Rabu, 24 Juni 2015

(803-873) Ahmad ibn Musa ibn Shakir

Ahmad ibn Musa ibn Shakir




Designers Fountain In historical records of Islam, it was revealed that the Muslims became the first people to use the media in the design of a garden water. And utilizing aqueous media to embellish the room, whether at home, mosques, palaces, and public parks. The designer of the fountain are various forms of Banu Musa brothers lived in the 9th century. They are scientists who are very active activities in Bayt al-Hikmah, Baghdad, Iraq. It is a place famous for its library and translation of a variety of science. Banu Musa brothers are the sons of Musa ibn Shakir, who worked as an astrologer Caliph al-Ma'mun. 



At the time of Musa ibn Shakir died, he left his children who are still young in the environment of the caliphate. Banu Musa consists of three brothers. The first is Abu Ja'far Muhammad ibn Musa ibn Shakir (803-873). He has particular expertise in the field of astronomy, engineering, geometry, and physics. Then, there is also Ahmad ibn Musa ibn Shakir (803-873) who has special expertise in the field of engineering and mechanics. In addition, there is also Al-Hasan ibn Musa ibn Shakir (810-873). 




He also has expertise that is highly mastered, namely the fields of engineering and geometry. Kitab al-Hiyal or Book Tool Mechanic is a valuable thing left Banu Musa brothers. Through this book, they provide a useful legacy for the development of engineering and architecture in the Islamic world. In his book, Banu Musa brothers created a design of a fountain in the manufacture of a variety of techniques and tricks. They apply a variety of principles of geometry and physics to create a fountain. The book also contains seven model or design of the fountain.

Law of Universal Gravitation World know Sir Isaac Newton (Principia, 1687) as the first inventor of the "law of universal gravitation" but actually long before Newton, scientists of Islam which is also one of the Banu Musa brothers named Abu Ja'far Muhammad ibn Musa ibn Shakir, who lived between 803-873 years in Baghdad, Iraq. has created the hypothesis that there is a gigantic Visit the movement of objects in space. Abu Ja'far Muhammad, who has particular expertise in the field of astronomy, engineering, geometry, and physics. in Kitab al-Hiyal, giving an explanation of the movement of the ball. In the book, he also wrote his discoveries about the celestial objects that become subject to the laws of physics of the earth. Other works of Abu Ja'far Muhammad is the discussion about the movement of stars and the law of attraction. He revealed the presence of the force of attraction between the heavenly bodies. It is proved that Newton's law of gravity applies universally.

810 Abbas Qasim Ibn Firnas

Ibnu Firnas
Aircraft Ibn Firnas and sketches of flying machines
Abbas Qasim Ibn Firnas (in the West known as Armen Firman) was born in 810 AD in Izn-Rand Onda, Al-Andalus (now Ronda, Spain). He is known to experts in the various disciplines, in addition to a chemist, he was also a humanist, inventor, musician, physicist, poet, and a technology activist. This man of Moroccan descent live in the present reign of the Umayyad caliph in Andalusia (Spain). In the year 852, under the reign of Caliph Abdul Rahman II, Ibn Firnas decided to test 'fly' from the minaret Mezquita in Cordoba by using some sort of wings of wood propped cloak. Artificial wings turned out to make it float while in the air and slow the fall, he also managed to land even with minor injuries. The tools used Ibn Firnas is then known as the world's first parachute. In the year 875, when the age of 65 years, Ibn Firnas designing and making a flying machine capable of carrying humans. Once the final version has been established, he deliberately inviting people to participate witnessed Cordoba historical cost in Jabal Al-'Arus (Mount of the Bride) in the Rusafa district, near Cordoba. The flight was witnessed by the community was fairly successful. Unfortunately, because of the way sliding unfavorable, Ibn Firnas slammed into the ground along with homemade gliders. He also suffered a severe back injury. Injury that makes Ibn Firnas powerless to do next test. Abbas Ibn Firnas died in the year 888, in a state struggling to heal a back injury suffered as a result of failure to test homemade gliders. Although experiments to fly using a pair of wings from feathers and wood frame does not work perfectly, but the innovative ideas of Ibn Firnas then studied Roger Bacon 500 years after the laying Firnas basic theories plane. Then, about 200 years after Bacon (700 years pascaujicoba Ibn Firnas), then the concepts and theories developed aircraft.
Source: http://www.defence.pk/forums/military-photos-multimedia/41123-first-flight-remembring-abbas-ibn-firnas.html#ixzz2H4EznTn9

Pesawat Terbang Ibnu Firnas dan Sketsa mesin terbangnya Abbas Qasim Ibnu Firnas (di Barat dikenal dengan nama Armen Firman) dilahirkan pada tahun 810 Masehi di Izn-Rand Onda, Al-Andalus (kini Ronda, Spanyol). Dia dikenal ahli dalam berbagai disiplin ilmu, selain seorang ahli kimia, ia juga seorang humanis, penemu, musisi, ahli ilmu alam, penulis puisi, dan seorang penggiat teknologi. Pria keturunan Maroko ini hidup pada saat pemerintahan Khalifah Umayyah di Andalusia (Spanyol). Pada tahun 852, di bawah pemerintahan Khalifah Abdul Rahman II, Ibnu Firnas memutuskan untuk melakukan ujicoba ‘terbang’ dari menara Masjid Mezquita di Cordoba dengan menggunakan semacam sayap dari jubah yang disangga kayu. Sayap buatan itu ternyata membuatnya melayang sebentar di udara dan memperlambat jatuhnya, ia pun berhasil mendarat walau dengan cedera ringan. Alat yang digunakan Ibnu Firnas inilah yang kemudian dikenal sebagai parasut pertama di dunia. Pada tahun 875, saat usianya menginjak 65 tahun, Ibnu Firnas merancang dan membuat sebuah mesin terbang yang mampu membawa manusia. Setelah versi finalnya berhasil dibuat, ia sengaja mengundang orang-orang Cordoba untuk turut menyaksikan penerbangan bersejarahnya di Jabal Al-‘Arus (Mount of the Bride) di kawasan Rusafa, dekat Cordoba. Penerbangan yang disaksikan secara luas oleh masyarakat itu terbilang sangat sukses. Sayangnya, karena cara meluncur yang kurang baik, Ibnu Firnas terhempas ke tanah bersama pesawat layang buatannya. Dia pun mengalami cedera punggung yang sangat parah. Cederanya inilah yang membuat Ibnu Firnas tak berdaya untuk melakukan ujicoba berikutnya. Abbas Ibnu Firnas wafat pada tahun 888, dalam keadaan berjuang menyembuhkan cedera punggung yang diderita akibat kegagalan melakukan ujicoba pesawat layang buatannya. Walaupun percobaan terbang menggunakan sepasang sayap dari bulu dan rangka kayu tidak berhasil dengan sempurna, namun gagasan inovatif Ibnu Firnas kemudian dipelajari Roger Bacon 500 tahun setelah Firnas meletakkan teori-teori dasar pesawat terbangnya. Kemudian sekitar 200 tahun setelah Bacon (700 tahun pascaujicoba Ibnu Firnas), barulah konsep dan teori pesawat terbang dikembangkan.


