It leads to the famous equation that (*) E equals m c-squared, and it expanded Galileo's earlier work by including the fact that the speed of light is the same in all reference frames.
The mathematical framework for this theory was laid when Henri Poincaré proved that Lorentz transformations are a subset of his namesake group, preserving the symmetries of the flat space-time of the four-dimensional Minkowski space, not curved by any gravitational forces. It leads to the famous equation that (*) E equals m c-squared, and it expanded Galileo's earlier work by including the fact that the speed of light is the same in all reference frames. For ten points, identify this theory of Albert Einstein, developed in 1905 along with a similarly-named "general" type.
The mathematical framework for this theory was laid when Henri Poincaré proved that Lorentz transformations are a subset of his namesake group, preserving the symmetries of the flat space-time of the four-dimensional Minkowski space, not curved by any gravitational forces.
{special relativity} (prompt on partial, do not accept “general relativity”)