Ernst Mach (Mach Speed)

Ernst Mach,  (born February 18, 1838 Austrian Empire—died February 19, 1916) Austrian physicist and philosopher who established important principles of optics, mechanics, and wave dynamics and who supported the view that all knowledge is a conceptual organization of the data of sensory experience (or observation).
Mach was educated at home until the age of 14, then went briefly to high school) before entering the University of Vienna at 17.  During the 1860s he discovered the physiological phenomenon that has come to be called Mach’s bands, the tendency of the human eye to see bright or dark bands near the boundaries between areas of sharply differing illumination.
Mach left Graz to become professor of experimental physics at the Charles University in Prague in 1867, remaining there for the next 28 years. There he conducted studies on kinesthetic sensation, the feeling associated with movement and acceleration. Between 1873 and 1893 he developed optical and photographic techniques for the measurement of sound waves and wave propagation. In 1887 he established the principles of supersonics and the Mach number—the ratio of the velocity of an object to the velocity of sound.
Mach advanced the concept that all knowledge is derived from sensation; thus, phenomena under scientific investigation can be understood only in terms of experiences, or “sensations,” present in the observation of the phenomena. This view leads to the position that no statement in natural science is admissible unless it is empirically verifiable. Mach’s exceptionally rigorous criteria of verifiability led him to reject such metaphysical concepts as absolute time and space, and prepared the way for the Einstein relativity theory.
Mach also proposed the physical principle, known as Mach’s principle, that inertia (the tendency of a body at rest to remain at rest and of a body in motion to continue in motion in the same direction) results from a relationship of that object with all the rest of the matter in the universe. Inertia, Mach argued, applies only as a function of the interaction between one body and other bodies in the universe, even at enormous distances. Mach’s inertial theories also were cited by Einstein as one of the inspirations for his theories of relativity.

 As a philosophical movement, Logical Positivism contributed to the rise of our current postmodern society, The ONLY ABSOLUTE TRUTH is that there are NO ABSOLUTE TRUTHS  and to the degraded position of contemporary metaphysics.
 

Mach's Principle (Newton's law of Inertia F=m.a, is established by all the matter of the universe) is sensibly and simply explained by the Metaphysics of Space and Motion and the Wave Structure of Matter. The obvious problem of the particle conception of matter is to explain how all the distant matter of the universe could instantaneously act upon a moving body here on earth. This paradox is completely resolved by the Wave Structure of Matter (WSM) which shows that all distant matter establishes its presence throughout the universe by their In-waves and Out-waves which produce a nearly uniform mass-energy density of space throughout Space.