The projection of a laser responding to motion at a reflection point. The reflection point sits on a membrane enclosing a speaker in a container. Various combinations of layered frequencies are played, compressing the surrounding air and creating standing waves that travel past the reflection point, yielding unique oscillatory patterns. This motion is magnified depending on how far the end of the projection is from the reflection point. The following demonstration is the result of this effect.
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The physics behind this experiment are very interesting and you captured them very nicely, as well as in a very dynamic way