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المواضيع الأخيرةمنتدى لطفي الياسيني سلم ع غـزة اخوتـي الشجعـان / اللواء الدكتور لطفي الياسيني الشهيد الحي حارس الأقصىFeb. 02, 2016   	   A Heritage to Be Proud Of  Clay tablets reveal Babylonians discovered astronomical geometry 1,400 years before Europeans      The medieval mathematicians of Oxford, toiling in torchlight in a land ravaged by plague, managed to invent a I_icon_minitimeاليوم في 13:58 من طرفمنتدى لطفي الياسينيجنود الاحتلال يغتصبون امراة حامل في مشفى الشفاء بغزة / د. لطفي الياسينيFeb. 02, 2016   	   A Heritage to Be Proud Of  Clay tablets reveal Babylonians discovered astronomical geometry 1,400 years before Europeans      The medieval mathematicians of Oxford, toiling in torchlight in a land ravaged by plague, managed to invent a I_icon_minitimeاليوم في 13:29 من طرفمنتدى لطفي الياسينيجريدة المساءFeb. 02, 2016   	   A Heritage to Be Proud Of  Clay tablets reveal Babylonians discovered astronomical geometry 1,400 years before Europeans      The medieval mathematicians of Oxford, toiling in torchlight in a land ravaged by plague, managed to invent a I_icon_minitimeاليوم في 11:13 من طرفمنتدى لطفي الياسينيمحمد الضيف يدعو للزحف "الآن" نحو فلسطينFeb. 02, 2016   	   A Heritage to Be Proud Of  Clay tablets reveal Babylonians discovered astronomical geometry 1,400 years before Europeans      The medieval mathematicians of Oxford, toiling in torchlight in a land ravaged by plague, managed to invent a I_icon_minitimeاليوم في 9:25 من طرفمنتدى لطفي الياسينيجريدة صباح الخيرFeb. 02, 2016   	   A Heritage to Be Proud Of  Clay tablets reveal Babylonians discovered astronomical geometry 1,400 years before Europeans      The medieval mathematicians of Oxford, toiling in torchlight in a land ravaged by plague, managed to invent a I_icon_minitimeاليوم في 8:56 من طرفمنتدى لطفي الياسينيEn muslim beder inde i kirken i Spanien A Muslim prays inside the church in Spain فبراير 22, 2024 Dette er en kirke i SpaniFeb. 02, 2016   	   A Heritage to Be Proud Of  Clay tablets reveal Babylonians discovered astronomical geometry 1,400 years before Europeans      The medieval mathematicians of Oxford, toiling in torchlight in a land ravaged by plague, managed to invent a I_icon_minitimeاليوم في 7:39 من طرفمنتدى لطفي الياسيني ابراج اليوم ابراج الغد تفسير الاحلام مقالات عن الابراج حظك اليوم حظك اليوم مع الابراج الحب أن أحبك ألف مرة ، وفي كل مرة أشعر أني أحبك لأول مرة - نزار قباني - توقعات الابراج وحظك اليوم الثلاثاء, 27 كانون الاول 2022 برج الحمل من 21 مارس إلى 20 إبريلFeb. 02, 2016   	   A Heritage to Be Proud Of  Clay tablets reveal Babylonians discovered astronomical geometry 1,400 years before Europeans      The medieval mathematicians of Oxford, toiling in torchlight in a land ravaged by plague, managed to invent a I_icon_minitimeاليوم في 7:37 من طرفمنتدى لطفي الياسيني الطيران المدني خدمة مجتمعية وسيادة وطنية : فارس الجواري* Feb. 02, 2016   	   A Heritage to Be Proud Of  Clay tablets reveal Babylonians discovered astronomical geometry 1,400 years before Europeans      The medieval mathematicians of Oxford, toiling in torchlight in a land ravaged by plague, managed to invent a I_icon_minitimeاليوم في 7:36 من طرفمنتدى لطفي الياسينيغضب في العراق من "قرار مفاجئ".. وتذكير بـ"إضراب عام" شل البلادFeb. 02, 2016   	   A Heritage to Be Proud Of  Clay tablets reveal Babylonians discovered astronomical geometry 1,400 years before Europeans      The medieval mathematicians of Oxford, toiling in torchlight in a land ravaged by plague, managed to invent a I_icon_minitimeاليوم في 7:35 من طرفمنتدى لطفي الياسينيغضب في العراق من "قرار مفاجئ".. وتذكير بـ"إضراب عام" شل البلادFeb. 02, 2016   	   A Heritage to Be Proud Of  Clay tablets reveal Babylonians discovered astronomical geometry 1,400 years before Europeans      The medieval mathematicians of Oxford, toiling in torchlight in a land ravaged by plague, managed to invent a I_icon_minitimeاليوم في 7:35 من طرف

