I got a alternate tech/science question. Refrigeration is achived by pumping chemicals trough tubes and by letting it expand at a certain point. (I have to admit I need to refresh the details). The way we do it is using electric power. However, I see no reason that running water, muscle power or even wind can't pump a chemical trough a pipe.
Refrigeration would be nice in temperate climate.
So what is the earliest date somebody can put something like this together?
Refrigeration would be nice in temperate climate.
So what is the earliest date somebody can put something like this together?