Along the Limmat River in Zürich, the Swissmill building is in operation at full clip around the clock. Originally a textile factory, the site at Sihlquai was converted to a grain mill in 1843. By 1876 it was considered the most modern milling facility on the European continent with its use of chilled cast iron rollers for cracking open wheat grain and separating the outer layer of bran. Now a patchwork of buildings that harken back to different eras of growth and expansion, the Stadtmühle  (or City Mill) exterior conceals a complex, digitally controlled high-tech organism that vibrates with the mechanical rhythms of modern production.   …