Quote:
Originally Posted by ADEe92
Now imagine flocks of 100s or 1000s of leaf blowers flying around your city in residential areas... They should be banned by the EPA until the sound issue can be resolved.
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So, I used to work at NASA. This is relevant because while I was working there, I got to take a tour of the supercomputer facility. One of the things they had simulations of that they were working on was counter-rotating fans to increase output while decreasing sound. It was a pretty mesmerizing video.