File:EastHanSeismograph.JPG
EastHanSeismograph.JPG (480 × 552 pixels, file size: 232 KB, MIME type: image/jpeg)
This is a file from the Wikimedia Commons. The description on its description page there is shown below.
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Summary
DescriptionEastHanSeismograph.JPG |
English: A replica of an ancient Chinese Seismograph from Eastern Han Dynasty (25-220 CE). This picture is taken from an exhibition at Chabot Space & Science Center in Oakland, California. The plaque of the exhibit said: Detecting a Quake In 132 CE, after several earthquakes in China, astronomer Zhang Heng invented this instrument to warn people of the next one. When the ground shook, it moved a pendulum inside the jug. The pendulum pushed a lever that opened one dragon's mouth. A ball rolled out and into the toad's mouth below, sounding an alarm. The open dragon mouth pointed in the direction of the earthquake, notifying the Emperor. |
Date | |
Source | en:File:EastHanSeismograph.JPG |
Author | en:user: Kowloonese |
Licensing
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. | ||
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This licensing tag was added to this file as part of the GFDL licensing update.http://creativecommons.org/licenses/by-sa/3.0/CC BY-SA 3.0Creative Commons Attribution-Share Alike 3.0truetrue |
Original upload log
The original description page was here. All following user names refer to en.wikipedia.
Upload date | User | Dimensions | Comment
04:08, 12 July 2004 |480 × 585 (87 KB) | Kowloonese (talk | contribs) | Ancient Chinese Siesmograph from Eastern Han Dynasty
Items portrayed in this file
depicts
July 2004
0.03333333333333333333 second
2.8
8 millimetre
320
image/jpeg
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Dimensions | User | Comment | |
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current | 06:10, 10 January 2014 | 480 × 552 (232 KB) | Soerfm | Levels, crop |
File usage
The following 5 pages use this file:
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 | SONY |
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Camera model | CYBERSHOT |
Exposure time | 1/30 sec (0.033333333333333) |
F Number | f/2.8 |
ISO speed rating | 320 |
Date and time of data generation | 11:40, 10 July 2004 |
Lens focal length | 8 mm |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop CS2 Windows |
File change date and time | 14:09, 10 January 2014 |
Y and C positioning | Co-sited |
Pair of black and white reference values |
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Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 11:40, 10 July 2004 |
Meaning of each component |
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APEX exposure bias | 0 |
Maximum land aperture | 3 APEX (f/2.83) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire |
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 |
Scene capture type | Standard |
Supported Flashpix version | 0,100 |
Image width | 480 px |
Image height | 552 px |
Date metadata was last modified | 15:09, 10 January 2014 |
IIM version | 2 |
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