spacetime

Visualising the spacetime geodesics of general relativity

A Python utility for analyzing a given solution to the Einstein's field equations. Built on Sympy.

Sources of the book "Displaying time series, spatial and space-time data with R" (2nd Edition)

A wormhole simulation.

EXPLORE & EDIT REALITY

A ray-tracer for curved spacetimes

Universal spacetime locator. Map every location in the observable universe to a string.

Save, track and query 3D+time locations of objects in the AtomSpace

Special-relativistic phenomena illustrated using spacetime diagrams.

Spacetime Extension for nalgebra

A conversion file for the "units" mathematics utility that modifies core constants setting second = 299 thousand meters and c = 1. This simple change allows the units tool to render mass to energy space to time solutions. Amazingly changing these fundemental constants does not effect calculation results or the usefulness of Units. If your conversion gives mass instead of energy like you were expecting you may sometimes need to specify that you want joules or watts.

The new paradigm for global time keeping

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Source code for the website of hyperboloidal research.

The purpose of this code is to assist academics in Einstein's Theory of General Relativity. This code allows the user to input a spacetime metric of their own design and output the Christoffel symbols, Ricci curvature tensor and Ricci scalar. This code uses the Symbolic Math Toolbox™ in MATLAB® to perform these calculations.

"Lorentz interactive" is an interactive spacetime diagram for the 1D Lorentz transformations. Play around and gain insight!

Kronos

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El curso de Astrofísica y Cosmología de la UNRN