Sine-wave speech can be thought of as a sort of auditory illusion, a sensory edge case in which one’s experience has a clear “before” and “after” moment, like going through a one-way door. Sine-wave ...
A mesmerising YouTube video shows how one amateur scientist made the flow appear to stay still then, by adjusting bass frequency, rotate in both directions. The video, uploaded along with a how-to ...
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