Dynamics

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

Physics and engineering

• Dynamics (mechanics), the time evolution of physical processes
  • Aerodynamics, the study of gases in motion
  • Analytical dynamics refers to the motion of bodies as induced by external forces
  • Anomalous dynamics is the stochastic motion of objects with mean square 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).
  • Brownian dynamics, is 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 square displacement, and t is 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
    • Computational fluid dynamics, a way of studying fluid dynamics using numerical methods
  • Fractional dynamics studyies 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 square displacement of the process, and t is time the process is seen. (Normal dynamics and Brownian dynamics are very similar, where the term that is used depends on the field).
  • Langevin dynamics, a mathematical model for stochastic dynamics; used in modeling molecules, yet also the stock market, and other things. The most important feature of Langevin dynamics is having a Gaussian random noise.
  • Quantum chromodynamics, a theory of the strong interaction (color force)
  • Quantum electrodynamics, description of how matter and light interact
  • Relativistic dynamics, a combination of relativistic and quantum concepts
  • Single file dynamics, also termed, file dynamics, is the diffusion of particles in a channel
  • Stellar dynamics, in astrophysics, 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

• Group dynamics, the study of social group processes
• Power dynamics, the dynamics of power, used in sociology
• Psychodynamics, the study of the underlying psychological forces driving human behaviour
• Spiral Dynamics, a social development theory
• Social dynamics, the ability of a society to react to changes

Computer science and mathematics

• Dynamic data structure, a data structure where the data elements may change
• Dynamical system, a concept describing a point's time dependency
  • Symbolic dynamics, a method to model dynamical systems
• 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

Companies

• Arrow Dynamics, roller coaster designer
• Boston Dynamics, robot designer
• Crystal Dynamics, video game developer
• General Dynamics, defence contractor

Other

• Dynamics (music), the softness or loudness of a sound or note
• Force Dynamics, a semantic concept about how entities interact with reference to force
• Microsoft Dynamics, a line of business software
• Neural oscillation in the field of neurodynamics, a rhythmic pattern in the brain
• Population dynamics, in life sciences, the changes in the composition of a population

See also

• All pages beginning with "dynamic"
• All pages with titles containing "dynamic"
• Power (disambiguation)
• Kinetics (disambiguation)
• Dynamic Host Configuration Protocol

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