mach
mok
- n Austrian physicist and philosopher who introduced the Mach number and who founded logical positivism (1838-1916)
- You g-et up to altitude and soar above earth at mach 7 -- 10 000 miles an hour or so - you're already in Tokyo.
- A "mach meter," an aerial speedometer, in view of passengers in the first few rows reached mach 1.
- During both flights it reached "mach .