After seven years of tinkering, they arrived at a machine with a deceptively simple design: Solar Impulse with its sleek, clean lines, white-gloss finish and rakishly angled 208-foot wings (bent to increase the plane's stability) resembles what you might get had Steve Jobs reimagined a child's balsa-wood glider in giant form.

WSJ: A Solar-Powered Plane Travels Light | WSJ. Magazine May 2013