These post-apocalyptic adventure seeds are great fun! Adjective agreement-seems not to follow normal rules, Tuning the lowest bass string a hair flat. What does rain 雨 have to do with mold 霉 and bad luck? And there are fairly low-tech ways of pulling the CO2 out of the gas stream, if that turns out to be necessary. What does it mean when people say "Physics break down"? How is it possible that a