I have covered several different software packages for doing scientific computation in Linux Journal, but I haven't spent as much time describing available libraries and the kind of work that can be ...

At its heart, general relativity is a geometric theory of gravitation in which spacetime is modelled as a four-dimensional Lorentzian manifold equipped with a metric tensor whose curvature encodes the ...

Scalar-tensor theories generalise Einstein’s general relativity by introducing one or more scalar fields that couple nonminimally to the metric. These scalar degrees of freedom can mediate long-range ...

Alena Tensor completely reverses this approach. It is much easier now to describe gravity in flat space-time in a way that mathematically reproduces general relativity and then uses the known tools of ...