Many thanks to SWLing Post contributor, Skip Arey (N2EI), who shared the following video on Facebook:
Any electrical spark creates radio waves and acts as a transmitter. You hear sparks on a radio as interference. That’s why lighting makes radios crackle, and even the tiny spark in a switch is enough to make a noise on the radio when turning on a light./blockquote>
Thanks for the post: Skip and Thomas. A nice recap of radio’s early beginnings. And a reminder that the magic was there from the start.