## A Measurement of the Newtonian Gravitational Constant G |

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2GMm aluminum Appendix attracting and suspended attracting cylinders attracting masses Burr-Brown calculated FFT frequencies centroid Chapter Constant G Contributing to Fluctuations damping data in Figure Detector determined diagram Dy-Fe compound effective torsion constant equation error in G errors associated experimental apparatus Fast Fourier Transform FFT algorithm FFT frequencies versus Figure A2 frequency of oscillation Frequency shift frequency spectrum fundamental frequency fundamental peak G is calculated G.T. Gillies gravitational potential Helmholtz coils jiHz large masses Luther and Towler magnetic coupling magnetic dipole-dipole interaction magnetic field magnetic moments measurement of G mu-metal Newtonian Gravitational Constant offset angle percent photodiode placement present experiment present measurement raw data sampling interval sensitivity shift in frequency sine wave yields sine waves Fitting small angle approximation small mass system spin-spin coupling static error Summary of Estimated suspended mass system suspended system symmetry axis torsion pendulum torsional mode Tungsten vacuum value for G vertical offset zero phase correction