Ernst Mach papers
Ernst Mach was an Austrian-Czech physicist and philosopher (born 1838 died 1916) who made contributions to physics and the philosophy of science. Mach was the first to study super-sonic motion. Einstein credited him as the philosophical forerunner to the theory of relativity with his critique of Newtonian physics. He also made contributions to psychology with his study of how external stimuli like sound, color, space, and time are internalized, with some in the field of psychology crediting him with the founding of Gestalt theory. The scrapbook of Ernst Mach papers held in the Dibner Library of Science and Technology contains: tipped in printed booklets, 99 letters, hand-drawn diagrams, manuscripts, newspaper clippings, and journal articles.