Index of Physics Articles - A

A

• A. Baha Balantekin
• A. Carl Helmholz
• A. Catrina Bryce
• A. E. Becquerel
• A. G. Doroshkevich
• A. I. Shlyakhter
• A. K. Jonscher
• A. P. Balachandran
• A.a.s. 215 meeting
• A15 phases
• AAS 215th meeting
• ABINIT
• ACE (CERN)
• ACS Nano
• AD1 experiment
• AD2 experiment
• AD3 experiment
• AD4 experiment
• AD5 experiment
• AD6 experiment
• ADA collider
• ADHM construction
• ADITYA (tokamak)
• ADM energy
• ADM formalism
• ADONE
• AEGIS (particle physics)
• AIDA (computing)
• AILU
• AIP Conference Proceedings
• AKLT Model
• ALBA (synchrotron)
• ALEGRA
• ALEPH experiment
• ALICE (accelerator)
• ALPHA Collaboration
• AMBER
• AMOLF
• ANNNI model
• ANTARES (accelerator)
• ANTARES (telescope)
• APEXC
• ARC-ECRIS
• ARGUS (experiment)
• ARGUS distribution
• ARROW waveguide
• ASACUSA
• ASA Gold Medal
• ASA Silver Medal
• ASDEX Upgrade
• ASTM Subcommittee E20.02 on Radiation Thermometry
• ASTRA (reactor)
• ASTRID
• ASTRID 2
• ATHENA
• ATLAS Collaboration
• ATLAS experiment
• ATOMKI
• ATRAP
• AUSM
• A Brief History of Time
• A Briefer History of Time (Hawking and Mlodinow book)
• A Different Universe
• A Dynamical Theory of the Electromagnetic Field
• A Large Ion Collider Experiment
• A New Theory of Magnetic Storms
• A Treatise on Electricity and Magnetism
• A Universe from Nothing
• A a. s. 215 meeting
• A dynamical theory of the electromagnetic field
• Aage Bohr
• Aaldert Wapstra
• Aaron Klug
• Aaron Lemonick
• Abbe prism
• Abbe sine condition
• Abdel-Moniem El-Ganayni
• Abdul Qadeer Khan
• Abdul Rasul (Iraqi scientist)
• Abdullah Sadiq
• Abdus Salam
• Abeles matrix formalism
• Abell 520
• Aberdeen Tunnel Underground Laboratory
• Aberration of light
• Abhas Mitra
• Abhay Ashtekar
• Ablation
• Abner Shimony
• Abol-fath Khazeni
• About Time (book)
• Above threshold ionization
• Abraham (Avi) Loeb
• Abraham Alikhanov
• Abraham Bennet
• Abraham Esau
• Abraham Haskel Taub
• Abraham Katzir
• Abraham Pais
• Abraham Zelmanov
• Abraham–Lorentz force
• Abraham–Lorentz–Dirac force
• Abraham–Minkowski controversy
• Abram Ioffe
• Abrikosov vortex
• Absolute angular momentum
• Absolute dating
• Absolute horizon
• Absolute hot
• Absolute magnitude
• Absolute rotation
• Absolute theory
• Absolute threshold of hearing
• Absolute time and space
• Absolute zero
• Absorbed dose
• Absorber
• Absorption (acoustics)
• Absorption (electromagnetic radiation)
• Absorption band
• Absorption cross section
• Absorption curve
• Absorption edge
• Absorption refrigerator
• Absorption spectroscopy
• Absorption spectrum
• Abu'l-Barakāt al-Baghdādī
• Abundance of the chemical elements
• Academic genealogy of theoretical physicists
• Academic programs in acoustics
• Accelerated reference frame
• Accelerating expansion of the cosmos
• Accelerating universe
• Acceleration
• Acceleration voltage
• Accelerator Test Facility
• Accelerator mass spectrometry
• Accelerator physics
• Accelerometer
• Acceleron
• Acceptor (semiconductors)
• Acceptor impurity
• Accidental symmetry
• Accordion effect
• Accretion (astrophysics)
• Accretion disc
• Acentric factor
• Achim Richter
• Acicular ferrite
• Acoplanarity
• Acoustic Doppler Current Profiler
