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54-577: The district was originally named "Talat Khwan". Simon de la Loubère , who was a French envoy extraordinary to the King of Ayutthaya , wrote in his book that Talat Khwan (Talacoan) was an important place on the Chao Phraya River . It is unknown what year it was established. In 1917, the provincial administration of Nonthaburi was moved into the district, and thus the district was renamed Mueang Nonthaburi. From 1 January 1943 to 9 May 1946 Nonthaburi

108-483: A Greek origin for certain aspects of Indian astronomy. One of the direct proofs for this approach is the fact quoted that many Sanskrit words related to astronomy, astrology and calendar are either direct phonetical borrowings from the Greek language, or translations, assuming complex ideas, like the names of the days of the week which presuppose a relation between those days, planets (including Sun and Moon) and gods. With

162-673: A Persian treatise on astronomy. He wrote about the heliocentric model, and argued that there exists an infinite number of universes ( awalim ), each with their own planets and stars, and that this demonstrates the omnipotence of God, who is not confined to a single universe. The last known Zij treatise was the Zij-i Bahadurkhani , written in 1838 by the Indian astronomer Ghulam Hussain Jaunpuri (1760–1862) and printed in 1855, dedicated to Bahadur Khan . The treatise incorporated

216-456: A description of his travels, as had been requested by Louis XIV , published under the title Du Royaume de Siam : "It was by the orders, which I had the honours to receive from the King upon leaving for my voyage to Siam, that I observed in that country, as exactly as possible, all that appeared to be the most singular. Loubère also brought back with him an obscure manuscript relating to the astronomical traditions of Siam, which he passed on to

270-593: A discipline of Vedanga , or one of the "auxiliary disciplines" associated with the study of the Vedas dating 1500 BCE or older. The oldest known text is the Vedanga Jyotisha , dated to 1400–1200 BCE (with the extant form possibly from 700 to 600 BCE). Indian astronomy was influenced by Greek astronomy beginning in the 4th century BCE and through the early centuries of the Common Era, for example by

324-453: A horizontal plane in order to ascertain the cardinal directions, the latitude of the point of observation, and the time of observation. This device finds mention in the works of Varāhamihira, Āryabhata, Bhāskara, Brahmagupta, among others. The Cross-staff , known as Yasti-yantra , was used by the time of Bhaskara II (1114–1185 CE). This device could vary from a simple stick to V-shaped staffs designed specifically for determining angles with

378-529: A man would jump from a high place with two large umbrellas to entertain the king of Siam, landing into trees, rooftops, and sometimes rivers. Indian astronomy Indian astronomy refers to astronomy practiced in the Indian subcontinent . It has a long history stretching from pre-historic to modern times . Some of the earliest roots of Indian astronomy can be dated to the period of Indus Valley civilisation or earlier. Astronomy later developed as

432-410: A nocturnal polar rotation instrument consisted of a rectangular board with a slit and a set of pointers with concentric graduated circles. Time and other astronomical quantities could be calculated by adjusting the slit to the directions of α and β Ursa Minor . Ōhashi (2008) further explains that: "Its backside was made as a quadrant with a plumb and an index arm. Thirty parallel lines were drawn inside

486-541: A number of observations were carried out". Following the arrival of the British East India Company in the 18th century, the Hindu and Islamic traditions were slowly displaced by European astronomy, though there were attempts at harmonising these traditions. The Indian scholar Mir Muhammad Hussain had travelled to England in 1774 to study Western science and, on his return to India in 1777, he wrote

540-626: A personal observatory near Delhi , while Jahangir and Shah Jahan were also intending to build observatories but were unable to do so. After the decline of the Mughal Empire, it was a Hindu king, Jai Singh II of Amber , who attempted to revive both the Islamic and Hindu traditions of astronomy which were stagnating in his time. In the early 18th century, he built several large observatories called Yantra Mandirs in order to rival Ulugh Beg 's Samarkand observatory and in order to improve on

594-430: A very simple method for creating n-odd magic squares , known as the " Siamese method " or the "La Loubère method", which apparently was initially brought from Surat , India, by another Frenchman by the surname of Vincent, who was sailing on the return ship with La Loubère. La Loubère is also famous for making one of the earliest account of a parachute following his embassy to Siam. He reported in his 1691 book that

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648-558: A wheel with 12 parts and 360 spokes (days), with a remainder of 5, making reference to the solar calendar. As in other traditions, there is a close association of astronomy and religion during the early history of the science, astronomical observation being necessitated by spatial and temporal requirements of correct performance of religious ritual. Thus, the Shulba Sutras , texts dedicated to altar construction, discusses advanced mathematics and basic astronomy. Vedanga Jyotisha

