AM radio on high speed hot dog (ft Slow Mo Guys)

Can you record audio without a microphone, using a high speed video camera, a hot dog, and an AM radio tower? MASSIVE thanks to Gavin, who came all the way to St. Louis to film this. Make sure you check out the ‪@theslowmoguys‬ video with tons of gorgeous high-speed footage:    • Why You Shouldn't Touch a Radio Tower at 2...   And check out the GitHub repo with all the code: https://github.com/geerlingguy/audio-... Support me on Patreon:   / geerlingguy   Sponsor me on GitHub: https://github.com/sponsors/geerlingguy Merch: https://www.redshirtjeff.com Main Channel:    / @jeffgeerling   3rd Channel:    / @level2jeff   Contents: 00:00 - A 90 decibel hot dog 01:35 - Theory 02:15 - Tested with a blinky LED 04:47 - Meet the Meats 05:44 - Two problems and a glizzy 07:27 - Hot dog, not hot dog 08:08 - Plasma into sound with OpenCV 09:01 - Other plasma adventures