The Lestrade viewer and cards are very similar to the Bruguière. These cards are moving up and down in the viewer.Īn important other producer in France is LESTRADE. In France the firm Bruguière already made stereophotographs on black and white positive film and a simple cardbox viewer.Īfter the second world war they produce the BRUGUIERE STEREOCLIC viewer with the Bruguière stereocards. The Holmes viewer uses magnifying lenses to fuse the parallel side by side mounted stereo pairs and it holds the stereocard To shade the eyes and an adjustable card holder. In 1859 he invented a simple stereoscope, that was later refined by Joseph Bates, who added a hood (1858), 'The Professor of the Breakfast-Table' (1860), 'The Poet of the Breakfast-Table' (1872) and 'Over the Teacups' (1891), written inĬonversational style and displaying Holmes's learning and wit. ![]() ![]() In 1857, he contributed his 'Breakfast-Table papers' to The Atlantic Monthly and subsequently published 'The Autocrat of the Breakfast-Table' He wrote much poetry and comic verse during his early school years and Holmes achieved his greatest fame, however, as a humorist and poet. He was later made dean of the Harvard Medical School, a post he held until 1882. Professor of anatomy and physiology at Harvard. He practiced medicine for 10 years, taught anatomy for two years at Dartmouth College, and in 1847 became Following studies at Harvard and in Paris, he received hisĭegree from Harvard in 1836. Oliver Wendell Holmes (1809-1904) read law at Harvard University before deciding on a medical career. The most common type of hand-held stereoscope with an open skeletal frame is the Holmes stereoscope. In 1849 Sir David Brewster described a binocular camera, and the first stereoscopic photographs began to be produced. Wheatstone's actual stereoscope is preserved at the Science Museum in London. This technique proved that stereo perception was a result of binocular vision. So-called reflecting mirror stereoscope to view them. Since 1832 Wheatstone was experimenting with simple stereoscopic drawings (geometric 3D-drawings) and in 1838 he made a Usually delivered Charles's lectures for him at the Royal Institution. Wheatstone had a lifelong friendship with the scientist Michael Faraday (1791-1867), and due to Wheatstone's intense shyness, Faraday He suffered through life from an almost morbid timidity in presence of an audience. Though nominally professor of natural philosophy at King's College, London, he seldom lectured after 1840, and indeed was an indifferent He also invented two new devices to measure and regulate electrical resistance and current: the Rheostat and the Wheatstone bridge. On various improvements to the concertina and related devices. There was no period in his life when he concentrated on just one particular subject, and throughout his life he constantly returned to work He was working variously on typewriters, electromagnetic clocks, pitch measuring devices, and of course, the concertina and its prototypesĪs well as the electric telegraph which became his major life's work. He was responsible for the introduction of the electrical telegraph where his scientific understanding enabled him to turn it intoĬharles Wheatstone was interested in musical instruments and their acoustics throughout his life. Musical instrument firm where studying the workings of musical instruments gave him a taste for physics. Charles Wheatstone was one of the leading electrical engineers of the mid-nineteenth century, and began his career in the family
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