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What's the reason for those jagged edges of the jet-engines

Thank you to Cambly for sponsoring this video. Use this link for 15 minutes of free English tutoring: I am sure you have seen the new LEAP engines that are fitted to the Boeing 737 MAX aircraft. If you have seen them I am also sure that you have seen that the engines looks "jagged" towards the back. These jagged dges are called CHEVRONS and I will be telling you the fascinating story behind them and many other wondrs of the modern Jet-engine in this video. If you want to join me in the chat afterwards, make sure you have downloaded my FREE mobile app. Use the links below 👇🏻 📲IOS: https://appstore.com/mentouraviation 📲Android: https://play.google.com/store/apps/details?id=com.teamta.mentouraviation If you want to join my Patreon crew and support the channel, use this link: https://www.patreon.com/mentourpilot A huge thank you to the channels which are featured in this video. Without your great content I would have a hard time explaining my points. AIRBOYD https://www.youtube.com/watch?v=XLRSUO2dRyY&t=232s https://www.youtube.com/channel/UClyDDqcDsXp3KQ7J5gyIMuQ Mathaderlie https://youtu.be/837tjPv4iys https://www.youtube.com/channel/UCB_F3ZDM-QPWk0BLbD1l7oA Boeing https://youtu.be/nmefnkTvWIw https://www.youtube.com/channel/UC9IEkprr46ScglWU79HF5qQ Stanford university school of engineering https://youtu.be/cjoz5tncRUs MiamiAirborne https://youtu.be/Db1u6I_lukU