File:Becquerel - Exposé élémentaire de la théorie d’Einstein et de sa généralisation (page 16 crop).jpg
Jump to navigation
Jump to search
Size of this preview: 800 × 369 pixels. Other resolutions: 320 × 147 pixels | 640 × 295 pixels | 1,181 × 544 pixels.
Original file (1,181 × 544 pixels, file size: 22 KB, MIME type: image/jpeg)