A small parrotlet wearing 3D printed goggles just proved that everything we've believed about the aerodynamics of bird flight is wrong. Stanford researchers trained Obi, a Pacific parrotlet, to fly through a laser sheet that illuminated tiny, nontoxic aerosol particles in order to study the vortices created by the bird's flight. The results of the experiment, published in a new study entitled "Lift calculations based on accepted wake models for animal flight are inconsistent and sensitive to vortex dynamics," could have a significant effect on the design of drones and other flying robots. Read more at 3DPrint.com: https://3dprint.com/157879/parrotlet...inted-goggles/