Topical Terminology > Mach, Ernst (1838-1916)
Mach, Ernst (1838-1916)
For Mach, Ernst (1838-1916) we have a term and definition in Airfoil.
Mach, Ernst (1838-1916) (Airfoil) 
Born in Austria, he became became a professor in Prague in 1867. There he worked as a Physicist and Philosopher for 28 years. He was one of the first who made supersonic flow visible and who understood the importance of the speed of sound for supersonic flows.
In honor of him, the ratio v/a is called Mach number (where a is the speed of sound, which is about 340 m/s at sea level).
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