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Mediaeval Muslims made stunning math breakthrough
Scotsman ^ | 22-Feb-07 | Will Dunham

Posted on 02/22/2007 6:15:51 PM PST by xcamel

WASHINGTON (Reuters) - Magnificently sophisticated geometric patterns in mediaeval Islamic architecture indicate their designers achieved a mathematical breakthrough 500 years earlier than Western scholars, scientists said on Thursday.

By the 15th century, decorative tile patterns on these masterpieces of Islamic architecture reached such complexity that a small number boasted what seem to be "quasicrystalline" designs, Harvard University's Peter Lu and Princeton University's Paul Steinhardt wrote in the journal Science.

Only in the 1970s did British mathematician and cosmologist Roger Penrose become the first to describe these geometric designs in the West. Quasicrystalline patterns comprise a set of interlocking units whose pattern never repeats, even when extended infinitely in all directions, and possess a special form of symmetry.

"Oh, it's absolutely stunning," Lu said in an interview. "They made tilings that reflect mathematics that were so sophisticated that we didn't figure it out until the last 20 or 30 years."

Lu and Steinhardt in particular cite designs on the Darb-i Imam shrine in Isfahan, Iran, built in 1453.

Islamic tradition has frowned upon pictorial representations in artwork. Mosques and other grand buildings erected by Islamic architects throughout the Middle East, Central Asia and elsewhere often are wrapped in rich, intricate tile designs setting out elaborate geometric patterns.

The walls of many mediaeval Islamic structures display sumptuous geometric star-and-polygon patterns. The research indicated that by 1200 an important breakthrough had occurred in Islamic mathematics and design, as illustrated by these geometric designs.

"You can go through and see the evolution of increasing geometric sophistication. So they start out with simple patterns, and they get more complex" over time, Lu added.

ISLAMIC ACHIEVEMENTS

While Europe was mired in the Dark Ages, Islamic culture flourished beginning in the 7th century, with achievements over numerous centuries in mathematics, medicine, engineering, ceramics, art, textiles, architecture and other areas.

Lu said the new revelations suggest Islamic culture was even more advanced than previously thought.

While travelling in Uzbekistan, Lu said, he noticed a 16th century Islamic building with decagonal motif tiling, arousing his curiosity as to the existence of quasicrystalline Islamic tilings.

The sophistication of the patterns used in Islamic architecture has intrigued scholars worldwide.

Emil Makovicky of the University of Copenhagen in Denmark in the 1990s noticed the relationship between these designs and a form of quasicrystalline designs. Makovicky was interested in particular in an 1197 tomb in Maragha, Iran.

Joshua Socolar, a Duke university physicist, said it is unclear whether the mediaeval Islamic artisans fully understood the mathematical properties of the patterns they were making.

"It leads you to wonder whether they kind of got lucky," Socolar said in an interview. "But the fact remains that the patterns are tantalizingly close to having the structure that Penrose discovered in the mid-70s."

"And it will be a lot of fun if somebody turns up bigger tilings that sort of make a more convincing case that they understood even more of the geometry than the present examples show," Socolar said.


TOPICS: Extended News; Miscellaneous
KEYWORDS: ggg; godsgravesglyphs; history; india; islam; math; muslims; uzbek
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To: edpc

It's also not even true. It's like saying that because the Egyptians knew that there were right triangles with sides of lengths 3, 4 and 5, they knew the Pythagorean theorem, in the sense of knowing it in full generality with a proof, centuries before Pythagoras. I've heard that claptrap spouted by 'multiculturalists' who want to claim with no basis that the Greeks got their culture from Africa.

What is true is that the Muslims, by conquering both the southern provinces of the Christian Roman Empire that had preserved classical Greek learning, including mathematics, and India, where the Hindus had made different advances in mathematics, were able to make a few advances, all of which were fairly obvious once one had digested both of the conquered cultures' mathematics.

