How Schlieren imaging works in color, black and white and slow-mo. Get a free audiobook with a 30 day free trial at www.audible.com/veritasium Special thanks to Patreon supporters: Tony Fadell, Donal Botkin, Curational, Jeff Straathof, Zach Mueller, Ron Neal, Nathan Hansen, Corvi Support Veritasium on Patreon: ve42.co/patreon Filming by Raquel Nuno Sound Effects by A Shell in the Pit