Wave Motion Interference

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A 16mm film now incorporated into my article http://www.gcmstudio.com/acoustics/acoustics.html because it's not only relevant to water, but sound and light waves as well. It is from my own collection that clearly demonstrates how 2 sources of vibration interact. Anybody who uses more that 1 speaker to listen to audio should see this, especially engineers. It shows an ideal world, free of reflections (echoes or reverberation) but is educational never the less.
Yet, this form of interference is largely ignored, even in texts about acoustics.

It has been edited for time but no concepts covered have been removed.

Category
Secondary Science Safety Demonstration Videos Teacher Resources
Tags
Demonstration Videos, Physics, Senior, Science
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