Perhaps textbooks would be more interesting if everything was a story...Then again, the time I spend on Wikipedia (and getting sidetracked) would go off the charts.
Definition (source: Wikipedia): Aerogel is a manufactured material with [one of the] lowest known densities of any solid. It is derived from a gel in which the liquid component of the gel has been replaced with gas.
HA! Made my day
ReplyDelete<3 wikipedia