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...peared throughout history, including the work of [[Desargues]] in the 17th century, all the way back to the implicit use of [[spherical geometry]] to understa ...the theory of [[manifold]]s and [[Riemannian geometry]]. Later in the 19th century, it appeared that geometries without the [[parallel postulate]] ([[non-Eucl ...

...m, as well as to various movements of the late 19th century and early 20th century such as [[Luminism (American art style)|American]], [[Belgium|Belgian]], an ...re a soft and diffuse, constant and homogeneous light, much appreciated by artists in times when there was no adequate artificial lighting.<ref>Yot. 2011 p. 4 ...

...g was double those of the deaf. It was five times wider than those of the Chinese participants. The results show that ageism undermines ability through its s ...ue-4-2012/age-management-as-a-tool-for-the-demographic-decline-in-the-21st-century-an-overview-of-its-characteristics|journal=Journal of Entrepreneurship, Man ...