Communication by Printing and Photography

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U.S. Government Printing Office, 1937 - 37 halaman

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Halaman 3 - a printing house was begun at Cambridge, by one Daye, at the charge of Mr. Glover, who died on sea hitherward. The first thing which was printed was the Freeman's Oath ; the next was an Almanack made for New England by Mr. William...
Halaman 36 - ... distributed, the printing processes have been developed through research and invention to a very high degree of efficiency. An example of this is shown in the recent press publication of pictures illustrating the events of the Olympic games in Germany and the civil strife at present raging in Spain, transmitted by radio waves simultaneously with the reports of the events themselves. The potentiality of printing for both good and evil as an instrument of social influence, education, and the determination...
Halaman 32 - ... scholars who want copies of rare manuscripts in distant libraries. Libraries, private and public, will soon contain shelves for film as well as for books. Being small, these strips of film are important where storage space is limited. The bulky records of the US Bureau of the Census are being filmed. It has been estimated that if one page of print can be filmed on one square millimeter of film, to be enlarged through a projector to legibility, then all the books of the Library of Congress would...
Halaman 33 - ... Government for such work. On page 246 of House Document No. 360, Seventy-fifth Congress, first session, entitled "Technological Trends and National Policy," we find that there has not yet been firmly established a completely acceptable substitute for linotype and monotype composition. This report states: "When the problem of the justification of the length of the type line is fully solved, the process of photo-composition may displace the use of metal in printing types to a large extent. This...
Halaman 10 - ... investigations of those industrial producers and machine manufacturers whose interest has been to promote the product, have added much to the possibility of this printing process successfully competing with the letterpress in the near future. The recent introduction of the intaglio method of producing "deep-etch" offset printing plates is doing considerable to improve the quality of printing both of monochrome and color work. It is possible in the near future that the water-fountain and roller-dampener...
Halaman 23 - ... engineering. The constantly increasing use of colored inks in modern printing processes focuses scientific attention upon the subject of color pigments and their development to better serve the purposes of faithful trichromatic reproduction of original paintings or other works of art and colored objects. Great difficulty has been experienced in color printing because no one set of red, yellow, and blue inks available for color process work was suitable for the reproduction of all designs. A blue...
Halaman 33 - ... accomplishing it. Microscopic printing may in the future result as a feature of this trend toward economy of time and space. When the problem of the justification of the length of the type line is fully solved, the process of photocompetition may displace the use of metal in printing types to a large extent. The solution of this problem may not be far off, for a typewriter which involves variable spacing of the letters is already within sight, and the same principle should be applicable to photocomposition.
Halaman 28 - scanned" by a photoelectric cell receiving the impulses from a reflected needle beam of light. Current through the photocell thus varies continuously as the tone of the copy varies. The electrical output of the cell is amplified several million times by means of vacuum tubes and other apparatus similar to that used in an ordinary radio receiving set. This amplified variable current is used to operate an engraving tool which cuts the design directly upon a zinc plate. The operation of the machine...

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