Sand + Sun = Glass. This project by Markus Kayser is an amazing example of what is possible. The technology is based on sintering – a method used to create objects from powders.  Markus has created a machine that uses the sun’s energy to manufacture 3D objects using sand.  In sintering, powders are heated to just below the melting temperature, at which point the powder diffuses evenly and is bonded together forming a cermic-like...

The Californian State Senate passed a bill (SB 2X) this week which will require California utilities to get a third of their power from wind, solar, geothermal and other renewable sources by 2020. The bill was authored by Senator Joe Simitian (D-Palo Alto). Opponents said it would drive up electricity bills for homeowners and manufacturers. In a report two years ago, the California Public Utilities Commission (PUC) said energy costs would...