The index of physics articles is split into multiple pages due to its size.

To navigate by individual letter use the table of contents below.

B

B-factory B-tagging B-theory of time B. V. Bowden, Baron Bowden B2FH paper BBGKY hierarchy BCS: 50 Years (book) BCS theory BESS (experiment) BESSY BF model BKL singularity BL Lac object BOOMERanG experiment BPST instanton BRST formalism BRST quantization BTZ black hole BTeV experiment BX442 B Reactor B meson B − L BaBar experiment Baby brane Bach tensor Back-reaction Back pressure Back scattering alignment Background-oriented schlieren technique Background count Background field method Background independence Background noise Background radiation Backscatter Backscatter X-ray Backward-wave media Backward wave oscillator Bad Science: The Short Life and Weird Times of Cold Fusion Bagger–Lambert–Gustavsson action Bagnold formula Bahram Mashhoon Baien Tomlin Baikal Deep Underwater Neutrino Telescope Bainbridge mass spectrometer Baksan Neutrino Observatory Bak–Tang–Wiesenfeld sandpile Baldwin–Lomax model Balfour Stewart Ball bearing motor Ball lightning Ballistic coefficient Ballistic conduction Ballistic galvanometer Ballistic pendulum Ballistic reentry Ballistic transport Ballotechnics Balmer series Balseiro Institute Balthasar van der Pol Balázs Győrffy Banana equivalent dose Band bending Band diagram Band gap Band mapping Band of stability Band offset Bandwidth-limited pulse Banesh Hoffmann Bangladesh Council of Scientific and Industrial Research Banked turn Banks–Zaks fixed point Barber–Layden–Power effect Bare mass Bargeboard (aerodynamics) Bargmann's limit Bargmann–Wigner equations Barkhausen effect Barlow's law Barlow lens Barn (unit) Barnett effect Baroclinity Barotropic Barotropic vorticity equation Barrel (disambiguation) Barrett–Crane model Barry M. McCoy Barry Simon Barton's Pendulums Barton Zwiebach Baryogenesis Baryon Baryon Oscillation Spectroscopic Survey Baryon acoustic oscillations Baryon asymmetry Baryon number Baryon spectroscopy Baryonic dark matter Bas Pease Bascom S. Deaver Base conditions Basic concepts of quantum mechanics Basic physics of the violin Basil Hiley Basil Schonland Basilis C. Xanthopoulos Bass trap Basset force Basset–Boussinesq–Oseen equation Batalin–Vilkovisky formalism Batchelor vortex Bathochromic shift Battelle Memorial Institute Beale number Beam crossing Beam diameter Beam divergence Beam dump Beam emittance Beam expander Beam homogenizer Beam parameter product Beam propagation method Beam splitter Beamline Beard and Chuang model Beat (acoustics) Beatrice Tinsley Beaufort scale Beckmann thermometer Becquerel Bedford Level experiment Beer–Lambert law Beetle (ASIC) Behavior of nuclear fuel during a reactor accident Behram Kurşunoğlu Beijing Electron–Positron Collider II Bejan number Bekenstein bound Bel decomposition Belinski–Zakharov transform Bell's spaceship paradox Bell's theorem Bell Labs Bell mouth Bell test experiments Belle experiment Belousov–Zhabotinsky reaction Belt of Venus Beltrami vector field Ben Lockspeiser Ben Roy Mottelson Bending Bending moment Benedict Friedlaender Benedict–Webb–Rubin equation Bengt Edlén Benjamin Fain Benjamin Markarian Benjamin Schumacher Benjamin W. Lee Benjamin–Bona–Mahony equation Bennett Lewis Benny Lautrup Beno Gutenberg Benoît Paul Émile Clapeyron Berendsen thermostat Bergmann's rule Berkeley Physics Course Bernard Brunhes (physicist) Bernard Cohen (physicist) Bernard Eastlund Bernard F. Schutz Bernard H. Lavenda Bernard Haisch Bernard Julia Bernard Katz Bernard Lovell Bernard Picinbono Bernard T. Feld Bernard d'Espagnat Bernard de Wit Bernardo Huberman Bernhard Caesar