These high school kids from Philippines invented an inexpensive device that generates electricity from sound

A team of students studying in the eleventh grade in Philippine Science High School-Western Visayas Campus have come up with a genius way to produce electricity. The children developed an inexpensive device that uses sound waves to generate power.

The students reveal that the generator they invented is like the opposite of a standard musical speaker; rather than using power to emit sound, the inside of the speaker is equipped with magnets and coils that generate electricity whenever they are hit by sound waves.

The gadget typically only generates enough electricity to power a small light, but it could prove to be an invaluable source of energy and lighting for rural communities.

Additionally, the device’s technology can be scaled up to generate larger amounts of energy from noisy areas such as airport runways.

Read more here: https://www.goodnewsnetwork.org/high-schoolers-make-device-that-generates-electricity-from-sound/