Dec 17, 1903: the first powered #flight by the Wright brothers happened 115 years ago - and just under 44 years later the first #supersonic flight. What amazingly fast development accelerated by necessities of two world wars. Cool photo: https://twitter.com/jonostrower/status/1074723293251350529?s=46&t=8f3D_smYsYDDdcIBXHyLGA #wrightbrothers