Nombor Mach: Perbezaan antara semakan

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Nombor Mach dinamakan sempena ahli fizik dan falsafah Czech/Austria iaitu [[Ernst Mach]]. Tidak seperti unit-unit pengukuran yang lain, berbanding Nombor Mach, angkanya diletakkan ''selepas'' unit; contohnya dua Mach ditulis dengan "Mach 2" bukannya "2 Mach".
The Mach number is named after Czech/Austrian physicist and philosopher [[Ernst Mach]]. Unlike most units of measure, with Mach, the number comes ''after'' the unit; the second Mach number is "Mach 2" instead of "2 Mach" (or Machs). This is somewhat reminiscent of the early modern ocean sounding unit "mark" (a synonym for [[fathom]]), which was also unit-first, and may have influenced the use of the term Mach. In the decade preceding [[Sound barrier#Attempts to break the sound barrier|man's flying faster than sound]], aeronautical engineers referred to the speed of sound as ''Mach's number'', never "Mach 1".<ref>Bodie, Warren M., ''The Lockheed P-38 Lightning'', Widewing Publications ISBN 0-9629359-0-5</ref>
 
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