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Physics Library Encyclopedia

1406 articles and 4175 concepts available to explore.

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Choose a letter to browse its article titles, synonyms, and defined concepts.

Entries beginning with P

  1. p~
    Defined in notations of fundamental concepts in physics | Owned by bci1
  2. P_k]
    Defined in canonical commutation and anti-commutation relations: their representations | Owned by bci1
  3. pacs:02.30.Lt
    Defined in Fourier Series on a General Interval | Owned by bloftin
  4. pacs:45.50.-j
    Defined in Angular Momentum, Areal Velocity, and Kepler's Second Law | Owned by bloftin
  5. $p-adic$ measure
    Defined in Nicolae Popescu | Owned by bci1
  6. pairwise gravitational force
    Defined in Newton's law of universal gravitation | Owned by bloftin
  7. Palade
    Defined in George Palade | Owned by bci1
  8. papilloma virus
    Defined in Fluorescence cross-correlation spectroscopy (FCCS) | Owned by bci1
  9. papilloma virus detection
    Defined in Fluorescence cross-correlation spectroscopy (FCCS) | Owned by bci1
  10. parabolic orbit
    Defined in Orbit Equation, Conic Sections, and Kepler's First Law | Owned by bloftin
  11. paracrystal scattering and diffraction
    Defined in Bessel functions: applications to diffraction by helical structures | Owned by bci1
  12. paragroups
    Synonym for groupoids topic | Owned by bci1
  13. parallax
    Owned by bloftin
  14. Parallel-Axis and Perpendicular-Axis Theorems
    Owned by bloftin
  15. parallel-axis theorem
    Defined in Parallel-Axis and Perpendicular-Axis Theorems | Owned by bloftin
  16. parallel-plate electric field
    Defined in Building an Electronic Electroscope, Electric Charge, Induction, and Measurable Electric Fields | Owned by bloftin
  17. parameter
    Owned by bci1
  18. parameter-dependent family of groupoids
    Defined in variable groupoid | Owned by bci1
  19. parameter-dependent topology
    Synonym for variable topology | Owned by bci1
  20. parametric operator
    Owned by Jon Awbrey
  21. parity
    Defined in examples of constants of the motion | Owned by bloftin
  22. Parseval relation
    Defined in Fourier Analysis, Wave Packets, and Dispersion | Owned by bloftin
  23. Parseval relation
    Defined in GRE Physics Companion: Fourier Analysis, Wave Packets, and Dispersion | Owned by bloftin
  24. Partial Derivatives for Waves
    Synonym for Wave Mechanics: Partial Derivatives for Waves | Owned by bloftin
  25. partial differential equations
    Defined in differential equations | Owned by bloftin
  26. partial function
    Defined in relation theory | Owned by Jon Awbrey
  27. partial pressure
    Defined in Dalton's law | Owned by pahio
  28. partial sum
    Defined in Periodic Functions, Harmonics, and Why Fourier Series Exist | Owned by bloftin
  29. particle
    Owned by bloftin
  30. particle accelerator
    Defined in large hadron collider | Owned by bci1
  31. example of particle
    Owned by bloftin
  32. particle physics
    Defined in High energy physics | Owned by bci1
  33. particle physics
    Synonym for High energy physics | Owned by bci1
  34. particle scattering
    Defined in Atomic and nuclear structure | Owned by bci1
  35. particle velocity
    Defined in Acoustic Waves, Sound Intensity, and Acoustic Impedance | Owned by bloftin
  36. partons
    Defined in gluons, quarks and QCD | Owned by bci1
  37. Pascal
    Defined in topic on computational physics | Owned by bci1
  38. path-adaptive launch guidance
    Defined in From Goddard's Unsolved Variational Rocket Problem to Saturn IGM: Calculus of Variations in Rocket Development | Owned by bloftin
  39. path-dependent work
    Defined in Work by Variable Forces | Owned by bloftin
  40. path independence
    Defined in Conservative Forces and Potential Energy | Owned by bloftin
  41. path independence of work
    Owned by mdo
  42. path integral
    Synonym for line integral | Owned by bloftin
