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- Q250525 description "Hungarian engineer".
- Q250525 description "Hungarian engineer".
- Q250525 subject Q6646696.
- Q250525 subject Q6937165.
- Q250525 subject Q7003889.
- Q250525 subject Q7012191.
- Q250525 abstract "Engineer Pál Selényi (1884-1954)was known as the "father of xerography" at Tungsram corporation. He is also known as Paul Selenyi. Chester Carlson read one of Selenyi's papers in the 1930s and was very greatly impressed; subsequently, he invested in a big effort to develop xerography. That may be the reason why Selenyi was known as the "father of xerography" by some people. Pál Selényi studied physics and mathematics at the Budapest University.After finishing his studies, Selényi started to work for the newly created Applied Physics Department of the University.From his early works, Selényi was engaged in studying the nature of light. One well-known result of this period is Selényi's wide-angle interference experiment whose foundations go back to the discovery of the photoeffect (photo-electric effect), by Albert Einstein, and Hertz's experiments on the reflection of radio waves.Einstein's hypothesis was: elementary light sources emit electromagnetic waves along small solid angles, which had been supported by the fact that interference is simplest to achieve with lightwaves intersecting one another under small angles. The Young experiment is an example: light passing through a pair of neighboring holes (in close proximity) results in the appearance of interference patterns on a screen behind the holes, but only if the angle covered by the incoming beams does not exceed a couple of degrees of angular width.".
- Q250525 birthDate "1884".
- Q250525 birthYear "1884".
- Q250525 deathDate "1954".
- Q250525 deathYear "1954".
- Q250525 thumbnail Selényi_Pál_001.jpg?width=300.
- Q250525 wikiPageExternalLink bor.html.
- Q250525 wikiPageWikiLink Q1753339.
- Q250525 wikiPageWikiLink Q28.
- Q250525 wikiPageWikiLink Q390287.
- Q250525 wikiPageWikiLink Q468452.
- Q250525 wikiPageWikiLink Q6646696.
- Q250525 wikiPageWikiLink Q689510.
- Q250525 wikiPageWikiLink Q6937165.
- Q250525 wikiPageWikiLink Q7003889.
- Q250525 wikiPageWikiLink Q7012191.
- Q250525 wikiPageWikiLink Q81581.
- Q250525 wikiPageWikiLink Q83213.
- Q250525 wikiPageWikiLink Q937.
- Q250525 dateOfBirth "1884".
- Q250525 dateOfDeath "1954".
- Q250525 name "Selenyi, Pal".
- Q250525 shortDescription "Hungarian engineer".
- Q250525 type Person.
- Q250525 type Agent.
- Q250525 type Person.
- Q250525 type Agent.
- Q250525 type NaturalPerson.
- Q250525 type Thing.
- Q250525 type Q215627.
- Q250525 type Q5.
- Q250525 type Person.
- Q250525 comment "Engineer Pál Selényi (1884-1954)was known as the "father of xerography" at Tungsram corporation. He is also known as Paul Selenyi. Chester Carlson read one of Selenyi's papers in the 1930s and was very greatly impressed; subsequently, he invested in a big effort to develop xerography. That may be the reason why Selenyi was known as the "father of xerography" by some people.".
- Q250525 label "Pál Selényi".
- Q250525 depiction Selényi_Pál_001.jpg.
- Q250525 givenName "Pal".
- Q250525 name "Pal Selenyi".
- Q250525 name "Selenyi, Pal".
- Q250525 surname "Selenyi".