Ernst Mach

Ernst Waldfried Josef Wenzel Mach (1838 – 1916) was an Austrian physicist and philosopher. He is remembered in the use of the term 'Mach number' in relation to supersonic speeds (i.e., Mach 1 being the speed of sound).

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Author: Keith

Former school and college science teacher, teacher educator, research supervisor, and research methods lecturer. Emeritus Professor of Science Education at the University of Cambridge. View all posts by Keith