kendrit kshetra

eudoxus, callipus aur aristotal dwara vikasit kendrit (yaa samkendrik) kshetron key brahmand sambandhi model mein prithvi parr kendrit sabhi khagoliya kshetron koo niyojit kiya gayaa haye. iss sambandh mein, yeh kaee kendron key saath epicyclic aur sanaki model seey alag thaa, jinka upayog tolemy aur anya ganitiya khagolvidon dwara coppernicus key samay taka kiya jaataa thaa.
sankendrit kshetron kii avadharana kii utpatti.
synidus kaa eudoxus sankendrit kshetron kii avadharana vikasit karane vaalaa pahala khagolshastri thaa. vaha mool roop seey plato kii akadami mein ack chhaatr thaa aur maanaa jaataa haye kii vaha plato aur pythagorus kii brahmand sambandhi atkalon seey prabhaavit thaa. grahon kii kathit asangat gatiyon kii vyakhya karane aur khagoliya vastuon kii gati kii sateek ganana key liye ack samaan model vikasit karane key liye unhone samkendrit kshetron kaa vichaar rakhaa. unaki koee bhee pustak aadhunik samay taka jeevit naheen rahee haye aur unake brahmand sambandhi siddhanton key baare mein humm joe kuchh bhee jaanate hain vaha abhijaat varg aur saralata key karyon seey aataa haye. inn karyon key anusaar, eudoxus key model mein pratyek khagoliya vastu key liye ack prakaar kii avalokan yogya gati kii vyakhya karane vaale pratyek gole key saath sattais samkendrit gole they. eudoxus nishchit sitaaron key liye ack kshetra nirdhaarit kartaa haye joe unaki dainik gati kii vyakhya karane key liye maanaa jaataa haye. vaha soorya aur chandrama donon koo teen gole nirdhaarit kartaa haye jisamen pahala golaa sthir sitaaron key gole key samaan gati kartaa haye. doosara kshetra grahansheel tala parr soorya aur chandrama kii gati kii vyakhya kartaa haye. teesara kshetra ack "akshaanshiya jhukaav" vritt parr aage badhane vaalaa thaa aur brahmand mein soorya aur chandrama kii akshansh gati kii vyakhya karane vaalaa thaa. paaraa, shukra, mangal, jupiter aur shani koo chaar gole diye gaye they joe usa samay ekmatra gyaat grah they. grahon key pahale aur dusare gole soorya aur chandrama key pahale dou gole kii tarah chaley gaye. symplicious key anusaar, grahon key teesare aur chauthe gole koo iss tarah seey aage badhana thaa jisase hippopied key roop mein jaanaa jaane vaalaa ack vakr banaa. hippopied grahon kii pratigaami gatiyon koo samajhane kaa ack tarika thaa. vigyaan key kaee itihaaskaar, jaise michael jey. crow, ney tark diyaa haye kii eudoxus ney apane kendrit kshetron kii pranali koo brahmand kaa vaastavik pratinidhitva naheen maanaa, balki socha kii yeh kewal grahon kii gati kii ganana key liye ack ganitiya model thaa.
baad mein eudoxus model mein parivardhan.
eudoxus key samkaaleen, callipus ney samkendrik kshetron kii kull sankhya koo badhaakar apani pranali mein sudhaar karane kaa prayaas kiya. unhone soorya aur chandrama key liye dou atirikt gole jode aur saath hii mangal, paaraa aur shukra key liye ack atirikt golaa jodaa. inn atirikt kshetron koo eudoxus kii mool pranali mein kuchh ganana samasyaon koo thheek karna thaa. callipus pranali kuchh khagoliya vastuon kii gatiyon kaa behtar anuman lagaane mein saksham thee, lekin unaki pranali mein abhee bhee kaee samasyaaen theen aur kaee khagoliya tippaniyon key liye jimmedaar naheen thee.
aristotal ney "tatvamimansa" aur "dee kelo" (swarg parr) mein kendrit kshetron kii apani pranali vikasit kii. unhone socha kii eudoxus aur callipus donon key model key bheetar bahut cumm gole they aur unhone callipus pranali mein aur adhik gole jode. unhone jupiter aur mars mein teen gole jode aur saath hii kull pachas-paanch golon key liye shukra, paaraa, soorya aur chandrama mein chaar gole jode. baad mein unhone apane parinamon kii sateekta parr sandeh kiya aur kahaa kii unakaa maanana thaa kii yaa tou saintalis yaa untalis kendrit kshetra they. itihaaskaar iss baare mein anishchit hain kii brahmand mein kitane kshetra they jinake baare mein 43 seey 55 taka key siddhant they. eudoxus key vipareet, aristotal kaa maanana thaa kii unaki pranali brahmand key ack vaastavik model kaa pratinidhitva karati haye.

