Brad Meltzer's Decoded, (or simply Decoded), is an American mystery and conspiracy theory investigation television series, produced by Go Go Luckey and Berman/Braun, that premiered December 2, 2010 on the History channel. The series is hosted bypolitical thriller author and non-fiction writer Brad Meltzer and follows a team of investigators who try to determine the meanings behind various symbolism, alleged secret codes and conspiracies that surround us everyday.
Aerogel is a synthetic porous material derived from a gel, in which the liquid component of the gel has been replaced with a gas. The result is a solid with extremely low density and thermal conductivity. It is nicknamed frozen smoke, solid smoke, solid air or blue smoke owing to itstranslucent nature and the way light scatters in the material; however, it feels like expanded polystyrene (styrofoam) to the touch.
Aerogels are produced by extracting the liquid component of a gel through supercritical drying. This allows the liquid to be slowly drawn off without causing the solid matrix in the gel to collapse from capillary action, as would happen with conventional evaporation. The first aerogels were produced from silica gels. Kistler's later work involved aerogels based on alumina, chromia andtin oxide. Carbon aerogels were first developed in the late 1980s.