Editing Samuel Langley (section)

{{Short description|American astronomer, physicist and inventor (1834–1906)}}
{{Use mdy dates|date=May 2022}}
{{Infobox officeholder
| name                = Samuel Langley
| image               = Samuel Pierpont Langley.jpg
| caption             = Langley, circa 1895
| order1              = 3rd Secretary of the
| office1             = Smithsonian Institution
| term_start1         = 1887
| term_end1           = 1906
| predecessor1        = [[Spencer Fullerton Baird]]
| order2              = 
| office2             = 
| term_start2         = 
| term_end2           = 
| predecessor2        = 
| successor2          = [[Charles Doolittle Walcott]]
| birth_date          = {{Birth date|1834|8|22}}
| birth_place         = [[Roxbury, Massachusetts]], U.S.
| death_date          = {{Death date and age|1906|2|27|1834|8|22}}
| death_place         = [[Aiken, South Carolina]], U.S.
| residence           = 
| citizenship         = 
| nationality         = American
| work_institutions   = 
| alma_mater          = 
| doctoral_advisor    = 
| doctoral_students   = 
| known_for           = [[Solar physics]]
| author_abbrev_bot   = 
| author_abbrev_zoo   = 
| influences          = 
| influenced          = 
| awards            = [[Rumford Medal]] {{small|(1886)}}<br>[[Henry Draper Medal]] {{small|(1886)}}<br>[[Janssen Medal (French Academy of Sciences)|Janssen Medal]] {{small|(1893)}}<ref>{{cite book|chapter=Tableaux des prix décernés|title=Comptes rendus hebdomadaires des séances de l'Académie des sciences|date=1894|volume=117|page=1006|chapter-url=https://books.google.com/books?id=fp9DAQAAIAAJ&pg=PA1006|last1=(France)|first1=Académie des Sciences}} (The French Academy awarded the 1893 prizes on 18 December 1893.)</ref><ref>{{cite book|chapter=Science Prizes|title=American Naturalist|publisher=U. of Chicago Press|date=1894|volume=28|page=290|chapter-url=https://books.google.com/books?id=fycuAAAAMAAJ&pg=PA290}}</ref>
| footnotes           = 
| signature           = Signature of Samuel Pierpont Langley (1834–1906).png
}}

'''Samuel Pierpont Langley''' (August 22, 1834 &ndash; February 27, 1906) was an American  [[aviation]] pioneer, [[astronomer]] and [[physicist]] who [[Invention|invented]] the [[bolometer]]. He was the third secretary of the [[Smithsonian Institution]] and a professor of astronomy at the [[University of Pittsburgh]], where he was the director of the [[Allegheny Observatory]].