Eudoxus of Cnidus: Difference between revisions

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| death_place = Knidos, Asia Minor
| field = {{hlist|[[Mathematics]]|[[Physics]]|[[Geography]]|[[Astronomy]]|[[Medicine]]|[[Philosophy]]}}
| known_for = [[Kampyle of Eudoxus]]<br>[[Concentric spheres]]
Around 368 BC, Eudoxus returned to Athens with his students. According to some sources, around 367 he assumed headship of the Academy during Plato's period in Syracuse, and taught [[Aristotle]].{{Citation needed|date=September 2010}} He eventually returned to his native Cnidus, where he served in the city assembly. While in Cnidus, he built an observatory and continued writing and lecturing on [[theology]], astronomy, and [[meteorology]]. He had one son, Aristagoras, and three daughters, Actis, Philtis, and Delphis.
In mathematical astronomy, his fame is due to the introduction of the [[concentric spheres|astronomical globe]], and his early contributions to understanding the movement of the [[planet]]s.
His work on [[Proportion (mathematics)|proportion]]s shows insight into [[real number]]s; it allows rigorous treatment of continuous quantities and not just [[Integer|whole numbers]] or even [[rational number]]s. When it was revived by [[Niccolò Fontana Tartaglia|Tartaglia]] and others in the 16th century, it became the basis for quantitative work in science for a century, until it was replaced by [[Richard Dedekind]].