DigiCat Publishing presents to you this special edition of "Sidelights on Relativity" by Albert Einstein. DigiCat Publishing considers every written word to be

Two influential essays: "Ether and Relativity" (1920) discusses properties demanded of the ether of space by the theory of relativity; "Geometry and Experience"

Two of the greatest astrophysicists of the 20th century explore general relativity, properties of matter under astrophysical conditions, stars, and stellar syst

Landmark study discusses Einstein's theory, extends thermodynamics to special and general relativity, and also develops the applications of relativistic mechani