File:Demonstration model of Babbage’s Difference Engine No 1, 19th century. (9660573663).jpg
Size of this preview: 627 × 600 pixels. Other resolutions: 251 × 240 pixels | 502 × 480 pixels | 878 × 840 pixels.
Original file (878 × 840 pixels, file size: 463 KB, MIME type: image/jpeg)
Captions
Captions
Add a one-line explanation of what this file represents
Summary edit
.jpg&action=edit§ion=1){kind=link}
| Description | This model of Difference Engine No 1 was built by Henry Prevost Babbage (1824-1918) from the designs of his father, British computing pioneer Charles Babbage (1791-1871). This was one of approximately six demonstration models of the calculating mechanism of Engine No 1 built by Henry after his father's death, using unused parts from the original. Charles Babbage conceived the idea of building an automatic calculating machine which would eliminate the inaccuracy that occurred when compiling mathematical tables by hand. Never built during Charles Babbage's lifetime, it was a decimal digital machine - the value of a number being represented by the positions of toothed wheels marked with decimal numbers. |
| Date | |
| Source |
Demonstration model of Babbage’s Difference Engine No 1, 19th century.
|
| Author | Science Museum London / Science and Society Picture Library |
Licensing edit
.jpg&action=edit§ion=2){kind=link}
This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
- 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.
|
This image, originally posted to Flickr, was reviewed on 3 September 2013 by the administrator or reviewer File Upload Bot (Magnus Manske), who confirmed that it was available on Flickr under the stated license on that date. |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 06:16, 8 September 2013 | | 878 × 840 (463 KB) | DrJunge (talk | contribs) | tilt further reduced |
| 09:31, 7 September 2013 |  | 878 × 840 (463 KB) | DrJunge (talk | contribs) | white balance adjusted, deslanted, denoised, cropped. | |
| 10:25, 3 September 2013 |  | 1,250 × 982 (197 KB) | File Upload Bot (Magnus Manske) (talk | contribs) | Transferred from Flickr by User:Mrjohncummings |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
File usage on other wikis
The following other wikis use this file:
- Usage on de.wikipedia.org
- Usage on en.wikipedia.org
.jpg&oldid=758337352){kind=link}