-
649.
Planetology
Subjects
Planets
-
650.
Planets
Subjects
-
651.
Planispheres
Subjects
Astronomy
-
652.
Plasma (Ionized gases)
Subjects
Electric discharges through gasesElectronesDispersion relations
-
653.
Plasma astrophysics
Subjects
AstrophysicsPlasma (Ionized gases)
-
654.
Plasma diagnostics
Subjects
Physical measurementsPlasma (Ionized gases)
-
655.
Plasma spectroscopy
Subjects
Spectrum analysis
-
656.
Plasmons (Physics)
Subjects
Quasiparticles (Physics)
-
657.
Plasticity
Subjects
Deformations (Mechanics)Elasticity
-
658.
Plurality of worlds
Subjects
CosmologyStarsPlanets
-
659.
Pneumatics
Subjects
Physics
-
660.
Polarity
Subjects
-
661.
Polarization (Electricity)
Subjects
Electricity
-
662.
Polarization (Light)
Subjects
OpticsTheory of wave motion
-
663.
Polarization (Nuclear physics)
Subjects
Particle physicsRadiationNuclear spin
-
664.
Porosity
Subjects
AbsorptionOsmosis
-
665.
Porous materials
Subjects
MaterialsPorosity
-
666.
Potential theory (Physics)
Subjects
Mathematical physicsPotential theory (Mathematics)
-
667.
Power (Mechanics)
Subjects
Mechanical engineeringMechanics
-
668.
Precession
Subjects
Spherical astronomy
-
669.
Pressure
Subjects
Energy
-
670.
Properties of matter
Subjects
Mechanics
-
671.
Protons
Subjects
AtomsCollisions (Nuclear physics)Constitution of matter
-
672.
Pulsars
Subjects
Last updated dated: 21/02/2026