. Bulletin - United States National Museum. Science. a ,> 9 0 :;n Figure 34.—An exhibit of gravity apparatus at the Smithsonian Institution. Suspended on the wall, from left to right, are the invariable pendulums of Mendenhall ('^-second), Peirce (1873-1874), and IVirce (1881-1882); the double pendulum of Edward Kiibel (see fig. 15, p. 319), and the reversible pendulum of Peirce. On the display counter, from left to right, are the vacuum chamber, telescope and flash apparatus for the Mendenhall i-sc, unci apparatus. Shown below these are the four pendulums used with the Menden- hall apparat
. Bulletin - United States National Museum. Science. a ,> 9 0 :;n Figure 34.—An exhibit of gravity apparatus at the Smithsonian Institution. Suspended on the wall, from left to right, are the invariable pendulums of Mendenhall ('^-second), Peirce (1873-1874), and IVirce (1881-1882); the double pendulum of Edward Kiibel (see fig. 15, p. 319), and the reversible pendulum of Peirce. On the display counter, from left to right, are the vacuum chamber, telescope and flash apparatus for the Mendenhall i-sc, unci apparatus. Shown below these are the four pendulums used with the Menden- hall apparatus, the one on the right having a thermometer attached. At bottom, right, is the Gull apparatus (cover removed) mentioned in the text, shown with one quartz pendulum. 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