Einstein Bernhard Philberth Bernhard Schmidt Bernoulli's principle Berry connection and curvature Bert Broer Bert Schroer Berta Karlik Bertha Swirles Bertram Batlogg Bertram Boltwood Bertram Brockhouse Bertram Eugene Warren Bertrand's theorem Bertrand Halperin Berzelium Beta-M Beta-decay stable isobars Beta (plasma physics) Beta (velocity) Beta barium borate Beta decay Beta function (disambiguation) Beta function (physics) Beta particle Beta plane Beta rays Betatron Bethe ansatz Bethe formula Bethe lattice Bethe–Bloch formula Bethe–Feynman formula Bethe–Salpeter equation Bethe–Weizsäcker formula Bethe–Weizsäcker process Betti's theorem Betz' law Bevatron Beverly Clock Beyond Einstein (book) Beyond Einstein program Bhabha scattering Bhangmeter Bhatnagar–Gross–Krook operator Bhāskara's wheel Bi-hemispherical reflectance Bi-isotropic material Bi-scalar tensor vector gravity Biaxial nematic Bibcode Bibliography of popular physics books Bicycle and motorcycle dynamics Bidirectional reflectance distribution function Bidirectional scattering distribution function Biefeld–Brown effect Biermann battery Biexciton Bifilar coil Bifurcation theory Big Bang Big Bang (Singh book) Big Bang nucleosynthesis Big Bounce Big Crunch Big European Bubble Chamber Big Freeze Big Rip Bilayer Bilepton Bill Wattenburg Billiard-ball computer Bimetallic strip Bimetric theory Bimoment Binary entropy function Binary pulsar Binary star Binder parameter Binding energy Binet equation Bingham plastic Binoviewer Bioacoustics Bioceramic Bioelectromagnetics Bioelectromagnetism Biogeophysics Biological thermodynamics Biological transmutation Biomaterial Biomechanics Bion (physics) Biophoton Biophotonics Biophysical Journal Biophysical Society Biophysical techniques Biophysics Biot number Biot–Savart law Biplane Bipolaron (physics) Biquaternion Birch's law Birch–Murnaghan equation of state Bird flight Birefringence Birkeland current Birkhoff's theorem (electromagnetism) Birkhoff's theorem (relativity) Birmingham Solar Oscillations Network Bismuth strontium calcium copper oxide Bispectral analysis Bispinor Bistatic Doppler shift Bistatic range Bivector Bjarne Tromborg Bjerrum defect Björn Engquist Bjørn Wiik Black-Body Theory and the Quantum Discontinuity Black-hole cosmology BlackLight Power Black Holes and Time Warps Black Star (semiclassical gravity) Black body Black brane Black hole Black hole bomb Black hole complementarity Black hole electron Black hole information paradox Black hole starship Black hole thermodynamics Black light Black noise Black silicon Black star (semiclassical gravity) Black string Blackbody infrared radiative dissociation Blackburn pendulum Blackett effect Blade element theory Blade pitch Blaise Pascal Blake number Blandford–Znajek process Blas Cabrera Blas Cabrera Felipe Blasius boundary layer Blast wave Blazar Blended wing body Blinking colloidal nanocrystals Bloch-Grüneisen temperature Bloch wall Bloch's theorem Bloch wave – MoM method Bloom (test) Blown flap Blue laser Blue shift Blueshift Bo Sundqvist Bo Thidé Bob (physics) Bob White (geophysicist) Body centred cubic metal Boeing X-53 Active Aeroelastic Wing Bogdan Maglich Bogdanov Affair Bogoliubov transformation Bogoliubov–Parasyuk theorem Bogolyubov Prize (NASU) Bogolyubov Prize for young scientists Bogomol'nyi-Prasad-Sommerfield bound Bogomol'nyi–Prasad–Sommerfield bound Bohm diffusion Bohr magneton Bohr model Bohr radius Bohr–Einstein debates Bohr–Sommerfeld theory Bohr–van Leeuwen theorem Bohumil Kučera Boiling point Boilover Bolometer Bolometric correction Boltzmann's entropy formula Boltzmann-Matano analysis Boltzmann Medal Boltzmann constant