There was a neat "trash tv" show that I saw a while back talking about A/C's and Vacuum cleaners being invented and the "necessities" behind them (complete with

There was a neat "trash tv" show that I saw a while back talking about A/C's and Vacuum cleaners being invented and the "necessities" behind them (complete with obviously fake/acted "scenes from the 1850's with corresponding gigantic moustaches"). They talked about the rationale of A/C being related to "consistency in humidification in a printing press environment" - https://www.theatlantic.com/business/archive/2017/09/tim-harford-50-inventions/540276/ https://www.theatlantic.com/business/archive/2017/09/tim-har... Literally an "Air, Conditioner", with cooling being a byproduct. The line in the video was something like: "he recognized that you could simply dry out the air completely, and _then_ re-introduce the appropriate amount of humidity". To dry it out, you cool it down and "condense" the humidity. This seems like a neat continuation of the idea: Dry out the air before you cool it, and effectively time-shifting (and having separate systems) for the drying, the cooling, and the baking/restoration of desiccant.