Jump to content

Pál Selényi: Difference between revisions

From Wikipedia, the free encyclopedia
Browse history interactively
← Previous edit
Content deleted Content added
VisualWikitext
MarshBot (talk | contribs)
50,214 edits
Adding {{linkless}} template to orphan article
− 2 categories; ± 2 categories using HotCat
 
(29 intermediate revisions by 20 users not shown)
Line 1: Line 1:
{{Short description|Hungarian engineer}}
{{linkless|November 2006}}
[[File:Selényi Pál 001.jpg|thumb|right|200px|Pál Selényi]]
Engineer '''Pál Selényi''' (1884-1954)
<ref name=HunInvent2>
Engineer '''Pál Selényi''' (17 November 1884 – 21 March 1954)<ref name=HunInvent2>
"Fizikai Szemle 1999/5 - Zsolt Bor: OPTICS BY HUNGARIANS" (with Pál Selényi),
"Fizikai Szemle 1999/5 - Zsolt Bor: OPTICS BY HUNGARIANS" (with Pál Selényi),
József Attila University, [[Szeged]], [[Hungary]], 1999, webpage:
József Attila University, [[Szeged]], [[Hungary]], 1999, webpage:
[http://www.kfki.hu/fszemle/archivum/fsz9905/bor.html KFKI-Hungary-Bor].
[http://www.kfki.hu/fszemle/archivum/fsz9905/bor.html KFKI-Hungary-Bor].
</ref>
</ref>
was known as the "father of [[xerography]]" at [[Tungsram]] corporation.
was known as the "father of [[xerography]]" at [[Tungsram]] corporation.<ref name=GEmillner>"GE Lighting 2" (including Pál Selényi),
<ref name=GEmillner>
"GE Lighting 2" (including Pál Selényi),
Rövid Történet, GE Lighting [[Tungsram]], 1996, webpage:
Rövid Történet, GE Lighting [[Tungsram]], 1996, webpage:
[http://www.tungsram.hu/tungsram/downloads/tungsram/tu_short_history_1896-1996.pdf Tungsram-History].
[http://www.tungsram.hu/tungsram/downloads/tungsram/tu_short_history_1896-1996.pdf Tungsram-History] {{Webarchive|url=https://web.archive.org/web/20050530094858/http://www.tungsram.hu/tungsram/downloads/tungsram/tu_short_history_1896-1996.pdf |date=2005-05-30 }}.</ref>
</ref>


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]].<ref name=HunInvent2/>
Pál Selényi studied physics and mathematics at the [[Budapest University]].<ref name=HunInvent2/>
After finishing his studies, Selényi started to work for the newly created Applied Physics Department of the 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.<ref name=HunInvent2/> 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.<ref name=HunInvent2/>
From his early works, Selényi was engaged in studying the nature of light.<ref name=HunInvent2/> 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.<ref name=HunInvent2/>


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.<ref name=HunInvent2/> 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.<ref name=HunInvent2/>
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.<ref name=HunInvent2/> 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.<ref name=HunInvent2/>


== Notes ==
== Notes ==
{{reflist}}
<references/>


== References ==
==References==
* "OPTICS BY HUNGARIANS" (including Pál Selényi), Zsolt Bor, Dept. of Optics and Quantum Electronics, József Attila University, [[Szeged]], [[Hungary]], May 1999, webpage: [http://www.kfki.hu/fszemle/archivum/fsz9905/bor.html KFKI-Hungary-Bor].
* "OPTICS BY HUNGARIANS" (including Pál Selényi), Zsolt Bor, Dept. of Optics and Quantum Electronics, József Attila University, [[Szeged]], [[Hungary]], May 1999, webpage: [http://www.kfki.hu/fszemle/archivum/fsz9905/bor.html KFKI-Hungary-Bor].


== External links ==
==External links==
* [http://www.kfki.hu/fszemle/archivum/fsz9905/bor.html "OPTICS BY HUNGARIANS"] (including Pál Selényi), Zsolt Bor, Dept. of Optics and Quantum Electronics, József Attila University, [[Szeged]], [[Hungary]], May 1999.
* [http://www.kfki.hu/fszemle/archivum/fsz9905/bor.html "OPTICS BY HUNGARIANS"] (including Pál Selényi), Zsolt Bor, Dept. of Optics and Quantum Electronics, József Attila University, [[Szeged]], [[Hungary]], May 1999.


{{Authority control}}
⚫
[[Category:Hungarian inventors|Selényi, Pál]]
⚫
[[Category:Hungarian engineers|Selényi, Pál]]


{{DEFAULTSORT:Selenyi, Pal}}
[[de:Pál Selényi]]
⚫
[[Category:20th-century Hungarian inventors]]
[[hu:Pál Selényi]]
⚫
[[Category:20th-century Hungarian engineers]]
[[Category:1884 births]]
[[Category:1954 deaths]]




{{engineer-stub}}
{{Hungary-engineer-stub}}
{{Hungary-bio-stub}}

Latest revision as of 10:06, 15 June 2021

Pál Selényi

Engineer Pál Selényi (17 November 1884 – 21 March 1954)[1] was known as the "father of xerography" at Tungsram corporation.[2]

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.[1] 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.[1] 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.[1]

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.[1] 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.[1]

Notes

[edit]
  1. ^ a b c d e f "Fizikai Szemle 1999/5 - Zsolt Bor: OPTICS BY HUNGARIANS" (with Pál Selényi), József Attila University, Szeged, Hungary, 1999, webpage: KFKI-Hungary-Bor.
  2. ^ "GE Lighting 2" (including Pál Selényi), Rövid Történet, GE Lighting Tungsram, 1996, webpage: Tungsram-History Archived 2005-05-30 at the Wayback Machine.

References

[edit]
  • "OPTICS BY HUNGARIANS" (including Pál Selényi), Zsolt Bor, Dept. of Optics and Quantum Electronics, József Attila University, Szeged, Hungary, May 1999, webpage: KFKI-Hungary-Bor.
[edit]


Stub icon 1 Stub icon 2

This article about a Hungarian engineer, inventor or industrial designer is a stub. You can help Wikipedia by expanding it.

Retrieved from "https://en.wikipedia.org/w/index.php?title=Pál_Selényi&oldid=1028669127"