File:Ludwig Prandtl 1904.jpg
![File:Ludwig Prandtl 1904.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Ludwig_Prandtl_1904.jpg/800px-Ludwig_Prandtl_1904.jpg?20110710091353)
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Summary
[edit]DescriptionLudwig Prandtl 1904.jpg |
Deutsch: Ludwig Prandtl (1875-1953) vor dem Wasserversuchskanal in Hannover im Jahr 1904. Das Wasser in der 1,50 Meter langen Wanne wurde mit einem Schaufelrad händisch in Umlauf versetzt. Umlenkschaufeln und Siebe sorgten für hinreichend wirbelfreie Strömung.
English: Ludwig Prandtl (1875-1953) in front of his research water channel in Hannover in 1904. The water was propelled with a hand-operated paddlewheel along the 1.5-meter long duct. A series of blades and meshes streamlined the flow adequately. |
Date | |
Source | Aus dem Nachlass von Prandtl an der Universität Göttingen |
Author |
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Annotations InfoField | This image is annotated: View the annotations at Commons |
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Noter la présence de cet appareil photo. Les photographies du texte original de Prandtl ont été obtenues avec cet appareil photo.
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This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer.
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This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. |
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 09:13, 10 July 2011 | ![]() | 3,472 × 2,470 (865 KB) | Ariadacapo (talk | contribs) | Converted color profile to gray scale (reduced filesize at no cost in quality or information) |
12:43, 7 September 2007 | ![]() | 3,472 × 2,470 (1.01 MB) | D.W. (talk | contribs) | ||
19:44, 29 January 2005 | ![]() | 500 × 420 (29 KB) | Stahlkocher (talk | contribs) | Ludwig Prandtl 1904 mit seinem Strömungskanal, {{PD}}, aus dem Nachlass von Prandtl an der Universität Göttingen Category:peoples |
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Metadata
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Camera manufacturer | FUJIFILM |
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Camera model | FinePixS2Pro |
Exposure time | 1/20 sec (0.05) |
F-number | f/16 |
ISO speed rating | 100 |
Date and time of data generation | 12:31, 14 November 2005 |
Lens focal length | 63 mm |
Orientation | Normal |
Horizontal resolution | 600 dpi |
Vertical resolution | 600 dpi |
Software used | GIMP 2.6.11 |
File change date and time | 11:07, 10 July 2011 |
Y and C positioning | Co-sited |
Exposure Program | Manual |
Exif version | 2.2 |
Date and time of digitizing | 12:31, 14 November 2005 |
Image compression mode | 3.2 |
APEX shutter speed | 4.5 |
APEX aperture | 8 |
APEX brightness | 7.33 |
APEX exposure bias | 0 |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire |
Color space | sRGB |
Focal plane X resolution | 1,861 |
Focal plane Y resolution | 1,861 |
Focal plane resolution unit | 3 |
Sensing method | One-chip color area sensor |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Auto white balance |
Focal length in 35 mm film | 94 mm |
Scene capture type | Standard |
Contrast | Soft |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |