
veyu puu

chainees jyothishaasthranjanum gaana raajavamshathile (960-1279 AD) raashtreeyakkaaranumaayirunu veyu puu (; wade-gails veyu puu). addeham oru saadhaaranakkaaranaayi janichuvenkilum oduvil kaifenginte thalasthaanathu saamraajyathva kottaaratthil jolie cheythirunna oru jyothishaasthranjanaayi addeham prashasthiyilekku uyarnnu. beuro oof aastronamiyude head offeesaraayi sevanamanushtikkukayum veyu puikkoppam vividha padhathikalil pravartthikkukayum cheytha prashastha gaananaya polymath raashtrathanthranjanum shaasthranjanumaaya shhein kuvoyude (1031-1095 ad) vishwastha sahapravarthakanaayi veyu maari.
kodathiyile nettangal.
eiii. dii. 1072-ll shhein kuvo jyotishaasthra dayaraktarettinte supervisoraayappol, veyu puu shenninte anuyayiyaayi maarukayum chainees kalandar sanbradaayathile shenninte anuyojyamaaya parishkaarangalil pankedukkaan utsukanaavukayum cheythu. vividha pandithanmaarude sahaayathodeyum jyothishaasthrathekkur ezhuthiya shekharicha pusthakangalude oru valia shekharathodeyum kozhiyum veyiyum eee valia padhathi aarambhichu. veyu puyude sahaayathode, anchu varshathinullil rathrikaala jyotishaasthra nireekshanangalude oru parambara nadatthaan shhein padhathiyittu. kooduthal krithyamaaya jyotishaasthra nireekshanangalum recordingukalum anuvadikkunnathinu, shiin kuvo karangunna armillery golam, gnomon, clepsidra clock, saitting tube ennivayude saankethika roopakalppanakal mechappeduthi. shiin kuvo kazhcha tyoobinte veethiyude saadhaarana vyaasam kaalibrett cheythu, athinaal dhruva nakshathratthinte nireekshanam anischithamaayi anuvadikkunnu (anchaam noottaandil suu jenginte kaalam muthal ithu maari). iva upayogichu, grahangalude sharashari vegathayum avayude bhramanapathangalile grahangalude krithyamaaya sthaanavum pravachikkaan shen veyiyum shramichu. grahangalude krithyamaaya kordinettukal oru nakshatra bhoopadatthil nireekshikkunnathinum recorducheyyunnathinumla oru samvidaanam avar sthaapichu, motham anchu varshathekku raathriyil moonnu thavana cheythu. pinnokkamaattam enna ashayam ulppede grahangalude chalanangalude vyathiyanangal vishadeekarikkunnathil shhein kuvo oru prapanchashaasthraparamaaya sidhaanthangal undaakki. maruvashathu, prathyaksha sooryanumaayi thaarathamyappeduthumbol sharashari sooryante pazhaya kanakkukoottal saankethikavidya krithyamallennu veyu puu manassilakki, kaaranam randaamathethu chalanatthinte thwarithappeduthiya ghattathil athinekkaal munnilum mandagathiyilulla ghattathil athinu pinnilumaanu. athinaal, addeham sooryante chalanam grahana sidhaanthathil ulppeduthi.
350 varshangalkk sesham ganyamaaya pishakinte avasthayilekku marria muun tang jyothishaasthranjan, ganithashaasthranjan, mechanical enchineeyar yii singh (683-727 AD) ennivarude chandra sidhaanthavum kordinettukalum veysinte kaalathe soong rajavamsha jyothishaasthranjar ippozhum nilanirtthi. ithu sariyaakkaan, kozhiyum veyiyum chandrante bhramanapathathinaayi anchu varshathinide raathriyil moonnu thavana samanamaaya jyotishaasthra rekhakal sookshichu. veyiyudeyum shenninteyum pravartthanatthe kodathiyile udyogastharum saha jyothishaasthranjarum shakthamayi ethirthu, prashasthamaaya yii singhinte kordinettukal krithyamallenna avarude nirbandhathil avar aswastharaayi. vee puu oru saadhaaranakkaaranaayi janichenkilum thante mekhalayil avaril palarekkaalum kooduthal vaidagdhyam nediyirunnuvenna vastutha varenyarum vidyaasambannarumaaya manthrimaarum pramukha jyothishaasthranjarum apamanikkappettu. samshayaaspadamaaya thettu theliyikkaan veyiyum shen gnomon upayogichu oru pothu prakadanam nadathiyappol, mattu mantrimar chandra pishak thiruthaan vimukhathayode sammathichu. chandra pishak thiruthunnathu vijayamaayirunnuvenkilum, mattu manthrimaarum udyogastharum oduvil veyiyudeyum shenninteyum grahangalude chalanangalude rekhappeduthiya kozhs ploating nirasichu, athesamayam kodathi kaaryakshamamallaathathum pazhayathumaya modaline aashrayichu. ithinartham grahangalude chalanathinu ettavum moshamaaya pishakukal maathrame thiruthiyittulloo, niraashayode, shhein ezhuthi, "aaa kalandar nirmmaathaakkalude koottatthinte puram kadichathinaal thante kalaye phalavathaayathil ninnu thadayaan kazhiyumaayirunnuvennath ethra sankadakaramaayirunnu!"

