https://tube.loping.net/videos/watch/2f030e31-cc30-498d-b62b-7e944b0c04ff Demonstration of a rotor that is turned by sound pressure. It can spin either direction depending on what type and pattern of sound is applied. I also test different gases (hydrogen, sulfur hexafluoride, carbon dioxide, and helium) in addition to air at different pressures. Dan Russell's video of the radiometer: https://www.youtube.com/watch?v=KGLFJzFt-G4 Academic paper on the radiometer: https://sci-hub.ru/10.1119/1.1645287 Laser cutter used to make the rotor vanes: https://www.cloudraylaser.com/products/cloudray-litemarker-gm-series-neo-100w-autofocus-mopa-fiber-laser-engraver-with-built-in-camera Tweeters used in the chamber: https://www.ebay.com/itm/304754143758 Amplifier used: https://fosiaudio.com/products/fosi-audio-v3-300w-x2-2-0-channel-hi-fi-stereo-audio-amplifier-with-tpa3255-chip Acoustic absorber panels: https://www.amazon.com/dp/B07T2F1NR9?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1 Support Applied Science on Patreon: https://www.patreon.com/c/AppliedScience Sun, 12 Jul 2026 13:17:23 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://tube.loping.net https://tube.loping.net/lazy-static/avatars/8a56e488-2120-4649-a417-badf5893657b.png https://tube.loping.net/videos/watch/2f030e31-cc30-498d-b62b-7e944b0c04ff All rights reserved, unless otherwise specified in the terms specified at https://tube.loping.net/about and potential licenses granted by each content's rightholder.