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Dynamics (from Greek δυναμικός dynamikos "powerful", from δύναμις dynamis "power") may refer to:

Physics and engineering[edit]

  • Dynamics (mechanics),
    • Aerodynamics, the study of gases in motion
    • Analytical dynamics, the motion of bodies as induced by external forces
    • Anomalous dynamics (Random walk#Anomalous diffusion), the stochastic motion of objects with mean squared displacement (MSD) that deviates from the relation for normal dynamics, MSD~t, where t is the time the process is seen; anomalous dynamics are either faster than normal dynamics (MSD>t) or slower (MSD<t)
    • Astrodynamics, also known as Orbital mechanics for both near earth and planetary motion (also called Celestial mechanics when used in that sense).
    • Brownian dynamics, the occurrence of Langevin dynamics in the motion of particles in solution (e.g. a grain in water, as was first seen by Brown); its famous property is: MSD~t, where MSD is the mean squared displacement, and t is the time the process is seen
    • File dynamics, stochastic motion of particles in a channel
    • Flight dynamics, the science of aircraft and spacecraft design
    • Fluid dynamics or hydrodynamics, the study of fluid flow
    • Fractional dynamics, studies the dynamics with integrations and differentiations of fractional orders (in physics, economics, and related fields)
    • Molecular dynamics, the study of motion on the molecular level
    • Normal dynamics, is a stochastic motion having a Gaussian probability density function in position with variance MSD that follows, MSD~t, where MSD is the mean squared displacement of the process, and t is the time the process is seen (normal dynamics and Brownian dynamics are very similar; the term used depends on the field)
    • Langevin dynamics, a mathematical model for stochastic dynamics; used in modeling molecules, stock market, neuronal membrane potentials and other systems
    • Quantum chromodynamics, a theory of the strong interaction (color force)
    • Quantum electrodynamics, a description of how matter and light interact
    • Relativistic dynamics, a combination of relativistic and quantum concepts
    • Single file dynamics (also termed file dynamics), the diffusion of particles in a channel
    • Stellar dynamics, a description of the collective motion of stars
    • System dynamics, the study of the behavior of complex systems
    • Thermodynamics, the study of the relationships between heat and mechanical energy

Sociology and psychology[edit]

Computer science and mathematics[edit]

  • Dynamic data structure, a structure where the data elements may change
  • Dynamical system, a concept describing a point's time dependency
  • Dynamic programming, a method of solving complex problems by breaking them down into simpler steps
  • Dynamic program analysis, a set of methods for analyzing computer software
  • Dynamic HTML, an umbrella term for a collection of technologies used together to create interactive and animated web sites
  • Dynamic web page, a web page with web content that varies based on parameters provided by a user or a computer program



See also[edit]