File:UNREPEATABLE-PATTERN SECURITY; like X-ray but just uses torch shining on underside, light coming through transparent plastics, can provide another way to provide such security.jpg
Jump to navigation
Jump to search
Size of this preview: 481 × 599 pixels. Other resolutions: 193 × 240 pixels | 385 × 480 pixels | 617 × 768 pixels | 822 × 1,024 pixels | 1,645 × 2,048 pixels | 3,245 × 4,040 pixels.
Original file (3,245 × 4,040 pixels, file size: 1.46 MB, MIME type: image/jpeg)
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 16:51, 30 September 2020 | 3,245 × 4,040 (1.46 MB) | MarkJFernandes | Cross-wiki upload from en.wikibooks.org |
File usage
The following 2 pages use this file: