منتديات دريم بوكس  




العودة   منتديات دريم بوكس > >

English Content ENGLISH FORUM MyDreambox.net you can discuss anything in English

  1  
Dreambox-Sat





Nicolaus Copernicus's 540th birthday marked by Google doodle






Nicolaus Copernicus, famed mathematician, astronomer, and the man whose work popularised the thinking that Earth revolves around the Sun, instead of the other way round as was commonly believed at the time, is the subject of Tuesday's Google doodle.

Nicolaus Copernicus was born on 19 February 1473 in the city of Thorn, in the province of Royal Prussia, in the Crown of the Kingdom of Poland. Copernicus completed his matriculation in 1491-92 Copernicus and began his studies at the Department of Arts during the heyday of the Krakow astronomical-mathematical school, which laid the foundations for his subsequent mathematical achievements. Copernicus became a pupil of the famous Albert Brudzewski, who was the first to state that the Moon moves in an ellipse and always shows its same side to the Earth, and was as established name in astronomy during the time.

Nicolaus Copernicus did not graduate from the college, and later enrolled at a university in Bolgona, Italy. He stayed in Italy until 1503, at which point he returned to Warmia, to live with his uncle, who enjoyed the title Prince-Bishopric of Warmia. Copernicus was his uncle's secretary and physician and resided in the Bishop's castle at Lidzbark (Heilsberg). This is where he began work on his heliocentric theory.

Heliocentricism is the astronomical model in which the Earth and planets revolve around a relatively stationary Sun at the centre of the Solar System. Though Heliocentricism has now been proven and is widely accepted, it wasn't the case during Copernicus's time, when many, including most religious institutions and leaders, believed that the Earth was at the centre of the Universe. This belief has been termed Geocentrism.

Copernicus published the first draft of his heliocentric theories some time before 1514. This was shared with a small group of friends under the title "Commentariolus" ("Little Commentary"). He spent the next several years improving upon this theory via observing astronomical bodies and mathematical calculations. By 1532 Copernicus had all but completed his work and had consolidated his observations in a manuscript titled De revolutionibus orbium coelestium. However, he refused to have this published and shared beyond his inner circle as he did not want to risk the scorn "to which he would expose himself on account of the novelty and incomprehensibility of his theses."

In 1539, Georg Joachim Rheticus, a mathematician, came to live with Nicolaus Copernicus and learn from him. Rheticus stayed with him for two years and published Narratio prima (First Account), outlining the essence of Copernicus' theory. The book was very well received. After this, Rheticus convinced Copernicus to have De revolutionibus published. However, legend has it, that Copernicus died the very day the first printed copy of De revolutionibus was placed in his hands. He is said to have awoken from a stroke-induced coma, looked at his book, and then died peacefully.

The Google doodle depicts the known planets of the time - Sun, Mercury, Venus, Earth, Mars, Mars, Jupiter and Saturn - revolving around the Sun, while the Moon revolves around the Earth. This is solar system as described in De revolutionibus.


أقرأ ايضا .. قد يعجبك :

من مواضيعى فى المنتدى

بالفيديو أداء عبد العزيز الشريف في برنامج آراب أيدول الموسم الثالث اليوم السبت 6-9-2014
موعد وتوقيت عرض مسلسلات قناة mbc مصر لشهر اغسطس 2014
صور جيني اسبر لوك جديد بالزي العسكري 2013 - صور جيني اسبر 2013
مشاهدة مسلسل يا مال الشام الحلقة 6 كاملة
صور غادة عبد الرازق في شهر عسل جديد مع زوجها محمد فودة 2013
تحميل لعبة سباق سيارات الفورميلا 1 Red Bull AR Reloaded لأجهزة الاندرويد
تحميل نغمات عيد الفطر 2013 mp3
فيديو قديم جدا لقناة mbc سنة 1995


أدوات الموضوع



الساعة الآن 11:12 PM.


Powered by vBulletin Version 3.8.7
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd
Support: منتديات دريم بوكس