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. 2018 Oct 23;9(5):2041669518803971. doi: 10.1177/2041669518803971

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© The Author(s) 2018

Creative Commons CC-BY: This article is distributed under the terms of the Creative Commons Attribution 4.0 License (http://www.creativecommons.org/licenses/by/4.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 30. — Geodesic body diagonals. The geodesic lengths are kw 26.3, rc 24.1, gm 18.1, and by 24.3. Notice that the geodesic body diagonals fail to meet in a single point, a sign that the Riemann curvature tensor does not vanish identically.