1401-1464 1404-1472 1417-1487 1769-1848) alberti archimedes augustinde austria biography béthencourtymolina christiansaints churchhistory conductors(music) harnoncourt history italy james(ingenieur knowledge kopernikus leonbattista mechanicalengineering mechanicalengineers mechanismus(maschinendynamik) nicholas perspektive renaissance switzerland technik theoryof vision visualperception watt ästhetischewahrnehmung