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  • Principal investigator

    Principal investigator

    In many countries, the term principal investigator (PI) refers to the holder of an independent grant and the lead researcher for the grant project, usually in the sciences, such as a laboratory stu

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  • Spanish Renaissance

    Spanish Renaissance

    This article needs additional citations for verification.Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: "Sp

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  • Postdoctoral research

    Postdoctoral research

    A postdoctoral fellow, postdoctoral researcher, or simply postdoc, is a person professionally conducting research after the completion of their doctoral studies (typically a PhD). Postdocs most com

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  • Zone System

    Zone System

    The Zone System is a photographic technique for determining optimal film exposure and development, formulated by Ansel Adams and Fred Archer. Adams described the Zone System as "[...] not an invent

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  • Robert Somerville

    Robert Somerville

    Robert Eugene Somerville (born 1940) was, until his retirement, the Ada Byron Bampton Tremaine Professor of Religion and Professor of History at Columbia University, New York. Since July 1, 2020, h

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  • Macro photography

    Macro photography

    Macro photography (or photomacrography or macrography, and sometimes macrophotography) is extreme close-up photography, usually of very small subjects and living organisms like insects, in which th

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  • Papal decretal

    Papal decretal

    This article needs additional citations for verification.Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: "De

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  • Akele Guzai

    Akele Guzai

    Akele Guzai (Tigrinya: ምድረ ቡር) was a province in the interior of Eritrea until 1996, when the newly independent national government consolidated all provinces into the Northern Red Sea and Debub (S

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  • Focus stacking

    Focus stacking

    Focus stacking – also called focal plane merging, z-stacking,focus bracketing or focus blending – is a digital image processing technique which combines multiple images taken at different focus dis

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  • Mathematical physics

    Mathematical physics

    Mathematical physics is the development of mathematical methods for application to problems in physics. The Journal of Mathematical Physics defines the field as "the application of mathematics to p

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