Submissions that have been rejected by the Creativity Pool. - The Docks aren't necessarily the final destination, if a broken idea gets fixed it may travel to a more appropriate category.
By hansraj soni
#23256
by using micro phone to detect the noise from environment,nature,industry and store in either form of energy like chemical or electrical can bring a lot of changes this is the future

disadvantages
a high pitch or sound is required for a long time then it is beneficial because mostly energy lost in the form of air resistance for low decible
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