Lably
Skip to contentD
- D mesonParticle in physics
- D-braneExtended objects found in string theory
- D'Alembert's paradoxParadox by d'Alembert on fluid dynamics
- D'Alembert's principleStatement in classical mechanics
- DAMA/LIBRAParticle detector experiment
- DampingInfluence on an oscillating physical system which reduces or prevents its oscillation
- Damping factorIn an audio system, the damping factor is defined as the ratio of the rated impedance of t
- Dangling bondState of an immobilized atom in chemistry
- Daniel KastlerDaniel Kastler (French: ; 4 March 1926 – 4 July 2015) was a French theoretical physicist,
- Dannie Heineman Prize for Mathematical PhysicsAward conferred by the APS and the AIP
- Darcy friction factor formulaeEquations for calculations of the Darcy friction factor
- Darcy–Weisbach equationEquation in fluid dynamics
- Darcy's lawEquation describing the flow of a fluid through a porous medium
- Daresbury LaboratoryLaboratory in Halton, Cheshire, England
- Dark fluidReconciliation between dark energy and dark matter
- Dark photonHypothetical force carrier particle connected to dark matter
- Dark radiationDark radiation (also dark electromagnetism) is a postulated type of radiation that mediate
- Dark star (Newtonian mechanics)Object with escape velocity exceeding the speed of light
- DarknessLack of light
- Dartington CrystalBritish glassware manufacturer
- Darwin CraterDarwin Crater is a suspected meteorite impact crater in Western Tasmania about 26 km (16 m
- Darwin glassNatural tektite glass found in Tasmania
- Darwin LagrangianLagrangian used in classical electrodynamics
- Daryl ChapinAmerican physicist
- Data publishingData publishing (also data publication) is the act of releasing research data in published
- Daum (studio)Maker of decorative glass in Nancy, France
- David Adler (physicist)American physicist and MIT professor
- David BohmAmerican-Brazilian-British scientist (1917–1992)
- David Chapman (chemist)English physical chemist
- David K. ChengChinese-American professor of electrical engineering
- David Mervyn BlowBritish biophysicist (1931–2004)
- Davisson–Germer experimentExperiment verifying the wave-particle duality of matter
- Davydov solitonIn quantum biology, the Davydov soliton (after the Soviet Ukrainian physicist Alexander Da
- Daya BayDaya Bay (simplified Chinese: 大亚湾; traditional Chinese: 大亞灣; pinyin: Dàyà Wān; Jyutping: d
- Daya Bay Reactor Neutrino ExperimentParticle physics experiment studying neutrinos
- DC motorMotor which works on direct current
- De Broglie–Bohm theoryInterpretation of quantum mechanics
- De Laval nozzlePinched tube generating supersonic flow
- De MagneteBook by William Gilbert
- De Sitter invariant special relativitySpecial relativity formed using the SO(4,1) symmetry group
- De Sitter universeCosmological solution to the Einstein field equations of general relativity
- De Sitter–Schwarzschild metricMetric for black holes in general relativity
- DealkalizationDealkalization is a process of surface modification applicable to glasses containing alkal
- Dean numberDimensionless group in fluid mechanics
- Deborah BerebichezMexican physicist
- Debye lengthMeasure of electrostatic effect and how far it persists
- Debye modelMethod in physics
- Debye sheathPlasma layer with a positive charge
- Debye–Hückel equationThe chemists Peter Debye and Erich Hückel noticed that solutions that contain ionic solute
- Debye–Waller factorConcept in crystallography
- Decay chainSeries of radioactive decays
- Decay energyEnergy change of a nucleus after radioactive decay
- Decay heatHeat generated from radioactive decay
- Decay productRemaining nuclide left over from radioactive decay
- Decay schemeGraphical presentation of transitions occurring in decay of a radioactive substance
- Deep Impact (spacecraft)NASA space probe launched in 2005
- Deep inelastic scatteringType of collision between subatomic particles
- Deep Underground Neutrino ExperimentUnder-construction physics experiment facility in the United States
- Deep-level transient spectroscopyTool for studying defects in semiconductors
- DeflagrationCombustion that leads on to an explosion
- Deflected slipstreamDeflected slipstream is an approach to creating an aircraft that can take off and land ver
