John, of photobyjohnbo, wants us to “consider subjects reflecting industry or items that are mechanical in nature…. There are signs of the old ways and the new way of doing things, wherever you look.”  My first example is the wind turbines, shown in the header. Wind turns the blades which are connected to a drive shaft which is attached to an electric generator, and  electricity is produce. These turbines replaced wind mills which were used many years ago. Another mechanical example below is this vintage fire engine (pumper truck) located in Ogunquit Maine. Compare this to a much newer model truck in Charleston, South Carolina. The Southern Railway 385 Steam…