Georg Joachim Rheticus

**Georg Joachim de Porris**, wanda aka fi sani da **Rheticus** (/ˈrɛtɪkəs/; 16 ga Fabrairu 1514 - 4 ga Disamba 1574), masanin lissafi ne, masanin taurari, mai tsara taswira, mai yin kayan aiki, likitan likita, kuma malami. Wataƙila an fi saninsa da teburin trigonometric kuma a matsayin ɗalibin Nicolaus Copernicus. Ya sauƙaƙa bugawa na ubangijinsa *De revolutionibus orbium coelestium* (*A kan Juyin Juya Halin Sama*).

## Sunan mahaifi
An haifi Rheticus a Feldkirch a cikin Archduchy na Austria . Iyayensa duka, Georg Iserin da Thomasina de Porris, sun fito ne daga asalin Italiya kuma suna da wadata mai yawa, mahaifinsa shi ne likitan gari da kuma jami'in gwamnati. Mahaifinsa ne ya ilimantar da shi har zuwa shekara 14 lokacin da Georg (Iserin) ya yi amfani da amincin yawancin marasa lafiyarsa, yana sata kaya da kuɗi daga gidajensu. A shekara ta 1528 an same shi kuma an kashe shi saboda laifukansa, kuma a sakamakon haka an cire danginsa daga sunansu.

Iyalin sun karbi sunan mahaifiyar: de Porris . Daga baya a matsayin dalibi a Jami'ar Wittenberg, Georg Joachim ya ɗauki sunan Rheticus, wani nau'i na sunan Latin don yankin gidansa, Rhaetia, lardin Roma wanda ya haɗa da sassa na Austria, Switzerland da Jamus. A cikin jerin karatun Jami'ar Leipzig an fassara sunan danginsa, de Porris, zuwa Jamusanci a matsayin von Lauchen . An sanya masa suna  da asteroid 15949 Rhaeticus.

## Masu ba da gudummawa
Bayan mutuwar Georg Iserin, Achilles Gasser ya ɗauki aikin likita, ya taimaka wa Rheticus ya ci gaba da karatunsa da tallafa masa, a ƙarshe ya kai ga ba shi wasika ta gabatarwa ga Philipp Melanchthon, masanin tauhidi da malami wanda zai zama babban mai tallafawa, bayan ya sake tsara dukkan tsarin ilimi na sassan Lutheran na Jamus, gyarawa da kafa sabbin jami'o'i da yawa a lokacin gyarawa. Wannan dangantakar musamman ba da daɗewa ba za ta yi masa hidima sosai kamar yadda Melanchton mai yiwuwa ya zaɓe shi musamman don Jami'ar Wittenberg. Rheticus ya yi karatu a Feldkirch, Zürich da Wittenberg inda ya sami MA a 1536, bayan haka Melanchthon ya nada Rheticus a matsayin farfesa na ƙananan lissafi, lissafi da ilimin taurari, a Jami'ar Wittenberg.

A watan Mayu na shekara ta 1539, Rheticus ya isa Frauenburg (Frombork), inda ya shafe shekaru biyu tare da Copernicus .  Duk da kokarin da aka saka hannun jari har zuwa yanzu, Copernicus bai gama rubutun hannu na aikinsa ba, a bayyane yake ya zaɓi kada ya nemi bugawa, mai yiwuwa saboda batutuwan da ke daidaita irin waɗannan binciken tare da halin addini da aka gudanar a lokacin. A ƙarshe duk da haka, za a motsa shi don ya ba da damar Rheticus ya rubuta wani abu game da bincikensa duk da cewa yana sane da zargi da jayayya da zai iya kawowa. Sai kawai bayan karbar bakinsa, wanda aka yi la'akari da shi mafi kyawun gabatarwa ga aikin Copernicus, zai ba Rheticus ƙarin izini don gyarawa da buga aikinsa gaba ɗaya. A cikin wannan, Rheticus zai tabbatar da cewa yana da mahimmanci wajen amfani da haɗin zamantakewa da aka ƙirƙira a baya da kuma inganta sabbin dabarun kawai don kawo shi ga bugawa. Don haka ne kawai saboda wannan taron da ba a sani ba cewa ka'idar heliocentric, ra'ayi wanda har yanzu ba za a yarda da shi ba har tsawon shekaru masu zuwa, za a kawo shi a haske.

## Manazarta