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 Feb. 02, 2016 A Heritage to Be Proud Of Clay tablets reveal Babylonians discovered astronomical geometry 1,400 years before Europeans The medieval mathematicians of Oxford, toiling in torchlight in a land ravaged by plague, managed to invent a

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Feb. 02, 2016   	   A Heritage to Be Proud Of  Clay tablets reveal Babylonians discovered astronomical geometry 1,400 years before Europeans      The medieval mathematicians of Oxford, toiling in torchlight in a land ravaged by plague, managed to invent a Bookwo11
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Feb. 02, 2016   	   A Heritage to Be Proud Of  Clay tablets reveal Babylonians discovered astronomical geometry 1,400 years before Europeans      The medieval mathematicians of Oxford, toiling in torchlight in a land ravaged by plague, managed to invent a Empty
مُساهمةموضوع: Feb. 02, 2016 A Heritage to Be Proud Of Clay tablets reveal Babylonians discovered astronomical geometry 1,400 years before Europeans The medieval mathematicians of Oxford, toiling in torchlight in a land ravaged by plague, managed to invent a   Feb. 02, 2016   	   A Heritage to Be Proud Of  Clay tablets reveal Babylonians discovered astronomical geometry 1,400 years before Europeans      The medieval mathematicians of Oxford, toiling in torchlight in a land ravaged by plague, managed to invent a I_icon_minitimeالأربعاء 3 فبراير 2016 - 2:23

Feb. 02, 2016
  
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Clay tablets reveal Babylonians discovered astronomical geometry 1,400 years before Europeans
Feb. 02, 2016   	   A Heritage to Be Proud Of  Clay tablets reveal Babylonians discovered astronomical geometry 1,400 years before Europeans      The medieval mathematicians of Oxford, toiling in torchlight in a land ravaged by plague, managed to invent a 02_E4_5

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The medieval mathematicians of Oxford, toiling in torchlight in a land ravaged by plague, managed to invent a simple form of calculus that could be used to track the motion of heavenly bodies. But now a scholar studying ancient clay tablets suggests that the Babylonians got there first, and by at least 1,400 years.
The astronomers of Babylonia, scratching tiny marks in soft clay, used surprisingly sophisticated geometry to calculate the orbit of what they called the White Star — the planet Jupiter.
These tablets are quite incomprehensible to the untrained eye. Thousands of clay tablets — many unearthed in the 19th century by adventurers hoping to build museum collections in Europe, the United States and elsewhere — remain undeciphered.
 
Feb. 02, 2016   	   A Heritage to Be Proud Of  Clay tablets reveal Babylonians discovered astronomical geometry 1,400 years before Europeans      The medieval mathematicians of Oxford, toiling in torchlight in a land ravaged by plague, managed to invent a 02_E4_6
Text A. (Mathieu Ossendrijver/Trustees of the British Museum)
But they are fertile ground for Mathieu Ossendrijver of Humboldt University in Berlin, whose remarkable findings were published Thursday in the journal Science. Ossendrijver is an astrophysicist who became an expert in the history of ancient science.
For a number of years he has puzzled over four particular Babylonian tablets housed in the British Museum in London.

“I couldn’t understand what they were about. I couldn’t understand anything about them, neither did anyone else. I could only see that they dealt with geometrical stuff,” he said this week in a phone interview from Germany.
Then one day in late 2014, a retired Assyriologist gave him some black-and-white photographs of tablets stored at the museum. Ossendrijver took notice of one of them, just two inches across and two inches high. This rounded object, which he scrutinized in person in September 2015, proved to be a kind of Rosetta Stone.
Officially named BM 40054 by the museum, and dubbed Text A by Ossendrijver, the little tablet had markings that served as a kind of abbreviation of a longer calculation that looked familiar to him. By comparing Text A to the four previously mysterious tablets, he was able to decode what was going on: This was all about Jupiter. The five tablets computed the predictable motion of Jupiter relative to the other planets and the distant stars.
“This tablet contains numbers and computations, additions, divisions, multiplications. It doesn’t actually mention Jupiter. It’s a highly abbreviated version of a more complete computation that I already knew from five, six, seven other tablets,” he said.
Most strikingly, the methodology for those computations used techniques that resembled the astronomical geometry developed in the 14th century at Oxford’s Merton College. The tablets have been authoritatively dated to a period from 350 B.C. to 50 B.C.

