MIT engineers build a battery-free, wireless underwater camera
This tiny camera is extremely energy efficient and is powered by underwater sound waves. Beyond being a really cool advancement this camera will empower researches to explore more of the ocean.
The autonomous camera is powered by sound. It converts mechanical energy from sound waves traveling through water into electrical energy that powers its imaging and communications equipment. After capturing and encoding image data, the camera also uses sound waves to transmit data to a receiver that reconstructs the image.
Your projects will have to wait a bit until they can run off sound waves. In the meantime learn All About Batteries
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