Abstract
IN the theory of relativity, on which so much has been written during the last few years, one of the main difficulties encountered by most readers is the unfamiliar conception of space and time involved. Apart from the difficulty in the conception of a space-time continuum, the notions that space as we know it may possibly be only of limited extent, and that the sum of the angles of a triangle is not necessarily equal to two right angles, are apt to prove only too bewildering to readers whose knowledge of geometrical matters is confined to the Euclidean system.
Introduction à la géométrie non-Euclidienne.
Par Dr. A. MacLeod. Pp. 433. (Paris: J. Hermann, 1922.) 20 francs.
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B., W. Introduction à la géométrie non-Euclidienne . Nature 111, 11 (1923). https://doi.org/10.1038/111011a0
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DOI: https://doi.org/10.1038/111011a0
