Lecture
This lecture presents various examples of schlieren systems and phenomena recorded using these methods, showcasing the visualization of large schlieren systems, supersonic projectiles, temperature variations, and the effectiveness of masks. The instructor demonstrates classic schlieren systems with mirrors, visualizing flows with different densities, and generating shock waves with a whip and a trombone. The lecture also covers a micro schlieren system for smaller-scale experiments and introduces a technique developed in 2001 by the German Aerospace Center for imaging entire airplanes.