| Electrodynamic rotary motion device |
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| Dating | 1843 - 1844 |  |
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| The instrument is to be considered as the forefather of the modern direct current electric motor. The name of André-Marie Ampère (1775-1836) associated with the instrument is due to the fact that the French scientist studied the mutual action of electrical currents, observing attractions, repulsion and spinning movements. |
| Web page | Electrodynamic rotary motion device |
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| Cataloghi | Nº | Voce |
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| Inv. 2016 | 520 | Electrodynamic rotary motion device Provisional numbering! |
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| Inv. 1925a | 205 | Altro apparecchio per le esperienze di Ampére |
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| Inv. 1870 | 305 | Altro apparecchio per le esperienze di Ampére |
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| Inv. 1838 | 585 | Telaio di noce inverniciato con movimento di rotazione |
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| Section | Electrodynamics |
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| Window | R |
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| Conditions | | | Large | 12.0 cm (4.7 in) |
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| Width | 10.0 cm (3.9 in) |
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| Height | 11.0 cm (4.3 in) |
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| Materials | brass, cupper, wood, mastic, silk |
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| Sources |
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Zantedeschi F., Trattato di fisica elementare, Tipografia Armena S. Lazzaro, Venezia, 1843/45, Vol. 3/II, pag. 49, Tav. I, fig. 36
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| The additional indications which integrate the items of the conservation's state have the following meaning:
(?) = maybe complete; M = maintenance; P = partial; R = restored; D = used for teaching; NC = not checked; X = impossible to verify. |