![\"rub-i](\"https:\/\/epochtimestr.com\/wp-content\/uploads\/2011y\/rub-i-Daire-600x320.jpg\")
<\/p>\n<\/p>\nRub\u2019-i d\u00e2ire ile namaz vakitleri, k\u0131ble tayini, g\u00fcne\u015fin do\u011fma ve batma zaman\u0131, y\u00fckseklik \u00f6l\u00e7me gibi astronomik bilgiler hesaplan\u0131yordu…<\/h2>\n
L\u00fcgat manas\u0131 d\u00f6rtte bir daire demektir. Trigonometri bilgisine g\u00f6re, hesaplar\u0131n kolayl\u0131\u011f\u0131 bak\u0131m\u0131ndan, a\u00e7\u0131sal hareketler, dairenin d\u00f6rtte biri olan 90 dereceye indirgenmi\u015ftir. Enlem ve boylam dereceleri referans al\u0131narak kendi ekseninde ve g\u00fcne\u015fin etraf\u0131nda d\u00f6nen, d\u00fcnyan\u0131n g\u00fcnl\u00fck ve y\u0131ll\u0131k hareketi grafik h\u00e2linde g\u00f6sterilir. G\u00fcne\u015fin irtifa derecelerine g\u00f6re \u00e7izilmi\u015f yaylar \u00fczerinde ay ve g\u00fcnleri g\u00f6steren i\u015faretler vard\u0131r. Rubu tahtas\u0131 da denilen bu alet ile, namaz vakitleri, k\u0131ble tayini, g\u00fcne\u015fin do\u011fma ve batma zaman\u0131, y\u00fckseklik \u00f6l\u00e7me gibi astronomik bilgiler hesaplanmaktad\u0131r.<\/p>\n
Hicri 4. as\u0131rda, Ebu Bekr Muhammed bin \u00d6mer M\u00fcneccim, Rub\u2019-i daireyi imal edip, bununla namaz vakitlerini tayin etti. Rubu tahtas\u0131, 19. Y\u00fczy\u0131la kadar Osmanl\u0131 Devletinde, b\u00fct\u00fcn \u015fehir ve kasabalarda kullan\u0131lmaya devam etti.<\/p>\n
K\u00e2d\u00ee Adud taraf\u0131ndan yaz\u0131lan ve \u015eerif C\u00fcrcani\u2019nin \u015ferh etti\u011fi (\u015eerh-i Mevak\u0131f) bin sahife kadar olup, yer k\u00fcresinin yuvarlak oldu\u011fu, do\u011fudan bat\u0131ya d\u00f6nd\u00fc\u011f\u00fc ispat edilmekte, atom ve maddenin h\u00e2lleri anlat\u0131lmaktad\u0131r. Bu kitap uzun y\u0131llar medreselerde ders kitab\u0131 olarak okutuluyordu. K\u00e2d\u00ee Adud, miladi 1300 y\u0131l\u0131nda do\u011fdu, 1354 y\u0131l\u0131nda vefat etti. Bu tarihten 3 as\u0131r sonra ya\u015fayan Galileo, d\u00fcnyan\u0131n d\u00f6nd\u00fc\u011f\u00fcn\u00fc \u0130slam \u00e2limlerinin kitaplar\u0131ndan \u00f6\u011frenip s\u00f6yleyince su\u00e7 say\u0131ld\u0131. 17. y\u00fczy\u0131l sonlar\u0131na kadar medreselerde yeti\u015fen \u00e2limler, d\u00fcnyaya \u00f6nderlik ettiler.<\/p>\n
Ne yaz\u0131k ki; \u0130ngilizler taraf\u0131ndan aldat\u0131lan Sadrazam Mustafa Re\u015fit Pa\u015fa, medreselerden fen derslerini kald\u0131rd\u0131. Bilim ve teknikte gerileme ba\u015flad\u0131. Din adamlar\u0131na gerici damgas\u0131 vuruldu. Tarih boyunca yaz\u0131lm\u0131\u015f olan binlerce kitap k\u00fct\u00fcphanelerde mahsur kald\u0131. Hakikat Kitabevi 1987 y\u0131l\u0131nda (Rub\u2019-i daire) \u00e2letini yeniden imal ederek unutulmu\u015f olan bir ilmi meydana \u00e7\u0131kard\u0131.<\/p>\n
<\/p>\n OSMANLI\u2019NIN B\u0130LG\u0130SAYARI<\/strong><\/p>\n Rubu tahtas\u0131n\u0131 \u2018\u2019Osmanl\u0131\u2019n\u0131n bilgisayar\u0131\u2019\u2019 diye adland\u0131ran Prof. Dr. Atilla Bir taraf\u0131ndan 10-Haziran 2009 tarihinde elektrik m\u00fchendisleri odas\u0131 \u0130stanbul \u015fubesinde seminer verilmi\u015fti.<\/p>\n Seminerde, m\u00fchendislere bu aletin prensiplerini tan\u0131tan ve nas\u0131l uyguland\u0131\u011f\u0131n\u0131 g\u00f6steren Prof. Dr. Atilla Bir, Rubu tahtas\u0131n\u0131n 16. y\u00fczy\u0131lda Osmanl\u0131 Devletinde \u00e7ok say\u0131da kullan\u0131ld\u0131\u011f\u0131n\u0131, zaman ve y\u00f6n tayini problemlerinin \u00e7\u00f6z\u00fcm\u00fcnde ba\u015far\u0131yla uyguland\u0131\u011f\u0131n\u0131 belirtti.<\/p>\n Yap\u0131lan bu ara\u015ft\u0131rmada, Hakikat Kitabevi taraf\u0131ndan hizmete sunulan Rub\u2019-i d\u00e2ire bilgisi ve yukar\u0131da ad\u0131 ge\u00e7en seminer dikkate al\u0131nmas\u0131 gereken bir geli\u015fmedir.<\/p>\n Umal\u0131m da ilahiyat fak\u00fcltesindeki derslerde (Rub\u2019-i d\u00e2ire) konusu i\u015flensin. Ya da hi\u00e7 olmazsa doktora tezi haz\u0131rlayan akademisyenlere se\u00e7meli ders olsun.<\/p>\n","protected":false},"excerpt":{"rendered":" Rub\u2019-i d\u00e2ire ile namaz vakitleri, k\u0131ble tayini, g\u00fcne\u015fin do\u011fma ve batma zaman\u0131, y\u00fckseklik \u00f6l\u00e7me gibi astronomik bilgiler hesaplan\u0131yordu… L\u00fcgat manas\u0131 d\u00f6rtte bir daire demektir. Trigonometri bilgisine g\u00f6re, hesaplar\u0131n kolayl\u0131\u011f\u0131 bak\u0131m\u0131ndan, a\u00e7\u0131sal hareketler, dairenin d\u00f6rtte biri olan 90 dereceye indirgenmi\u015ftir. Enlem ve boylam dereceleri referans al\u0131narak kendi ekseninde ve g\u00fcne\u015fin etraf\u0131nda d\u00f6nen, d\u00fcnyan\u0131n g\u00fcnl\u00fck ve y\u0131ll\u0131k […]<\/p>\n","protected":false},"author":12791,"featured_media":96845,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"","_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":"","_yoast_wpseo_focuskw_text_input":""},"categories":[1,37],"tags":[],"yoast_head":"\n