Saint Victor in Paris in Département de Paris, Île-de-France, France — Western Europe
Ampère découvre l’électrodynamique
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Ampère Discovers Electrodynamics
Photographed by Andrew Ruppenstein, April 8, 2025
1. Ampère découvre l’électrodynamique / Ampère Discovers Electrodynamics Marker
Né près de Lyon en 1775, André-Marie Ampère est professeur d'analyse à l'Ecole polytechnique depuis 1809 lorsqu'il assiste à l'expérience d'Oersted sur la déviation de l'aiguille aimantée par un courant électrique : il en construit la théorie en quelques jours et pose ainsi les bases de l'électrodynamique. Dès 1821, il émet l'hypothèse que les molécules des corps sont l'objet de "courants particulaires" dirigeables par l'aimantation. Il invente aussi le galvanomètre et le premier télégraphe électrique. Membre de l'Académie des Sciences en 1814, il est élu à la chaire de physique du Collège de France en 1824. Entre 1818 et sa mort, en 1836, Ampère habite cette maison, qui lui sert également de laboratoire.
Ampère Discovers Electrodynamics
Born near Lyon in 1775, André-Marie Ampère was a professor of analysis at the École Polytechnique from 1809 when he witnessed Oersted's experiment on the deflection of a magnetic needle by an electric current. He developed the theory in a few days, thus laying the foundations of electrodynamics. As early as 1821, he hypothesized that the molecules of matter are subject to "particle currents" that can be directed by magnetization. He also invented the galvanometer and the first electric telegraph. A member of the French Academy of Sciences in 1814, he was elected to the chair of physics at the Collège de France in 1824. Between 1818 and his death in 1836, Ampère lived in this house, which also served as his laboratory.
Topics and series. This historical marker is listed in this topic list: Science & Medicine. In addition, it is included in the Histoire de Paris series list. A significant historical year for this entry is 1775.
Location. 48° 50.797′ N, 2° 21.109′ E. Marker is in Paris, Île-de-France, in
this page online
Regionally, it is in the North Atlantic Region, Europe, the European Union, Atlantic Europe, the Schengen Area, Western Europe, a coastal Mediterranean country, and the Western World. Historically, it finds itself in what was once a French colony and also the Roman Empire.
Other nearby markers. At least 8 other markers are within walking distance of this marker: André-Marie Ampère (a few steps from this marker); Les premieres paratonnerres / The First Lightning Rods (a few steps from this marker); Collège des Ecossais / Scots College (about 120 meters away, measured in a direct line); La Porte Saint-Victor / Saint Victor Gate (about 120 meters away); Louis Braille (1809-1852) (about 120 meters away); Enceinte de Philippe Auguste / The Wall of Philip II Augustus (about 150 meters away); Valery Larbaud (1881-1957) (about 150 meters away); Collège du Cardinal Lemoine (about
Photographed by Andrew Ruppenstein, April 8, 2025
2. Ampère Discovers Electrodynamics Marker - wide view
The marker is visible here at the corner of the building, by the entrance to the metro station.
Also see . . . André-Marie Ampère (Wikipedia). Overview:
André-Marie Ampère (20 January 1775 – 10 June 1836) was a French physicist and mathematician who was one of the founders of the science of classical electromagnetism, which he referred to as electrodynamics. He is also the inventor of numerous applications, such as the solenoid (a term coined by him) and the electrical telegraph. As an autodidact, Ampère was a member of the French Academy of Sciences and professor at the École polytechnique and the Collège de France.(Submitted on January 3, 2026.)
The SI unit of electric current, the ampere (A), is named after him…
Photographed by Andrew Ruppenstein, June 26, 2023
3. Ampère Discovers Electrodynamics Marker - wider view
The marker is (almost) visible here at the left corner of the building.
Credits. This page was last revised on January 3, 2026. It was originally submitted on January 3, 2026, by Andrew Ruppenstein of Lamorinda, California. This page has been viewed 31 times since then. Photos: 1, 2. submitted on January 3, 2026, by Andrew Ruppenstein of Lamorinda, California. 3. submitted on July 15, 2023, by Andrew Ruppenstein of Lamorinda, California.
