depth hardness measurement was conceived in 1908 by Viennese professor Paul Ludwik in his book Die Kegelprobe (crudely, "the cone test"). The differential-depth...

from a multilingual area. His name is transliterated as follows: English: Ludwik Lejzer Zamenhof – English pronunciation: /ˈzæmənhɒf, ˈzæmɪnhɒf, -nɒv, -nɒf/...

Ludwik Witold Rajchman (Polish pronunciation: [ˈlud.vik ˈfi.tɔld ˈraj.xman]; 1 November 1881 – 13 July 1965) was a Polish physician and bacteriologist...

Ludwik Mzyk (22 April 1905 – 20 February 1940) a priest of the Society of the Divine Word (SVD) and one of the 108 Blessed Polish Martyrs beatified on...

Ludwik Władysław Franciszek Kondratowicz (29 September 1823 – 15 September 1862), better known as Władysław Syrokomla, was a Polish romantic poet, writer...

Ludwik "Hanka" Kalkstein, (13 March 1920, in Warsaw – 26 October 1994, in Munich), was a Polish Nazi collaborator . He worked as a Nazi police agent during...

Paul Johannes Tillich (August 20, 1886 – October 22, 1965) was a German-American Christian existentialist philosopher, Christian socialist, and Lutheran...

Johannes Ruths, 1930 Johann Kremenezky, 1930 Hermann Michel [de], 1930 Paul Ludwik, 1929 Fritz Haber, 1929 Mirko Gottfried Ros, 1928 Friedrich Gebers, 1928...

Ludwik Gross (September 11, 1904 – July 19, 1999) was a Polish-American virologist who discovered two different tumor viruses—murine leukemia virus and...

Ludwik Janusz Peretz (9 January 1923 – 1 December 2022) was a Polish-born French architect. Peretz began his university studies at the Warsaw University...