High Quality Content by WIKIPEDIA articles! Julius Pl cker (16 June 1801 - 22 May 1868) was a German mathematician and physicist. He made fundamental contributions to the field of analytical geometry and was a pioneer in the investigations of cathodeMoreHigh Quality Content by WIKIPEDIA articles! Julius Pl cker (16 June 1801 - 22 May 1868) was a German mathematician and physicist. He made fundamental contributions to the field of analytical geometry and was a pioneer in the investigations of cathode rays that led eventually to the discovery of the electron.
He also vastly extended the study of Lam curves.