Delwedd:PositronDiscovery.jpg
Gwedd
Maint y rhagolwg: 608 × 599 picsel. Eglurdebau eraill: 243 × 240 picsel | 487 × 480 picsel | 779 × 768 picsel | 1,039 × 1,024 picsel | 2,408 × 2,374 picsel.
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Dyddiad / Amser | Bawdlun | Hyd a lled | Defnyddiwr | Sylw | |
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cyfredol | 19:12, 6 Mai 2013 | 2,408 × 2,374 (1.91 MB) | Quibik | Combined with a moire- and halftone-free but blurrier version that was also provided in the article. Much more accurate now. | |
18:10, 6 Mai 2013 | 2,500 × 2,500 (1.97 MB) | Quibik | Re-extracted the image from the source article in greater resolution, removed halftone & moiré and adjusted levels. | ||
16:54, 3 Mai 2008 | 848 × 755 (71 KB) | HPaul | {{Information |Description=Cloud chamber photograph of the first positron ever observed |Source=Physical Review, Vol.43, p. 491 |Date=March 15, 1933 |Author=Carl D. Anderson |Permission=obtained from American Physical Society, March 5, 2008 |other_version |
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