melting a rock with sunshine: https://www.youtube.com/watch?v=z0_nuvPKIi8
On Sat, May 21, 2016 at 9:55 AM, Ken Hohhof <[email protected]> wrote: > > http://arstechnica.com/science/2016/05/heat-from-misaligned-mirrors-at-solar-thermal-plant-causes-electrical-fire/ > >
