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- Mach Number Explained: What It Is and Why Pilots Use It
Learn what Mach number is, how it relates to the speed of sound, and why understanding Mach number matters
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- Mach number | Description Facts | Britannica
Mach number, in fluid mechanics, ratio of the velocity of a fluid to the velocity of sound in that fluid, named after Ernst Mach (1838–1916), an Austrian physicist and philosopher
- Role of the Mach Number - Glenn Research Center | NASA
The Mach number is the ratio of the speed of the aircraft, or the speed of the gas, to the speed of sound in the gas The speed of sound is equal to the speed of transmission of small, isentropic disturbances in the flow
- Mach Number - NASA
Because of the importance of this speed ratio, aerodynamicists have designated it with a special parameter called the Mach number in honor of Ernst Mach, a late 19th century physicist who studied gas dynamics
- Mach number - Simple English Wikipedia, the free encyclopedia
When writing a speed as a Mach number, the number comes after "Mach " [2] For example, the Concorde airplane could fly at Mach 2, and a satellite re-enters the Earth's atmosphere at about Mach 25
- Mach Number - NASA
This page shows an interactive Java applet which calculates the speed of sound and the mach number for an input velocity and altitude
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