Account of pendulum experiments undertaken in the Harton Colliery, for the purpose of determining the mean density of the earth, by G. B. Airy

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                                             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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