702-434: Is a stub . You can help Misplaced Pages by expanding it . Simon de la Loub%C3%A8re Simon de la Loubère ( French: [simɔ̃ də la lubɛʁ] ; 21 April 1642 – 26 March 1729) was a French diplomat to Siam (Thailand), writer, mathematician and poet. He is credited with bringing back a document which introduced Europe to Indian astronomy , the " Siamese method " of making magic squares , as well as one of

756-643: Is another of the earliest known Indian texts on astronomy, it includes the details about the Sun, Moon, nakshatras , lunisolar calendar . The Vedanga Jyotisha describes rules for tracking the motions of the Sun and the Moon for the purposes of ritual. According to the Vedanga Jyotisha, in a yuga or "era", there are 5 solar years, 67 lunar sidereal cycles, 1,830 days, 1,835 sidereal days and 62 synodic months. Greek astronomical ideas began to enter India in

810-679: Is in a flourishing state." Another Indian text, the Gargi-Samhita , also similarly compliments the Yavanas (Greeks) noting they, though barbarians, must be respected as seers for their introduction of astronomy in India. Indian astronomy reached China with the expansion of Buddhism during the Later Han (25–220 CE). Further translation of Indian works on astronomy was completed in China by

864-472: Is not extant. The text today known as Surya Siddhanta dates to the Gupta period and was received by Aryabhata . The classical era of Indian astronomy begins in the late Gupta era, in the 5th to 6th centuries. The Pañcasiddhāntikā by Varāhamihira (505 CE) approximates the method for determination of the meridian direction from any three positions of the shadow using a gnomon . By the time of Aryabhata

918-708: The Defence Research and Development Organisation and the Indian Space Research Organisation's (ISRO) civilian space programme and launch vehicle technology. Bhaba established the Tata Institute of Fundamental Research and Vikram Sarabhai established the Physical Research Laboratory . These organisations researched cosmic radiation and conducted studies of the upper atmosphere . In 1950,

972-643: The Latin translations of the 12th century , Muhammad al-Fazari 's Great Sindhind (based on the Surya Siddhanta and the works of Brahmagupta ), was translated into Latin in 1126 and was influential at the time. Many Indian works on astronomy and astrology were translated into Middle Persian in Gundeshapur the Sasanian Empire and later translated from Middle Persian into Arabic. In

1026-544: The Mauryan Empire , and the later expansion of the Indo-Greeks into India suggest that transmission of Greek astronomical ideas to India occurred during this period. The Greek concept of a spherical Earth surrounded by the spheres of planets, further influenced the astronomers like Varahamihira and Brahmagupta . Several Greco-Roman astrological treatises are also known to have been exported to India during

1080-568: The Three Kingdoms era (220–265 CE). However, the most detailed incorporation of Indian astronomy occurred only during the Tang dynasty (618–907 CE) when a number of Chinese scholars—such as Yi Xing — were versed both in Indian and Chinese astronomy . A system of Indian astronomy was recorded in China as Jiuzhi-li (718 CE), the author of which was an Indian by the name of Qutan Xida —a translation of Devanagari Gotama Siddha—the director of

1134-547: The Yavanajataka and the Romaka Siddhanta , a Sanskrit translation of a Greek text disseminated from the 2nd century. Indian astronomy flowered in the 5th–6th century, with Aryabhata , whose work, Aryabhatiya , represented the pinnacle of astronomical knowledge at the time. The Aryabhatiya is composed of four sections, covering topics such as units of time, methods for determining the positions of planets,

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1188-573: The calendars in India: The oldest system, in many respects the basis of the classical one, is known from texts of about 1000 BCE. It divides an approximate solar year of 360 days into 12 lunar months of 27 (according to the early Vedic text Taittirīya Saṃhitā 4.4.10.1–3) or 28 (according to the Atharvaveda , the fourth of the Vedas, 19.7.1.) days. The resulting discrepancy was resolved by

1242-796: The tambon of the same name; and Bang Krang, which covers most parts of the tambon of the same name. The Thai Department of Corrections has its headquarters in Suan Yai in this district. Mueang Nonthaburi as well as neighbouring Bang Kruai and Bang Yai is the last natural habitat of the Alexandrine parakeet and red-breasted parakeet , a medium-sized parrot in Bangkok Metropolitan Region . They live in groups on large trees in some local temples, such as Wat Suan Yai, Wat Utthayan, Wat Ampawan, Wat Chaloem Phra Kiat Worawihan . This Nonthaburi Province location article

1296-470: The 17th century, the Mughal Empire saw a synthesis between Islamic and Hindu astronomy, where Islamic observational instruments were combined with Hindu computational techniques. While there appears to have been little concern for planetary theory, Muslim and Hindu astronomers in India continued to make advances in observational astronomy and produced nearly a hundred Zij treatises. Humayun built

1350-586: The 4th century BCE following the conquests of Alexander the Great . By the early centuries of the Common Era, Indo-Greek influence on the astronomical tradition is visible, with texts such as the Yavanajataka and Romaka Siddhanta . Later astronomers mention the existence of various siddhantas during this period, among them a text known as the Surya Siddhanta . These were not fixed texts but rather an oral tradition of knowledge, and their content

