![Screenshot of youtube.com: I built a light that reacts to radio waves [video]](https://hn.urlbox.com/shots/renders/2026/1/23/27993923-5a01-4c5a-bf85-b4cb88ce46f2.jpg)
I built a light that reacts to radio waves [video](youtube.com)
432 points by codetheweb | 97 comments
YouTube video by Rootkid showing a self-built light installation that visualizes nearby radio wave activity.
#radio-waves on Hacker News
1 story tagged radio-waves, newest first.