Heinrich Streintz, Date of Birth, Place of Birth, Date of Death
TweetHeinrich Streintz
Austrian physician
Date of Birth: 
Place of Birth: Vienna, Austria
About Heinrich Streintz
- Heinrich Streintz (May 7, 1848 in Vienna – November 11, 1892) was an Austrian physicist. Due to the frequent diseases of their son, the parents of Streintz moved to Graz.
- There, he visited High School which he passed with great success in 1868.
- Soon the mathematical abilities of Streintz were discovered, so he occupied the subjects mathematics, physics and chemistry at the University of Graz.
- Temporarily he studied also in Leipzig, Munich, and Zurich.
- In Graz he attained a doctorate in 1872, and then he studied for some time under Gustav Robert Kirchhoff and Leo Königsberger in Heidelberg.
- Afterwards he worked in Vienna under Josef Stefan at the Physical Institute, where he finished the habilitation and became a private lecturer in 1873.
- In 1875, he was appointed as an extraordinary professor for mathematical physics to Graz, where he also became an ordinary professor in 1885.
- One of his colleagues in Graz was Ludwig Boltzmann.In his scientific work (both theoretically and experimentally) Streintz was concerned with probability theory, elasticity, and electricity.
- Streintz also wrote many abstracts and reviews for the Deutsche Literaturzeitung and for Austrian High Schools.
- However, his most important paper was "The physical foundations of mechanics" (German: Die physikalischen Grundlagen der Mechanik, 1883), where he criticized Newton's definitions of inertia, and introduced the expression "Fundamental body" (German: Fundamentalkörper) and "Fundamental Coordinate System" (German: Fundamental-Koordinatensystem), by which inertial motion should be defined more exactly.
- Similar considerations led shortly thereafter (1885) to the introduction of the term inertial frame of reference by Ludwig Lange.
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