File:Coppia di espansioni polari forate - Museo scienza tecnologia Milano 11849 01.jpg
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Captions
coppia di espansioni polari forate - Modello Leybold 560 31. ( ) | ||||||||||||||||||||||||
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Author |
E. Leybold's Nachfolger AG (costruttore) |
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Title |
coppia di espansioni polari forate - Modello Leybold 560 31. |
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Description |
Italiano: Le espansioni polari in ferro dolce hanno forma vagamente parallelelpipeda e presentano un foro longitudinale Ciascuna ha un'estremità conica ed una piatta, per generare rispettivamente campi non omogenei e omogenei Le staffe a morsetto sono costituite da tre lamine in ferro disposte ad U con al centro una vite regolabile.
Questi dispositivi permettono il montaggio di un elettromagnete insieme ad elementi del trasformatore scomponibile per esperienze didattiche. Le staffe servivano per il fissaggio delle espansioni polari sui bracci del nucleo ad U Alcune delle esperienze che si rendevano possibili erano: con pendolo di Waltenhofen, con la ruota di Barlow, per dimostrare diamagnetismo e paramagnetismo, per la deviazione di raggi beta in un campo magnetico, per costruire un contatore per corrente alternata (unitamente ad appositi dischi girevoli) ecc.
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Date |
between 1955 and 1967 date QS:P571,+1950-00-00T00:00:00Z/7,P1319,+1955-00-00T00:00:00Z/9,P1326,+1967-00-00T00:00:00Z/9 |
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Medium | materiale plastico | |||||||||||||||||||||||
Dimensions |
height: 4 cm (1.5 in); width: 4 cm (1.5 in) dimensions QS:P2048,4U174728 dimensions QS:P2049,4U174728 |
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Collection |
institution QS:P195,Q947082 |
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Accession number |
11849 |
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References | ||||||||||||||||||||||||
Source/Photographer | Catalogo collezioni (in it). Museoscienza.org. Museo nazionale della scienza e della tecnologia Leonardo da Vinci, Milano. | |||||||||||||||||||||||
Permission (Reusing this file) |
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
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File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 11:57, 21 May 2016 | 1,280 × 960 (85 KB) | Federico Leva (WMIT) (talk | contribs) | {{ICCD TRC | institution = {{institution:Museoscienza}} | permission = {{cc-by-sa-4.0}} | RSR1 = Brenni, Paolo | CTP = Fisica | AUT1R = costruttore | MIS1T = ca. | AUT1N = E. Leybold's Nachfolger AG | CMPD = 2008 | INV1N = 11849 | CTC = elettromagn... |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | NIKON |
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Camera model | COOLPIX L1 |
Exposure time | 1/32 sec (0.03125) |
F-number | f/2.9 |
ISO speed rating | 50 |
Date and time of data generation | 12:39, 18 June 2008 |
Lens focal length | 6.3 mm |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop CS2 Windows |
File change date and time | 11:42, 2 July 2008 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 12:39, 18 June 2008 |
Meaning of each component |
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Image compression mode | 2 |
APEX exposure bias | 0 |
Maximum land aperture | 3 APEX (f/2.83) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash fired, compulsory flash firing |
Supported Flashpix version | 1 |
Color space | sRGB |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 0 |
Focal length in 35 mm film | 38 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Supported Flashpix version | 1 |
Image width | 1,280 px |
Image height | 960 px |
Date metadata was last modified | 13:42, 2 July 2008 |
IIM version | 2 |