As I pointed out in my last post, any finite tiling using 5 or 10 sided regular figures as major tiles will look a bit like a Penrose tiling. Claiming a 'mathematical breakthrough' on this basis is like equating a 3,4,5 right triangle with the Pythagorean theorem. Find a medieval Arabic text explaining how a pattern with local 5-fold symmetries can be extended without repetition to an arbitarily large region, and you can claim they beat Penrose by 500 year. A bit of flooring or wall tiles with pentagons or decagons is a doodle, not a mathematical breakthrough.


201 posted on 02/22/2007 9:15:45 PM PST by The_Reader_David (And when they behead your own people in the wars which are to come, then you will know. . .)
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whoops! sorry...


202 posted on 02/22/2007 9:16:05 PM PST by Fred Nerks (Read THE LIFE OF MUHAMMAD free pdf download. Link on my bio page.)
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To: omnivore
. Using zero or "cyphering" as it was called, was of course using demonic symbology. The only people who would do that were considered heretics, suitable for non-anatomically-instructive disassembly with red hot pincers under the auspices of people who knew "zero" about math, but were Theologically Correct.

Please provide proof of that statement--and I'd prefer a primary source of some kind. It smells of BS revisionist history.
203 posted on 02/22/2007 9:22:47 PM PST by Antoninus ("For some, the conservative constituency is an inconvenience. For me, it's my hope." -Duncan Hunter)
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To: Jedi Master Pikachu
As the article specifically mentions, the buildings are covered in patterns because of Islamic restrictions on making artwork depicting living things.

Simplistic misconception.

The "prohibition" depends on which Muslims, where, and during what time period.

I've seen stunningly beautiful collections very old Islamic glass animal and bird figures in musseums. Corning Museum of Glass has one such collection.

Anyone can find examples of Muslim figural art if they just bother to search.

204 posted on 02/22/2007 9:29:43 PM PST by ApplegateRanch (Islam: a Satanically Transmitted Disease, spread by unprotected intimate contact with the Koranus.)
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To: xcamel

Gee, and not one mention of the fact that the people in question were in fact Greco/Roman 700AD.


205 posted on 02/22/2007 9:31:38 PM PST by jpsb
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To: jpsb
For what it's worth and to add some context to this debate, the following passage is taken from The Chronicle of John, Bishop of Nikiu who was a near contemporary of the Arab conquest of Egypt in the 630s AD:

=========================

CHAPTER CXXI. 1. And Abba Benjamin, the patriarch of the Egyptians, returned to the city of Alexandria in the thirteenth year after his flight from the Romans, and he went to the Churches, and inspected all of them. 2. And every one said : 'This expulsion (of the Romans) and victory of the Moslem is due to the wickedness of the emperor Heraclius and his persecution of the Orthodox through the patriarch Cyrus. This was the cause of the ruin of the Romans and the subjugation of Egypt by the Moslem.

3. And 'Amr became stronger every day in every field of his activity. And he exacted the taxes which had been determined upon, but he took none of the property of the Churches, and he committed no act of spoliation or plunder, and he preserved them throughout all his days. And when he seized the city of Alexandria, he had the canal drained in accordance with the instructions given by the apostate Theodore. 4. And he increased the taxes to the extent of twenty-two batr of gold till all the people hid themselves owing to the greatness of the tribulation, and could not find the wherewithal to pay. And in the second year of the lunar cycle came John of the city of Damietta.

5. He had been appointed by the governor Theodore, and had lent his aid to the Moslem in order to prevent their destruction of the city. Now he had been appointed prefect of the city of Alexandria when 'Amr entered it, And this John had compassion on the poor, and gave generously to them out of his possessions. And seeing their affliction he had mercy upon them, and wept over their lot. 6. 'Amr deposed Menas and appointed John in his stead. |201 Now this Menas had increased the taxes of the city, which 'Amr had fixed at 22,000 gold dinars, and the sum which the apostate Menas got together was 32,057 gold dinars—he appointed for the Moslem.308 7. And none could recount the mourning and lamentation which took place in that city: they even gave their children in exchange for the great sums which they had to pay monthly. And they had none to help them, and God destroyed their hopes, and delivered the Christians into the hands of their enemies. 8. But the strong beneficence of God will put to shame those who grieve us, and He will make His love for man to triumph over our sins, and bring to naught the evil purposes of those who afflict us, who would not that the King of Kings and Lord of Lords should reign over them, (even) Jesus Christ our true God. 9. As for those wicked slaves, He will destroy them in evil fashion: as saith the holy Gospel: 'As for Mine enemies who would not that I should reign over them, bring them unto Me.' 10. And now many of the Egyptians who had been false Christians denied the holy orthodox faith and lifegiving baptism, and embraced the religion of the Moslem, the enemies of God, and accepted the detestable doctrine of the beast, this is, Mohammed, and they erred together with those idolaters, and took arms in their hands and fought against the Christians. 11. And one of them, named John, the Chalcedonian of the Convent of Sinai, embraced the faith of Islam, and quitting his monk's habit he took up the sword, and persecuted the Christians who were faithful to our Lord Jesus Christ.

