. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. 270 ANNUAL EEPORT SMITHSONIAN INSTITUTION, 1910. The form of apparatus I have employed for this purpose is seen diagramatically in the next lantern slide (fig. 7). EE is the magnet which is actuated by the relay R. It then attracts an arma- ture MN, which moves toward the magnet poles and brings a resili- ent hammer H, fitted with a platinum contact p, against the coherer. The coherer AB is also fitted with a collar F and contact pin, so th
. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. 270 ANNUAL EEPORT SMITHSONIAN INSTITUTION, 1910. The form of apparatus I have employed for this purpose is seen diagramatically in the next lantern slide (fig. 7). EE is the magnet which is actuated by the relay R. It then attracts an arma- ture MN, which moves toward the magnet poles and brings a resili- ent hammer H, fitted with a platinum contact p, against the coherer. The coherer AB is also fitted with a collar F and contact pin, so that in the act of striking the coherer the hammer closes a local circuit, and so causes a black mark to appear on the chemical paper. Suc- cessive distinct marks can be obtained in second in this way, which is considerably more rapid, I believe, than a decoherer was given credit for. There is not sufficient time to show an actual transmission by wire- less, and I should like to make it clear that only sketches of the simplest character are at present being transmitted; but, as you will see from the result thrown on the screen—a simple portrait of His Y 0- K fM{^/m^^/im7\ *• i^M'wr wzsm- M N. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Smithsonian Institution. Board of Regents; United States National Museum. Report of the U. S. National Museum; Smithsonian Institution. Report of the Secretary. Washington : Smithsonian Institution
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