• Acoustic Doppler velocimetry
• Acoustic analogy
• Acoustic approximation
• Acoustic attenuation
• Acoustic cleaning
• Acoustic cloak
• Acoustic contrast factor
• Acoustic dispersion
• Acoustic droplet ejection
• Acoustic emission
• Acoustic holography
• Acoustic impedance
• Acoustic interferometer
• Acoustic levitation
• Acoustic location
• Acoustic lubrication
• Acoustic metamaterials
• Acoustic metric
• Acoustic microscopy
• Acoustic mirror
• Acoustic network
• Acoustic ohm
• Acoustic paramagnetic resonance
• Acoustic quieting
• Acoustic radiation force
• Acoustic radiation force impulse imaging
• Acoustic radiation pressure
• Acoustic resonance
• Acoustic rheometer
• Acoustic signature
• Acoustic source localization
• Acoustic streaming
• Acoustic suspension
• Acoustic theory
• Acoustic wave equation
• Acoustical Society of America
• Acoustical engineering
• Acoustical measurements and instrumentation
• Acoustical oceanography
• Acoustics
• Acousto-optic deflector
• Acousto-optics
• Acta Biochimica et Biophysica Sinica
• Acta Biomaterialia
• Acta Crystallographica
• Acta Crystallographica A
• Acta Crystallographica B
• Acta Crystallographica C
• Acta Crystallographica D
• Acta Crystallographica E
• Acta Crystallographica F
• Acta Materialia
• Acta Physica Polonica
• Acta Physica Polonica A
• Acta Physica Polonica B
• Actinic light
• Actinides in the environment
• Actinism
• Actinometer
• Action-angle coordinates
• Action (physics)
• Action at a distance (physics)
• Activation analysis
• Activation product
• Active acoustics
• Active and passive transformation
• Active cavity radiometer
• Active galactic nucleus
• Active laser medium
• AdS/CFT correspondence
• AdS/QCD
• AdS black hole
• Ad Lagendijk
• Adam Dziewonski
• Adam Falk
• Adam Riess
• Adaptive compliant wing
• Adaptive feedback cancellation
• Adaptive optics
• Added mass
• Additive white Gaussian noise
• Adelbert Ames, Jr.
• Adhémar Jean Claude Barré de Saint-Venant
• Adi Bulsara
• Adiabatic conductivity
• Adiabatic flame temperature
• Adiabatic invariant
• Adiabatic principle
• Adiabatic process
• Adiabatic process (quantum mechanics)
• Adiabatic shear band
• Adiabatic theorem
• Adinkra symbols (physics)
• Adjustable Ranging Telescope
• Adlène Hicheur
• Admittance
• Adolf Bestelmeyer
• Adolf Busemann
• Adolf Eugen Fick
• Adolf Kratzer
• Adolfo Bartoli
• Adriaan Fokker
• Adrian Bejan
• Adrian Berry, 4th Viscount Camrose
• Adriano de Paiva
• Adrien-Marie Legendre
• Advanced Composite Materials (journal)
• Advanced Light Source
• Advanced Photon Source
• Advanced Spaceborne Thermal Emission and Reflection Radiometer
• Advanced Thin Ionization Calorimeter
• Advanced boiling water reactor
• Advanced composite materials (science & engineering)
• Advances in Applied Clifford Algebras
• Advances in Physics
• Advances in Space Research
• Advances in Theoretical and Mathematical Physics
• Advection
• Adverse pressure gradient
• Adverse yaw
• Ady Stern
• Aeolipile
• Aeroacoustics
• Aerobraking
• Aerocapture
• Aerodynamic center
• Aerodynamic diameter
• Aerodynamic drag
• Aerodynamic force
• Aerodynamic heating
• Aerodynamic levitation
• Aerodynamic potential flow code
