“My goal is the reindustrialization of Pa., especially areas like Pittsburgh, Allegheny County... that were hit so hard by the shutdown of the steel industry.”—Department of Community and Economic Development Secretary C. Alan Walker. Read more from “Ethane cracking plant in region to bring ‘thousands’ of jobs” on Pipeline.
I Love Hot Air Balloons! (Chemistry, Not So Much)
“A lunatic professor is trying to construct a “hot air” balloon filled with ethane. What is the minimum temperature (in K) to which the ethane in the balloon needs to be heated so that the “hot ethane” balloon will rise? Assume that the balloon itself is weightless to simplify the calculations.”