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Jerome Kagan (February 25, 1929 – May 10, 2021) was an American psychologist, who was the Daniel and Amy Starch Research Professor of Psychology at Harvard University, as well as, co-faculty at the New England Complex Systems Institute. [1] [2] He was one of the key pioneers of developmental psychology. [3]
Singularity (system theory), in dynamical and social systems, a context in which a small change can cause a large effect Gravitational singularity, in general relativity, a point in which gravity is so intense that spacetime itself becomes ill-defined
After Hull discovered his interest in learning theories from Pavlov, Watson, and Thorndike, he dedicated much of his own laboratory work to perfecting his own theory. Also, many experiments concerning his learning theory came from Hull's students, who carried out many different experiments in Hull's lab after finding inspiration from seminars ...
The Big Bang is a physical theory that describes how the universe expanded from an initial state of high density and temperature. [1] The concept of an expanding universe was scientifically originated by physicist Alexander Friedmann in 1922 with the mathematical derivation of the Friedmann equations.
In general relativity, a naked singularity is a hypothetical gravitational singularity without an event horizon.. When there exists at least one causal geodesic that, in the future, extends to an observer either at infinity or to an observer comoving with the collapsing cloud, and in the past terminates at the gravitational singularity, then that singularity is referred to as a naked ...
His lectures on psychology were published as Lectures on Human and Animal Psychology in 1863–1864. Wundt applied himself to writing a work that came to be one of the most important in the history of psychology, Principles of Physiological Psychology, in 1874. This was the first textbook that was written pertaining to the field of experimental ...
Between singularities, time flows in one direction: away from the singularity (arrow of time). In the open model, there is one time singularity so time is limited at one end but unlimited at the other, while in the closed model there are two singularities that limit time at both ends (the Big Bang and Big Crunch).
John Forbes Nash, Jr. (June 13, 1928 – May 23, 2015), known and published as John Nash, was an American mathematician who made fundamental contributions to game theory, real algebraic geometry, differential geometry, and partial differential equations.