• Aerodynamics
• Aeroelasticity
• Aerogel
• Aerographite
• Aerogravity assist
• Aerology
• Aeromechanics
• Aeronautics
• Aeroprediction
• Aerosol
• Aerosol impaction
• Aerostatics
• Aether (classical element)
• Aether drag hypothesis
• Aether theories
• Affleck–Dine mechanism
• Afshar experiment
• Afterglow plasma
• Age crisis
• Age of the Earth
• Age of the universe
• Aggregated diamond nanorod
• Agitator (device)
• Agnes Pockels
• Agrophysics
• Aharon Katzir
• Aharonov–Bohm effect
• Ahmet Yıldız
• Aichelburg–Sexl ultraboost
• Aileron
• Aimé Argand
• Aimé Cotton
• Air-mixing plenum
• Air (classical element)
• Air conditioning
• Air flow bench
• Air knife
• Air separation
• Air shower (physics)
• Air track
• Airborne wind turbine
• Aircraft dynamic modes
• Aircraft flight mechanics
• Aircraft noise
• Airfoil
• Airlift pump
• Airy beam
• Airy disk
• Airy wave theory
• Ajoy Ghatak
• Akeno Giant Air Shower Array
• Akitsune Imamura
• Akoustolith
• Al-Khazini
• Alain Aspect
• Alain Haché
• Alan Astbury
• Alan Boss
• Alan Brewer
• Alan Cook
• Alan Cottrell
• Alan Guth
• Alan J. Heeger
• Alan Kostelecký
• Alan Lightman
• Alan Lloyd Hodgkin
• Alan M. Portis
• Alan Nunn May
• Alan Sokal
• Alan Tower Waterman
• Alan Walsh (physicist)
• Alastair G. W. Cameron
• Albedo
• Albert-László Barabási
• Albert Abraham Michelson
• Albert Baez
• Albert Bartlett
• Albert Beaumont Wood
• Albert Betz
• Albert Bouwers
• Albert C. Geyser
• Albert Einstein
• Albert Einstein: Creator and Rebel
• Albert Einstein: The Practical Bohemian
• Albert Einstein Award
• Albert Einstein Medal
• Albert Einstein Science Park
• Albert Einstein World Award of Science
• Albert Einstein in popular culture
• Albert Fert
• Albert G. Hill
• Albert Messiah
• Albert Overhauser
• Albert Percival Rowe
• Albert Polman
• Albert Potter Wills
• Albert Rose (physicist)
• Albert Sauveur
• Albert Tarantola
• Albert Victor Bäcklund
• Albert von Ettingshausen
• Albrecht Fölsing
• Albrecht Unsöld
• Alcator C-Mod
• Alcubierre drive
• Aldert van der Ziel
• Alec Merrison
• Alejandro Corichi
• Aleksandar Despić
• Aleksandar Just
• Aleksander Akhiezer
• Aleksander Jabłoński
• Aleksander Zawadzki (naturalist)
• Aleksandr Andronov
• Aleksandr Chudakov
• Aleksandr Danilovich Aleksandrov
• Aleksandr Gurevich
• Aleksandr Leipunskii
• Aleksandr Stoletov
• Aleksei Pogorelov
• Aleksei Zinovyevich Petrov
• Alenush Terian
• Aleph (CERN)
• Alessandra Buonanno
• Alessandro Vaciago
• Alessandro Vespignani
• Alessandro Volta
• Alessio Guarino
• Alex Grossmann
• Alex Smith (engineer)
• Alex Stokes
• Alex Zettl
• Alex Zunger
• Alexander's band
• Alexander Akimov
• Alexander Alexeyevich Makarov
• Alexander Anderson (physicist)
• Alexander Animalu
• Alexander Balankin
• Alexander Behm
• Alexander Belavin
• Alexander Boksenberg
• Alexander Dalgarno
• Alexander Dallas Bache
• Alexander Davydov
• Alexander Eugen Conrady
• Alexander Fetter
• Alexander Friedmann
• Alexander Graham Bell
• Alexander Hollaender
• Alexander Hollaender Award in Biophysics
• Alexander I. Poltorak
• Alexander Ivanovich Popov
• Alexander Kuzemsky
• Alexander MacAulay
• Alexander Macfarlane
• Alexander Markovich Polyakov
• Alexander Meissner
