Foucault's pendulum - Instrument's card

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Foucault's pendulum

Dating

1893

By taking advantage of the invariance of the oscillation plane of the pendulum, Foucault demonstrated the rotation of the Earth in 1851. With very simple means this device allows to better understand the spectacular experiment (carried out in the Pantheon with a pendulum of 64 meters in length) performed by that distinguished French physicist.

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Foucault's pendulum

Cataloghi	Nº	Voce
Inv. 2016	139	Foucault's pendulum Provisional numbering!
Inv. 1925a	366	Pendolo di Foucault
Inv. 1870	629	Pendolo di Foucault per detto (apparecchio di rotazione per esperienze sulla forza centrifuga)

Section

Mechanics

Window

Conditions

Complete

Working D

Intact

Large	17.0 cm (6.7 in)
Width	2.0 cm (0.8 in)
Height	37.0 cm (14.6 in)

Materials

Sources

Bernardi G., Apparecchi di fisica, III Edizione, Ditta Prof. Gaetano Bernardi, Tranto, 1931, pag. 12, fig. 7120
Daguin P. A., Cours de physique élémentaire avec les applications a la météorologie , E. Privat, Toulouse, 1863, pag. 56, fig. 56
Galileo Officine, Apparecchi per l'insegnamento della fisica, Officine Galileo, Firenze, 1929, pag. 60, fig. 5121
Resti E., Catalogo generale di apparecchi per l'insegnamento della fisica, Ditta Emilio Resti di Franco Brambilla, Pubblicazi, Milano, 1930, pag. 19, fig. 80
Tarquini A., Apparecchi di fisica, Antonio Tarquini, Roma, 1928, pag. 29, fig. 125

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.

In order to avoid that instruments' cards without the english description text of the device be directly selected, I added a special filter with which only the complete cards are shown in the menu. Anyhow all the partial english instruments' cards (with instrument's dating, dimensions, state of conservation...) can always be seen even if they haven't the english description text. To read this uncomplete cards is sufficient to click, for example, on an instrument's picture or on the word "View" of the table column called "Card" every time they appear in the other pages of this database.