Tiny solar-powered flyer weighs less than a paper plane [video]

For once the video shows a real prototype. At the moment it can't be steered but the whole thing works by virtue of rotors made out of solar cells and extreme light weight. Worth a watch.

Related: <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=40989075">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=40989075</a>