https://diode.zone/videos/watch/71cb5622-3649-45b1-996d-bd9347305f03 This was one of my two entries for the Flashing Light Prize competition of 2017 Participants had to create a mechanism to flash an incandescent light bulb for 5 minutes with a period of 0.5-2.0 seconds. I wanted to avoid using the components one would expect in electronic oscillators described in textbooks. So no capacitors, transistors, or relays. What I came up with involved one marble rolling back and forth between a solenoid and an improvised limit switch. Tue, 20 Oct 2026 15:14:00 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://diode.zone https://diode.zone/lazy-static/avatars/61b689b7-84d5-43c7-9fa8-e63a7fd1d952.png https://diode.zone/videos/watch/71cb5622-3649-45b1-996d-bd9347305f03 All rights reserved, unless otherwise specified in the terms specified at https://diode.zone/about and potential licenses granted by each content's rightholder.