• Alexander Mikhajlovich Baldin
• Alexander Nikuradse
• Alexander Patashinski
• Alexander Prokhorov
• Alexander R. Hamilton
• Alexander Rich
• Alexander S. Potupa
• Alexander Shikov
• Alexander Stepanovich Popov
• Alexander Vilenkin
• Alexander William Bickerton
• Alexander Zamolodchikov
• Alexander van Oudenaarden
• Alexandre Chorin
• Alexandru Marin
• Alexandru Proca
• Alexei Alexeyevich Abrikosov
• Alexei Yuryevich Smirnov
• Alexei Zamolodchikov
• Alexey Andreevich Anselm
• Alexey Kavokin
• Alexis-Marie de Rochon
• Alexis Clairaut
• Alexis Thérèse Petit
• Alf Adams
• Alfons Bühl
• Alfred-Marie Liénard
• Alfred Barnard Basset
• Alfred Bucherer
• Alfred Hubler
• Alfred Kastler
• Alfred Kleiner
• Alfred Landé
• Alfred Lauck Parson
• Alfred M. Mayer
• Alfred O. C. Nier
• Alfred Perot
• Alfred Robb
• Alfred Saupe
• Alfred Schild
• Alfred Wegener
• Alfred Wilm
• Alfvén-Klein model
• Alfvén wave
• Algebra of physical space
• Algebraic holography
• Algodoo
• AliEn (ALICE Environment)
• Ali Javan
• Ali Moustafa Mosharafa
• Alice Leigh-Smith
• Alkali-metal thermal to electric converter
• All-Union Institute for Scientific and Technical Information
• All-silica fiber
• All gas-phase iodine laser
• Allais effect
• Allan Blaer
• Allan Boardman
• Allan Carswell
• Allan Mackintosh
• Allan McLeod Cormack
• Allan V. Cox
• Allen Shenstone
• Allyn Vine
• Allyne L. Merrill
• Aloyzas Sakalas
• Alpha-particle spectroscopy
• Alpha & Omega (book)
• Alpha Magnetic Spectrometer
• Alpha decay
• Alpha factor
• Alpha particle
• Alpha process
• Alpher–Bethe–Gamow paper
• Alternating Gradient Synchrotron
• Alternatives to general relativity
• Alternatives to the Standard Model Higgs
• Aluminium gallium phosphide
• Alv Egeland
• Alvarez Physics Memo
• Alvarez Physics Memos
• Alvin Andreas Herborg Nielsen
• Alvin C. Graves
• Alvin M. Weinberg
• Alvin Radkowsky
• Alwyn Van der Merwe
• Amagat
• Amagat's law
• Amal Kumar Raychaudhuri
• Amasa Stone Bishop
• Ambient noise level
• Ambient pressure
• Ambipolar diffusion
• Amer Iqbal
• American Association of Physicists in Medicine
• American Association of Physics Teachers
• American Astron. Soc. 215th Meeting
• American Astron. Soc. Meeting
• American Astron Soc 215th Meeting
• American Astronomical Society
• American Astronomical Society 215th meeting
• American Geophysical Union
• American Institute of Physics
• American Journal of Physics
• American Physical Society
• American Prometheus
• American Vacuum Society
• American astron soc 215th meeting
• Ames Laboratory
• Ames trapezoid
• Amikam Aharoni
• Amir Caldeira
• Ammonium diuranate
• Ammonium uranyl carbonate
• Amorphous ice
• Amorphous metal
• Amorphous solid
• Amory Lovins
• Amos Ori
• Amos de-Shalit
• Amott test
• Amount of substance
• Ampere
• Ampere-turn
• Ampere model of magnetization
• Amphidromic point
• Amplified spontaneous emission
• Amplitude
• Amplitude damping channel
• Ampère's circuital law
• Ampère's force law
• Amrom Harry Katz
• Amsterdam Density Functional
• An Album of Fluid Motion
• An Elementary Treatise on Electricity
• An Essay on the Application of Mathematical Analysis to the Theories of Electricity and Magnetism
