ФОТО: petapixel.com

Have you ever wondered what a gale-force sneeze would look like if you could see air currents, temperature gradients, and differences in pressure and composition of the air? Or, less disgustingly, the strike of a match? This fascinating 6-minute video demonstrates Schlieren photography, which makes the invisible visible.

Schlieren photography is an interesting optical technique […]. petapixel.com

2017-6-17 22:33