Dynamics

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

Physics and engineering

• 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)
  • 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
    • Computational fluid dynamics, a way of studying fluid dynamics using numerical methods
  • 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, yet also the stock market 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

• Group dynamics, the study of social group processes especially
• 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 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
• Dynamic microphone, a type of microphone

See also

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