getting water from air

in 2011 an Australian inventor won the James Dyson Award for a device that cools the air using underground coils, so you only need enough energy to pump the air down a pipe. Another low energy technique is that used in the Atacama Desert in Chile, and is basically just a piece of mesh strung between two poles, with a trough under it. They get a fog too, and as it flows through the mesh, drops of water condense and run down into the trough. But NBD Nano claim that the beetle’s skin is sev...

 An Experiment in Evaporation and Condensation finds Eleme...

Salt water when it turns into vapour becomes sweet, and the vapour does not form salt water when it condenses again. This I know by experiment. The same thing is true in every case of the kind: wine and all fluids that evaporate and condense back into a liquid state become water. They all are water modified by a certain admixture, the nature of which determines their flavour.