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The theory-theory (or 'theory theory') is a scientific theory relating to the human development of understanding about the outside world. This theory asserts...

In physics, string theory is a theoretical framework in which the point-like particles of particle physics are replaced by one-dimensional objects called...

Game theory is the study of mathematical models of strategic interactions. It has applications in many fields of social science, and is used extensively...

The dead Internet theory is an online conspiracy theory that asserts that the Internet now consists mainly of bot activity and automatically generated...

A conspiracy theory is an explanation for an event or situation that asserts the existence of a conspiracy by powerful and sinister groups, often political...

The Big Bang Theory is an American television sitcom created by Chuck Lorre and Bill Prady, both of whom served as executive producers and head writers...

Complexity theory may refer to: Computational complexity theory, a field in theoretical computer science and mathematics Complex systems theory, the study...

"In Theory" is the 25th episode of the fourth season of the American science fiction television series Star Trek: The Next Generation, originally aired...

The theory of relativity usually encompasses two interrelated physics theories by Albert Einstein: special relativity and general relativity, proposed...

Music theory is the study of the practices and possibilities of music. The Oxford Companion to Music describes three interrelated uses of the term "music...

relativity, also known as the general theory of relativity and Einstein's theory of gravity, is the geometric theory of gravitation published by Albert Einstein...

are currently working to develop a theory of gravity consistent with quantum mechanics, a quantum gravity theory, which would allow gravity to be united...

Set theory is the branch of mathematical logic that studies sets, which can be informally described as collections of objects. Although objects of any...

In popular discourse, the horseshoe theory asserts that advocates of the far-left and the far-right, rather than being at opposite and opposing ends of...

A critical theory is any approach to humanities and social philosophy that focuses on society and culture to attempt to reveal, critique, and challenge...

Theory X and Theory Y are theories of human work motivation and management. They were created by Douglas McGregor while he was working at the MIT Sloan...

In physics, the special theory of relativity, or special relativity for short, is a scientific theory of the relationship between space and time. In Albert...

theory/method wars in which [sociologists] all agreed on at least two working hypotheses: (1) grand theory is a waste of time; [and] (2) good theory has...

Field theory may refer to: Field (mathematics), the theory of the algebraic concept of field Field theory (physics), a physical theory which employs fields...

Look up chaos theory in Wiktionary, the free dictionary. Chaos theory is a mathematical theory describing erratic behavior in certain nonlinear dynamical...

Economic Theory is a peer-reviewed academic journal that focuses on theoretical economics, particularly social choice, general equilibrium theory, and game...

quantum theory in Wiktionary, the free dictionary. Quantum theory may refer to: Quantum mechanics, a major field of physics Old quantum theory, predating...

Heim theory, first proposed by German physicist Burkhard Heim publicly in 1957, is an attempt to develop a theory of everything in theoretical physics...

Function theory may refer to: Theory of functions of a real variable, the traditional name of real analysis, a branch of mathematical analysis dealing...

In category theory, a Lawvere theory (named after American mathematician William Lawvere) is a category that can be considered a categorical counterpart...

his theory in his Opticks of 1704. His reputation helped the particle theory of light to hold sway during the eighteenth century. The particle theory of...

Probability theory or probability calculus is the branch of mathematics concerned with probability. Although there are several different probability interpretations...

An attachment theory is a psychological and evolutionary theory concerning relationships between humans. The most important tenet is that young children...

M-theory is a theory in physics that unifies all consistent versions of superstring theory. Edward Witten first conjectured the existence of such a theory...