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Edgepedia

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Atom Heart Mother

Atom Heart Mother: Pink Floyd's fifth studio album, released 2 October 1970 on Harvest; first UK No. 1, featuring the 23-minute Ron Geesin co-written title suite and the cow cover Lulubelle III.

Atom interferometer

An atom interferometer is an interferometer whose interfering waves are the matter waves of atoms; laser pulses split and recombine them to measure gravity, acceleration, and rotation with high precision.

Atom interferometry

Atom interferometry is a precision measurement technique that splits an atomic matter wave into two paths and recombines them, measuring gravity, rotation, and gravity gradients with high sensitivity.

Atom laser

An atom laser is a device that produces an intense, coherent beam of atoms extracted from a Bose–Einstein condensate, the matter-wave analog of an optical laser, first demonstrated in 1997 at MIT by Wolfgang Ketterle's group.

Atom probe tomography

Atom probe tomography (APT) is an analytical microscopy technique that maps the 3D positions and elemental identities of individual atoms in a needle-shaped specimen, with sub-nanometer resolution and parts-per-million sensitivity.

Atom search optimization

Atom search optimization (ASO) is a physics-inspired metaheuristic introduced in 2018 that finds global optima by simulating atoms moving under Lennard-Jones interaction and constraint forces in a solution space.

Atom trapping on ceria

Atom trapping on ceria is a high-temperature synthesis, reported in 2016 by Abhaya Datye's team, that captures volatile platinum oxide as thermally stable Pt2+ single atoms on ceria.

Atom-by-atom assembly of defect-free one-dimensional cold atom arrays

An experimental technique, first reported in Science in November 2016 at Harvard, MIT, and Caltech, that rearranges cold atoms in optical tweezers to form defect-free one-dimensional arrays of more than 50 atoms.

Atom-transfer radical polymerization

Atom-transfer radical polymerization (ATRP) is a reversible deactivation radical polymerization, introduced in 1995, that uses a transition-metal catalyst, usually copper, and reversible halogen atom transfer to make well-defined polymers of controlled architecture.

atomate

atomate is an open-source Python framework introduced in 2017 by Kiran Mathew, Anubhav Jain, and colleagues at the Materials Project, automating high-throughput DFT materials simulation workflows; its successor is atomate2.

Atomberg

Atomberg Technologies Limited is a Mumbai-based Indian consumer-appliance company founded in 2012 by IIT Bombay alumni, best known for energy-efficient BLDC ceiling fans and now IPO-bound.

Atomberg Technologies

Atomberg Technologies is a Mumbai-based Indian consumer appliances company founded in 2012 by Manoj Kumar Meena, known for energy-efficient BLDC ceiling fans that use about 28 watts instead of 75.

Atomera

Atomera Incorporated is a Los Gatos, California semiconductor materials and intellectual property licensing company, founded in 2001, traded on Nasdaq as ATOM, that licenses Mears Silicon Technology (MST).

Atomfall

Atomfall is a 2025 single-player survival-action game by Rebellion Developments, set in a 1962 quarantine zone after the Windscale fire, released day one on Game Pass for PC, PlayStation and Xbox, with leads-based investigations and a barter economy.

Atomic absorption spectroscopy

Atomic absorption spectroscopy, also known as atomic absorption spectrophotometry, is an analytical technique that determines element concentrations by measuring absorbed light, widely used for trace-metal analysis.

Atomic Age

The Atomic Age, also called the Nuclear Age, is the historical period that began with the first controlled nuclear chain reaction in 1942 and the atomic bombings of Japan in 1945.

Atomic battery

An atomic battery, also called a nuclear or radioisotope battery, generates electricity from radioactive decay instead of chemical reactions. Thermoelectric RTGs power deep-space craft for decades, while betavoltaics deliver microwatts for years.

Atomic Blonde

Atomic Blonde is a 2017 action spy thriller directed by David Leitch, starring Charlize Theron as MI6 agent Lorraine Broughton in 1989 Berlin, adapted from the graphic novel The Coldest City and known for its faux one-take stairwell fight.

Atomic bombings of Hiroshima and Nagasaki

The atomic bombings of Hiroshima and Nagasaki: US atomic attacks of August 6 and 9, 1945 using Little Boy and Fat Man that killed over 200,000 and ended World War II.

Atomic clock

An atomic clock is a timekeeping device that locks an oscillator to the quantum transition frequency of atoms; cesium-133 defines the SI second, adopted in 1967, and optical clocks are now far more accurate.

Atomic Clock Ensemble in Space

The Atomic Clock Ensemble in Space (ACES) is a European Space Agency facility of two atomic clocks on the International Space Station, launched in 2025 to test relativity.

Atomic Cluster Expansion

The atomic cluster expansion (ACE) is a complete polynomial basis for describing an atom's local environment, introduced by Ralf Drautz in 2019 and widely used in machine-learning interatomic potentials.

Atomic decomposition

Atomic decomposition is a signal processing method that represents a signal as a sparse linear combination of elementary waveforms, called atoms, drawn from a redundant dictionary.

Atomic domain

An atomic domain is an integral domain in which every nonzero nonunit can be written as a finite product of irreducible elements, though the factorization need not be unique.

Atomic electron tomography

Atomic electron tomography is an imaging technique that determines the 3D coordinates and elemental identities of individual atoms in a single nanoscale object from tilted electron micrographs.

Atomic emission spectrometry

Atomic emission spectrometry (AES) is an analytical technique that identifies and measures up to 70 element concentrations simultaneously by detecting light emitted by excited atoms and ions.

Atomic emission spectroscopy

Atomic emission spectroscopy (AES), also called optical emission spectrometry, identifies elements in a sample from light emitted by excited atoms and ions, with intensity giving concentration.

Atomic Energy Act of 1954

The Atomic Energy Act of 1954 is the fundamental United States law governing civilian and military uses of nuclear materials, replacing the 1946 Act and enabling commercial nuclear power.

Atomic Energy Control Board

The Atomic Energy Control Board was Canada's federal nuclear regulator from 1946 to 2000, overseeing nuclear energy and materials before becoming the Canadian Nuclear Safety Commission.

Atomic Energy of Canada Limited

Atomic Energy of Canada Limited (AECL) is a federal Crown corporation created in 1952 that develops nuclear technology, manages radioactive waste, and owns the CANDU reactor design.