Experimental Studies with N Waves from Sparks
Friday, March 28, 1997 4:00 p.m. Professor Wayne M. Wright Department of Physics Kalamazoo College Kalamazoo, Michigan Weak sparks in air can be used to generate intense, short-duration acoustic transients that resemble N waves. Measurements made with wide-band capacitor microphones have confirmed theoretical predictions of amplitude decay and waveform elongation with propagation distance. These waves…