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Title: Sir Charles Wheatstone, 1802 – 1875
Caption: Sir Charles Wheatstone, 1802 – 1875. English scientist and inventor of the Wheatstone bridge, Playfair cipher,also known for his early contributions to Spectroscopy and Telegraphy. From Les Merveilles de la Science, published c.1870
Credit: Album / Universal Images Group / Universal History Archive
Image size: 4067 × 5350 px | 62.3 MB
Print size: 34.4 × 45.3 cm | 1601.2 × 2106.3 in (300 dpi)