Al Biruni, inspired by the teachings of Ar Razi, who is so much to contribute in medicine and pharmacy, and then he sort of Ar Razi findings in the context of the time and type of discovery.
The Significance of compilation Al Biruni was able to convince and improve various responses skewed on Ar Razi, to develop their knowledge to Europe through Byzantium. And he did hold a discussion and defense of various denials and align the various scientific understood until then. He raised writing Ar Razi Shukuk 'ala Nazariyat jalinus, with repair and straighten the various understanding of medicine, psychology, concepts and theories of healing as a result of a spontaneous outburst Galenius (Greek philosopher = Galenius in Arabic Jalinus), at the time it gets tough challenge of society. As motivated to find answers to the challenges experienced by Galenius, he tried to find the translation and verification through its science. Conveyed to him that Galenius less successful because too confident and they lack scientific support that time to bring towards failure. The process of recording less support and Galenius just excited to show new knowledge without the support process and test scientific evidence. This alignment is done Ar Razi, became the basis for what evidentiary support Jalinus (Galenius) supported by a wide range of references and proof test is applicable.
As a professional, Ar Razi made a lot of progress in the Islamic alternative to medicine and psychology. He dared to bring medicine and psychology the scientific direction, to dare to challenge the physician when it is based only on knowledge derived closed and without proof. The physician then uses only non-scientific method and critical patients recover without any indication of the likelihood of relapse and the introduction of dose, and even make disease grounds as something supernatural when they could not cure him. Ar Razi educate the physicians that medical science and psychology as a science that is constantly evolving and always need adjustment supported by the development of knowledge and research and the latest information. In the medical books he has recorded three disease categories, namely; 1) which can be cured, 2) That might be cured and 3) that can not be cured. In his research he has been researching cancer, leprosy who believed that time can not be cured. Due to the controversy it conveys Ar Razi willing not to get the patient, as well as recognition awards fellow profession at that time.
Through the book Man la Yahduruhu, He provides dedication makes the book a way of healing, which serves as a guide for the people, especially the poor, and certain people who want to get protection and health response when remote or no physician. Furthermore, this book is the beginning of the history of pharmacy is equipped with the next issue, which beriisi of 36 chapters. In the book also described the procedure of healing through diet, and medication records and further details of the user who up to now become a reference pharmacist and should be available in pharmacies and drugstores and to lay in doing self-medication. Even in Bur book he edited Hour shorthand way of healing diseases and disease symptoms records that do not need to consult with a physician. While the special review diet and the effect of diet on health, he published the book Manafi 'al-Aghdhiyyah, including diet and its phases.
Other physician at the time of Ibn Masawayh write also about pharmacology and medical science with the approach followed by the exposition of the subject, which is not only pharmacology and medicine that are considered important, but knowledge of food, nutrition and culinary to be important to their health. Recognized by Ar Razi does it lead role and impact related benefits, until penelitianya He discovered alcohol and bahayan obtained from grape nectars. At that time he has been concluded as a result of alcohol use have an indication of the onset of epilepsy, paralysis, dementia symptoms, Chirosis, hepatitis, mental disorders, vision disorders, obesity (obesity) and impotence.
Research on the body's healing efforts of various diseases, he admits lack pahamannya on the influence of the soul to the body, but he continued to perform scientific observations and care for the continuity psychoterapy.
Still in his day, a pharmacist al-Mansuri and Tibb ar-Ruhani, (906-907) recognizes the difficulty of doing research between body and soul, but the recognition of Ar Razi has given archetype in the continuation of his research. Sajih Abu Mansur ibn Ishaq ibn Ahmad ibn Asad divide the 20 chapters the results Tibb ar-discuss the spiritual and objectively with Ar Razi on the subject in the know; and understanding patterns of human desires, human stimulation, pleasure, anger, pain, unconsciousness, memory loss, victory and death. That the real man is a creature that has a high level of complexity, have an appreciation of the various interests to psychotherapy and psychology as a whole and this is important in a series of human healing.
Compilation book al-Hawi fit-Tibb became the forerunner of medical encyclopedia that systematically describes various medical knowledge termasik various medical explanations ancient times, the development of Islamic dijaman physician. Despite the book has not been fully edited as Ar Razi trigger death, but his disciples who have mewarisimateria medica and healing arts and pharmaceuticals including dosage and toxicologi knowledge, has continued his completeness.
The book on the Islamic era until the end of the renaissance and medieval consistently become a reference of the pharmacists in giving prescriptions for curing disease. The entry of the various elements in the treatment of for example mineral instance vitriol, copper, mercury and arsenic salt, salmoniak, chalk, clay, coral, pearl, tar and bitumen was first performed by Ar Razi in doing chemoterapy. Similarly, he also recommends the use of opium in anesthesia techniques. Special diet books and healing with medicinal edited and finish by Ahmad b. Abi al-Ash'ath in his second Quwa al-Adwiyyah and al-Ghadhi wal-Mughtadhi in the year 965 AD
Quwa al-Adwiyyah book consists of three parts and mepaparkan the general rules and regulations in the response to treatment, is associated with a diet of herbs, minerals khewani and drug use. It is understood the time that the body itself produces the active substance for the prevention of diseases and plants can be used as a complement. The book is dedicated and explanations above for both pupil Mohammed bin Ayyub Ibn ath-Thallaj of Mosul, and Ahmad bin. Mohammed al-Baladi. Ibn Abi al-Ash'ath explanation in the book is mainly about the three principles relating to disease and health, endurance and indications of symptoms as well as other diseases in general.
The general rule regarding drugs described body treatment, symptoms and preventive efforts as well as the causes and side effects. In detail, he also explains in his book about the five principles associated with the cause of the disease and the effect on health, among others; the condition of the air around our place of rest and activity, body manifestations, infusion and evacuation as well as a variety of things that affect the body, as well as the impact of food and drink intake can affect the body's health.
The new way of simple treatment can be done by warming, compress (cooling), massage or drying. Stages of healing to do next through understanding pharmacology; which must be carried out by experts or who really understand. That time he has given the critics is a good physician is not oriented to income but it must be oriented towards the development of knowledge and successful cure.
Development of the anatomy and animals more developed by his student Ibn Abi al-Ash'ath. Associated with Psychoterapy has been learned about; consciousness and unconsciousness peeled into 6 chapters, among others, explained that sleep is a control function of the brain, which is associated with other organs. Kematianmerupakan bed and sleep two different things is the interaction of the brain (active motion) is coupled therein contemplation, memory (reminiscence) and imajinasi.bahkan in sleep he classifies three stages of sleep, namely; the early stages of sleep; sleep with a dream and deep sleep without dreams. Lately known Ibn Abi al-Ash'ath's gain medical knowledge also of Abu Mahir Musa bin Sayyar. A royal physician of King Adud ad-Dawla (983 M), which has managed to put together a medical kopendium Al Maliki or in the western hemisphere known as Liber Rigius. Eksiklopedi mentioned above consists of 12 chapters way of healing including theory and practice procedures for drug delivery. Also equipped with herbal treatment protocols, as well as through mineral khewani.
In conducting the treatment explained through a classification by age, sex, changes in the face, the sharpness of vision must be taken into consideration in conducting examination and healing patients.
Abu Raihan al-Biruni (also, Biruni, Al Biruni, born 5 September 973 - meninggal13 December 1048 at the age of 75 years) (Persian: ابوریحان بیرونی; Arabic: أبو الريحان البيروني) is a Persian mathematician, astronomer, physicist, scholar, encyclopedia writer, philosopher, traveler, historian, pharmacist and teacher, which greatly contributed to the fields of mathematics, philosophy, medicine.
Abu Raihan al-Biruni was born in Khawarazmi, Turkmenistan or Khiva in kawasanDanau Aral in Central Asia at that time located in the Persian empire. He studied mathematics and study stars of Abu Nasr Mansur.
Abu Raihan al-Biruni was a friend philosopher and drugs Abu Ali Al-Hussain Ibn Abdallah Ibn Sina / Avicenna, historian, philosopher and ethicist Ibn Miskawayh, at the university and science center founded by the son of Abu Al Abbas Ma ' Khawarazmshah mun. Abu Raihan al-Biruni also wander over to India by Mahmud of Ghazni and accompanied him in ketenteraannya there, studying languages, philosophy and religion and wrote a book about it. He also mastered several languages ​​including Greek, Syriac, and the Berber language, Sanskrit.
Al-Biruni wrote many books in Persian language (mother tongue) and Arabic.
Here are the works of Al-Biruni is:
• When the 17-year-old, he examined the latitude for Kath, Khwarazm, using solar maxima altitude.
• At the age of 22, he wrote some quick work, including a study of map projections, "Cartography", which termasukmetodologi to make projections hemisphere on a plane.
• At the age of 27, he has written a book called "Chronology" which refers to any work produced by him (now no more), including a book about the astrolabe, a book on the decimal system, four books on assessment star, and two books on history.
• He made a research to 6339.6 kilometer radius of the Earth (this result was repeated in the West in the 16th century).

