Der Triumph der Relativitaetstheorie: Bestaetigung der ART

Der Triumph der Relativitaetstheorie: Bestaetigung der ART

Can One Imagine a Closed Universe?
Albert Einstein, manuscript for Geometry and Experience, Berlin 1921, facsimile

Einstein poses the question whether the spherical, curved and closed space of his cosmology can be clearly imagined. He shows that it is absolutely possible: Spherical space is identical to a flat space in which all objects increase in size the greater their distance is from the center.

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