Ernst Waldfried Josef Wenzel Mach (Brno, Moravia, Austrian Empire 18 February 1838 - Vaterstetten, Bavaria, German Empire 19 February 1916)
By Georgia9517
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Ernst Mach
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Mach Bands
Mach published "On the effect of the spatial distribution of the light stimulus of the retina." Before this period, optical illusions were thought to be errors in judgment or quirks of the brain. Mach is credited with the discovery of lateral inhibition in our sense organs. Therefore, with the idea that senses pre-process information before sending that information to the brain. -
Relativity Theory
Mach discovered the inertia of a body can be only ascertained if there are other masses in the universe as a measuring reference for acceleration. Mach principle is that "Only the presence of other masses produces inertia." Einstein has credited Ernst Mach as one of the influences for his theories of relativity. http://scihi.org/ernst-mach-physics-aerodynamics/ -
Hydrodynamic Concept
Mach discovers that the sense of balance comes from the brain's interpretation of the movement of the fluid within canals located in the inner ear. -Nicholas Amendolare
https://study.com/learn/lesson/physicist-ernst-mach-biography-principle.html#:~:text=Physicist%20Ernst%20Mach's%20Scientific%20Accomplishments,-Ernst%20Mach%20is&text=He%20also%20made%20anatomical%20discoveries,canals%20inside%20the%20inner%20ear. -
Established the principles of Supersonic and the Mach number.
Mach's significant contributions to understanding supersonic aerodynamics were presented in the revolutionary paper "Photgraphische Fixierung der durch Projektile in der Luft eingeleiten Vorgange." He presented this paper to the Academy of Sciences in Vienna in 1887. In his paper, Mach published the first-ever photograph of the shock waves formed by a bullet traveling faster than the speed of sound. https://youtu.be/uLrHnndL3D4?si=qyotTLdYDfzilqi0 -
Term "Mach Number" was first publicized
Swiss Engineer Jakob Ackeret publicized this name in honor of Mach during a lecture at Eidgenossiche Technishe Hochschule in Zurich. The term was not publicized until 1929 and was not included in English publications until three years later.