The contribution of Muslim Geographers
A series of Muslim geographers have contributed to the development of earth sciences. Al-Kindi geographers recognized as meritorious as the first to introduce experiment in earth sciences. Meanwhile, Al-Biruni lined up as 'the father of geodesy' which has contributed to the geography and geology.
John J O'Connor and Edmund F Robertson wrote its recognition of the contribution of Al-Biruni in MacTutor History of Mathematics. According to them, '' Al-Biruni has donated an important contribution to the development of geography and geodesy. It was he who introduced the technique of earth and distance measurement using triangulation. ''
Al-Biruni who discovered the Earth reaches 6339.6 km radius. Until the 16th century AD, the West has not been able to measure the radius of the earth as did al-Biruni. Mr history of science, George Sarton, also recognizes the contribution of Muslim scholars in the development of geography and geology. '' We find in his writings metedo chemical research, a theory about the formation of iron. ''
One of the peculiarities that developed Muslim geographers is the emergence of bio-geography. It was driven by a number of Arabs in the era of the Caliphate were interested in distributing and classifying plants, animals, and the evolution of life. Muslim scholars tried to analyze various types of plants.

Muslim geographers in the Golden Age
1. Hisham al-Kalbi (8th century AD)
He was the first geographer in the history of Islam. Hisham was so popular with the deep study of the Arab region.
2. Musa Al-Khwarizmi (780 AD - 850 AD)
Mathematician who also geographers it revised the outlook Ptolemaues about geography. Together 70 twenty geographer, Al-Khwarizmi made the first map of the globe in the year 830 AD
3. Al-Ya'qubi (died 897 AD)
He wrote a geography book titled 'The countries' that are so popular with the study topografisnya.
4. Ibn Khordadbeh (820 AD - 912 AD)
He was a student of Al-Kindi who studies the streets in various provinces carefully and pour it into the book Al Masalik wa Al-Mamalik (Roads and the Kingdom).
5. Al-Dinawari (828 AD - 898 AD)
Muslim geographers who also has contributed to the development of the science of geography.
6. Hamdani (893 AD - 945 AD) Muslim Geographers 9th century AD that dedicated itself to developing geographies.
7. Ali al-Masudi (896 AD - 956 AD)
Full name Abul Hasan Ali Al-Ma'sudi. He studied the internal and external factors that influence the formation of the earth batubatuan with astonishing originality.
8. Ahmad ibn Fadlan (10th century AD)
He is a geographer who wrote an encyclopedia and a story of a trip to the Volga and the Caspian region.
9. Ahmad ibn Rustah (10th century AD)
Ibn Rustah is a geographer who wrote a huge encyclopedia of the geography. Al Balkhi Gives sizeable contribution in mapping the world. Al Kindi As well as oceanographers, he was also a scientist multitalented. As a physicist, optics, metallurgy, and even philosophy.
10. Al Istakhar II and Ibn Hawqal (10th century AD)
A major contribution in mapping the world.
11. Al-Idrisi (1099 AD)
Famous geographer of his time, which is also known as a zoologist.
12. Al Baghdadi (1162 M)
A leading Muslim geographers.
13. Abdul-Leteef Mawaffaq (1162 M)
In addition to experts in geography, he is also an expert treatment.

