'This Austrian physicist's name is now synonymous with a measurement of the speed of sound'
(Ernst) Mach
WORD ORIGINS: This Austrian physicists name is now synonymous with a measurement of the speed of sound
This Austrian physicist's name is now synonymous with a measurement of the speed of sound
This Austrian physicist's name is now synonymous with a measurement of the speed of sound
WORD ORIGINS
Mach
WORD ORIGINS