This is so cool! A giant marble that can harvest energy. It can do it with the sun, but it can also do it with the moon. It’s been created by Barcelona based architects. Andre Broessel, the architect and designer, says his spherical, sun-tracking glass globe is able to concentrate sunlight and moonlight up to 10,000 times and that the system is 35 percent more efficient than photovoltaic designs that track the sun. This is over at news.discovery.com.