Ernst Mach

Ernst Mach
Born	Ernst Waldfried Josef Wenzel Mach 18 February 1838 Brno, Moravia, Austrian Empire
Died	19 February 1916(1916-02-19) (aged 78) Vaterstetten, Bavaria, German Empire
Citizenship	Austrian
Education	University of Vienna (PhD, 1860; Dr. phil. hab, 1861)
Known for	Mach band Mach diamonds Mach number Mach reflection Mach wave Mach's principle Criticism of Newton's bucket argument[1] Empirio-criticism Oblique effect Relationalism Shock waves Stereokinetic stimulus
Scientific career
Fields	Physicist
Institutions	University of Graz Charles-Ferdinand University (Prague) University of Vienna
Thesis	Über elektrische Ladungen und Induktion  (1860)
Doctoral advisor	Andreas von Ettingshausen
Doctoral students	Heinrich Gomperz Ottokar Tumlirz
Other notable students	Andrija Mohorovičić
Signature
Notes
He was the godfather of Wolfgang Pauli. The Mach–Zehnder interferometer is named after his son Ludwig Mach, who was also a physicist.

Ernst Waldfried Josef Wenzel Mach (/mɑːx/ MAHKH; German: [ɛʁnst ˈmax]; 18 February 1838 – 19 February 1916) was a physicist and philosopher from the Austrian Empire, who contributed to 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 honour. As a philosopher of science, he was a major influence on logical positivism and American pragmatism.^[2] Through his criticism of Isaac Newton's theories of space and time, he foreshadowed Albert Einstein's theory of relativity.^[3]