File:The American journal of science (1897) (18127272646).jpg

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Title: The American journal of science
Identifier: americanjournal431897newh (find matches)
Year: 1880 (1880s)
Authors:
Subjects: Science
Publisher: New Haven : J. D. & E. S. Dana
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Biodiversity Heritage Library

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About This Book: Catalog Entry
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of Rigidity in Strong Fields. 451 perature, a necessary precaution owing to the delicacy of the differential method employed. Again, variations in the tensile strain of the wires were found to produce a noticeable effect upon the data obtained. This source of error was removed by giving the lower end of the sys- tem of wires vertical freedom of motion, and suspending there- from a small bucket of mercury, the weight of which was made proportional to the cross-sections of the wires, whenever wires of different diameters were inserted in the apparatus. The method of observation is made clear by the section draw- ing of the perfected apparatus given in fig. 1. A vertical sys- tem of two iron wires have their adjoining ends soldered between two straight adjacent pieces of brass wire about 4cm long. These brass wires, besides forming a rigid connection between the two iron wires, serve also to sup- port a \" circular mirror, g, and a pair of vanes, r, r, of copper foil, which are soldered to the ends of a bent cross-piece of fine brass wire, so as to hang verti- cally in a circular water-bath, o, which, by means of a central piece of tubing slips upon and is supported by the water-jacket^, which envelops the lower wire, Z>. A small spring collar, w, holds the bath at the proper position on the water-jacket. These vanes serve to damp the vibrations of the wires. The upper end of the upper iron wire is soldered to a short piece of brass rod, e, which is made to screw tightly into the end of a vertical shaft, A, which is free to revolve within the sleeve, fa This sleeve is grasped in the jaws of a clamp, which
Text Appearing After Image:
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Date
Source https://www.flickr.com/photos/internetarchivebookimages/18127272646/
Author Internet Archive Book Images
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(Reusing this file)		 At the time of upload, the image license was automatically confirmed using the Flickr API. For more information see Flickr API detail.
Volume
InfoField
ser. 4 v. 3 1897
Flickr tags
InfoField
  • bookid:americanjournal431897newh
  • bookyear:1880
  • bookdecade:1880
  • bookcentury:1800
  • booksubject:Science
  • bookpublisher:New_Haven_J_D_E_S_Dana
  • bookcontributor:Smithsonian_Libraries
  • booksponsor:Biodiversity_Heritage_Library
  • bookleafnumber:491
  • bookcollection:biodiversity
  • BHL Collection
  • BHL Consortium
Flickr posted date
InfoField
27 May 2015

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