Ernst Mach 01

Ernst Mach (1838–1916) was an Austrian physicist and philosopher, noted for his contributions to physics such as study of shock waves.

Mach's Principle was formulated by Ernst Mach, which states that all the laws of physics are determined by the global (or large-scale) distribution of matter. It is equivalent to postulating that the local inertial frame, and the inertia of any body within it, are determined by the overall distribution of matter in the Universe as a whole.[1]