Boeing Airplanes @BoeingAirplanes
Vortex generators that move on their own! We're collaborating with @NASAaero on the #ecoDemonstrator 777 to test a technology that uses temperature to make these small fins on airplane wings move to improve fuel efficiency. Learn more: https://t.co/lBztOd7fiP https://t.co/B1Wm4Meo7e — PolitiTweet.org