Cheap 'aerogel' would slash electricity needs, bomb-proof buildings
                                
                                
                                    (Newser) -
                                    Rice husks might be the key to lowering electricity use, bomb-proofing buildings and making products—from airplanes to tennis rackets—lighter. A Malaysian scientist says she’s found a cheap way to create aerogel, the world’s lightest solid, from discarded rice husks. The material combines incredible insulating power and...