djones512,061 posts05-27-2020 7:28amSound and hearing the amazing things we know in the 21st century.
http://hyperphysics.phy-astr.gsu.edu/hbase/hframe.html
>>>>That’s weird. I don’t see wire directionality mentioned anywhere on that site. Or even an explanation of what the audio signal is. Oh well, maybe all those big brains 🧠 will get around to it in the 22nd century. What they omitted is what we don’t know. 😬