Mathematician and physicist Julius Pl�cker extended the study of Lam� curves and introduced modern abridged algebraic notation. His name is referenced in Pl�cker equations on the order and class of a curve, Pl�cker coordinates in geometry, and Pl�cker embedding and the Pl�cker formula in mathematics. With Heinrich Geissler he constructed the first modern luminous gas discharge tubes, researched magnetic effects on the electric discharge in rarefied gases, discovered the fluorescent glow later identified as being caused by cathode rays, and noted how these rays could be controlled. His students included cathode ray physicist Johann Hittorf.
[1] Often cited as 16-Jun-1801, but 16-Jul-1801 is engraved on Pl�cker's tombstone.Wife: (married, one son)
High School: Düsseldorf Gymnasium, Düsseldorf, Germany
University: University of Bonn
University: University of Heidelberg
University: University of Berlin
University: Geometry, University of Paris
University: PhD Mathematics, University of Marburg (1823)
Teacher: Mathematics, University of Bonn (1824-28)
Professor: Mathematics, University of Bonn (1828-33)
Professor: Mathematics, University of Berlin (1833-34)
Teacher: Friedrich Wilhelm Gymnasium, Berlin, Germany (1833-34)
Professor: Mathematics, University of Halle (1834-36)
Professor: Mathematics, University of Bonn (1936-47)
Professor: Physics, University of Bonn (1947-68)
Copley Medal 1866
Royal Society 1855
French Ancestry
German Ancestry
Author of books:
Analytisch-Geometrische Entwickelungen (Developments in Analytical Geometry) (1828)
System der Analytischen Geometrie (System of Analytical Geometry) (1835)
Theorie der Algebraischen Kurven (Theory of Algebraic Curves) (1839)
Neue Geometrie des Raumes (New Geometry of Space) (1868)
