All modern mobile phones today have a part in them called “accelerometer” that can tell up from down and even how the phone is moved in 3D space. Several makers across the world have also found new uses for these parts such as in robotic hands, quadcopters and even musical instruments. But how does accelerometers work? The engineerguy has the answer, and its all in this video. Not only does he explain how it works, but also how it is made at microscopic scale. Anyone interested in electronics, robotics or even general physics should definitely watch this video!