• An Exceptionally Simple Theory of Everything
• An Experimental Enquiry Concerning the Source of the Heat which is Excited by Friction
• Ana María Cetto
• Anales de Física
• Analog Integrated Circuits and Signal Processing
• Analog models of gravity
• Analysis of flows
• Analytical dynamics
• Analytical mechanics
• Anastigmat
• Anatol Roshko
• Anatole Abragam
• Anatole Boris Volkov
• Anatoli Blagonravov
• Anatoly Dyatlov
• Anatoly Larkin
• Anatoly Petrovich Alexandrov
• Anatoly Vlasov
• Anatoly Zhabotinsky
• Anaxagoras
• Anaximander
• Anders Boserup
• Anders Flodström
• Anders Johan Lexell
• Anders Jonas Ångström
• Anders Karlsson (physicist)
• Anders Knutsson Ångström
• Anderson's rule
• Anderson impurity model
• Anderson localization
• Anderson orthogonality theorem
• Andre Geim
• Andrea Alù
• Andrea M. Ghez
• Andrea Naccari
• Andrea Prosperetti
• Andreas Acrivos
• Andreas Albrecht
• Andreas Gerasimos Michalitsianos
• Andreas Jaszlinszky
• Andreas Mershin
• Andreas Winter
• Andreas von Ettingshausen
• Andreev reflection
• Andrei Linde
• Andrei Sakharov
• Andrej Čadež
• Andrew E. Lange
• Andrew Gordon (Benedictine)
• Andrew Gray (physicist)
• Andrew Huxley
• Andrew J. Feustel
• Andrew Keller
• Andrew Lang (physicist)
• Andrew Lowe
• Andrew Lyne
• Andrew R. Liddle
• Andrew Steane
• Andrew Strominger
• Andrew Turberfield
• Andrey Kolmogorov
• Andreyev Acoustics Institute
• Andrija Mohorovičić
• Andrius Baltuška
• Andromeda–Milky Way collision
• Andrzej Kajetan Wróblewski
• Andrzej Sołtan
• Andrzej Trautman
• André-Marie Ampère
• André Blondel
• André Guinier
• André Lichnerowicz
• André Maréchal
• André Neveu
• André Pochan
• Anechoic chamber
• Aneesur Rahman
• Anello Di Accumulazione
• Anemometer
• Aneutronic fusion
• Ángel Rodríguez Lozano
• Angelo Battelli
• Angioletta Coradini
• Angle-resolved photoemission spectroscopy
• Angle of attack
• Angle of climb
• Angle of incidence
• Angle of refraction
• Angle of repose
• Angstrom
• Angstrom exponent
• Angular Momentum Commutator
• Angular acceleration
• Angular diameter distance
• Angular displacement
• Angular frequency
• Angular momentum
• Angular momentum commutator
• Angular momentum coupling
• Angular momentum of light
• Angular momentum operator
• Angular size redshift relation
• Angular spectrum method
• Angular velocity
• Anharmonicity
• Anil Bhardwaj
• Animal echolocation
• Anirudh Singh
• Anisothermal plasma
• Anisotropic liquid
• Anita Goel
• Ann Nelson
• Anna Maria Nobili
• Annalen der Physik
• Annales Henri Poincaré
• Annales de chimie et de physique
• Annals of Physics
• Annealed disorder
• Annihilation
• Annular dark-field imaging
• Annular fin
• Annular velocity
• Annus Mirabilis papers
• Annus mirabilis
• Anode ray
• Anomalon
• Anomalous Diffraction Theory
• Anomalous X-ray pulsar
• Anomalous cosmic ray
• Anomalous diffusion
• Anomalous electric dipole moment
• Anomalous magnetic dipole moment
• Anomalous photovoltaic effect
• Anomalous scaling dimension
• Anomaly (physics)
• Anomaly matching condition
• Anosov diffeomorphism
• Ansar Pervaiz
• Ansatz
• Anselmus de Boodt
• Antarctic Impulse Transient Antenna
• Antarctic Muon And Neutrino Detector Array
• Antenn. Wireless Propag. Lett.
