Buenos Aires, Argentina-based designer Santiago Muros Cortés recently unveiled the Solar Hourglass, a proposal for an enormous, hourglass-shaped structure that will use solar energy to produce enough electricity for up to 860 homes. Constructed from primarily recycled steel and aluminum, the impressive structure uses “heliostat” mirrors to reflect solar heat down the neck of the installation, where it will be stored as concentrated energy. Cortés’ design has been named the winner of the 2014 Land Art Generator Initiative, aims to oversee the design and construction of public art installations that are not only aesthetically striking, but that also generate clean and renewable energy to provide power to thousands of homes around the world. (source).