Maxwell's pendulum - Instrument's card

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Maxwell's pendulum

Dating

11 June 1929

The so-called Maxwell's pendulum is a device in which the conversion of potential energy primarily into rotational kinetic energy (related to the considerable inertia of the disk) takes place and the kinetic energy of translational type has a negligible contribution. It is due to the descent and ascent motion of the disc showing a certain period that the word pendulum is used although any oscillatory motion is actually performed.

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Maxwell's pendulum

Cataloghi	Nº	Voce
Inv. 2016	153	Maxwell's pendulum Provisional numbering!
Inv. 1870	926	Apparecchio per la forza d'inerzia

Section

Mechanics

Window

Conditions

Complete

Working D

Intact

Large	34.0 cm (13.4 in)
Width	18.0 cm (7.1 in)
Height	50.0 cm (19.7 in)

Materials

Sources

Bernardi G., Apparecchi di fisica, III Edizione, Ditta Prof. Gaetano Bernardi, Tranto, 1931, pag. 10, fig. 7113
Galileo Officine, Apparecchi per l'insegnamento della fisica, Officine Galileo, Firenze, 1929, pag. 40, fig. 5070
Magrini R., Apparecchi per l'insegnamento della fisica, Officine Galileo, Firenze, 1940, pag. 16, fig. B256
Resti E., Catalogo generale di apparecchi per l'insegnamento della fisica, Ditta Emilio Resti di Franco Brambilla, Pubblicazi, Milano, 1930, pag. 11, fig. 40

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.