The Mystery of the 17th Harmonic

FAA and FCC chase down a shortwave radio broadcaster whose 17th harmonic is found to interfere with airplane radio at 132.26 MHz   https://www.youtube.com/watch?v=mOOfs2iVeso   SEE ALSO https://soundquality.org/?s=sine+square+15+khz       The concept of the “mystery of the 17th harmonic” refers to a phenomenon in music theory and acoustics that has intrigued musicians, mathematicians, and theorists … Read more