- Defocus aberrationQuality of an image being out of focus
- Deformable mirrorMirror whose surface can be deformed
- Deformation (engineering)Change in the shape or size of an object
- Deformation (physics)Transformation of a body from a reference configuration to a current configuration
- DegassingRemoval of dissolved gases from liquids
- DegaussingProcess of decreasing or eliminating a remnant magnetic field
- Degenerate energy levelsEnergy level of a quantum system
- Degenerate matterType of dense exotic matter in physics
- Degree (temperature)Term used in defining several scales of temperature
- Degree of ionizationFraction of charged particles in a gas or an aqueous solution
- Degrees of freedom (mechanics)Number of independent parameters needed to define the state of a mechanical system
- Degrees of freedom (physics and chemistry)Independent parameter describing the state of a physical system
- Delayed-choice quantum eraserPhysics experiment in quantum mechanics
- Delta baryonFamily of subatomic particles
- Delta potentialModel of an energy potential in quantum mechanics
- Delta-vMeasure of amount of effort to change trajectory
- Demagnetizing fieldInternal magnetic field generated by a magnet
- Demetrios ChristodoulouGreek mathematician and physicist (born 1951)
- Demon core1945–1946 sphere of plutonium
- Dennis Gabor Medal and PrizeInstitute of Physics award
- DensityMass per unit volume
- Density functional theoryComputational quantum mechanical modelling method to investigate electronic structure
- Density gradientDensity gradient is a spatial variation in density over a region. The term is used in the
- Density matrixMathematical tool in quantum physics
- Density of statesNumber of available physical states per energy unit
- Dental prosthesisA dental prosthesis is an intraoral (inside the mouth) prosthesis used to restore (reconst
- Denys Wilkinson BuildingThe Denys Wilkinson Building is a prominent 1960s building in Oxford, England, designed by
- DephasingMechanism recovering classical behavior from a quantum system
- Depletion regionInsulating region in a semiconductor
- Deposition (aerosol physics)Process by which aerosol particles collect onto solid surfaces
- Deposition (phase transition)Phase transition from gas to solid
- Depth of fieldLength of area in visual focus
- Depth of focusDepth of focus is a lens optics concept that measures the tolerance of placement of the im
- Derivation of the Navier–Stokes equationsEquations of fluid dynamics
- Derivations of the Lorentz transformationsThere are many ways to derive the Lorentz transformations using a variety of physical prin
- DesorptionRelease of an atoms or molecules from a surface
- DESYGerman national research center
- DESY (particle accelerator)The particle accelerator DESY (acronym for Deutsches Elektronen-Synchrotron or German Elec
- Detailed balancePrinciple in kinetic systems
- Detection of internally reflected Cherenkov lightIn particle detectors a detection of internally reflected Cherenkov light (DIRC) detector
- Deterministic systemSystem in which no randomness is involved in determining its future states
- DetonationExplosion at supersonic velocity
- Deuterium fusionNuclear fusion forming a helium-3 nucleus
- Developable rollerIn geometry, a developable roller is a convex solid whose surface consists of a single con
- DewettingRetraction of a fluid from a surface it was forced to cover
- Dialysis tubingMembrane tubing
- DiamagnetismMagnetic property of ordinary materials
- Diamond anvil cellDevice for generating extremely high pressures
- Diamond cubicType of crystal structure
- Diamond Light SourceScientific facility in Oxfordshire, England
- Diaphragm (optics)Thin opaque structure with an opening (aperture) at its center
- Diathermal wallBarrier permeable to heat but not matter
- Diatomic carbonChemical compound
- Dichroic glassDichroic glass is glass which can display multiple different colors depending on lighting
- DichroismReflecting only some colours of light
- DichromatismPhenomenon where a material's hue is dependent on properties of the substance
- Dicke stateQuantum state
- DielectricElectrically insulating substance able to be polarised by an applied electric field
- Dielectric heatingHeating using radio waves
