CJ on Mathematics and Science

Einstein takes as postulate of his general theory of relativity that gravitational mass = inertial mass.   To Einstein this represented...

Modern physics is supposed to be based on in particular on Einstein's special theory of relativity SR. In discussions with theoretic...

Two twins C and S, Clever (Salviati) and Stupid (Simplicio), decide to part with mutually agreed speed $v$ equipped with identical cesium cl...

Tom Van Flandern  (1940-2009) was a free-thinking physicist who with perplexion made the observation  (along with Laplace and also Newton...

What would Einstein answer to this question: Is the time dilation and space contraction of special relativity real physics or only illusi...

   It is ironical that, in the very field in which Science has claimed superiority to Theology, for example—in the abandoning of dogma and...

The postulates of Einstein's special theory of relativity are : The laws of physics are the same in all inertial frames of referen...

Unphysics of sawing a woman into two pieces. The focus of both the special and general theory of relativity is coordinate systems wit...

A great physics event: Einstein's Nobel Prize reception speech about his special theory of relativity presented to a stunned  King Gus...

Two cars sharing time before collision This is a continuation of the previous post on the special theory of relativity based on the conc...