Wow, this is odd, or at least it is if you don’t understand Science! This guy can get a radio station frequency with his wedding ring by connecting it to his auxiliary cord. While it may impress us simple folk, a redditor provided an explanation for why this happens with ANY wedding ring.
You’re basically making a ground loop by connecting the different leads (wires in the cable), using your ring as a jumper. This more or less turns the wire going into the speaker into a big antenna, and since it’s going through an amplifier, it has the power to make those radio waves audible.
You might be able to change the station by using a shorter or longer cable going into the speaker!
The purpose of having different leads in a cable is to use balanced pairs of wires to shield the electronic signal going down the wire from device to speaker from outside noise – RFI and EMI. Radio frequency interference and electromagnetic interference. Radio waves are traveling through the air around us constantly, and they can be converted into energy pulses through the use of long wires, which is exactly what an antenna is. The operating frequency of a radio station has a physical wavelength that it takes for that radio wave to propagate fully, so the wire you have going to that speaker is either that exact wavelength, or a multiple of it.
