. Bulletin - United States National Museum. Science. !30 Figure 21. Ki \ i rsibi i pendulum apparatus of Defforges, as constructed by Brunncr, Paris, about 1887. The clock and telescope used to observe coincidences are no1 shown. The telescope shown is pan ol an interferometei used to measure rlexure of the support. One mirror of the interferometer is attached to the pendulum support; the other to the separate masonry pillar at the left. BULLETIN 240: CONTRIBUTIONS FROM THE MUSEUM OF HISTORY AND TECHNOLOGY. Please note that these images are extracted from scanned page images that may have been
. Bulletin - United States National Museum. Science. !30 Figure 21. Ki \ i rsibi i pendulum apparatus of Defforges, as constructed by Brunncr, Paris, about 1887. The clock and telescope used to observe coincidences are no1 shown. The telescope shown is pan ol an interferometei used to measure rlexure of the support. One mirror of the interferometer is attached to the pendulum support; the other to the separate masonry pillar at the left. BULLETIN 240: CONTRIBUTIONS FROM THE MUSEUM OF HISTORY AND TECHNOLOGY. 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 United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