  43. Pauli exclusion principle
    Owned by invisiblerhino
  44. P-brane
    Defined in M-theory | Owned by bci1
  45. pdf
    Defined in probability distribution functions in physics | Owned by bci1
  46. PDP
    Defined in plasma | Owned by bci1
  47. penny falling from Empire State Building
    Owned by bloftin
  48. perfectly inelastic collision
    Defined in Collisions in One Dimension | Owned by bloftin
  49. perfectly inelastic collision
    Defined in GRE Physics Companion: Collisions in One Dimension | Owned by bloftin
  50. Perifocal State Vectors: Reconstructing Position and Velocity from Orbital Elements
    Owned by bloftin
  51. period
    Defined in oscillation | Owned by bloftin
  52. period
    Defined in Periodic Functions, Harmonics, and Why Fourier Series Exist | Owned by bloftin
  53. Period Derivation for the Simple Harmonic Oscillator
    Owned by bloftin
  54. periodic
    Defined in oscillation | Owned by bloftin
  55. periodic function
    Defined in Periodic Functions, Harmonics, and Why Fourier Series Exist | Owned by bloftin
  56. Periodic-Function and Harmonic-Building Exercises
    Owned by bloftin
  57. examples of periodic functions
    Owned by pahio
  58. Periodic Functions, Harmonics, and Why Fourier Series Exist
    Owned by bloftin
  59. periodicity
    Defined in oscillation | Owned by bloftin
  60. periodic motion
    Defined in oscillation | Owned by bloftin
  61. periodic oscillation
    Defined in oscillation | Owned by bloftin
  62. period-length mapping % pacs:02.30.Nw
    Defined in Fourier Series on a General Interval | Owned by bloftin
  63. perpendicular-axis theorem
    Defined in Parallel-Axis and Perpendicular-Axis Theorems | Owned by bloftin
  64. PET
    Defined in Atomic and nuclear structure | Owned by bci1
  65. phase
    Defined in oscillation | Owned by bloftin
  66. phase
    Defined in M06-01 Simple Harmonic Motion | Owned by bloftin
  67. phase
    Defined in Periodic Functions, Harmonics, and Why Fourier Series Exist | Owned by bloftin
  68. phase constant
    Defined in Electromagnetic Waves, Antennas, and RF: Wave Propagation in Materials | Owned by bloftin
  69. phase difference
    Defined in Beats, Interference, and Coherence | Owned by bloftin
  70. phase factor
    Defined in algebraic quantum field theories (AQFT) | Owned by bci1
  71. phase plane
    Defined in M06-01 Simple Harmonic Motion | Owned by bloftin
  72. phase shift
    Defined in Periodic Functions, Harmonics, and Why Fourier Series Exist | Owned by bloftin
  73. phase velocity
    Defined in Discrete Oscillator Chains and Dispersion | Owned by bloftin
  74. phase velocity
    Defined in Fourier Analysis, Wave Packets, and Dispersion | Owned by bloftin
  75. phase velocity
    Defined in GRE Physics Companion: Fourier Analysis, Wave Packets, and Dispersion | Owned by bloftin
  76. phasor
    Defined in Euler's Formula and the Complex Exponential Basis | Owned by bloftin
  77. phenomenological Bloch equations
    Defined in Felix Bloch | Owned by bci1
  78. \phi
    Defined in notations of fundamental concepts in physics | Owned by bci1
  79. phonons
    Defined in Quantum topological order and extended quantum symmetries | Owned by bci1
  80. phonons
    Defined in Quantum topological order and extended quantum symmetries | Owned by bci1
  81. photoelectric effect
    Owned by bloftin
  82. photometric passband
    Defined in Photometric Passbands and System Response: Throughput, Weighting, and Synthetic Photometry | Owned by bloftin
  83. Photometric Passbands and System Response: Throughput, Weighting, and Synthetic Photometry
    Owned by bloftin
  84. photon-counting response
    Defined in Photometric Passbands and System Response: Throughput, Weighting, and Synthetic Photometry | Owned by bloftin
  85. physical axiom or postulate
    Defined in algebraic quantum field theories (AQFT) | Owned by bci1
  86. physical binary
    Defined in Binary Stars as Physical Laboratories | Owned by bloftin
