1. I

    schlieren photography

    Hi all, I would like to setup a Schlieren photography set, similar to what shown at the link below: Practically I would print a series of stripes on the background an take a photo of it. then i would need to put the film in front of a camera...
  2. Z

    Air refraction as function of TEMPERATURE

    I have been looking for a chart/function but couldnt find. I need it to do studies on a Schlieren set-up, which relies on the difference of density, thus variations of the air refraction, to make air flow visible. Hereby I attach a video that explains it better QpP4qM8wcNM So, I...