Shock waves emanating from a trombone have been captured on video for the first time using schlieren photography. With a harsh blast from the mouthpiece, it’s possible for pressure waves inside the trombone to build into a weak shock wave traveling about 1% faster than the speed of sound. It’s possible that musicians sitting in front of the trombones could receive hearing damage from these shock waves or similar ones from trumpets. # (submitted by jessecaps)
Celebrating the physics of all that flows