  87. physical laws
    Owned by bci1
  88. physical mathematics
    Synonym for mathematical physics | Owned by bci1
  89. physical mathematics
    Defined in fusion of theoretical physics with mathematics at IHES org | Owned by bci1
  90. physical mathematics
    Defined in topic on applied mathematical physics and physical mathematics | Owned by bci1
  91. Physical Meaning of Geometrical Propositions
    Owned by bloftin
  92. physical quantity
    Defined in Units and Dimensional Analysis in Mechanics | Owned by bloftin
  93. physical Universe
    Defined in Universe | Owned by bci1
  94. physics applications
    Synonym for applied physics | Owned by bci1
  95. physics area topics
    Defined in overview of the content of PlanetPhysics | Owned by bci1
  96. Physics news
    Owned by bci1
  97. piecewise linear
    Defined in geometrically defined double groupoid with connection | Owned by bci1
  98. piecewise-smooth extremal
    Defined in Calculus of Variations: Piecewise-Smooth Extremals and the Weierstrass-Erdmann Corner Conditions | Owned by bloftin
  99. pi-mesons
    Defined in gluons, quarks and QCD | Owned by bci1
  100. pions
    Defined in Elementary particles topic | Owned by bci1
  101. pivot wavelength
    Defined in Photometric Passbands and System Response: Throughput, Weighting, and Synthetic Photometry | Owned by bloftin
  102. Planck's law
    Synonym for Planck's radiation law | Owned by bloftin
  103. Planck's radiation law
    Owned by bloftin
  104. Plane polar coordinates
    Defined in Coordinate Systems for Mechanics | Owned by bloftin
  105. PlanetPhysics.org exchange with Wikipedia
    Defined in topic entry on Wikipedia physics & mathematics entries and exchange projects | Owned by bci1
  106. PlanetPhysics.org style guideline summary
    Owned by bci1
  107. plane wave
    Defined in Wave Equations in Two and Three Dimensions and Spherical Waves | Owned by bloftin
  108. plasma
    Owned by bci1
  109. plasma display panel
    Defined in plasma | Owned by bci1
  110. plasma electron
    Defined in non-linear electron excitation of plasma waves | Owned by bci1
  111. plasma heating
    Defined in plasma | Owned by bci1
  112. plasma ion temperature
    Defined in non-linear electron excitation of plasma waves | Owned by bci1
  113. plasma wave excitation
    Defined in non-linear electron excitation of plasma waves | Owned by bci1
  114. plate surface charge density
    Defined in Building an Electronic Electroscope, Electric Charge, Induction, and Measurable Electric Fields | Owned by bloftin
  115. PM website on Wikipedia
    Defined in topic entry on Wikipedia physics & mathematics entries and exchange projects | Owned by bci1
  116. Poincare' conjecture
    Defined in geometrization conjecture and theorem | Owned by bci1
  117. Poincar\'e group
    Defined in algebraic quantum field theories (AQFT) | Owned by bci1
  118. point division and position vectors
    Owned by bloftin
  119. point particle
    Defined in center of mass | Owned by bci1
  120. point particle
    Synonym for particle | Owned by bloftin
  121. Poisson algebra
    Defined in Poisson ring | Owned by rspuzio
  122. Poisson distribution
    Defined in probability distribution functions in physics | Owned by bci1
  123. Poisson ring
    Owned by rspuzio
  124. Poisson transformation
    Defined in quantum symmetry | Owned by bci1
  125. polar basis
    Defined in Coordinate Systems for Mechanics | Owned by bloftin
  126. polar coordinate motion example of generalized coordinates
    Owned by bloftin
  127. Polar Coordinate Particle Kinematics
    Owned by bloftin
  128. polar coordinates
    Defined in Coordinate Systems for Mechanics | Owned by bloftin
  129. polar form of a complex number
    Defined in Complex Numbers as Vectors in the Complex Plane | Owned by bloftin
  130. polarization
    Defined in Electrostatics, Charge, Induction, and an Electrometer | Owned by bloftin
  131. polarization ellipse
