File:Antenna trasmittente a telaio - Museo scienza tecnologia Milano 09832.jpg
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Captions
antenna trasmittente a telaio ( ) | ||||||||||||||||||||||||
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Author |
Magni Franco (progettista), Magni Franco (costruttore) |
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Title |
antenna trasmittente a telaio |
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Description |
Italiano: Questa antenna a telaio è costituita da una struttura in legno di forma quadrata con dimensione dei lati di 50 cm circa su cui è avvolto a spira un filo di rame isolato del diametro di 2 mm. Riportiamo come descrive questo elemento circuitale l'ingegner Magni nella sua pubblicazione del 1912 (pag. 16): "in luogo dell'antenna al trasmettitore e ricevitore si posero dei telai di cm 50x50 comprendenti 3 spire ciascuno di grosso filo di rame (2 mm di diametro). Questi telai erano appesi su due funicelle parallele attaccate alle pareti del laboratorio in modo da poterli far scorrere e quindi variare a piacimento le mutue induttanze."
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Date |
between 1911 and 1912 date QS:P571,+1911-00-00T00:00:00Z/8,P1319,+1911-00-00T00:00:00Z/9,P1326,+1912-00-00T00:00:00Z/9 |
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Medium | legno | |||||||||||||||||||||||
Dimensions |
width: 50 cm (19.6 in); depth: 5 cm (1.9 in) dimensions QS:P2049,50U174728 dimensions QS:P5524,5U174728 Weight: 1 kg (2.22 lb) |
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Collection |
institution QS:P195,Q947082 |
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Accession number |
9832 |
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Object history | Eredi Magni | |||||||||||||||||||||||
References |
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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 | 06:41, 21 May 2016 | 935 × 1,024 (252 KB) | Federico Leva (WMIT) (talk | contribs) | {{ICCD TRC | institution = {{institution:Museoscienza}} | permission = {{cc-by-sa-4.0}} | RSR1 = Soresini, Franco | CTP = Industria, manifattura, artigianato | AUT1R = progettista | BIB2G = L'ing. Franco Magni | AUT1N = Magni Franco | CMPD = 2006 |... |
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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.
Image title | OLYMPUS DIGITAL CAMERA |
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Camera manufacturer | OLYMPUS IMAGING CORP. |
Camera model | u-miniD,Stylus V |
Exposure time | 1/30 sec (0.033333333333333) |
F-number | f/3.5 |
ISO speed rating | 320 |
Date and time of data generation | Unknown date |
Lens focal length | 5.95 mm |
Orientation | Normal |
Horizontal resolution | 314 dpi |
Vertical resolution | 314 dpi |
Software used | ACD Systems Digital Imaging |
File change date and time | 14:26, 16 November 2006 |
Y and C positioning | Centered |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | Unknown date |
Meaning of each component |
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APEX exposure bias | 0 |
Maximum land aperture | 3.61 APEX (f/3.49) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash fired, auto mode |
DateTime subseconds | 768 |
Supported Flashpix version | 1 |
Color space | sRGB |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Standard |
Scene control | High gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |