Associations to the word «Mach»
MACH, proper noun. Ernst Mach, Austrian physicist 1838 - 1916.
MACH, noun. (physics) a ratio of the speed (of an object, etc.) to the speed of sound in the fluid or other medium through which the object travels. Usually used to describe supersonic speeds.
MACH, noun. (physics) the Mach number
MACH NUMBER, noun. (physics) The ratio of the velocity of a body to that of sound in the surrounding medium.
MACH, noun. Austrian physicist and philosopher who introduced the Mach number and who founded logical positivism (1838-1916).
The chief difference between words and deeds is that words are always intended for men for their approbation, but deeds can be done only for God.