=========================

Despite the propaganda, the Arabs were not benign conquerors. There's a reason why Egypt is now 99% Muslim. And it's not because the Arabs used "logic and reason" to persuade...
206 posted on 02/22/2007 9:43:39 PM PST by Antoninus ("For some, the conservative constituency is an inconvenience. For me, it's my hope." -Duncan Hunter)
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To: Free Vulcan

That's the great lie--Gibbon, wanting to claim Romanitas for the 'Enlightenment' against Christianity, and all the Muslim apologists now, all want us to forget that there was a Christian civilization that was never overrun by Germanic barbarians, from which the Muslims took most of their learning, from which they copied such civilized ways as they adopted, and which in the end they destroyed.

The name 'Byzantine Empire' is itself part of the lie.

It was the Roman Empire, its capital moved to Constantinople, New Rome, by Constantine, and it preserved classical learning, mathematics included, until its fall. The Caliph of Damascus once offered a great sum of money to the Emperor to let one Leo the Mathematician visit his court--the Emperor declined. Its scholars fleeing the advance of the Muslims, and settling in the most Roman regions of Italy--not Rome itself, but the Veneto--were the trigger for the Rennaisance.

In practical Roman fashion, the few advances in mathematics made during the Christian era in the Roman Empire were related to engineering: Anthemius of Tralles, one of the architects of Justinian's Hagia Sophia, wrote treatises on conic sections, giving some advances on Apollonius and Archimedes, including describing the focal properties of the parabola, and developing the method of drawing ellipses with two pins and a loops of string.

Of course, no one goes on about the advances of 'Byzantine mathematics' (and rightly so, just as with the Muslims, there really weren't very many), and its history is largely forgotten except among us Orthodox, and quirky academic 'Byzantinists' (a lot of whom eventually convert to Orthodoxy).


207 posted on 02/22/2007 9:45:52 PM PST by The_Reader_David (And when they behead your own people in the wars which are to come, then you will know. . .)
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To: Fred Nerks

That's a really interesting letter. Did you write it?


208 posted on 02/22/2007 9:47:37 PM PST by Ramius ([sip])
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To: Antoninus

90% The Copts holding out in their ancient homeland are still 9% of the population, with other Christians (mostly Greek Orthodox Patriarchate of Alexandria) constituting another 1%.

Don't overstate the success of the minions of the false prophet Mohammed.


209 posted on 02/22/2007 9:50:44 PM PST by The_Reader_David (And when they behead your own people in the wars which are to come, then you will know. . .)
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To: nycgal

Yes, should they actually succeed in taking over the globe, they will bring themselves down in debauchery and ruin.


210 posted on 02/22/2007 9:51:26 PM PST by HiTech RedNeck
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To: xcamel

From sacred geometry we see a lot of math developing from geometric construction. "Square root" for example, and such things as the square root of 3 found in the vesica pisces, a symbol of Christ. We also have Pythagoras and his "unutterable" numbers, which we call irrational. Pythagoras definitely knew quite a bit of the math involved and we know he knew.

That the geometry is connected to math and/or math derived from geometry construction we know from the writing and history. We lack this in the case of these Islamic constructions. So it's, so far, a leap to say they had the math figured out, when the designs can be explained by geometric construction (they also knew Euclid) based on the beginning polygon.

