Norbert Wiener the development of the digital theory. Wiener originated cybernetics, a formalization of the notion of feedback, with many implications for engineering, systems control, computer science, biology, philosophy, and the organization of society. Wiener's work with cybernetics influenced Gregory Bateson and Margaret Mead, and through them, anthropology, sociology, and education. A simple mathematical representation of Brownian motion, the Wiener equation, named after Wiener, assumes the current velocity of a fluid particle fluctuates randomly. For signal processing, the Wiener filter is a filter proposed by Wiener during the 1940s and published in 1942 as a classified document. Its purpose is to reduce
Alexander S. Wiener in numerous investigations by analyzing the blood (or related fluids) of those involved. Numerous articles and chapters of books with real life crime stories were written about Dr. Wiener's work in criminology. Along with his father, George Wiener, a lawyer. Wiener helped draft a new set of laws addressing the recent scientific advancements in blood identification. He was a member of the American Medical Association legal committee that sponsored blood test laws in all states, and he was the co-author of its 1935 report. His work in the genetics of the blood factors also allowed him to be of assistance