 
Feb. 02, 2016   	   A Heritage to Be Proud Of  Clay tablets reveal Babylonians discovered astronomical geometry 1,400 years before Europeans      The medieval mathematicians of Oxford, toiling in torchlight in a land ravaged by plague, managed to invent a 02_E4_7
Text B. (Mathieu Ossendrijver/Trustees of the British Museum)
“This discovery shows that there is still more to learn about ancient science, and that every new thing we do learn demonstrates just how clever the ancient astronomers were,” said John Steele, a Brown University professor who specializes in ancient astronomy and was not involved in the new study.
The people of Mesopotamia — what is now Iraq — developed mathematics about 5,000 years ago. Among them were the Babylonians who wrote in cunieform script and, over time, adopted a sexagesimal (base 60) numbering system. Early mathematics was essentially a form of counting, and the things being counted were mostly sheep and the like.
Mathematics progressed, as did the sharing of knowledge in the wake of Alexander the Great’s conquering journeys across Asia. The ancient Greek astronomer Aristarchus of Samos argued for a heliocentric universe — one in which the Earth orbited the sun, contrary to what seems to be the case when one looks at the sky. That view was shared by another astronomer, possibly Greek as well, who lived in Mesopotamia on the Tigris River and was known as Seleucus of Seleucia.
But Ossendrijver said nothing in the newly decoded computations suggests that the ancient scientist or scientists who etched the tablets understood that heliocentric model. The calculations merely describe Jupiter’s motion over time as it appears to speed up and slow down in its journey across the night sky.
Those calculations are done in a surprisingly abstract way — the same way the Oxford mathematicians would do them a millennium and a half later.
“It’s geometry, which is itself old, but it’s applied in a completely new way, not to fields, or something that lives in real space, but to something that exists in completely abstract space,” Ossendrijver said. “Anybody who studies physics would be reminded of integral calculus.”
Which was developed in Europe in 1350, according to historians.
“In Babylonia, between 350 and 50 B.C., scholars, or maybe one very clever guy, came up with the idea of drawing graphs of the velocity of a planet against time, and computing the area of this graph — of doing a kind of computation that seems to be thoroughly modern, that is not found until 1350,” Ossendrijver said.
Alexander Jones, a professor at New York University’s Institute for the Study of the Ancient World, praised Ossendrijver’s research, which he said shows the “revolutionary brilliance of the unknown Mesopotamian scholars who constructed Babylonian mathematical astronomy during the second half of the first millennium BC.”
Anthropologist Alexander Nagel of the Smithsonian’s National Museum of Natural History, after reviewing the new paper, wrote in an email, “I think Mathieu’s article shows very well the complexities modern researchers encounter (and have to master) in understanding what immense knowledge the communities by the Euphrates Rivers in what is now Iraq had.”
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Feb. 02, 2016 A Heritage to Be Proud Of Clay tablets reveal Babylonians discovered astronomical geometry 1,400 years before Europeans The medieval mathematicians of Oxford, toiling in torchlight in a land ravaged by plague, managed to invent a , Feb. 02, 2016 A Heritage to Be Proud Of Clay tablets reveal Babylonians discovered astronomical geometry 1,400 years before Europeans The medieval mathematicians of Oxford, toiling in torchlight in a land ravaged by plague, managed to invent a , Feb. 02, 2016 A Heritage to Be Proud Of Clay tablets reveal Babylonians discovered astronomical geometry 1,400 years before Europeans The medieval mathematicians of Oxford, toiling in torchlight in a land ravaged by plague, managed to invent a ,Feb. 02, 2016 A Heritage to Be Proud Of Clay tablets reveal Babylonians discovered astronomical geometry 1,400 years before Europeans The medieval mathematicians of Oxford, toiling in torchlight in a land ravaged by plague, managed to invent a ,Feb. 02, 2016 A Heritage to Be Proud Of Clay tablets reveal Babylonians discovered astronomical geometry 1,400 years before Europeans The medieval mathematicians of Oxford, toiling in torchlight in a land ravaged by plague, managed to invent a , Feb. 02, 2016 A Heritage to Be Proud Of Clay tablets reveal Babylonians discovered astronomical geometry 1,400 years before Europeans The medieval mathematicians of Oxford, toiling in torchlight in a land ravaged by plague, managed to invent a
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