Or, as the article states:

"Some scientists are skeptical. Craig Kaplan, a computer scientist who studies star patterns made by Islamic architects, says that it has not yet been proven that medieval artisans understood the mathematics of their intricate designs."

Thanks for the post, it's an interesting subject.


211 posted on 02/22/2007 9:52:01 PM PST by D-fendr
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To: Ramius

No. It was written by Peter Betbasoo. Look here:

http://www.aina.org/aol/peter/brief.htm


212 posted on 02/22/2007 9:52:41 PM PST by Fred Nerks (Read THE LIFE OF MUHAMMAD free pdf download. Link on my bio page.)
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To: xcamel
Mediaeval Muslims made stunning math breakthrough

Joshua Socolar, a Duke university physicist, said it is unclear whether the mediaeval Islamic artisans fully understood the mathematical properties of the patterns they were making.


So which was it? Were they ultrageniuses or were they making random chicken scratches?


I for one question the ability of a middle ages mohammedan to do more than parrot what he stole from other cultures, but I am a little biased I'll admit.
213 posted on 02/22/2007 9:54:15 PM PST by Dr.Zoidberg (Mohammedanism - Bringing you only the best of the 6th century for fourteen hundred years.)
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To: The_Reader_David
90% The Copts holding out in their ancient homeland are still 9% of the population, with other Christians (mostly Greek Orthodox Patriarchate of Alexandria) constituting another 1%. Don't overstate the success of the minions of the false prophet Mohammed.

I had heard lower numbers than that for Christians in Egypt, but I defer to your superior knowledge on the subject.

Good post above, btw.
214 posted on 02/22/2007 9:55:53 PM PST by Antoninus ("For some, the conservative constituency is an inconvenience. For me, it's my hope." -Duncan Hunter)
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To: Fred Nerks

superb. Thanks.


215 posted on 02/22/2007 9:57:17 PM PST by Ramius ([sip])
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To: Fred Nerks

How does the history of Assyrians then mesh with that of the Kurds? Seems (to my uneducated eye) to be pretty much the same territory?


216 posted on 02/22/2007 10:01:40 PM PST by Ramius ([sip])
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To: xcamel
Since the article had no pictures....

Google Images

misspelled
217 posted on 02/22/2007 10:09:14 PM PST by GoLightly
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To: Ramius
How does the history of Assyrians then mesh with that of the Kurds? Seems (to my uneducated eye) to be pretty much the same territory?

Not exactly. The folks considered Assyrians in the article quoted above, would have been the successors of the hellenized Seleucid Kingdom and subsequently the Christian Syrian Romans who had their principle city at Antioch. The Kurds inhabited part of the area then known as Greater Armenia or Upper Mesopotamia near Lake Van.

I'm sure someone will correct me if my geography is off.
218 posted on 02/22/2007 10:22:13 PM PST by Antoninus ("For some, the conservative constituency is an inconvenience. For me, it's my hope." -Duncan Hunter)
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To: Ramius
http://www.xs4all.nl/~tank/kurdish/htdocs/announce/KSF.html

The Kurdish people compose one of the ancient nations of the Middle East. Kurdistan, the land of the Kurds, is spread among several modern states: northwestern Iran, northern Iraq, northeastern Syria, southeastern Turkey, and small parts of Armenia.

Photobucket - Video and Image Hosting

219 posted on 02/22/2007 10:27:08 PM PST by Fred Nerks (Read THE LIFE OF MUHAMMAD free pdf download. Link on my bio page.)
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To: xcamel
While Europe was mired in the Dark Ages, Islamic culture flourished beginning in the 7th century, with achievements over numerous centuries in mathematics, medicine, engineering, ceramics, art, textiles, architecture and other areas.

The so-called Dark Ages weren't that dark. But the reason for the darkness was attacks against Europe by barbarians of various stripes (including Muslims). Besides, most of Islamic culture and achievements in the sciences and arts were actually accomplishments of individuals of nations and cultures simply taken over by Islamic conquest. They did not come about as a sort of natural outgrowth of some inherent propensity toward intellectual excellence in Islam.
220 posted on 02/22/2007 10:31:59 PM PST by aruanan
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