
Ernst Mach
Austrian physicist, philosopher and university educator (1838–1916)

Austrian physicist, philosopher and university educator (1838–1916)
Ernst Waldfried Josef Wenzel Mach ( MAHK; Austrian German: [ˈɛrnst ˈmax] ; 18 February 1838 – 19 February 1916) was an Austrian physicist and philosopher who contributed to the understanding of the physics of shock waves. The ratio of the speed of a flow or object to that of sound is named the Mach number in his honor. As a philosopher of science, he was a major influence on logical positivism and American pragmatism. Through his criticism of Isaac Newton's theories of space and time, he foreshadowed Albert Einstein's theory of relativity. (Riegler, 2012, pp. 235–256).
Read on Wikipedia · Image Heliogravüre by H. F. Jütte, Leipzig; Scanned, image processed and uploaded by Kuebi = Armin Kübelbeck, Public domain
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