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IEEE Global History Network > Files > File:Restored Edison Dynamo2.JPG
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File:Restored Edison Dynamo2.JPG

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Full resolution‎ (2,112 × 2,816 pixels, file size: 1.3 MB, MIME type: image/jpeg)

Restored Edison 100 kilowatt dynamo now at the ConEd Learning Center. The large handle and yoke in the foreground was for turning the commutator brushes to neutral field when they needed to be changed.

File history

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Date/TimeThumbnailDimensionsUserComment
current13:45, 31 May 2011Thumbnail for version as of 13:45, 31 May 20112,112×2,816 (1.3 MB)Administrator4 (Talk | contribs) (Restored Edison 100 kilowatt dynamo)

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Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.
Camera manufacturer NIKON
Camera model COOLPIX S9
Exposure time 10/303 sec (0.033003300330033)
F Number f/3.5
ISO speed rating 151
Date and time of data generation 22:28, 8 April 2011
Lens focal length 6.4 mm
Horizontal resolution 300 dpi
Vertical resolution 300 dpi
Software used COOLPIX S9V1.0
File change date and time 22:28, 8 April 2011
Y and C positioning 2
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
Scene capture type Portrait
Contrast Normal
Saturation Normal
Sharpness Normal
Subject distance range Unknown
Exposure Program Normal program
Exif version 2.2
Date and time of digitizing 22:28, 8 April 2011
Image compression mode 2
APEX exposure bias 0
Maximum land aperture 3.6
Metering mode Pattern
Light source Unknown
Flash Flash fired, compulsory flash firing, red-eye reduction mode
Color space sRGB
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