How Do Zipline's Silent Propellers Work?

Learn more about SimScale and get started with a free community account: https://hubs.la/Q01Jks8n0 View the Quadcopter public project here: https://hubs.la/Q01LmJN80 The paper used in this video: https://escholarship.org/uc/item/9q75... In this video, I show you why uneven blade spacing makes propellers sound quieter. Shop the Action Lab Science Gear here: https://theactionlab.com/ Checkout my experiment book: https://amzn.to/2Wf07x1 Twitter:   / theactionlabman   Facebook:   / theactionlabofficial   Instagram:   / therealactionlab   Snap:   / 426771378288640   Tik Tok:   / theactionlabshorts