Yes, actual experience. Didn't read it in a book or magazine. Didn't learn anything from Flat Earther naysayers on this site either..... Actual hands on experience.
Jea48
I just don't understand the term "Flat Earther" in the context you use it. As I understand it a flat earther is one who rejects scientific reasoning and instead relies on outdated ideas, pseudoscience or religious arguments to derive their facts. What Czarivey and Mceljo are asking for is scientific proof that the minute magnetic fields produced either by the spinning disc or the paint on the top of the disc have any audible effect.
This always seems to be the case when the term "Flat Earther" is thrown around.