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General Crossword Questions for “mach”
Ratio of a body's speed to the speed of sound
Number referring to speed of sound
The Mach number is named after Austrian physicist and philosopher Ernst Mach. Because the Mach number is often viewed as a dimensionless quantity rather than a unit of measure, with Mach, the number comes after the unit; the second Mach number is "Mach 2" instead of "2 Mach" (or Machs). — “Mach number - Wikipedia, the free encyclopedia”, en.wikipedia.org
Hyperlinked biography on the physicist who studied interference, diffraction, polarization, and refraction of light in different media under external influences. — “Ernst Mach - Wikipedia”, en.wikipedia.org
Mach was developed as a replacement for the kernel in the BSD version of UNIX, so no new operating system would have to be designed around it. Mach is the logical successor to Carnegie Mellon's Accent kernel. The lead developer on the Mach project,. — “Mach (kernel) - Wikipedia, the free encyclopedia”, en.wikipedia.org