• Antenn. Wireless Propag. Lett. IEEE
• Antenn Wireless Propag Lett, IEEE
• Antenna array (electromagnetic)
• Antenna noise temperature
• Antennas and Wireless Propagation Lett.
• Antennas and Wireless Propagation Letters
• Antennas and Wireless Propagation Letters, IEEE
• Anthelion
• Anthony E. Siegman
• Anthony French
• Anthony Ichiro Sanda
• Anthony J. DeMaria
• Anthony James Leggett
• Anthony Kelly (physicist)
• Anthony M. Johnson
• Anthony Zee
• Anthropic principle
• Anti-gravity
• Anti-laser
• Anti-phase domain
• Anti-reflective coating
• Anti-scatter grid
• Anti-scratch coating
• Anti-shock body
• Anti-vibration compound
• Anti de Sitter space
• Antibubble
• Anticrepuscular rays
• Antidynamo theorem
• Antiferroelectricity
• Antiferromagnetic interaction
• Antiferromagnetism
• Antigluon
• Antihydrogen
• Antimatter
• Antimatter catalyzed nuclear pulse propulsion
• Antimatter comet
• Antimatter rocket
• Antimatter tests of Lorentz violation
• Antimatter weapon
• Antimo Palano
• Antineutrino
• Antineutron
• Antinucleon
• Antiparticle
• Antiphase
• Antiphoton
• Antiproton
• Antiproton Decelerator
• Antiprotonic helium
• Antiquarian science books
• Antistatic agent
• Antistatic wrist strap
• Antoine César Becquerel
• Antoine de Chézy
• Anton Ambschel
• Anton Kapustin
• Anton Maria Schyrleus of Rheita
• Anton Oberbeck
• Anton Peterlin (physicist)
• Anton Zeilinger
• Antonia Terzi
• Antonie van Leeuwenhoek
• Antonino Zichichi
• Antonio Ferri
• Antonio Pacinotti
• Antonio Signorini
• Antonio Zichichi
• Antonius van den Broek
• Antony Garrett Lisi
• Antony Hewish
• Antony Jameson
• Antony Valentini
• Antun Karlo Bakotić
• Anwar Ali (scientist)
• Anyon
• Ányos Jedlik
• Apache Point Observatory Galactic Evolution Experiment
• Apache Point Observatory Lunar Laser-ranging Operation
• Apeiron (physics journal)
• Aperture
• Apollo M. O. Smith
• Apoorva D. Patel
• Apparent horizon
• Apparent magnitude
• Apparent viscosity
• Apparent weight
• Appell's equation of motion
• Application of tensor theory in physics
• Applications of the Stirling engine
• Applied Optics
• Applied Physics
• Applied Physics (journal)
• Applied Physics A
• Applied Physics B
• Applied Physics Express
• Applied Physics Letters
• Applied Spectroscopy (journal)
• Applied Spectroscopy Reviews
• Applied mechanics
• Applied physics
• Applied spectroscopy
• Apse line
• Apsidal precession
• Apsis
• ArDM
• ArXiv
• Arago spot
• Arbitrary unit
• Arc suppression
• Archeops
• Archer's paradox
• Archibald Hill
• Archibald Howie
• Archibald Low
• Archie G. Worthing
• Archimedean point
• Archimedes
• Archimedes' principle
• Archimedes number
• Architectural acoustics
• Archive for Rational Mechanics and Analysis
• Archytas
• Arcminute Cosmology Bolometer Array Receiver
• Arctowski Medal
• Ardeshir Hosseinpour
• Area density
• Area rule
• Areal velocity
• Arend Joan Rutgers
• Areostationary orbit
• Areostationary satellite
• Areosynchronous orbit
• Areosynchronous satellite
• Argo (oceanography)
