Nils Alwall, (1904-1986), Sweden – the dialysis machine Archimedes – (circa 287 BC-212 BC), Greece – various machines Manfred von Ardenne, (1907-1997), Germany – elektron microscope and various technology inventions William George Armstrong, (1810-1900), England – hydraulic crane Joseph Aspdin, (1788-1855), England – artificial cement John Vincent Atanasoff, (1903-1995), Bulgaria – modern computer B Charles [...]