Paradoxal disc - Instrument's card

	Virtual Museum - Traversi Museum
	Instrument's card

Instrument Nº - Query criteria NOTICE

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Paradoxal disc

Dating

April 1881

Web page

Paradoxal disc

Cataloghi	Nº	Voce
Inv. 2016	130	Paradoxal disc Provisional numbering!
Inv. 1925b	216	Fenomeno paradosso - Causa richiesta scarico: mancante
Inv. 1870	481	Fenomeno paradosso

Section

Mechanics

Window

Conditions

Complete(?)

Working D

Intact

Diameter	23.0 cm (9.1 in)
Height	6.0 cm (2.4 in)

Materials

lead, wood

Sources

Felice M., Elementi di fisica, Ditta G. B. Paravia e Comp., Torino, 1887/90, Vol. 1, pag. 74, fig. 38
Magrini R., Apparecchi per l'insegnamento della fisica, Officine Galileo, Firenze, 1940, pag. 15, fig. B253
s'Gravesande G. J., Physices elementa mathematica, experimentis confirmata, J. A. Langerak, J. et H. Verbeek, Leida, 1742, Vol. 1, pag. 47, Tav. V, fig. 5
Traversi A. M., Elementi di fisica generale, Antonio Curti, Venezia, 1822, Vol. 5, pag. 94, Tav. II, 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.