• Argonne Tandem Linear Accelerator System
• Argument of periapsis
• Argus laser
• Arie Andries Kruithof
• Arie Bodek
• Aristotelian physics
• Aristotelian theory of gravity
• Aristotle
• Arizona Accelerator Mass Spectrometry Laboratory
• Arkady Migdal
• Arlie Petters
• Armand de Waele
• Armature reaction drop
• Arne Bjerhammar
• Arno Allan Penzias
• Arnold Eucken
• Arnold Flammersfeld
• Arnold Kosevich
• Arnold Kramish
• Arnold Sommerfeld
• Arnold diffusion
• Arrayed waveguide grating
• Arrow of time
• Arseny Sokolov
• Arthur Ashkin
• Arthur B. C. Walker, Jr.
• Arthur B. McDonald
• Arthur C. Hardy
• Arthur Compton
• Arthur Covington
• Arthur Eddington
• Arthur Edward Ruark
• Arthur Erich Haas
• Arthur F. Turner
• Arthur Geoffrey Walker
• Arthur Gordon Webster
• Arthur H. Rosenfeld
• Arthur Iberall
• Arthur Jaffe
• Arthur Jeffrey Dempster
• Arthur Korn
• Arthur König
• Arthur L. Schawlow Prize in Laser Science
• Arthur Leonard Schawlow
• Arthur Louis Day
• Arthur Maitland
• Arthur Morin
• Arthur Nowick
• Arthur R. von Hippel
• Arthur Roberts (physicist)
• Arthur S. Lodge
• Arthur Schuster
• Arthur Scott King
• Arthur Stanley Mackenzie
• Arthur Stewart Eve
• Arthur W. Barton
• Arthur Wehnelt
• Arthur Wightman
• Arthur William Rucker
• Arthur Williams Wright
• Arthur Zajonc
• Arthur von Oettingen
• Artificial dielectric
• Artificial dielectrics
• Artificial disintegration
• Artificial gravity
• Artificial magnetic conductor
• Artificial photosynthesis
• Artificial wave
• Artur Ekert
• Artyom Alikhanian
• Arun K. Pati
• Arvind Rajaraman
• Aryeh Kaplan
• Asad Naqvi
• Asbestiform
• Ascher H. Shapiro
• Asher A. Friesem
• Asher Peres
• Ashesh Prosad Mitra
• Ashok Das
• Ashoke Sen
• Ashtekar variables
• Asian African Association for Plasma Training
• Askaryan Radio Array
• Askaryan effect
• Aspect ratio (wing)
• Aspera European Astroparticle network
• Asperity (materials science)
• Aspheric lens
• Aspirator (pump)
• Associated Legendre polynomials
• Association of Los Alamos Scientists
• Astatic galvanometer
• Asterix IV laser
• Asteroseismology
• Astigmatism
• Astro Space Center (Russia)
• Astrochemistry
• Astron (fusion reactor)
• Astronautics
• Astronomia nova
• Astronomical seeing
• Astronomical spectroscopy
• Astronomical system of units
• Astronomy
• Astronomy, astrophysics
• Astronomy & Geophysics
• Astronomy Letters
• Astronomy Reports
• Astronomy and Astrophysics
• Astronomy and Astrophysics Decadal Survey
• Astronomy and Geophysics
• Astronomy and astrophysics
• Astroparticle Physics (journal)
• Astroparticle physics
• Astrophysical X-ray source
• Astrophysical plasma
• Astrophysics
• Astrophysics Data System
• Astrophysics Data Systems
• Astrophysics and Space Science
• Asymmetry of lift
• Asymptotic freedom
• Asymptotic homogenization
• Asymptotically flat spacetime
• Asım Orhan Barut
• Atacama Large Millimeter Array
• Ataç İmamoğlu
• Athene Donald
• Atkinson friction factor
• Atkinson resistance
• Atmosphere
• Atmosphere of Earth
• Atmosphere of Titan
