types:
astronomy,
uranology
the branch of physics that studies celestial bodies and the universe as a whole
biophysics
physics as applied to biological problems
cryogenics,
cryogeny
the branch of physics that studies the phenomena that occur at very low temperatures
crystallography
the branch of science that studies the formation and structure of crystals
electronics
the branch of physics that deals with the emission and effects of electrons and with the use of electronic devices
electrostatics
the branch of physics that deals with static electricity
mechanics
the branch of physics concerned with the motion of bodies in a frame of reference
optics
the branch of physics that studies the physical properties of light
plasma physics
the branch of physics concerned with matter in its plasma phase
rheology
the branch of physics that studies the deformation and flow of matter
solid-state physics
the branch of physics that studies the properties of materials in the solid state: electrical conduction in crystals of semiconductors and metals; superconductivity; photoconductivity
statistical mechanics
the branch of physics that makes theoretical predictions about the behavior of macroscopic systems on the basis of statistical laws governing its component particles
thermodynamics
the branch of physics concerned with the conversion of different forms of energy
astrodynamics
the branch of astronomy that studies the motion of natural and artificial bodies in space
astrometry
the branch of astronomy that deals with the measurement of the position and motion of celestial bodies
radio astronomy
the branch of astronomy that detects and studies the radio waves emitted by celestial bodies
avionics
science and technology of electronic systems and devices for aeronautics and astronautics
celestial mechanics
the branch of astronomy concerned with the application of Newton's laws of motion to the motions of heavenly bodies
astrophysics
the branch of astronomy concerned with the physical and chemical properties of celestial bodies
selenology
the branch of astronomy that deals with the moon
catoptrics
branch of optics dealing with formation of images by mirrors
holography
the branch of optics that deals with the use of coherent light from a laser in order to make a hologram that can then be used to create a three-dimensional image
quantum mechanics
the branch of quantum physics that accounts for matter at the atomic level; an extension of statistical mechanics based on quantum theory (especially the Pauli exclusion principle)
quantum field theory
the branch of quantum physics that is concerned with the theory of fields; it was motivated by the question of how an atom radiates light as its electrons jump from excited states
pneumatics
the branch of mechanics that deals with the mechanical properties of gases
statics
the branch of mechanics concerned with forces in equilibrium
dynamics,
kinetics
the branch of mechanics concerned with the forces that cause motions of bodies
kinematics
the branch of mechanics concerned with motion without reference to force or mass
aerodynamics,
aeromechanics
the branch of mechanics that deals with the motion of gases (especially air) and their effects on bodies in the flow
electron optics
the branch of electronics that deals with beams of electrons and their focusing and deflection by magnetic fields
thermionics
the branch of electronics dealing with thermionic phenomena (especially thermionic vacuum tubes)