When an object moves extremely fast—close to the speed of light—certain basic assumptions that we take for granted no longer ...

Machine learning helped show how harnessing the weird effects of Einstein’s special relativity could enable a new kind of ...

Special relativity tells us motion warps space and time. Einstein’s central coup with general relativity was to combine that with a principle noted over three centuries earlier by Galileo ...

Einstein’s special relativity, introduced in 1905, brought together space and time into one four-dimensional model. It rests on two key ideas: Galileo’s principle of relativity and the ...

Reading through an excerpt on Big Think recently, it struck me that one of these rules, which I’ve nicknamed “the puzzle ...

Exactly 100 years ago, famed Austrian physicist Erwin Schrödinger (yes, the cat guy) postulated his eponymous equation that ...

A unified theory of everything has long eluded scientists due to gravity being irreconcilable with the three other ...

Since, according to Einstein's special theory of relativity, time moves slower ... Einstein decided, based on the "principle of equivalence." Similarly, if your elevator were to plummet far ...

Special relativity and Lorentz transformations; Scalar and electromagnetic fields; Curved spacetime and the metric tensor; The equivalence principle; Geodesics, covariant derivatives, and Killing ...