Mach number

As technology advanced so did the sped with which humans could move. Mach studied the relationship between speed of an object and the speed of sound through air, identifying critical changes in air resistance. It led to important advancements in aerodynamics and high-speed travel.
 Ernst Mach Austria 1887 Mach number

As technology advanced so did the sped with which humans could move. Mach studied the relationship between speed of an object and the speed of sound through air, identifying critical changes in air resistance. It led to important advancements in aerodynamics and high-speed travel.