins to oscillate to the same/similar extent as the first one. Since energy has to be applied to carry out the tugging, the first pendulum ceases its oscillation simultaneously. The process repeats.
Just wrote my conclusions here.
posted @ 11:48 pm
