Physics and Astronomy Classification Scheme 1999

• 00. GENERAL ( 0 Dok. )

• 10. THE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS (for cosmic rays, see 96.40; for experimental methods and instrumentation for elementary-particle physics, see 29) ( 0 Dok. )

• 20. NUCLEAR PHYSICS ( 0 Dok. )

• 30. ATOMIC AND MOLECULAR PHYSICS (for physical chemistry, see 82) ( 0 Dok. )

• 40. ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS ( 0 Dok. )

• 50. PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES (for flow properties of gases, see 47; for atomic and molecular properties, see 30) ( 0 Dok. )

• 60. CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES ( 0 Dok. )

• 70. CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES ( 0 Dok. )

• 80. INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY ( 0 Dok. )

• 90. GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS ( 0 Dok. )