Boltzmann distribution Boltzmann entropy Boltzmann equation Boltzmann factor Boltzmann relation Bond albedo Bond number Bondi k-calculus Bonding in solids Bonnard J. Teegarden Bonner sphere Bonnet's theorem Bonnor beam Boojum (superfluidity) Book of Optics Bootstrap model Bootstrap paradox Borda–Carnot equation Borexino Boris Aleksandrovich Mamyrin Boris Altshuler Boris Bakhmeteff Boris Borisovich Galitzine Boris Chirikov Boris Gerasimovich Boris Hessen Boris Kerner Boris Laschka Boris Nikolsky Boris P. Stoicheff Boris Pavlovich Belousov Boris Podolsky Boris Rauschenbach Boris Vorontsov-Velyaminov Born approximation Born coordinates Born probability Born rigidity Born rule Born–Huang approximation Born–Infeld model Born–Infeld theory Born–von Karman boundary condition Borrmann effect Bose gas Bosenova Bose–Einstein condensate Bose–Einstein condensation (network theory) Bose–Einstein correlations Bose–Einstein statistics Bose–Hubbard model Boson Boson star Bosonic field Bosonic string theory Bosonization Bottom Lambda baryon Bottom eta meson Bottom quark Bottomness Bouguer's law Bouguer anomaly Bouguer plate Bound state Boundary-layer thickness Boundary conformal field theory Boundary element method Boundary layer Boundary layer control Boundary layer suction Boundary layer transition Boundary lubrication Boussinesq approximation (buoyancy) Boussinesq approximation (water waves) Bousso's holographic bound Bow shocks in astrophysics Bow shock (aerodynamics) Bow wave Bowen ratio Box orbit Boyce McDaniel Boyd Bartlett Boyer–Lindquist coordinates Boyle's law Bra–ket notation Brackett series Bragg's law Bragg diffraction Bragg peak Bragg–Gray cavity theory Braid statistics Brake force Bram van Leer Branches of physics Branching fraction Brandon Carter Brane cosmology Brans–Dicke theory Bravais lattice Brayton cycle Breaking wave Breakthrough Propulsion Physics Program Breather Brebis Bleaney Bred vector Breit equation Bremermann's limit Bremsstrahlung Brendan Scaife Brewster's angle Brewster angle microscope Brian Cox (physicist) Brian David Josephson Brian Greene Brian L. DeMarco Brian May Brian Pippard Brian Schmidt Brian Spalding Brian Swimme Bridge scour Bridgman's thermodynamic equations Bridgman effect Bridgman–Stockbarger technique Brightest cluster galaxy Brillouin and Langevin functions Brillouin scattering Brillouin zone Brinell scale Brinkman number Brinkmann coordinates British Atomic Scientists Association British Geophysical Association Brittleness Broad iron K line Broken symmetry Brooke Benjamin Brookhaven National Laboratory Brosl Hasslacher Brown dwarf Brown dwarf desert Brownian dynamics Brownian motor Brownian noise Brownian ratchet Bruce Allen (physicist) Bruce Bolt Bruce Cork Bruce H. Billings Bruce Maccabee Bruce Winstein Bruno Augenstein Bruno Bertotti Bruno Pontecorvo Bruno Rossi Bruno Rossi Prize Bruno Thüring Bruno Touschek Bruno Zumino Brunt–Väisälä frequency Bruria Kaufman Brush discharge Bryan Higgins Bryce DeWitt Bubble chamber Bubble fusion Bubble ring Bubble universe theory Bucket argument Buckingham (unit) Buckingham π theorem Buckley–Leverett equation Buckling Buckypaper Bud Grace Buffer (optical fiber) Building engineering physics Bulk density Bulk modulus Bulk temperature Bulletin of the Atomic Scientists Bulletin of the Lebedev Physics Institute Bullough–Dodd model Bumblebee models Bunji Sakita Bunsaku Arakatsu Buoyancy Burgers' equation Burgers material Burgers vector Burkard Hillebrands Burkhard Heim Burns temperature Burnup Burst noise Burt Ovrut Burton Richter Busemann biplane Buttered cat paradox Butterfly effect Béla Karlovitz Bülent Atalay B–Bbar oscillation