Do you have a clock or pendulum that you need to figure out how fast its moving? With this app and a quiet background you can figure it out. Using your iPhone/iPads microphone this app tells you how fast a ticking pendulum is moving.
Do you have a clock or pendulum that you need to figure out how fast its moving? With this app and a quiet background you can figure it out. Using your iPhone/iPads microphone this app tells you how fast a ticking pendulum is moving.