Al Biruni noted astronomer well as this one, to give my contribution in the field of astrology in the Renaissance. He has declared that the earth rotates on its axis. At that time, Al-Biruni also have estimated the size of the earth and correct the direction of Makkah scientifically from various directions in the world. From 150 the fruit of thought, 35 of them dedicated to the field of astronomy.
He is a Persian mathematician, astronomer, physicist, scholar, encyclopedist, philosopher, traveler, historian, pharmacist and teacher, which greatly contributed to the fields of mathematics, philosophy, medicine ...
The work of Al-Biruni more than 120 books.
His contributions to the field of mathematics namely:
The theoretical and practical arithmetic
summation series
Combinatorial analysis
rule number 3
Irrational numbers
comparison theory
definition of algebra
method of solving algebraic summation
Geometry
Theorem Archimedes
Angle triangle
Results keryanya addition to the field of mathematics, namely:
• Critical study of the words of India, whether to accept or reject reason (Arabic تحقيق ما للهند من مقولة معقولة في العقل أم مرذولة) - a summary of the religion and philosophy of India
• Remaining Signs of Past Century (Arabic الآثار الباقية عن القرون الخالية) - a comparative study of calendars of different cultures and different civilizations, linked to information about mathematics, astronomy, and history.
• Mas'udi Regulation (Arabic القانون المسعودي) - a book about Astronomy, Geography and Technical Expertise. This book is named Mas'ud, as his dedication to Mas'ud, son of Mahmud of Ghazni.
• Understanding Astrology (Arabic التفهيم لصناعة التنجيم) - questions and answers about mathematical models and astronomy book, in Arabic and Persian
• Pharmacy - about drugs and medicine
• Gems (Arabic الجماهر في معرفة الجواهر) about geology, minerals, and gems, dedicated to Mawdud son Mas'ud
• URL: (English) Al Beruni "On Stones" complete online text
• Astrolab
• A summary of history
• History of Mahmud of Ghazni and his father

His contributions to the field of mathematics namely:
The theoretical and practical arithmetic
summation series
Combinatorial analysis
rule number 3
Irrational numbers
comparison theory
definition of algebra
method of solving algebraic summation
Geometry
Theorem Archimedes
Angle triangle

Reference:
1. Biography in Dictionary of Scientific Biography (New York 1970-1990).
2. Biography in Encyclopaedia Britannica.
3. ES Kennedy, A commentary upon Biruni's "Kitab al-Amakin Tahdid": An
11th century Treatise on mathematical geography (Beirut, 1973).
4. IM Muminov (ed.), Al-Biruni and Ibn Sina: Correspondence (Russian) (Tashkent, 1973).
5. BA Rozenfel'd, MM Rozhanskaya and ZK Skolovskaya, Abu'l-65 Rayhan al-Biruni (973-1048) (Russian) (Moscow, 1973).
6. HU Sadykov, Biruni and his work on astronomy and mathematical geography (Russian) (Moscow, 1953).
7. HM Said (ed.), Al-Biruni commemorative volume: Proceedings of the International Congress held in Karachi, November 26-December 12, 1973 (Karachi, 1979).
8. SH Sirazdinov and GP Matvievskaja, al-Biruni and his mathematical
works (Russian) (Moscow, 1978).
9. F Zikrillaev, Al-Biruni's works on physics (Russian) (Tashkent, 1973).


820 Ahmad ibn Daud Al-Dinawari or Abu Hanifa




Al Dinawari or the full name of Ahmad ibn Daud Al-Dinawari or Abu Hanifa was born in the city Dinawari in the year 820 AD. He is an Islamic scholar known for one of his works were highly influential in the development of the science of botany, the book of Al Nabat. It contains descriptions on hundreds of species of plants and explanation of the various soil types, characteristics, quality, nature, and where the soil is good for planting.
His father named Abu Hanifa Ahmad ibn Dawood bin Wa nand. The Muslim scientists have little jak se mi nat already demonstrated its high against pe science knowledge. He studied fallow gam sciences, such as astronomy, mate Matika, and mechanics in Ishafan, Iran.
Ad-Dinawari Mr Botany of the Islamic world, when Islamic Agricultural Revolution rolling in the era of the Caliphate, the Mus lim engineers managed to achieve the progress that is so brilliantly in botany botanical alias. Mus lim botanists in the golden age of Islam mam pu showing his skills in agronomy, agroteknik, meteorology, climatology, hydrology, land tenure, and agricultural business management.
Not only that, the botanist and agricultural Muslims also have mastered a variety of other knowledge, such as ecology, agriculture, pedology, irrigation, and other farm support pengetahu late. That's thanks to the acquisition of knowledge, developed the Green Revolution of the Islamic world reached the pinnacle of success.
One Muslim engineer who became the brain behind the success of the Green Revolution was ad- Dinawari (828-896 AD). Toufic Fahd (1996), in his book titled Botany and Agriculture menabal the ad-Dinawari as the founder of the science of botany or grow-grow late in the Islamic world. Indeed, he was ordained as a father worthy of Botany.
Botany is the study sainti fik for plant life. Se like a branch of biology, botany sometimes referred to as the science of plants or plant biology. Botanical encompass a wide range of scientific disciplines that study of the structure, growth, breeding, me ta bolisme, development, yes pen kits, ecology, and evolution of plants. The engineer has written a book that is so amazing botanical pa da 9th century AD, entitled Kitab al-Nabat (Book Tumbuhtumbuhan).
In his book, ad-Dinawari mam pu explain about 637 kinds of ta nam's. '' Ad-wari Dina also boa has planted an evolution from mun to Culan until death, '' ung hood Taufic Fahd. Not only that, the engineers also investigated the growth phase of the plant, the production of flowers and fruit.
Indeed, ad-na ma ber complete Dinawari Abu Hanifa Ahmad ibn Dawood Dinawari. Engineers Persian origin was known as il muwan versatile. Aside from being a pioneering botanical, ad-Dinawari also known master a variety of sciences, such as astronomy, agriculture, metallurgy, geography, mathematics, and history.
Additionally, linguistics and tra sas also has caught the attention of an ad-Dinawari. To learn the language and literature, ad-Dinawari should move to two important cities in Iraq in the glory days of the Abbasid dynasty, namely Kufa and Bas rah. The Muslim scientists fen o- nal me that died on July 24, 896 AD in his hometown, Di na war. Ad-Dinawari name was taken from the city's birthplace and death.
Prof. MR Izady in his work entitled The 1100 Anniversary of Abu-Hanifa Dinawari said, at that time, the City Dinawar has emerged as a major city in South tan Kurds. Dinawar is located in a strategic area because the air is between the East and the West, known as the main line of international trade, the Silk Road. '' Up to now, the city was known as a producer of science wan and thinkers, such as ad-Dina wari, '' said Prof Izady.
According to historical records, ad-In Nawari are descendants of the Kurds. He is an Wanand keturun. Ad-Dinawari me rupakan second generation who embraced Islam. From the city, born also a ma ula and religious experts ber name Muham mad ibn Abdullah ibn Mihran Dinawari and grammarian named Abu-Ali ibn Ahmad ibn Jafar Badh Dinawari.
'' They are also there was a second generation who embraced Islam, '' said Prof Izady. Me nu rut him, until ki ni, pendu duk City Dinawar never forget the services and contri plugs supplied Abu Hanifa ad-Dinawari in expanding the science. Each ta hun, the city's public memperi ngati day Abu Hanifa In Nawari.
It is remarkable, a native of the city of Abu Hanifa Dinawari respect thanks to its contribution to the history and culture, '' firmly Prof Izady. One of the most important contributions were given ad-Dinawari for human civilization is the Kitab al-Nabat. That is why he is regarded as the inventor of Arabic botany.
He is also regarded as the first frame Mendis penu kusi the Kurdish sa bang. He peeling traces and history of the Kurds through bu Kunya titled Ansab al-Ak rad (Descendants Kurdish). Ad-Di na wari also known as the historian se. Ditu history ang works right in a book entitled Kitab al-Akhbar al-Tiwal (Book of Long Narratives). The book was wheezing passes traces of human life from pre-Islamic to the Islamic era.
Ad-Dinawari known as a world-class thinker. Modern scientists admire thoroughness, accuracy, and reliability of the Persian scientist. I wonder if the name is equated with Muslim scientists legend ris, such as Ibn Khaldun, which was known through his book entitled Al-Muqaddimah. Ad-Dinawari known by the breadth of his knowledge. Ad-Dinawari works that have been lost it can be found la gi in the work of other scientists. Ba menja many scientists in the pieces she thought se like refe Rensi and some are rewriting the book.
Renowned historian and ethnographer, Mas' udi, mengata right, Ibn Qutayba Dina has been copied wari Orientation Books Per bin hand (Book of Astral Orientati ounces) of Abu Hanifa into his work. In the field of astronomy, ad-Dinawari figure was so respected and dika gumi. He is known as tro nom se as a great man of Persian origin who discovered me meda Galaxy Andro.
Historian B Lewin in his biography of Abu Hanifa ad-In Nawari said the younger generation should follow the example of the Mus lim wan science. One of the interesting things of ad-Dinawari is the accuracy and thoroughness while conducting research. One again, we find such a great Muslim figures from the golden era of Islam. A scientist who has never forgotten Dinawar City community. Every year, the people of the city to celebrate the death of Abu Ha Nifa ad-Dinawari. The spirit and the struggle of his life remains an diles traction. That is why Dinawar into town producing thinkers and scientists.
The contribution of scientists Botany
In the 9th century AD, ad-Dinawari have found the science of botanical plants alias. He peeled and dissected botany through his work Kitab al-Nabat (Book of Herbs), which consists of six volumes. Unfortunately, some volumes have been extinct, only the third and fifth volume remaining. Even so, the sixth volume of his book that has become part of the reconstruction base in excerpts of his latest work. In his book, ad-Dinawari outlines around 637 types of plants. The book was written in Arabic.
The scientist explains the various types of plants that met from sin letters to yes. Not only that, he also discusses the evolution of plants from growing / life to death, an explanation stages of plant growth, and produce fruit and flowers. It became the main source of plants and classification analysis (morphology), the morphology of the science of soil and water. In addition, it is also a phenomenal book became the most complete grammatical treatise in the names of the plants.
Astronomy and Meteorology section of his book on plants also outlines the role of astronomy and meteorology Islam in agriculture. He was able to determine the start of the season with such natural phenomena. Other natural phenomena, such as storms, thunder, lightning, snow, flooding, valleys, rivers, lakes, sumursumur, and other water sources studied and discussed. All of it is used for agricultural purposes.
Earth Sciences Section of books on plants belonging to the ad-Dinawari also outlines the earth sciences in the context of agriculture. He entered the rock and sand as well as explain the different types of soil and signaling types suitable for the crop, the quality, content and good soil.

