Thomas Samuel Kuhn (; July 18, 1922 – June 17, 1996) was an American philosopher of science whose 1962 book The Structure of Scientific Revolutions was influential in both academic and popular circles, introducing the term paradigm shift, which has since become an English-language idiom. Kuhn made several claims concerning the progress of scientific knowledge: that scientific fields undergo periodic "paradigm shifts" rather than solely progressing in a linear and continuous way, and that these paradigm shifts open up new approaches to understanding what scientists would never have considered valid before; and that the notion of scientific truth, at any given moment, cannot be established solely by objective criteria but is defined by a consensus of a scientific community. Competing paradigms are frequently incommensurable; that is, they are competing and irreconcilable accounts of reality. Thus, our comprehension of science can never rely wholly upon "objectivity" alone. Science must account for subjective perspectives as well, since all objective conclusions are ultimately founded upon the subjective conditioning/worldview of its researchers and participants.
টমাস স্যামুয়েল কুন, थॉमस कुहन, トーマス クーン, and 33 othersΤόμας Κουν, كوهن، توماس, T. S Kuhn, 토머스 쿤, 쿤, 토마스 S., תומאס ס קון, තෝමස් කූන්, T. S. Kuhn, トーマス・クーン, Kuhn, T. S., 湯瑪斯·孔恩, Т. S. Kuhn, Томас Кун, كون، توماس, Tomass Kūns, תומאס קון, 쿤, 토머스, Kʻo-en, Kʻu-en, Thomas Kuhn, T. Kun, Kuhn, Thomas S., توماس صامويل كون, 쿤, 토마스 사무엘, Kʻung-en, Tommasu Kuhn, توماس كون, 托马斯·库恩, Thomas Samuel Kuhn, Kuhn, Thomas, Thomas S. Kuhn, توماس کوهن, Томас Сэмюэл Кун
- July 18, 1922
- June 17, 1996