This is too wonderful.
@Cmdr_Hadfield is the best thing to happen to manned space flight since Apollo 11, basically, isn’t he?
Today’s ‘#Dambusters’ Lancaster flypast at Ladybower, Derbyshire. Lest we forget any of the fallen.
We never sit here under the weight of all this air, the 5 x 10^18 kg of atmosphere that sits above everyone on Earth, and say “Gosh, that sure is heavy!”
You don’t realize just how powerful that 1 bar (~100 kPa) of pressure is until a train car is filled with steam, allowed to cool, and then implodes ohmygod did that just happen?