Two influential essays: "Ether and Relativity" (1920) discusses properties demanded of the ether of space by the theory of relativity; "Geometry and Experience" (1921) describes the limits within which the Euclidean or other practical geometric systems can be regarded as valid in connection with the concept of a finite universe.
Einstein on Cosmic Religion and Other Opinions and Aphorisms by Albert Einstein, George Bernard Shaw Einstein's essays explore science as the basis for a "cosmic" religion, embraced by all who share a sense of wonder in the universe. Additional topics include pacifism, disarmament, and Zionism.
Einstein's Essays in Science by Albert Einstein, Alan Harris Speeches and essays in accessible, everyday language profile influential physicists such as Niels Bohr and Isaac Newton. They also explore areas of physics to which the author made major contributions.
The Unity of the Universe by D. W. Sciama This accessible approach uses compelling photos, figures, and examples to address and answer profound questions about the universe. "An engrossing book, an invigorating intellectual exercise." — Scientific American. 1959 edition.
