https://www.scirp.org/journal/papercitationdetails?paperid=19120&JournalID=69
Using the equation of motion expression in a curved space proper time is a useful method to explain the relation between the curvature of space-time and the...
special relativityin thegeneralizedpresence
https://www.sciencealert.com/special-relativity
Albert Einstein's theory of special relativity is an explanation of how a change in an object's speed affects measurements of its time, space, and mass.
what isspecial relativitysciencealert