Michael Polanyi

Michael Polanyi (1891–1976) was a Hungarian-British polymath whose career spanned physical chemistry, economics, and philosophy, with pioneering work in adsorption theory and the epistemology of science. Born in Budapest to a Jewish family, he earned an M.D. in 1913 and a Ph.D. in physical chemistry in 1917 from the University of Budapest, later serving as a medical officer in World War I before advancing research at the Kaiser Wilhelm Institute in Berlin.

In physical chemistry, Polanyi contributed to understanding gas adsorption forces through collaboration with Fritz London in 1930, proposed hypotheses on long-chain molecules in 1921, introduced the concept of dislocations in crystal lattices in 1932, and co-developed semi-empirical methods for activation energies with Henry Eyring in 1929. His career shifted amid Nazi persecution, leading him to Manchester in 1933 and eventually to philosophy, where he critiqued the reduction of scientific method to explicit rules, arguing instead for tacit knowing rooted in personal commitment and apprenticeship within scientific communities.

Michael Polanyi was born Mihály Pollacsek on March 11, 1891, in Budapest, Hungary, to Mihály Pollacsek, a civil engineer, and Cecília Pollacsek (née Wohl), into a family of secular Jews who later adopted the Magyarized surname Polányi to facilitate integration into Hungarian society. His father, descended from prosperous Jewish mill-owners, had trained in civil engineering in Switzerland and Germany before working for the Swiss National Railways and establishing himself as a railroad financier in Budapest. Polanyi's mother, daughter of Andreas Wohl—a liberal Jewish scholar from Vilna who rejected a chief rabbinate—hosted an intellectual salon that attracted progressive thinkers, reflecting the family's non-traditional Jewish heritage and emphasis on cultural liberalism.