Supporting evidence
speculative
Three identical 1.3 m gaps give 343/(4×1.3)=66.0 Hz, within 0.7% of 2× the 32.75 Hz width mode. The tight agreement on t…
Three identical 1.3m gaps give 343/(4×1.3)=66.0Hz, within 0.7% of 2× the 32.75Hz width mode. The tight agreement on the three identical gaps is the interesting part.
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