Mach

Jet velocity unit

Mach is a unit expressing the ratio of an object's speed to the speed of sound.

At Mach 1, something travels at the speed of sound; at Mach 2, twice the speed of sound.

The term appears mainly in aviation and aerospace contexts: The jet reached Mach 3.

Named for physicist Ernst Mach.

speed

supersonic

Exceeding audio velocity

velocity · airspeed · sound barrier · shock wave · aerodynamics · compressibility · flight · jet · aircraft · Concorde

eponym

physicist

Scientist of matter and energy

positivism · philosophy of science · empiricism

computing

Apple

Cupertino tech giant

  • processorComponent that executes instructions
  • PowerPCRISC-based microprocessor architecture
  • chipSmall broken-off piece

architecture · CPU · computer · Macintosh · microkernel · operating system · Carnegie Mellon · macOS · iOS · kernel

Categories
Opposites
speed regime

Machsubsonic

Below sound's speed

stationary · standstill · rest · crawl · creep

velocity measurement type

Machmiles per hour

Speed unit, American roads

kilometers per hour · feet per second · knots · ground speed · airspeed

Phrases
Family

machine, machinery, machines, machination, machinations, machinate, Mach number

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Rated G