    Defined in Electromagnetic Waves, Antennas, and RF: Polarization of Electromagnetic Waves | Owned by bloftin
  132. polarization handedness
    Defined in Electromagnetic Waves, Antennas, and RF: Polarization of Electromagnetic Waves | Owned by bloftin
  133. polarization loss factor
    Defined in Electromagnetic Waves, Antennas, and RF: Polarization of Electromagnetic Waves | Owned by bloftin
  134. Polish group
    Owned by bci1
  135. Polish group
    Defined in Borel G-space | Owned by bci1
  136. Polish G-space
    Owned by bci1
  137. Polish space with group structure
    Synonym for Polish group | Owned by bci1
  138. Polish topology
    Defined in Borel G-space | Owned by bci1
  139. position
    Owned by Wkbj79
  140. position
    Defined in Position and Displacement in Mechanics | Owned by bloftin
  141. Position and Displacement in Mechanics
    Owned by bloftin
  142. position vector
    Owned by pahio
  143. positive charge
    Defined in Electric Charge | Owned by bloftin
  144. positive frequency
    Defined in Euler's Formula and the Complex Exponential Basis | Owned by bloftin
  145. positive proposition
    Defined in differential propositional calculus | Owned by Jon Awbrey
  146. positron annihilation
    Defined in Atomic and nuclear structure | Owned by bci1
  147. positron emission
    Defined in Atomic and nuclear structure | Owned by bci1
  148. potential difference
    Defined in Gravitational Potential Energy and Gravitational Potential | Owned by bloftin
  149. potential difference
    Defined in Practical Electricity and Measurement for Electrodynamics | Owned by bloftin
  150. potential energy
    Defined in energy | Owned by bloftin
  151. potential energy
    Defined in Conservative Forces and Potential Energy | Owned by bloftin
  152. potential-energy difference
    Defined in Conservative Forces and Potential Energy | Owned by bloftin
  153. potential of spherical shell
    Owned by pahio
  154. power
    Owned by bloftin
  155. Power
    Owned by bloftin
  156. power function
    Defined in growth of exponential function | Owned by pahio
  157. power reflection coefficient
    Defined in Electromagnetic Waves, Antennas, and RF: Boundary Waves - Reflection, Transmission, and Refraction | Owned by bloftin
  158. power reflection coefficient
    Defined in Waves on Strings: Reflection, Transmission, and Mechanical Impedance | Owned by bloftin
  159. power resonance
    Defined in Driven Harmonic Motion and Resonance | Owned by bloftin
  160. power series
    Owned by bloftin
  161. power transmission coefficient
    Defined in Electromagnetic Waves, Antennas, and RF: Boundary Waves - Reflection, Transmission, and Refraction | Owned by bloftin
  162. power transmission coefficient
    Defined in Waves on Strings: Reflection, Transmission, and Mechanical Impedance | Owned by bloftin
  163. Practical Electricity and Measurement for Electrodynamics
    Owned by bloftin
  164. preadditive functor
    Owned by bci1
  165. precession
    Defined in Gyroscopes, Precession, and Nutation | Owned by bloftin
  166. precise idea
    Synonym for general definition | Owned by bci1
  167. predicate
    Synonym for boolean-valued function | Owned by Jon Awbrey
  168. Preface: An Elementary Treatise On Quaternions
    Owned by bloftin
  169. Preface to the Second Edition: An Elementary Treatise On Quaternions
    Owned by bloftin
  170. prefunction
    Defined in relation theory | Owned by Jon Awbrey
  171. Preliminary definitions and general notions
    Owned by bloftin
  172. preservation properties
    Defined in Table of categories and functor properties | Owned by bci1
  173. presheaf
    Defined in Functorial Algebraic Geometry and Physics | Owned by bci1
  174. prime meridian
    Defined in locations on Earth | Owned by bloftin
  175. primitive cell
    Defined in Diatomic Oscillator Chains and Acoustic and Optical Branches | Owned by bloftin
  176. principal argument
    Defined in Complex Numbers as Vectors in the Complex Plane | Owned by bloftin