• Atmosphere of Uranus
• Atmospheric-pressure chemical ionization
• Atmospheric-pressure plasma
• Atmospheric Radiation Measurement
• Atmospheric diffraction
• Atmospheric duct
• Atmospheric ducting
• Atmospheric dynamo
• Atmospheric entry
• Atmospheric methane
• Atmospheric physics
• Atmospheric pressure
• Atmospheric pressure discharge
• Atmospheric radiative transfer codes
• Atmospheric refraction
• Atmospheric sciences
• Atmospheric sounding
• Atmospheric stratification
• Atmospheric thermodynamics
• Atmospheric wave
• Atom
• Atom: Journey Across the Subatomic Cosmos
• Atom laser
• Atom optics
• Atom probe
• Atom vibrations
• Atomic, molecular, and optical physics
• Atomic Emission Spectrum
• Atomic Energy of Canada Limited
• Atomic and molecular astrophysics
• Atomic battery
• Atomic beam
• Atomic clock
• Atomic coherence
• Atomic diffusion
• Atomic electron configuration table
• Atomic electron transition
• Atomic emission spectrum
• Atomic force microscopy
• Atomic form factor
• Atomic fountain
• Atomic gas
• Atomic line filter
• Atomic mass unit
• Atomic mirror
• Atomic nucleus
• Atomic number
• Atomic orbital
• Atomic orbital model
• Atomic packing factor
• Atomic percent
• Atomic physics
• Atomic ratio
• Atomic scale
• Atomic scales
• Atomic spacing
• Atomic spectral line
• Atomic theory
• Atomic units
• Atomichron
• Atomics International
• Atomism
• Atomistix Virtual NanoLab
• Attenuation
• Attenuation (electromagnetic radiation)
• Attenuation coefficient
• Attenuation length
• Attophysics
• Attosecond physics
• Atwood machine
• Atwood number
• Audio frequency
• Audio power
• Aufbau principle
• Auger effect
• Auger electron spectroscopy
• August Beer
• August H. Pfund
• August Herman Pfund
• August Krönig
• August Kundt
• August Musger
• August Seebeck
• August Seydler
• August Toepler
• August Witkowski
• Auguste Bravais
• Auguste Piccard
• Augustin-Jean Fresnel
• Augustin-Louis Cauchy
• Augusto Righi
• Augustus William Smith
• Aureole effect
• Aurora (astronomy)
• Aurora of November 17, 1882
• Auroral chorus
• Austin Model 1
• Australian Atomic Energy Commission
• Australian Journal of Physics
• Australian Nuclear Science and Technology Organisation
• Australian Synchrotron
• Autler–Townes effect
• Autocollimation
• Autocollimator
• Autodynamics
• Automated Radioxenon Sampler Analyzer
• Automatic calculation of particle interaction or decay
• Automobile drag coefficient
• Autonomous system (mathematics)
• Autorotation (helicopter)
• Autostereoscopy
• Auxetics
• Auxiliary field
• Auxiliary field Monte Carlo
• Available energy (particle collision)
• Avalanche breakdown
• Avery Gilbert
• Avishai Dekel
• Avogadro's law
• Avrami equation
• Avshalom Elitzur
• Axel Scherer
• Axel T. Brunger
• Axial-flow pump
• Axial multipole moments
• Axial pen force
• Axial precession
• Axial ratio
• Axial tilt
• Axiality and rhombicity
• Axicon
• Axilrod–Teller potential
• Axino
• Axiomatic quantum field theory
• Axion
• Azeotrope
• Azimuthal quantum number