00754cam a22002291 4500 no 30000005 DLC 20260227111852.0 830615s1930 enka b 000 0 eng no 30000005 (OCoLC)10543373 DLC MnU DLC premarc QC6 .S48 Silberstein, Ludwik, 1872- The size of the universe : attempts at a determination of the curvature radius of spacetime / by Ludwik Silberstein. [London] : Oxford University Press, 1930. viii, 215, [1] p. : tables. diagrs. ; 21 cm. Includes bibliographical foot-notes. Relativity (Physics) Universe, The size of the. 51217 51217