Through history Kitab al-Akhbar at-Tiwal, ad- Dinawari se is also considered as one historian. In addition to telling za man of pre-Islamic history books also wheezing passes last days kekua saan In Umayyad dynasty in Khorasan. Bu ku da lam, the latter told how Marwan IIkhalifah Umay yahdi defeated by the Abbasid army.

858 Abu Abdallah Muhammad Ibn Jabir Ibn Sinan al-Battani.



Al-Battani is an astrologer and a Syrian metimatikawan yangmemiliki full name Abu Abdallah Muhammad Ibn Jabir Ibn Sinan al-Battani.Atau sometimes known Albategnius, Albategni or Albatenius in bahasalatinnya. Al-Battani was born in Battan, Harran, Syria at around 858 M.Keluarganya a sect Sabbian who do ritualpenyembahan to the stars. Being worshipers of the stars berartibahwa Sabiian have a strong motivation for the study of astronomy and merekamenghasilkan many astronomers and mathematicians such as Thabit Thabit bin Qurra.tidak, Al-Battani do not believe in religion Sabian. lebihmemilih he embraced Islam. Interest with objects in the sky make AlBattani then pursue astronomy. Informally he mendapatkanpendidikan of his father who was also a scientist, Jabir Ibn Al-Battani.Ayahmya San'an is a famous instrument maker in Harran. Sehinggakemampuan Al-Battani in making the instrument has no doubt lagi.Keyakinan is strengthened by evidence of the ability of Al Battani made danmenggunakan number of devices astronomical tools as did his father. Moments later, he left Harran towards Raqqa which is located in the banks of the Euphrates, where he continued his studies. The kotainilah he conducted a variety of research until he found a variety of penemuancemerlangnya. At that time, Raqqa become famous and achieve greatness. Raqqa become famous and achieve prosperity. This is due to karenakalifah Harun Al Rashid, the fifth Caliph of the Abbasid dynasty, on 14September 786 to build a number of palaces in the city. It merupakanpenghargaan on a number of inventions produced by research yangdilakukan Al Battani. After the construction of a palace in Raqqa, city centers inimenjadi both science and commerce is bustling.
7. Criticism: This section explains about the identity of Al-Battani well hometown, religion and family. Al-Battani was so adept at making and use the tools of astronomy since his father's discipline directly which is the manufacturer tools famous at that time. Al-Battani's interest in astronomy is believed to be due to family religion that teaches the worship of stars. In the town of Raqqa he conducted a variety of research until he found the brilliant and famous discoveries disana.ISI / RESULTS Fruit thought in the field of astronomy that get pengakuandunia is the length of the earth around the sun. Based on his calculations, he declared that the earth revolves around the center of the solar system in waktu365 days, 5 hours, 46 minutes, and 24 seconds. The calculations are approaching the last denganperhitungan that are considered more accurate. That is the fruit of 42 years of research payahnyaselama that begins in his youth diRaqqa, Syria. He found that the longitude of the sun terajauh mengalamipeningkatan of 16.47 degrees since the calculations performed olehPtolemy. This led to an important discovery about the motion lengkungmatahari. Al-Battani also determine accurately kemiringin ecliptic, panjangnyamusim, and orbit the sun. He even managed to find danplanet lunar orbit and set a new theory to determine a new moon kemungkinanterlihatnya condition. This is connected with the turn of a month to bulanlainnya. Discoveries concerning curved lines moon and the sun, on 1749kemudian used by Dunthorne to determine the motion acceleration month.
8. Just like, other Muslim scientists, he also wrote pengetahuannyadi two fields into a number of books. Yangpaling famous book on astronomy is Kitab Al Zij. This book was translated into bahasaLatin in the 12th century under the title De Scienta Stellerum u De NumerisStellerum et Motibus by Plato of Tivoli. The oldest translation of his work in the Vatican itumasih. Translation of the book is not all in latintetapi also other languages. This translation came out in 1116 while the print edition circulated pada1537 and in 1645. While the translation work into bahasaSpanyol emerged in the 13th century. In the next period both karyaAl Battani translation in Latin and Spanish persisted and digunakansecara wide. No wonder that his writings, so give bagiperkembangan influence of science in Europe until the advent of Pencerahan.Dalam Fihrist, who compiled Ibn An-Nadim in 988, this work merupakankumpulan Muslim influence on the 10th century, stated that Al Battanimerupakan astronomer who gives an overview accurately about months and the sun. In the field of mathematics, Al Battani also provide kontribusigemilang especially in trigonometry. Al Battani find sejumlahpersamaan trigonometry: He also solves the equation sin x = a cos x and find the formula:
9. and use the ideas of al-Marwazi about mengembangkanpersamaan-tangent in the equation to calculate the tangent, cotangent and arrange tabelperhitungan tangent. Other information contained in Fihrist also stated that AlBattani doing research between the years 877 and 918. Not only that, therein also contained information regarding the end of life of the scientist's. Fihristmenyatakan that Al Battani died in a dariRaqqa trip to Baghdad. This trip is done as a form of protest because he is subject to the fiscal excess. Al-Battani was reached Baghdad to menyampaikankeluhannya to the government. But then he exhaled nafasterakhirnya when on his way home from Baghdad to Raqqa.Kritik: In this section reveals that many of the discoveries Al-Battanidalam astonomi and trigonometry. In fact he is very akurat.Berdasarkan calculation calculations, he stated that the earth revolves around the center of the solar system within 365 days, 5 hours, 46 minutes, and 24 detik.Perhitungannya approached the final calculation that considered lebihakurat. As for the other inventions Al-Battani, namely:  Finding longitude terajauh sun has increased by 16.47 degrees since the calculation made by Ptolemy. Al Battani determine accurately kemiringin ecliptic, the length of the season, and orbit the sun  He managed to find the orbit of the moon and planets and establish a new theory to determine a condition of the possibility of sighting the new moon.  In the field of mathematics, Al Battani also contributed brilliantly, especially in developing trigonometry equations to calculate the tangent, cotangent and tangent calculation tabulated.
