Account of pendulum experiments undertaken in the Harton Colliery, for the purpose of determining the mean density of the earth, by G. B. Airy
Equations 18.C 2.D +2.E +P 4.R 15.S = +10557 2.C +15.D 14.E 5.P 5.R +S = +577 +2.C 14.D +18.E +2.P 6.R 2.S = 458 C 5.D +2.E +22.P 16.R 4.S = +14048 4.C +5.D 6.E 16.P +19.R +2.S = 7873 15.C +D 2.E 4.P +2.R +18.S = 16851 Approximates Solutions assuming D = 0 C = 720 D = 0 E = 240 P = +180 R = 330 S = 1500 These are applied, with signs changed, to correct the computed logarithmic Rates in the Swings which included in the last Table: and thus are formed the <s>[?]</s> "Corrected Logarithmic Rates" in the table which follows next. <s>30</s>28. It is impossible to give here in detail the whole of the
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Manuscript details
 Author
 George Biddell Airy
 Reference
 PT/54/5
 Series
 PT
 Date
 1855
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Account of pendulum experiments undertaken in the Harton Colliery, for the purpose of determining the mean density of the earth, by G. B. Airy, 1855. From The Royal Society, PT/54/5
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