Vision By Radio Radio Photographs Radio Photograms
Vision By Radio Radio Photographs Radio Photograms
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In our eReader you can find the full English version of the book. Read Vision By Radio Radio Photographs Radio Photograms Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Vision By Radio Radio Photographs Radio Photograms
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Amstutz, of Valparaiso, Indiana, U. S. A. , in the author's opinion, stands out as the most con spicuous, not only for fine work, but for the cleverness of its accomplishment, the first successful picture being sent in May, 1891, over a 25-mile wire in eight minutes.
"Mr. Amstutz was not the first to send pictures over wire, but he was the first to send pictures with halftones, the others were simply line drawings. In this first method Mr. Amstutz used a relief photo graph. The amount of relief... was in direct propor tion to the amount of light which had acted on the sensitive gelatine, resulting in an irregular surface, representing in elevation all the variations of light and shade in a regular picture.
"The picture received is actually a phonographic spiral around the receiving drum carrying the celluloid sheet. When finished it is removed from the cylinder and flattened out and a stereotype or electrotype made from it for relief printing; or the engraved celluloid sheet can be inked and printed immediately on the intaglio press.
What to read after Vision By Radio Radio Photographs Radio Photograms?
You can find similar books in the "Read Also" column, or choose other free books by C Francis Charles Francis Jenkins to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Amstutz, of Valparaiso, Indiana, U. S. A. , in the author's opinion, stands out as the most con spicuous, not only for fine work, but for the cleverness of its accomplishment, the first successful picture being sent in May, 1891, over a 25-mile wire in eight minutes.
"Mr. Amstutz was not the first to send pictures over wire, but he was the first to send pictures with halftones, the others were simply line drawings. In this first method Mr. Amstutz used a relief photo graph. The amount of relief... was in direct propor tion to the amount of light which had acted on the sensitive gelatine, resulting in an irregular surface, representing in elevation all the variations of light and shade in a regular picture.
"The picture received is actually a phonographic spiral around the receiving drum carrying the celluloid sheet. When finished it is removed from the cylinder and flattened out and a stereotype or electrotype made from it for relief printing; or the engraved celluloid sheet can be inked and printed immediately on the intaglio press.
What to read after Vision By Radio Radio Photographs Radio Photograms?
You can find similar books in the "Read Also" column, or choose other free books by C Francis Charles Francis Jenkins to read onlineMoreLess
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