A fully relativistic modified gravitational theory including a fifth force skew symmetric field is fitted to the Pioneer 10/11 anomalous acceleration. The theory allows for a variation with distance scales of the gravitational constant G, the fifth force skew symmetric field coupling strength ω and the mass of the skew symmetric field μ = 1/λ. A fit to the available anomalous acceleration data ...

We propose a new gravitational based hierarchical clustering algorithm using kdtree. kdtree generates densely populated packets and finds the clusters using gravitational force between the packets. Gravitational based hierarchical clustering results are of high quality and robustness. Our method is effective as well as robust. Our proposed algorithm is tested on synthetic dataset and results ar...

Solutions of Einstein’s equations are discussed in which the “gravitational force” is balanced by an electrical force, and which can serve as models for the Cavendish experiment.

We discuss the possibility of verifying the equivalence principle for the zero-point energy of quantum electrodynamics, by evaluating the force, produced by vacuum fluctuations, acting on a rigid Casimir cavity in a weak gravitational field. The resulting force has opposite direction with respect to the gravitational acceleration; the order of magnitude for a multi-layer cavity configuration is...

A laser interferometer gravitational wave detector is, in essence, a device for monitoring a classical force (the gravitational wave) that acts on freely moving test masses (the interferometer's suspended mirrors). \Advanced" detectors, expected to operate in the LIGO/VIRGO interferometric network [1] in the middle or later part of the next decade, will be constrained by the standard quantum li...

A detailed investigation is presented of the energy-momentum tensor approach to the evaluation of the force acting on a rigid Casimir cavity in a weak gravitational field. Such a force turns out to have opposite direction with respect to the gravitational acceleration. The order of magnitude for a multi-layer cavity configuration is derived and experimental feasibility is discussed, taking into...