from the GNU version of the Collaborative International Dictionary of English
- n. The phenomena of electricity in motion.
- n. The branch of science which treats of the properties of electric currents; dynamical electricity.
from The Century Dictionary and Cyclopedia
- n. That part of the science of electricity which treats of the mutual action of electric currents and of currents and magnets.
Sorry, no etymologies found.
This method is physically based on the well-known principles of the classical physics (mechanics, thermodynamics and electro-dynamics).
The special relativity theory which was simply a systematic extension of the electro-dynamics of Maxwell and Lorentz, had consequences which reached beyond itself.
Beginning with Arago's and Faraday's discoveries he developed by ingenious experiments our knowledge of electrostatics, electro-dynamics, induced currents, and the like, but his greatest achievements however were in the field of electro-physiology, with frogs, torpedoes, and the like.
Meantime by extending to dielectric bodies the formulæ that Poisson, Ampère, and Neumann had established for magnets and conductive bodies, James Clerk-Maxwell (1831-79) was enabled to create a new branch of electro-dynamics, and thereby bring to light the long-sought link connecting the sciences of electricity and optics.
Ampère's memoir gave the initial impetus to researches which have greatly broadened the field of electro-dynamics and electro-magnetism.
The mathematical expression for electro-dynamic action led, in the mind of Gauss, to the conviction that a theory of the propagation of electric action would in time be found to be the very keystone of electro-dynamics.
Navigation is not the final cause of astronomy, nor telegraphy of electro-dynamics, nor dyeworks of chemistry.
Ampère first received the news of Oersted's experiment on September 11, 1820, and on the 18th of the same month he announced to the Academy the fundamental principles of the science of electro-dynamics -- seven days of rapid progress perhaps unequalled in the history of science.
Navigation is not the final cause of astronomy, nor telegraphy of electro-dynamics, nor dye-works of chemistry.
Bunnies Made of Cheese dialogue in which I talk to Emmy about quantum electro-dynamics bears a striking resemblance to Arthur Conan Doyle (I'm not sure which of us is Holmes).
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