File:Iron Pillar of Delhi.jpg
![File:Iron Pillar of Delhi.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/a/af/Iron_Pillar_of_Delhi.jpg/800px-Iron_Pillar_of_Delhi.jpg?20170308195545)
Original file (4,608 × 3,456 pixels, file size: 5.79 MB, MIME type: image/jpeg)
Captions
Captions
Summary
[edit]DescriptionIron Pillar of Delhi.jpg |
English: The Iron Pillar located in Delhi, India, is a 7 m (23 ft) column in the Qutab complex, notable for the rust-resistant composition of the metals used in its construction.
The pillar has attracted the attention of archaeologists and materials scientists because of its high resistance to corrosion, and has been called a "testimony to the high level of skill achieved by the ancient Indian iron smiths in the extraction and processing of iron." The corrosion resistance results from an even layer of crystalline iron hydrogen phosphate hydrate forming on the high phosphorus content iron, which serves to protect it from the effects of the local Delhi climate. The pillar weighs over 6,000 kg (13,000 lb), and is thought to have originally been erected in what is now Udayagiri by one of the Gupta monarchs in approximately 402 CE, though the precise date and location are a matter of dispute. |
Date | |
Source | Own work |
Author | Rounik Ghosh |
Licensing
[edit]![w:en:Creative Commons](https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/CC_some_rights_reserved.svg/90px-CC_some_rights_reserved.svg.png)
![attribution](https://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Cc-by_new_white.svg/24px-Cc-by_new_white.svg.png)
![share alike](https://upload.wikimedia.org/wikipedia/commons/thumb/d/df/Cc-sa_white.svg/24px-Cc-sa_white.svg.png)
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 19:55, 8 March 2017 | ![]() | 4,608 × 3,456 (5.79 MB) | Rounikk97 (talk | contribs) | User created page with UploadWizard |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
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.
Camera manufacturer | SONY |
---|---|
Camera model | DSC-W710 |
Exposure time | 1/400 sec (0.0025) |
F-number | f/3.2 |
ISO speed rating | 100 |
Date and time of data generation | 00:19, 31 December 2013 |
Lens focal length | 5 mm |
Orientation | Normal |
Horizontal resolution | 350 dpi |
Vertical resolution | 350 dpi |
File change date and time | 00:19, 31 December 2013 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.3 |
Date and time of digitizing | 00:19, 31 December 2013 |
Meaning of each component |
|
Image compression mode | 3 |
APEX exposure bias | 0 |
Maximum land aperture | 3.4 APEX (f/3.25) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, auto mode |
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 | Landscape |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |