. Carnegie Institution of Washington publication. THE AID OF THE ACHROMATIC FRINGES. 17 TABLE 2.—Thin hard rubber rod. .£,= cm.; diameter cm-. ^4 = ; £Xlo10 = Initial load about kg.; additional load kg per turn (w = r). Series i Series 4 • n 10* N io'AAr W = I. io10£ io3N n-i. io10E 0 y* 2A :! cm. i-9 8-4 IO.^ cm. 6^5 6-3 6-3 2-34 2-37 2-37 cm. 3-5 5-4 9-4 1 1. 6 cm. 6-3 2-49 2-37 2-39 2 21A 15-7 2 I^-S i% ilA i l/3 O 12. 1 10. 1 7-9 6^0 5-9 2-49 2-49 2-53
. Carnegie Institution of Washington publication. THE AID OF THE ACHROMATIC FRINGES. 17 TABLE 2.—Thin hard rubber rod. .£,= cm.; diameter cm-. ^4 = ; £Xlo10 = Initial load about kg.; additional load kg per turn (w = r). Series i Series 4 • n 10* N io'AAr W = I. io10£ io3N n-i. io10E 0 y* 2A :! cm. i-9 8-4 IO.^ cm. 6^5 6-3 6-3 2-34 2-37 2-37 cm. 3-5 5-4 9-4 1 1. 6 cm. 6-3 2-49 2-37 2-39 2 21A 15-7 2 I^-S i% ilA i l/3 O 12. 1 10. 1 7-9 6^0 5-9 2-49 2-49 2-53 5-9 2-53 2-45 2-45 difficult to interpret; for the reversal of the twist may imply some dislocation of the spring, like a twist around its axis, for instance. In table 2, E has there- fore been computed from the data of AvV for n = i, leaving out the irregularities specified. The values of E in a given branch (ascending or descending) of the cycles is virtually constant. The mean values in series 3 are (ascending) , (descending) ; in series 4, (ascending) , (descending) The rod is always apparently more rigid in the case when stress is removed than when it is added. But this difference decreases and would probably vanish if the experiments were indefinitely continued. It eventually vanishes from triplets. The mean of the whole of the third series is £XicT10=; of the fourth, EXicr10 = , which may be regarded as satisfactory for the body in ques- tion. We may note that a dimension-ratio of 10/1 has been required to obtain this result. £ koniit, JJUtt^ ^-. 0 ~~%7% ,ek^. 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 Carnegie Institution of Washington. Washington, Carnegie Institution of Washington
Size: 2291px × 1091px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorcarnegie, bookcentury1900, bookdecade1900, bookyear1902
