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- In physics, electromagnetic radiation (EMR) consists of waves of the electromagnetic (EM) field, which propagate through space and carry momentum and electromagnetic...80 KB (9,553 words) - 22:39, 6 August 2024
- In particle physics, an elementary particle or fundamental particle is a subatomic particle that is not composed of other particles. The Standard Model...35 KB (3,434 words) - 04:52, 26 July 2024
- The chronology of the universe describes the history and future of the universe according to Big Bang cosmology. Research published in 2015 estimates the...138 KB (13,925 words) - 20:02, 16 August 2024
- The photoelectric effect is the emission of electrons from a material caused by electromagnetic radiation such as ultraviolet light. Electrons emitted...54 KB (6,557 words) - 07:55, 4 August 2024
- In physics, chemistry, and other related fields like biology, a phase transition (or phase change) is the physical process of transition between one state...53 KB (6,557 words) - 04:43, 4 August 2024
- Georges Henri Joseph Édouard Lemaître (/ləˈmɛtrə/ lə-MET-rə; French: [ʒɔʁʒ ləmɛːtʁ] ; 17 July 1894 – 20 June 1966) was a Belgian Catholic priest, theoretical...46 KB (4,809 words) - 11:36, 25 July 2024
- Inertial confinement fusion (ICF) is a fusion energy process that initiates nuclear fusion reactions by compressing and heating targets filled with fuel...67 KB (7,904 words) - 22:47, 28 July 2024
- The erg is a unit of energy equal to 10−7 joules (100 nJ). It originated in the Centimetre–gram–second system of units (CGS). It has the symbol erg. The...10 KB (884 words) - 19:28, 1 April 2024
- A crystallite is a small or even microscopic crystal which forms, for example, during the cooling of many materials. Crystallites are also referred to...14 KB (1,638 words) - 05:30, 15 July 2024
- Gravitoelectromagnetism, abbreviated GEM, refers to a set of formal analogies between the equations for electromagnetism and relativistic gravitation;...29 KB (3,502 words) - 09:00, 15 August 2024
- In astrophysics, the ergosphere is a region located outside a rotating black hole's outer event horizon. Its name was proposed by Remo Ruffini and John...9 KB (1,055 words) - 22:55, 2 May 2024
- In theoretical physics, the (one-dimensional) nonlinear Schrödinger equation (NLSE) is a nonlinear variation of the Schrödinger equation. It is a classical...25 KB (3,387 words) - 23:15, 10 November 2023
- Photoionization is the physical process in which an ion is formed from the interaction of a photon with an atom or molecule. Not every interaction between...7 KB (826 words) - 23:17, 23 January 2024
- In physics, Maxwell's equations in curved spacetime govern the dynamics of the electromagnetic field in curved spacetime (where the metric may not be the...31 KB (5,900 words) - 01:18, 22 July 2024
- A helium atom is an atom of the chemical element helium. Helium is composed of two electrons bound by the electromagnetic force to a nucleus containing...35 KB (6,005 words) - 00:34, 16 July 2024
- In physics, a variational principle is an alternative method for determining the state or dynamics of a physical system, by identifying it as an extremum...35 KB (4,019 words) - 20:32, 5 July 2024
- In physics and astronomy, Euler's three-body problem is to solve for the motion of a particle that is acted upon by the gravitational field of two other...21 KB (3,125 words) - 12:58, 10 August 2024
- An inexact differential or imperfect differential is a differential whose integral is path dependent. It is most often used in thermodynamics to express...11 KB (1,777 words) - 18:22, 12 July 2024
- Gustav Adolf Feodor Wilhelm Ludwig Mie (German: [miː]; 29 September 1868 – 13 February 1957) was a German physicist. His work included Mie scattering,...8 KB (772 words) - 10:47, 19 March 2024
- A quantum-well laser is a laser diode in which the active region of the device is so narrow that quantum confinement occurs. Laser diodes are formed in...13 KB (1,730 words) - 23:55, 1 May 2024