How does a record player work?
In: Technology
Sound vibrates the air. The air vibrates a microphone. The microphone vibrates a coil of wire. The coil of wire vibrates an electrical current. The electrical current vibrates a cutting needle in a metal plate. The metal plate now has cuts that are shaped by the sound. The metal plate is used to make a plastic disc. The plastic disc vibrates the pick-up stylus. The pick-up stylus vibrates a coil of wire. The coil of wire makes a current. The current drives an amplifier. The amplifier drives a speaker. The speaker vibrates the air.
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