- Dielectric lossElectromagnetic energy dissipated by a dielectric
- Dielectric strengthDegree of insulation
- DielectrophoresisParticle motion in a non-uniform electric field due to dipole-field interactions
- Diesel cycleEngine combustion process
- Differential interference contrast microscopyOptical microscopy technique
- Differential pulleySelf-balancing mechanical lifting hoist
- DiffractionInterference phenomenon of waves
- Diffraction-limited systemOptical system with resolution performance at the instrument's theoretical limit
- Diffuse reflectionReflection with light scattered at random angles
- Diffuse seriesSeries of lines in atomic spectra
- Diffusing-wave spectroscopyDiffusing-wave spectroscopy (DWS) is an optical technique derived from dynamic light scatt
- DiffusionTransport of dissolved species from the highest to the lowest concentration region
- Diffusion (acoustics)Spreading of sound energy
- Diffusion currentType of semiconductor current
- Diffusion dampingPhysical process in cosmology
- Diffusion equationEquation that describes density changes of a material that is diffusing in a medium
- Diffusion-limited aggregationProcess of particles clustering together
- Digital holographic microscopyQuantitative phase microscope
- Digital object identifierISO standard unique string identifier for a digital object
- DIII-DFusion energy facility in California, USA
- DilatantMaterial in which viscosity increases with the rate of shear strain
- DilatometerInstrument measuring volume changes
- Dilution of precisionPropagation of error with varying topology
- Dimensional reductionIn physics, dimensional reduction refers to the description of a system in D spacetime dim
- Dimensional regularizationMethod in evaluating divergent integrals
- Dimensionless physical constantPhysical constant with no units
- Dimensionless quantityPhysical quantity with no units
- Dimitri NanopoulosGreek physicist
- Diode-pumped solid-state laserType of laser
- Diósi–Penrose modelPossible solution to the measurement problem
- Dip-pen nanolithographyScanning probe lithographic technique
- DipoleElectromagnetic phenomenon
- Dipole magnetSimplest type of magnet
- Dipole model of Earth's magnetic fieldSimple approximation of Earth's magnetic field
- Dirac equationRelativistic quantum mechanical wave equation
- Dirac large numbers hypothesisHypothesis relating age of the universe to physical constants
- Dirac matterCondensed matter system
- Dirac Medal (IOP)Prize awarded by the Institute of Physics
- Dirac operatorFirst-order differential linear operator on spinor bundle, whose square is the Laplacian
- Dirac spinorMathematical description of fermions
- Direct and indirect band gapsTypes of energy range in a solid where no electron states can exist
- Direct currentUnidirectional flow of electric charge
- Direct methods (crystallography)In crystallography, direct methods are a family of methods for estimating the phases of th
- Directional stabilityDirectional stability is the tendency of a vehicle or moving body to keep its orientation
- Dirk PolderDirk Polder (23 August 1919 – 18 March 2001) was a Dutch physicist working on solid-state
- Discovery of nuclear fission1938 achievement in physics
- Discovery of the neutronScientific background leading to the discovery of subatomic particles
- DislocationLinear crystallographic defect or irregularity
- Dispersion (optics)Effect of a material on light
- Dispersion (water waves)Dispersion of waves on a water surface
- Dispersion relationRelation of wavelength/wavenumber as a function of a wave's frequency
- Dispersion stainingThe optical properties of all liquid and solid materials change as a function of the wavel
- Dispersive adhesionDispersive adhesion, also called adsorptive adhesion, is a mechanism for adhesion which at
- Dispersive prismDevice used to disperse light
- Displacement (geometry)Vector relating the initial and the final positions of a moving point
- Displacement current densityPhysical quantity in electromagnetism
- Displacement field (mechanics)In mechanics, a displacement field is the assignment of displacement vectors for all point
- DissipationIrreversible transformation of energy into forms less capable of doing work
