The Drude model of electrical conduction was proposed in 1900 by Paul Drude to explain the transport properties of electrons in materials (especially metals). The model, which is an application of kinetic theory, assumes that the microscopic behavior of electrons in a solid may be treated classically and looks much like a pinball machine, with a sea of constantly jittering electrons bouncing and re-bouncing off heavier, relatively immobile positive ions. (WikiPedia)

Note: The Drude Electron Gas flows and may be considered parallel to Keely's Interatomic Flow or as a portion of one of the triune polar flows.

See Also

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12.35 - End of The Electron Theory
Conduction
Electron
Heaviside Component
Poynting Vector
Principle of Regeneration