Original file (3,648 × 2,886 pixels, file size: 2.05 MB, MIME type: image/jpeg)
Summary
DescriptionTopology joke.jpg |
English: A coffee cup with a handle is topologically equivalent to a donut.
A coffee cup transforming into a donut is represented by ceramic models. |
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Date | |||
Source | http://www.segerman.org/images/topology_joke.jpg | ||
Author | Keenan Crane and Henry Segerman | ||
Permission (Reusing this file) |
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Licensing
- 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.
Items portrayed in this file
depicts
copyright status
copyrighted
copyright license
Creative Commons Attribution-ShareAlike 3.0 Unported
inception
8 May 2015
captured with
Panasonic Lumix DMC-FZ150
exposure time
0.25 second
f-number
8
focal length
5.8 millimetre
ISO speed
100
media type
image/jpeg
instance of
photograph
Wikimedia VRTS ticket number
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 17:18, 11 April 2022 | 3,648 × 2,886 (2.05 MB) | Toploftical | Uploaded a work by Keenan Crane and Henry Segerman from http://www.segerman.org/images/topology_joke.jpg with UploadWizard |
File usage
Global file usage
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- Usage on fa.wikipedia.org
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- Usage on zh-yue.wikipedia.org
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 | Panasonic |
---|---|
Camera model | DMC-FZ150 |
Exposure time | 1/4 sec (0.25) |
F-number | f/8 |
ISO speed rating | 100 |
Date and time of data generation | 13:20, 8 May 2015 |
Lens focal length | 5.8 mm |
Width | 4,000 px |
Height | 3,000 px |
Bits per component |
|
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop CS6 (Macintosh) |
File change date and time | 16:07, 8 May 2015 |
Exposure Program | Aperture priority |
Exif version | 2.3 |
Date and time of digitizing | 13:20, 8 May 2015 |
Meaning of each component |
|
Image compression mode | 4 |
Shutter speed | 2 |
APEX aperture | 6 |
Exposure bias | 0 |
Maximum land aperture | 3.171875 APEX (f/3) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
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 |
Digital zoom ratio | 0 |
Focal length in 35 mm film | 33 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Serial number of camera | O111110170346 |
Date metadata was last modified | 11:07, 8 May 2015 |
Unique ID of original document | C7B3CA7262E8886C423ED0BB70A0632B |
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Ferns27
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Fruits3
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