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/9q75v9t9 In this video, I show you wy 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: https://twitter.com/theactionlabman Facebook: https://www.facebook.com/theactionlabofficial/ Instagram: https://www.instagram.com/therealactionlab/ Snap: https://story.snapchat.com/p/d6633292-e115-4583-897d-628358779b5b/426771378288640 Tik Tok: https://www.tiktok.com/@theactionlabshorts