{"id":"https://openalex.org/W2049021576","doi":"https://doi.org/10.1119/1.2344807","title":"\u201cHands-on\u201d epicycles and retrograde motion","display_name":"\u201cHands-on\u201d epicycles and retrograde motion","publication_year":1997,"publication_date":"1997-12-01","ids":{"openalex":"https://openalex.org/W2049021576","doi":"https://doi.org/10.1119/1.2344807","mag":"2049021576"},"language":"en","primary_location":{"id":"doi:10.1119/1.2344807","doi":"https://doi.org/10.1119/1.2344807","is_oa":false,"landing_page_url":"https://doi.org/10.1119/1.2344807","pdf_url":null,"source":{"id":"https://openalex.org/S104921184","display_name":"The Physics Teacher","issn_l":"0031-921X","issn":["0031-921X","1943-4928"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","erih-plus","jufo-1","norway-1","poland-40","russia-white-list-3"],"host_organization":"https://openalex.org/P4310320254","host_organization_name":"American Association of Physics Teachers","host_organization_lineage":["https://openalex.org/P4310320254"],"host_organization_lineage_names":["American Association of Physics Teachers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The Physics Teacher","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5068435946","display_name":"Matthew J. Moelter","orcid":"https://orcid.org/0000-0001-5122-9284","observed_orcids":["https://orcid.org/0000-0001-5122-9284"]},"institutions":[{"id":"https://openalex.org/I146552867","display_name":"University of Puget Sound","ror":"https://ror.org/042drmv40","country_code":"US","type":"education","lineage":["https://openalex.org/I146552867"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Matthew J. Moelter","raw_affiliation_strings":["Department of Physics, University of Puget Sound, 1500 N. Warner, Tacoma, Washington 98416"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics, University of Puget Sound, 1500 N. Warner, Tacoma, Washington 98416","institution_ids":["https://openalex.org/I146552867"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5111749908","display_name":"Bernard A. Bates","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I146552867","display_name":"University of Puget Sound","ror":"https://ror.org/042drmv40","country_code":"US","type":"education","lineage":["https://openalex.org/I146552867"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Bernard A. Bates","raw_affiliation_strings":["Department of Physics, University of Puget Sound, 1500 N. Warner, Tacoma, Washington 98416"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics, University of Puget Sound, 1500 N. Warner, Tacoma, Washington 98416","institution_ids":["https://openalex.org/I146552867"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I146552867"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.38037441,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"35","issue":"9","first_page":"554","last_page":"555"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12250","display_name":"Experimental and Theoretical Physics Studies","score":0.31349998712539673,"subfield":{"id":"https://openalex.org/subfields/3304","display_name":"Education"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T12250","display_name":"Experimental and Theoretical Physics Studies","score":0.31349998712539673,"subfield":{"id":"https://openalex.org/subfields/3304","display_name":"Education"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T13175","display_name":"Historical Astronomy and Related Studies","score":0.2833999991416931,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10072","display_name":"Science Education and Pedagogy","score":0.20919999480247498,"subfield":{"id":"https://openalex.org/subfields/3304","display_name":"Education"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/epicycles","display_name":"epicycles","score":0.8700000047683716},{"id":"https://openalex.org/keywords/retrograde-motion","display_name":"retrograde motion","score":0.996999979019165},{"id":"https://openalex.org/keywords/ptolemaic-model","display_name":"Ptolemaic model","score":0.9589999914169312},{"id":"https://openalex.org/keywords/planetary-motion","display_name":"planetary motion","score":0.8450000286102295},{"id":"https://openalex.org/keywords/hands-on-demonstration","display_name":"hands-on demonstration","score":0.7509999871253967},{"id":"https://openalex.org/keywords/history-of-astronomy","display_name":"history of astronomy","score":0.6990000009536743},{"id":"https://openalex.org/keywords/physics-education","display_name":"physics education","score":0.6190000176429749}],"concepts":[{"id":"https://openalex.org/C104114177","wikidata":"https://www.wikidata.org/wiki/Q79782","display_name":"Motion (physics)","level":2,"score":0.6187248229980469},{"id":"https://openalex.org/C50773583","wikidata":"https://www.wikidata.org/wiki/Q1294199","display_name":"Physics education","level":2,"score":0.5783039927482605},{"id":"https://openalex.org/C74650414","wikidata":"https://www.wikidata.org/wiki/Q11397","display_name":"Classical mechanics","level":1,"score":0.41155609488487244},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.3994457721710205},{"id":"https://openalex.org/C145420912","wikidata":"https://www.wikidata.org/wiki/Q853077","display_name":"Mathematics