Nd:GdVO4 Crystal and Devices - United Crystals Company. Solarbotics. Cool Gadgets at the Right Price - Worldwide Free Shipping. Coupons and Deals: Save money with hot deals and coupon codes. Aerogel. Aerogel What is Aerogel? Developed by NASA, Aerogel is the lightest solid known to exist. Developed by NASA, Aerogel (Silica Aerogel to be precise) is made from Silicon Dioxide, the same material as ordinary glass, only it is 1,000 times less dense. A truly remarkable material, It holds an unbelievable 15 entries in the Guinness Book of World Records, including best insulator and lowest density solid.
Composed of amorphous Silicon Dioxide and 99.8% air, its melting point is 2,200 degrees F (1,200 degrees C). Being the world's lightest known solid, it weighs only three times that of air (with a density of just 3 milligrams per cubic centimeter). When handled, Aerogel feels like a very light, hard foam. The one drawback about this amazing material is its price. TechBargains: Best Deals, Dell Coupons, Cheap Laptops, Computer Sales.