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physics.class-ph2008
Linear and Non Linear Effects on the Newtonian Gravitational Constant as deduced from the Torsion Balance
Michele Rossi, Lorenzo Zaninetti
The Newtonian gravitational constant has still 150 parts per million of uncertainty. This paper examines the linear and nonlinear equations governing the rotational dynamics of the…
physics.class-ph2005
The cubic period-distance relation for the Kater reversible pendulum
Michele Rossi, Lorenzo Zaninetti
We describe the correct cubic relation between the mass configuration of a Kater reversible pendulum and its period of oscillation. From an analysis of its solutions we conclude th…