10. CONCLUSION From the article it can be concluded that: Al-Battani is an astrologer and metimatikawan Syrian origin whose full name is Abu Abdallah Muhammad Ibn Jabir Ibn Sinan al-Battani Al-Battani In informal education from his father who was also a scientist, Jabir Ibn San 'an Al-Battani In Raqqa city he conducted a variety of research until he found the brilliant and famous discoveries As for the work of the famous Al-Battani is:  Al-Battani accuracy in calculating the length of the earth around the sun 365 days, 5 hours, 46 minutes, and 24 seconds longitude terajauh  Finding the sun has increased by 16.47 degrees since the calculation made by Ptolemy. This led to an important discovery about the curved motion of the sun.  Al Battani determine accurately kemiringin ecliptic, the length of the season, and orbit the sun  He managed to find the orbit of the moon and planets and set a new theory to determine a condition of the possibility of sighting the new moon.  In the field of mathematics, Al Battani also contributed brilliantly, especially in developing trigonometry equations to calculate the tangent, cotangent and tangent calculation tabulated. His book on astronomy of the most famous is the Book of Al Zij. Al Battani died in a journey of Raqqa to Baghdad.
11. Criticism: At the conclusion tells about how long the trip tokohAl-Batani and so many konstribusinya in astronomy dantrigonometri. Al-Battani can be regarded as one of the figures yangmenginspirasi manufacture can find the calendar because the moon's orbit danplanet and set a new theory to determine a new moon kemungkinanterlihatnya condition. TASK 21. Why did you choose the article? Answer: I think this article is interesting, because Al-Battani is able to calculate the length of the earth around the sun with accuracy. Moreover He found that the longitude of the sun terajauh yielded important discoveries about the sun arcing motion. He also took part in finding the calendar because it managed to find the orbit of the moon and planets and set a new theory to determine a condition of the possibility of sighting the new moon. This is connected with the turn of a month to the other. In addition, the discovery of the moon and sun curved lines, in 1749 and then used by Dunthorne to determine acceleration motion months.2. Why is it so important journals? Answer: This journal is so important because with this journal we know one of the figures who inspired the creation of the calendar is Al-Battani because he managed to find the orbit of the moon and planets. In addition we know without Al-Battani Dunthorne can not determine the motion acceleration month
12. 3. Write down the two main ideas you get from reading the article! Answer: Al-Battani is an astrologer and metimatikawan Syrian origin whose full name is Abu Abdallah Muhammad Ibn Jabir Ibn Sinan al-Battani. In informal education he received from his father who was also a scientist, Jabir Ibn al-Battani San'an. Ayahmya is a famous instrument maker in Harran. In the town of Raqqa he conducted a variety of research until he found a variety of brilliant discoveries and terkenalAdapun the work of the famous Al-Battani is:  Al-Battani accuracy in calculating the length of the earth around the sun 365 days, 5 hours, 46 minutes, and 24 seconds  Finding the line terajauh longitude of the sun has increased by 16.47 degrees since the calculation made by Ptolemy. This led to an important discovery about the curved motion of the sun.  Al Battani determine accurately kemiringin ecliptic, the length of the season, and orbit the sun  He managed to find the orbit of the moon and planets and set a new theory to determine a condition of the possibility of sighting the new moon.  In the field of mathematics, Al Battani also contributed brilliantly, especially in developing trigonometry equations to calculate the tangent, cotangent and tangent calculation tabulated. Battani could use and make astronomical instruments so that he could calculate the time of the earth around the sun
Al-Battani received education from his father and continued his education. Al-Battani published a book entitled al-Zij translated into Latin in the 12th century under the title De Scienta Stellerum u De Numerical Stellerum et Motibus .Terjemahan oldest of his work was still in Spain. According to Al-Battani earth around the center of the solar system within A A. 365 days, 5 hours, 46 minutes, and 24 seconds important discoveries Al-Battani! Al-Battani accuracy in calculating the length of the earth around the sun 365 days, 5 hours, 46 minutes, and 24 detik Finding longitude terajauh sun has increased by 16.47 degrees since the calculation made by Ptolemy. This led to an important discovery about the curved motion matahari. Al Battani determine accurately kemiringin ecliptic, the length of the season, and orbit matahari He managed to find the orbit of the moon and planets and set a new theory to determine a condition of the possibility of sighting of moon baru. In the field of mathematics , Al Battani also contributed brilliantly, especially in developing trigonometry equations to calculate the tangent, cotangent and tangent calculation tabulated.
Abu Abdullah Al-Battani, the inventor Time in 1 Year
 "He is the one who makes the sun shine and the moon glowing and set his manzilah-manzilah (places) for the trip of the month, so that you may know the number of years and the reckoning (of time). God did not create this, but with the right. He explains the signs (of his greatness) to people who know. "(Surah Yunus [10]: 5)
The accuracy of calculation of al-Battani (850-932 AD) in the field of astronomy, making it managed to find time calculation within one year consisting of 365 days, 5 hours, 46 minutes and 24 seconds.
Muslim scholars in the fields of astronomy and mathematics is better known in the West by the name Albategnius. He was born in Battan, Syria with the full name of Abu Abdullah Muhammad Ibn Jabir Ibn Sinan al-Harrani ar Raqqi as Sabi al-Battani.
The thinking in the field of astronomy that gained worldwide recognition timing is around the center of the Earth in the solar system. Hard work for 42 years approached the final calculations are considered more accurate.
Al-Battani also determines the slope of the ecliptic, the length of the season and orbit the sun. He even managed to find the orbit of the moon and planets as well as establish a new theory in determining the appearance of the new moon.
Discoveries concerning the curved lines of the sun and the moon later became the basis for Dunthorne in 1749, to determine the motion acceleration month.
Caliph Harun al-Rashid build several palaces in the town of Raqqa as a reward for the discovery of a number of al-Battani then deliver the city's prosperity and became the center of science.

