In the book What If? from Randall Munroe, the author writes:
Q: Assuming a relatively uniform resonant frequency in a passenger jet, how many cats, meowing at what resonant frequency of said jet, would be required to "bring it down"?
I'm unable to google out any usage of "uniform resonant frequency" or even "relatively uniform resonant frequency" at all. I do meet "uniform resonance", but the results are all papers, which assuming that I have understood the word already. From my understanding, for every object there is only one resonance.
I think for a resembled object like a jet, each part has a different resonance, and if all of them is plotted, we can see if they are relatively uniform or not. The mechanical resonance does mention about airplanes, but I'm not sure this is the case.
So what does it mean?