education","level":1,"score":0.37617969512939453},{"id":"https://openalex.org/C121684516","wikidata":"https://www.wikidata.org/wiki/Q7600677","display_name":"Computer graphics (images)","level":1,"score":0.3386063873767853},{"id":"https://openalex.org/C2777686260","wikidata":"https://www.wikidata.org/wiki/Q144037","display_name":"Calculus (dental)","level":2,"score":0.3244122266769409},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.29658085107803345},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.28753527998924255},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.0872119665145874},{"id":"https://openalex.org/C199343813","wikidata":"https://www.wikidata.org/wiki/Q12128","display_name":"Dentistry","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1119/1.2344807","doi":"https://doi.org/10.1119/1.2344807","is_oa":false,"landing_page_url":"https://doi.org/10.1119/1.2344807","pdf_url":null,"source":{"id":"https://openalex.org/S104921184","display_name":"The Physics Teacher","issn_l":"0031-921X","issn":["0031-921X","1943-4928"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","erih-plus","jufo-1","norway-1","poland-40","russia-white-list-3"],"host_organization":"https://openalex.org/P4310320254","host_organization_name":"American Association of Physics Teachers","host_organization_lineage":["https://openalex.org/P4310320254"],"host_organization_lineage_names":["American Association of Physics Teachers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The Physics Teacher","raw_type":"journal-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.1028.86","doi":null,"is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1028.86","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"https://www.researchgate.net/profile/Matthew_Moelter/publication/43292210_Hands-On_Epicycles_and_Retrograde_Motion/links/0c960529df75b48280000000.pdf","raw_type":"text"},{"id":"pmh:oai:digitalcommons.calpoly.edu:phy_fac-1115","doi":null,"is_oa":false,"landing_page_url":"https://digitalcommons.calpoly.edu/cgi/viewcontent.cgi?article=1115&context=phy_fac","pdf_url":null,"source":{"id":"https://openalex.org/S4377196328","display_name":"DigitalCommons - CalPoly (California State Polytechnic University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I98947143","host_organization_name":"California State Polytechnic University","host_organization_lineage":["https://openalex.org/I98947143"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Physics","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.8278999924659729,"display_name":"Quality education","id":"https://metadata.un.org/sdg/4"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":1,"referenced_works":["https://openalex.org/W1592260322"],"related_works":["https://openalex.org/W2080599341","https://openalex.org/W2097225069","https://openalex.org/W3008914695","https://openalex.org/W4234022031","https://openalex.org/W7096755962","https://openalex.org/W2589001805","https://openalex.org/W2946368451","https://openalex.org/W2059493278","https://openalex.org/W2992316721","https://openalex.org/W2009126219"],"abstract_inverted_index":{"Any":[0],"model":[1],"that":[2],"attempts":[3],"to":[4,13,44,58,84,93,101,135],"describe":[5],"the":[6,18,22,26,29,46,56,74,103,110,113],"time":[7],"evolution":[8],"of":[9,21,28,55,76,109],"planetary":[10,62],"positions":[11],"needs":[12],"account":[14,60],"for":[15,61,91,140,156],"retrograde":[16],"motion,":[17],"apparent":[19],"reversal":[20],"planet's":[23],"path":[24],"against":[25],"background":[27],"fixed":[30],"stars.":[31],"In":[32],"discussing":[33],"mod":[34],"els":[35],"ofthe":[36],"cosmos":[37],"through":[38],"history,":[39],"it":[40,86],"is":[41,87,119],"standard":[42,114],"practice":[43],"present":[45,82],"Ptolemaic":[47],"model.":[48],"1":[49],"This":[50,145],"model,":[51],"which":[52,118,132],"was":[53],"one":[54],"first":[57],"successfully":[59,150],"motions":[63],"in":[64,153,161],"detail,":[65],"has":[66,147],"as":[67],"its":[68],"most":[69],"notable":[70],"geo":[71],"metric":[72],"feature":[73],"use":[75],"epicycles":[77],"and":[78,98,160],"deferent":[79,99],"circles.2":[80],"When":[81],"ed":[83],"students,":[85],"sometimes":[88],"diffi":[89],"cult":[90],"them":[92],"envision":[94],"how":[95],"an":[96,162],"epicycle":[97],"combine":[100],"produce":[102],"characteristic":[104],"backward":[105],"motion.":[106,144],"Textbook":[107],"treatments3":[108],"topic":[111],"include":[112],"loop-the":[115],"loop":[116],"picture,":[117],"inherently":[120],"stat":[121],"ic.":[122],"We":[123],"have":[124],"developed":[125],"a":[126,137],"\"hands-on\"":[127],"exercise,":[128],"using":[129],"simple":[130],"supplies,":[131],"enables":[133],"students":[134,152],"get":[136],"dynamic":[138],"feel":[139],"planets":[141],"executing":[142],"epicyclical":[143],"exercise":[146],"been":[148],"used":[149],"by":[151],"our":[154],"\"physics":[155],"poets":[157],"\"":[158],"course":[159],"interdisciplinary,":[163],"team-taught":[164]},"counts_by_year":[],"updated_date":"2026-11-08T12:12:28.789561","created_date":"2016-06-24T00:00:00"}