CURRENT AFFAIRS

Detailed explanation-1: -Silica Aerogel is the lightest synthetic material ever made by man.

Detailed explanation-2: -It looks like frozen smoke. And it’s the lightest solid material on the planet. Aerogel insulates space suits, makes tennis rackets stronger and could be used one day to clean up oil spills. Lawrence Livermore National Laboratory scientist Alex Gash shows us some remarkable properties of this truly unique substance.

Detailed explanation-3: -Aero-graphene is 99.8% Air, Strong like Steel, and the World’s Lightest Material. A Graphene Aerogel is 12% lighter than the last lightest material recorded and seven times lighter than air. It is so light and dense that it can be located on top of the petals of a flower or on a cotton ball. It is in Elastic form.

Detailed explanation-4: -Aerographene or graphene aerogel is, as of April 2020, the least dense solid known, at 160 g/m3 (0.0100 lb/cu ft; 0.16 mg/cm3; 4.3 oz/cu yd), less than helium.

Detailed explanation-5: -Since their invention, aerogels have primarily been made of silica. The silica is combined with a solvent to create a gel. This gel is then subjected to supercritical fluid extraction. This supercritical fluid extraction involves introducing liquid carbon dioxide into the gel.