. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. Fig. 16. from S, and falls upon a convex lens /j. This pencil brought to a focus, passes at t through a hole in a diaphragm, meets the shutter- disk d., which is turned by a crank, passes through every window that comes, then diverges and, meeting the lens 4, similar to the first, regains its parallelism, is reflected at 45^ from a mirror forming the lid of the box, falls vertically upon another mirror at the .?^ame inclination, and now pas
. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. Fig. 16. from S, and falls upon a convex lens /j. This pencil brought to a focus, passes at t through a hole in a diaphragm, meets the shutter- disk d., which is turned by a crank, passes through every window that comes, then diverges and, meeting the lens 4, similar to the first, regains its parallelism, is reflected at 45^ from a mirror forming the lid of the box, falls vertically upon another mirror at the .?^ame inclination, and now passes to the objective. But in this last part of its course it. 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
Size: 2184px × 1144px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorsmithsonianinstitutio, bookcentury1800, bookdecade1840
