Also known in a derogatory fashion [0] as "adding epicycles" (after the Ptolemaic view of the heavens). [0] https://en.wikipedia.org/wiki/Deferent_and_epicycle

Also known in a derogatory fashion [0] as "adding epicycles" (after the Ptolemaic view of the heavens). [0] https://en.wikipedia.org/wiki/Deferent_and_epicycle#Bad_science https://en.wikipedia.org/wiki/Deferent_and_epicycle#Bad_scie...