- Dissipation factorMeasure of loss-rate of energy of a mode of oscillation in a dissipative system
- Dissipative operatorIn mathematics, a dissipative operator is a linear operator A defined on a linear subspace
- Dissipative particle dynamicsDissipative particle dynamics (DPD) is an off-lattice mesoscopic simulation technique whic
- Dissipative systemThermodynamically open system which is not in equilibrium
- Distance measureCosmological formulas for expanding universe
- Distance modulusLogarithmic distance scale
- Distortion (optics)Deviation from rectilinear projection (optics)
- Distributed acoustic sensingType of sensor
- Distribution function (physics)Function of seven variables
- Dominant wavelengthAny monochromatic spectral light that evokes the corresponding perception of hue
- Donald D. ClaytonAmerican astrophysicist (1935–2024)
- Donald GlaserAmerican physicist and biologist (1926–2013)
- DONUTExperiment at Fermilab
- DopantSubstance added to material to alter its properties
- Doping (semiconductor)Intentional introduction of impurities into an intrinsic semiconductor
- Doppler coolingLaser cooling technique
- Doppler effectFrequency change of a wave for observer relative to its source
- Doppler spectroscopyIndirect method for finding extrasolar planets and brown dwarfs
- DopplereffektDopplereffekt (German for 'Doppler effect') is an electronic music act from Detroit which
- DosimeterDevice measuring ionizing radiation exposure
- DosimetryMeasurement of absorbed ionizing radiation
- Double beta decayType of radioactive decay
- Double ChoozNeutrino oscillation experiment
- Double electron captureMode of radioactive decay
- Double ionizationRapid removal of two electrons from an atom
- Double layer (plasma physics)Structure in a plasma
- Double-slit experimentPhysics experiment
- Doublet–triplet splitting problemIn particle physics, the doublet–triplet (splitting) problem is a problem of some Grand Un
- Doubling timeTime required to double a quantity
- Doubly special relativityGeneralization of special relativity
- Down quarkType of quark
- Drag (physics)Retarding force on a body moving in a fluid
- Drag coefficientDimensionless parameter to quantify fluid resistance
- Drag equationEquation for the force of drag
- Drell–Yan processProcess in high-energy hadron–hadron scattering
- Drift velocityAverage velocity of particles mainly moving randomly
- Drilling engineeringDrilling engineering is a subset of petroleum engineering.
- Drinking birdNovelty toy heat engine
- Drop impactResult of a liquid droplet striking a solid or liquid surface
- Droplet-based microfluidicsDroplet-based microfluidics manipulate discrete volumes of fluids in immiscible phases wit
- Dry iceSolid form of carbon dioxide
- DU spectrophotometerFirst commercially viable UV-visible light absorbance instrument
- Dual cone and polar coneDual cone and polar cone are closely related concepts in convex analysis, a branch of math
- Dual latticeIn the theory of lattices, the dual lattice is a construction analogous to that of a dual
- DuctilityDegree to which a material under stress irreversibly deforms before failure
- Duhem–Margules equationThe Duhem–Margules equation, named for Pierre Duhem and Max Margules, is a thermodynamic s
- Dulong–Petit lawEmpirical thermodynamic law
- Dungey CycleThe Dungey cycle, officially proposed by James Dungey in 1961, is a phenomenon that explai
- DuralexFrench glassware manufacturer
- Durmus A. DemirTurkish theoretical physicist (1967–2024)
- Dust solutionIn general relativity, a dust solution is a fluid solution, a type of exact solution of th
- Dynamic equilibriumChemical equilibrium of a reversible reaction
- Dynamic light scatteringTechnique for determining size distribution of particles
- Dynamic network analysisEmergent scientific field in sociology and statistics
- Dynamic nuclear polarizationSubatomic physics phenomenon
- Dynamic pressureKinetic energy per unit volume of a fluid
- Dynamic rolloverFlight safety situation
- Dynamic speckleConcept in physics
- Dynamical picturesFormulations of quantum mechanics
- Dynamical simulationDynamical simulation, in computational physics, is the simulation of systems of objects th
- Dynamical theory of diffractionMultiple diffraction of waves
- Dyson seriesExpansion of the time evolution operator