His works in the field of astronomy is very influential in Europe until the Renaissance. One of his most famous book, The Book 'al-Zij' translated into Latin under the title 'De Motu Stellarum'. This makes the book of Copernicus in his book 'De Revolutuionibus orbium Clestium', expressed budinya debt to al-Battani.

9th Abu Bakr al-Hassan ibn al-Khasib - Albubather

Albubather



Abu Bakr al-Hassan ibn al-Khasib, also al-KhasebAlbubather in Latin, was a Persian physician and astrologer of the 9th century.
He wrote in Persian and Arabic and is best known by his work De nativitatibus which was translated into Latin by Canonicus Salio in Padua 1218, and was also translated into Hebrew.







A biography is a detailed description or account of someone's life. More than a list of basic facts (education, work, relationships, and death), a biography also portrays a subject's experience of these events. Unlike a profile or curriculum vitae (résumé), a biography presents a subject's life story, highlighting various aspects of his or her life, including intimate details of experience, and may include an analysis of a subject's personality.
Biographical works are usually non-fiction, but fiction can also be used to portray a person's life. One in-depth form of biographical coverage is called legacy writing. Biographical works in diverse media—from literature to film—form the genre known as biography

.
An authorized biography is written with the permission, cooperation, and, at times, participation of a subject or a subject's heirs.
An autobiography is about a life of a subject, written by that subject or sometimes with a 
Ibn Abi Ramtha al-Tamimi







Ibn Abi Ramtha al-Tamimi (Arabic: ابن أبي رمثة التميمي‎), from Banu Tamim tribe, was a physician who lived during the lifetime of the Islamic prophet Muhammad. He was a skilful practitioner who occasionally practised surgery.

Biografi Al-Nairizi - Penghitung Arah Ka'bah di Mekah dengan Fungsi Tangen


Abū’l-‘Abbās al-Fal ibn ātim al-Nairīzī (Arabic: أبو العباس الفضل بن حاتم النيريزي, Latin: Anaritius, Nazirius, 865–922) was a 9th-10th century Persian mathematician and astronomer from Nayriz, Fars Province, Iran.
He flourished under al-Mu'tadid, Caliph from 892 to 902, and compiled astronomical tables, writing a book for al-Mu'tadid on atmospheric phenomena.
Nayrizi wrote commentaries on Ptolemy and Euclid. The latter were translated by Gerard of Cremona. Nairizi used the so-called umbra (versa), the equivalent to the tangent, as a genuine trigonometric line (but he was anticipated in this by al-Marwazi).
He wrote a treatise on the spherical astrolabe, which is very elaborate and seems to be the best Persian work on the subject. It is divided into four books:
Historical and critical introduction.
Description of the spherical astrolabe; its superiority over plane astrolabes and all other astronomical instruments.
Applications.
Applications.
He gave a proof of the Pythagorean theorem using the Pythagorean tiling.[1]
Ibn al-Nadim mentions Nayrizi as a distinguished astronomer with eight works by him listed in his book al-Fihrist.


Abu'l-Abbas al-Fadl bin Hatim al-Nairizi atau dalam Latin dikenal dengan Anaritius, Nazirius, adalah matematikawan Persia dan astronom dari Nayriz, Fars Province, Iran abad ke-9-10.Ia hidup pada masa Khalifah al-Mu'tadid (892-902), menyusun tabel astronomi, dan menulis sebuah buku untuk al-Mu'tadid tentang fenomena atmosfer.

Nayrizi menulis komentar tentang karya Ptolemy dan 
Euclid. Yang terakhir yang diterjemahkan oleh Gerard of Cremona. Nairizi menggunakan apa yang disebut umbra (versa), setara dengan tangen, sebagai garis trigonometri asli (namun sebelumnya hal tersebut sudah diungkapkan oleh ilmuwan persia lainnya yakni al-Marwazi yang merupakan penggagas pertamakali Sin, Cos dan Tan). Nayrizi memberikan bukti teorema Pythagoras menggunakan ubin Pythagoras.

Dia menulis sebuah risalah pada lingkaran astrolabe yang sangat rumit, yang merupakan karya terbaik Persia pada subjek. Hal ini dibagi menjadi empat buku yakni:

1. Sejarah dan pengantar kritis.
2. Deskripsi bola astrolabe; keunggulannya atas pesawat astrolab dan semua instrumen astronomi lainnya.
3. Aplikasi.
4. Aplikasi.


Hidup pada masa Khalifah al-Mu'tadid

Al-Nayrizi telah bekerja  di pemerintahan al-Mu'tadid selama sepuluh tahun, ia menulis beberap karya untuk khalifah tentang fenomena meteorologi dan instrumen untuk mengukur jarak ke obyek. Namun pada tahun 902 al-Mu'tadid diracun oleh musuh politiknya sehingga Putra al Al-Mu'tadid, Al-Muktafi menggantikan posisi ayahnya untuk menjadi dan berkuasa antara tahun 902-908. Akhirnya al-Nayrizi terus bekerja di Baghdad untuk khalifah baru sejak dukungan yang sama bagi para intelektual di Baghdad.

