Principia may refer to:
* ''
Philosophiæ Naturalis Principia Mathematica
(English: ''Mathematical Principles of Natural Philosophy'') often referred to as simply the (), is a book by Isaac Newton that expounds Newton's laws of motion and his law of universal gravitation. The ''Principia'' is written in Latin and ...
'', Isaac Newton's three-volume work about his laws of motion and universal gravitation
* Principia ( "primary buildings"), the headquarters at the center of Roman forts ( la,
castra
In the Roman Republic and the Roman Empire, the Latin word ''castrum'', plural ''castra'', was a military-related term.
In Latin usage, the singular form ''castrum'' meant 'fort', while the plural form ''castra'' meant 'camp'. The singular and ...
, links=no)
*
The Principia
The Principia is an educational institution for Christian Scientists located on two campuses in the St. Louis, Missouri metropolitan area of the United States. Principia School, located in Town and Country, West St. Louis County, serves studen ...
, an educational institution for Christian Scientists in the St. Louis, Missouri, area
**
Principia College
Principia College (Principia or Prin) is a private liberal arts college in Elsah, Illinois. It was founded in 1912 by Mary Kimball Morgan with the purpose of "serving the Cause of Christian Science." "Although the College is not affiliated wit ...
, a private four-year college in Elsah, Illinois
** Principia School, a school from early childhood to high school in the St. Louis, Missouri, area
*
''Principia'' (alga), a stem-group coralline alga
* Principia, the former name of
Zope
Zope is a family of free and open-source web application servers written in Python, and their associated online community. Zope stands for "Z Object Publishing Environment", and was the first system using the now common object publishing methodolo ...
, the "Z Object Publishing Environment"
*
2653 Principia, an asteroid named after Newton's work
*
''The Principia'' (book), by
Emanuel Swedenborg
Emanuel Swedenborg (, ; born Emanuel Swedberg; 29 March 1772) was a Swedish pluralistic-Christian theologian, scientist, philosopher and mystic. He became best known for his book on the afterlife, ''Heaven and Hell'' (1758).
Swedenborg had ...
* ''
Principia Mathematica
The ''Principia Mathematica'' (often abbreviated ''PM'') is a three-volume work on the foundations of mathematics written by mathematician–philosophers Alfred North Whitehead and Bertrand Russell and published in 1910, 1912, and 1913. ...
'', a three-volume work on the foundations of mathematics by Bertrand Russell and Alfred North Whitehead
* ''
Principia Ethica
''Principia Ethica'' is a 1903 book by the British philosopher G. E. Moore, in which the author insists on the indefinability of "good" and provides an exposition of the naturalistic fallacy. ''Principia Ethica'' was influential, and Moore's a ...
'', a book on ethics by
G. E. Moore
* ''
Principia Discordia
The ''Principia Discordia'' is the first published Discordian religious text. It was written by Greg Hill (Malaclypse the Younger) with Kerry Wendell Thornley (Lord Omar Khayyam Ravenhurst) and others. The first edition was printed allegedly using ...
'', a Discordian religious text by Greg Hill (Malaclypse the Younger) and Kerry Wendell Thornley (Lord Omar Khayyam Ravenhurst)
* ''Principia'', astronaut
Tim Peake
Major Timothy Nigel Peake (born 7 April 1972) is a British Army Air Corps officer, European Space Agency astronaut and a former International Space Station (ISS) crew member.
He is the first British ESA astronaut, the second astronaut to bear ...
's mission as part of the Expedition 46 crew of the International Space Station
*
"Principia" (''Agents of S.H.I.E.L.D.''), season 5 episode 13 of Marvel's Agents of S.H.I.E.L.D.''
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