The risk of hearing loss does not come just from loud machinery or other obvious noise. It can also affect people in public environments like theaters and concert halls. Absorbing this excess sound to make public environments safer for hearing and using the unwanted sound waves to create electricity is the aim of a paper, entitled "Piezoelectric system on harnessing sound energy in closed environment," published in Physics of Fluids.
from General Physics News - Science News, Physics News, Physics, Material Sciences, Science https://ift.tt/7B4tMXv
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