Hierarchy classification:

1. top of the aat hierarchies
2. Activities Facet
3. Disciplines (hierarchy name)
4. disciplines (concept)
5. [science and related disciplines]
6. science (modern discipline)
7. natural sciences
8. physical sciences

Narrower term/s

• geophysics[+]
  • seismology
• applied physics
• acoustics[+]
  • phonetics [NP]
• particle physics
• hydraulics
• mathematical physics
• mechanics (physics)[+]
  • rheology
  • fracture mechanics
  • fluid mechanics [+]
    • computational fluid dynamics
• nuclear physics
• optics[+]
  • fiber optics
  • x-ray optics [+]
    • polycapillary optics
• radiology [NP]
• electronics (physics)[+]
  • microelectronics
  • electronic engineering [NP]
• building physics
• photonics

Anotations

Scope note:

Science that studies the laws determining the structure of the observable universe and the interaction between its fundamental constituents, such as matter and energy, with the broad goal of explaining natural phenomena.