  177. Principal Axes and Principal Moments of Inertia
    Owned by bloftin
  178. principal axis
    Defined in Principal Axes and Principal Moments of Inertia | Owned by bloftin
  179. principal axis
    Defined in GRE Physics Companion: Principal Axes and Principal Moments of Inertia | Owned by bloftin
  180. principal-axis basis
    Defined in Principal Axes and Principal Moments of Inertia | Owned by bloftin
  181. principal-axis basis
    Defined in GRE Physics Companion: Principal Axes and Principal Moments of Inertia | Owned by bloftin
  182. principal moment of inertia
    Defined in Principal Axes and Principal Moments of Inertia | Owned by bloftin
  183. principal moment of inertia
    Defined in GRE Physics Companion: Principal Axes and Principal Moments of Inertia | Owned by bloftin
  184. Principle of Indetermination
    Synonym for uncertainty by waves | Owned by pahio
  185. principle of minimum action
    Synonym for Fermat's principle | Owned by bci1
  186. principle of stationary action
    Defined in Calculus of Variations: Hamilton's Principle and Classical Mechanics | Owned by bloftin
  187. Principle of the communication of heat
    Owned by bloftin
  188. principles of NIR spectroscopy
    Owned by vip6
  189. principles of quantum physics
    Owned by bci1
  190. principles of thermodynamics
    Owned by bci1
  191. probability distribution function
    Defined in probability distribution functions in physics | Owned by bci1
  192. probability distribution functions in physics
    Owned by bci1
  193. probability measure
    Defined in probability distribution functions in physics | Owned by bci1
  194. probe loading
    Defined in Practical Electricity and Measurement for Electrodynamics | Owned by bloftin
  195. product of inertia
    Defined in The Inertia Tensor and Products of Inertia | Owned by bloftin
  196. products of two vectors
    Synonym for vector product | Owned by bloftin
  197. program
    Defined in supercomputers | Owned by bci1
  198. program
    Defined in computer | Owned by bci1
  199. program
    Owned by bci1
  200. programmed automaton
    Synonym for computer | Owned by bci1
  201. programmed sequential machine
    Synonym for computer | Owned by bci1
  202. programming
    Synonym for topic on computer programming | Owned by bci1
  203. programming language
    Defined in program | Owned by bci1
  204. programming language
    Defined in topic on computational physics | Owned by bci1
  205. projected motion
    Defined in ballistics (2D) | Owned by vip6
  206. projected separation
    Defined in Binary Stars as Physical Laboratories | Owned by bloftin
  207. projectile motion
    Owned by bloftin
  208. projection coefficient
    Defined in Inner Products of Functions | Owned by bloftin
  209. projective object
    Owned by bci1
  210. propagation constant
    Defined in Electromagnetic Waves, Antennas, and RF: Wave Propagation in Materials | Owned by bloftin
  211. proper generator in a Grothendieck category
    Owned by bci1
  212. proper generator theorem
    Owned by bci1
  213. properties of commutators
    Synonym for commutator algebra | Owned by bloftin
  214. proposition
    Synonym for boolean-valued function | Owned by Jon Awbrey
  215. proton accelerator
    Defined in Atomic and nuclear structure | Owned by bci1
  216. proton spin fine structure
    Defined in gluons, quarks and QCD | Owned by bci1
  217. pseudowork
    Defined in Energy Methods for Particle Systems | Owned by bloftin
  218. \psi
    Defined in notations of fundamental concepts in physics | Owned by bci1
  219. PSS
    Defined in large hadron collider | Owned by bci1
  220. Pulley
    Defined in Pulleys and Atwood Machines | Owned by bloftin
  221. Pulleys and Atwood Machines
    Owned by bloftin
  222. pure state
    Defined in algebraic quantum field theories (AQFT) | Owned by bci1
  223. pushout
    Defined in Van Kampen Theorem for groups and groupoids | Owned by bci1