Plasma Dynamics

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Development Notes

Experimental results obtained in 1879 when conducting electricity through rarefied gases in a vacuum tube and modulated by a magnetic field. From left to right, the tube is filled with nitrogen, oxygen, carbon dioxide and tin(IV) chloride. The positive electrode is on top. The tube with nitrogen produced a spiral, the one with carbon dioxide a set of nine stacked toroids embracing a Y-shaped column. (c) John Rand Capron.

Birkeland Currents

Dave Brown – Plasma Experiments