The Fihrist (Index) adalah sebuah karya yang disusun oleh penjual buku Ibnu an-Nadim di tahun 988. Ini memberikan laporan lengkap dari sastra bahasa Arab abad ke-10 dan secara khusus menyebutkan bahwa al-Nayrizi sebagai astronom. Delapan hasil kerja dengan nama al-Nayrizi terdaftar dalam Fihrist. Pada abad ke-13sebuah karya kemudian ditulis yang menggambarkan al-Nayrizi baik sebagai astronom maupun sebagai ahli geometri terkemuka.

Karya Al-Nayrizi tentang astronomi termasuk komentar tentang karya Ptolemy's Almagest dan Tetrabiblos, Tidak selamat. Ia paling terkenal karena komentarnya tentang Elemen 
Euclid yang telah bertahan. Naskah Leiden dimaksud dalam judul yang berisi revisi oleh al-Nayrizi dari terjemahan Arab kedua Elemen Euclid oleh al-Hajjaj.

Terjemahan al-Hajjaj tidak bertahan, dan artikel ini meneliti sejauh mana terjemahan al-Nayrizi berubah, dengan alasan bahwa memang ia membuat perubahan besar. Makalah ini melihat versi naskah yang berbeda yang berisi komentar al-Nayrizi, beberapa dalam bahasa Arab, salah satunya versi Latin.

Dalam berurusan dengan rasio dan proporsi dalam komentarnya pada Element, al-Nayrizi mengadopsi konsep yang diusulkan oleh al-Mahani yang pernah bekerja di Baghdad, mungkin sebelum al-Nayrizi tiba di sana.

Al-Nayrizi menulis sebuah karya tentang cara menghitung arah Ka'bah di Mekah (hal itu penting bagi umat Islam, karena setiap muslim harus menghadap arah (ka'bah sebagai kiblat) itu lima kali setiap hari saat melakukan shalat). Dalam karya ini ia secara efektif menggunakan fungsi tan, meski ia bukan orang pertama yang menggunakan ide-ide trigonometri. (
en.wikipedia.org dan berbagai sumber)
An-Nairizi (Ilmuwan Matematikawan & Astronom)

Namanya Abū’l-‘Abbās al-Fa
l ibn ātim al-Nairīzī (Arabic: أبو العباس الفضل بن حاتم النيريزي‎, Latin: Anaritius, Nazirius, 865–922) Al-Nayrizi mungkin lahir di Nayriz yang merupakan tenggara kota kecil
sekarang Shiraz di Iran tengah. Tentu saja ia harus telah dikaitkan dengan kota ini di masa mudanya telah disebut al-Nayrizi. Sedikit yang diketahui dari hidupnya, tetapi kita tahu bahwa ia berdedikasi beberapa karya al-Mu'tadid jadi dia hampir pasti pindah ke Baghdad dan bekerja di sana untuk khalifah.

Periode di mana al-Nayrizi tumbuh dewasa adalah pada saat pergolakan di wilayah di mana dia tinggal. Setelah pembunuhan khalifah al-Mutawwakil di 861 ada periode anarki dan perang sipil. Khalifah al-Mu'tamid dan saudara al-Muwaffaq yang adalah seorang pemimpin militer, mempersatukan kembali kekaisaran pada 870 tapi pemberontakan akhirnya menurunkannya di 883 hanya setelah bertahun-tahun kampanye militer oleh al-Muwaffaq dan saudaranya al-Mu'tadid. Al-Mu'tamid meninggal pada 892 dan, karena al-Mu'tadid telah memaksa dia untuk mencabut hak waris anaknya sendiri, al-Mu'tadid menjadi khalifah pada tahun tersebut.

Al-Mu'tadid mereorganisasi administrasi dan mereformasi keuangan, dan ia menunjukkan ketrampilan yang besar dan kekejaman dalam berurusan dengan banyak faksi yang telah muncul. Ada mengikuti periode kegiatan budaya yang besar, dengan rumah Baghdad untuk intelektual banyak. Al-Nayrizi telah bekerja dengan al-Mu'tadid selama sepuluh tahun di pemerintahan, karena ia menulis karya-karya untuk khalifah pada fenomena meteorologi dan instrumen untuk mengukur jarak ke obyek. Jika pemerintahan al-Mu'tadid sudah dimulai dengan intrik politik maka sepertinya untuk mengakhiri dengan cara yang sama, pendapat umum adalah bahwa, di 902, al-Mu'tadid diracun oleh musuh politiknya. Putra al Al-Mu'tadid, Al-Muktafi menjadi khalifah di 902 dan berkuasa sampai 908. Nampaknya bahwa al-Nayrizi akan terus bekerja di Baghdad untuk khalifah baru sejak dukungan yang sama bagi para intelektual di Baghdad lanjutan.

The Fihrist (Index) adalah sebuah karya disusun oleh penjual buku Ibnu an-Nadim di tahun 988. Ini memberikan laporan lengkap dari sastra bahasa Arab yang tersedia dalam abad ke-10 dan secara khusus menyebutkan al-Nayrizi sebagai astronom. Delapan hasil kerja dengan nama al-Nayrizi terdaftar dalam Fihrist. Sebuah karya kemudian, yang ditulis pada abad ke-13,menggambarkan al-Nayrizi baik sebagai astronom dan sebagai ahli terkemuka di geometri.

Karya Al-Nayrizi tentang astronomi termasuk komentar dari Ptolemy's Almagest dan Tetrabiblos, Tidak selamat. Ia paling terkenal karena komentarnya tentang Elemen Euclid yang telah bertahan. Naskah Leiden dimaksud dalam judul yang berisi revisi oleh al-Nayrizi dari terjemahan Arab kedua Elemen Euclid oleh al-Hajjaj. Terjemahan al-Hajjaj tidak bertahan dan artikel ini meneliti sejauh mana terjemahan al-Nayrizi berubah, dengan alasan bahwa memang ia membuat perubahan besar. Makalah ini melihat versi naskah yang berbeda yang berisi komentar al-Nayrizi, beberapa dalam bahasa Arab, salah satunya versi Latin.Dalam berurusan dengan rasio dan proporsi dalam komentarnya pada Element, al-Nayrizi mengadopsi konsep yang diusulkan oleh al-Mahani yang pernah bekerja di Baghdad, mungkin sebelum al-Nayrizi tiba di sana. Al-Nayrizi menulis sebuah karya tentang cara menghitung arah Ka'bah di Mekah (hal itu penting bagi umat Islam untuk dapat melakukan hal ini karena kita harus menghadap arah itu lima kali setiap hari saat melakukan shalat). Dalam karya ini ia secara efektif menggunakan fungsi tan, tapi ia bukan orang pertama yang menggunakan ide-ide trigonometri.

Sumber: