. . "Mach, Ernst"@en . . "1916-02-19Z"^^ . . . . . . . . . . . . "Austrian physicist and philosopher" . "Ernst Mach"@en . . "Ernst Waldfried Josef Wenzel Mach (/\u02C8m\u0251\u02D0x/; German: [\u02C8\u025B\u0250\u032Fnst ma\u03C7]; February 18, 1838 \u2013 February 19, 1916) was an Austrian physicist and philosopher, noted for his contributions to physics such as the Mach number and the study of shock waves. As a philosopher of science, he was a major influence on logical positivism, American pragmatism and through his criticism of Newton, a forerunner of Einstein's relativity."@en . . . . . "1838-02-18Z"^^ . . . . "Ernst Waldfried Josef Wenzel Mach"@en . . . . . . . "1838Z"^^ . . "1916Z"^^ . . . . . . . .