Why do oscillating fans sometimes get louder, less frequently than their cycle?
In: Other
Could be the doppler effect?
Might be related to starting torque, the strength needed to start a fan compared to keeping it moving? Or maybe the strength it puts into the fan blowing changes because some goes into the oscillation, more when its moving fast mid-cycle, less when its moving a slower on the ends?
Makes me think of this guy’s video https://www.youtube.com/watch?v=hQ3GW7lVBWY
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