Un metodo per misurare la velocità del suono 2

A simple experiment for measuring the velocity of sound in air using two hollow metal cylinders, a microphone and a digital oscilloscope is described. Knowing the distance between microphone and cylinders the velocity of sound is easily computed by measuring the time interval between banging them together and the microphone’s reception of the sound. In the best of cases the relative error can be about 1%, allowing to explore how the velocity of sound depends on the temperature of the air