Technological civilization is awesome (Cont’d)
Walking on Sunshine. Austro-Athenian Empire (2010-07-09):
A solar-powered plane has just completed a 26-hour flight, the nighttime portion of the flight being powered by the daytime portion – with power to spare. With an average speed of 25 mph, solar-powered flight isn’t quite ready to render jet fuel obsolete; but it’s nice to see some progress...

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