AMPÈRE, ANDRÉ-MARIE. - THE INVENTION OF THE SOLENOID.

Description d'un Apparail électro-dynamique.

(Paris, Crochard, 1824). 8vo. Without wrappers. In 'Annales de Chimie et de Physique', Series 2 - Volume 26, Cahier 4. Pp. 337-448 (entire issue offered). With htitle to volume 26. Amperes' paper: pp. 390-411 and 2 folded engraved plates.

First appearence of the paper in which Ampere describes his invention of the SOLENOID, the electro-magnetic device he used in his early electrodynamical experiments.

"A solenoid is a coil wound into a tightly packed helix. In physics, the term solenoid refers to a long, thin loop of wire, often wrapped around a metallic core, which produces a magnetic field when an electric current is passed through it. Solenoids are important because they can create controlled magnetic fields and can be used as electromagnets. The term solenoid refers specifically to a magnet designed to produce a uniform magnetic field in a volume of space (where some experiment might be carried out)."

Poggendorff I, p. 29. - Ronalds, p. 10.

Order-nr.: 45511