Ludwig Lange (physicist)

Gustav Ludwig Lange ( born June 21, 1863 in Giessen, † July 12, 1936 in Weinsberg ) was a German physicist and psychologist.

Life

Gustav Ludwig Lange was born in 1863 as son of the philologist Christian Conrad Ludwig Lange in Giessen. He attended from 1873 the humanist Thomas School in Leipzig. From 1882 to 1885 he studied mathematics, physics, psychology, epistemology and ethics at the University of Leipzig and the University of Giessen. In Leipzig he was from 1885 to 1887 assistant of Wilhelm Wundt at the Institute for Experimental Psychology.

In 1886 he became the Dr. phil. doctorate. After that he worked on for many years with photography. He attended schools in Grönebach and Vienna. In 1890 he opened a studio in Göttingen, which was relocated in 1892 to Elberfeld. After that, he lived as a private scholar in Heilbronn. Since 1887 Lange suffered from manic depression, was treated in several hospitals and died in 1936 in the medical and nursing home Weissenhofsiedlung at the vineyard.

Scientific Work

In 1888 he led in Leipzig by the first volitionspsychologische experiment.

Particularly well known was long by introduction of operational terms such as inertial and Inertialzeitskala (1885 ), which he wanted to put in place of Newton's " absolute space and absolute time." He followed this previous experiments of Carl Gottfried Neumann (body Alpha ) or Heinrich Streintz (Fundamental body ). Long design was later for the formulation of relativistic mechanics, in which this definition was expanded, of great importance. Long definition read:

" Inertial system is called a system of quality, that with respect thereto at a point converging steadily described paths of three at the same time by the same points in space projected and immediately via authorized points ( although not to lie in a straight line ) are all straight. "

Writings (selection )

• Again using the law of inertia. In: Philosophical Studies 2 (1885), 539-545.
• The historical development of the concept of movement and its anticipated end result. In: Philosophical Studies 3 (1886 ), 337-419.
• New experiments about the operation of the simple reaction to sensory impressions, First Article. In: Philosophical Studies 4 (1988 ), 479-510.
• A chronograph together with Control apparatus for very precise time measurements. In: Philosophical Studies 4 (1988 ), 457-470.
• About the Maßprincip of psychophysics and the algorithm of sensation sizes. In: Philosophical Studies 10 (1894 ), 125-139.
• The inertial system before the forum of scientific research. In: Philosophical Studies 20 (1902 ), 1-71.