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English: Vacuum pump and bell jar for vacuum experiments, used in science education during the early 20th century, on display in the Schulhistorische Sammlung (School Historical Museum), Bremerhaven, Germany.
|Date||25 August 2008|
|Source||own work, Schulhistorische Sammlung Bremerhaven|
|Author||Hannes Grobe (talk)|
|This file is licensed under the Creative Commons Attribution 3.0 Unported license.|
Creative Commons Attribution 3.0 Unported
|Camera model||DIGILUX 2|
|Orientation of image||1|
|Image resolution in width direction||72|
|Image resolution in height direction||72|
|Unit of X and Y resolution||2|
|Exposure time||10/16 sec (0.625)|
|F number||f / 7.1|
|ISO speed rating||100|
|Compressed bits per pixel||8|
|Lens focal length||16.3 mm|
|Date and time original image was generated||2008:08:21 15:39:01|
|Date and time image was made digital data||2008:08:21 15:39:01|
|Meaning of each component|
|Maximum lens aperture||2|
|Supported Flashpix version||0100|
|Color space information||1|
|Exif image width||2180|
|Exif image length||1822|