1404-563: The 6th century, the Romaka Siddhanta ("Doctrine of the Romans"), and the Paulisa Siddhanta ("Doctrine of Paul ") were considered as two of the five main astrological treatises, which were compiled by Varāhamihira in his Pañca-siddhāntikā ("Five Treatises"), a compendium of Greek, Egyptian, Roman and Indian astronomy. Varāhamihira goes on to state that "The Greeks, indeed, are foreigners, but with them this science (astronomy)

1458-762: The Kerala school (active 1380 to 1632) involved higher order polynomials and other cutting-edge algebra; many neatly were put to use, principally for predicting motions and alignments within the Solar System. During 1920, astronomers like Sisir Kumar Mitra , C.V. Raman and Meghnad Saha worked on various projects such as sounding of the ionosphere through ground-based radio and the Saha ionisation equation . Homi J. Bhaba and Vikram Sarabhai made significant contributions. A. P. J. Abdul Kalam also known as Missile Man of India assisted in development and research for

1512-404: The Sun inferred from the Moon's position at Full Moon, when the Sun is on the opposite side of the Moon. The position of the Sun at midnight was calculated from the nakṣatra that culminated on the meridian at that time, the Sun then being in opposition to that nakṣatra . Among the devices used for astronomy was gnomon , known as Sanku , in which the shadow of a vertical rod is applied on

1566-575: The Tang dynasty's national astronomical observatory. Fragments of texts during this period indicate that Arabs adopted the sine function (inherited from Indian mathematics) instead of the chords of arc used in Hellenistic mathematics . Another Indian influence was an approximate formula used for timekeeping by Muslim astronomers . Through Islamic astronomy, Indian astronomy had an influence on European astronomy via Arabic translations. During

1620-426: The armillary sphere was composed between 1380 and 1460 CE by Parameśvara . On the subject of the usage of the armillary sphere in India, Ōhashi (2008) writes: "The Indian armillary sphere ( gola-yantra ) was based on equatorial coordinates, unlike the Greek armillary sphere, which was based on ecliptical coordinates, although the Indian armillary sphere also had an ecliptical hoop. Probably, the celestial coordinates of

1674-665: The astronomical tables compiled by Philippe de La Hire in 1702. After examining La Hire's work, Jai Singh concluded that the observational techniques and instruments used in European astronomy were inferior to those used in India at the time – it is uncertain whether he was aware of the Copernican Revolution via the Jesuits. He did, however, employ the use of telescopes . In his Zij-i Muhammad Shahi , he states: "telescopes were constructed in my kingdom and using them

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1728-406: The cause of day and night, and several other cosmological concepts. Later, Indian astronomy significantly influenced Muslim astronomy , Chinese astronomy , European astronomy and others. Other astronomers of the classical era who further elaborated on Aryabhata's work include Brahmagupta , Varahamihira and Lalla . An identifiable native Indian astronomical tradition remained active throughout

1782-635: The earlier Hindu computations in the Siddhantas and Islamic observations in Zij-i-Sultani . The instruments he used were influenced by Islamic astronomy, while the computational techniques were derived from Hindu astronomy. Some scholars have suggested that knowledge of the results of the Kerala school of astronomy and mathematics may have been transmitted to Europe through the trade route from Kerala by traders and Jesuit missionaries. Kerala

1836-704: The earliest descriptions of parachutes . Simon de la Loubère led an embassy to Siam (modern Thailand ) in 1687 (the "La Loubère- Céberet mission"). The embassy, composed of five warships, arrived in Bangkok in October 1687 and was received by Ok-khun Chamnan . La Loubère returned to France on board the Gaillard on 3 January 1688, accompanied by the Jesuit Guy Tachard , and a Siamese embassy led by Ok-khun Chamnan. Upon his return, La Loubère wrote

1890-515: The eighteenth century. The observatory in Mathura is not extant, but those in Delhi, Jaipur , Ujjain , and Banaras are. There are several huge instruments based on Hindu and Islamic astronomy. For example, the samrāt.-yantra (emperor instrument) is a huge sundial which consists of a triangular gnomon wall and a pair of quadrants toward the east and west of the gnomon wall. Time has been graduated on

1944-566: The famous French-Italian astronomer Jean Dominique Cassini . The Siamese Manuscript, as it is now called, intrigued Cassini enough so that he spent a couple years deciphering its cryptic contents, determining on the way that the document originated in India. His explication of the manuscript appeared in La Loubere's book on the Kingdom of Siam in 1691, which laid the first foundation of European scholarship on Indian astronomy . La Loubère

1998-575: The first few centuries of the present era. The Yavanajataka is a Sanskrit text of the 3rd century CE on Greek horoscopy and mathematical astronomy. Rudradaman 's capital at Ujjain "became the Greenwich of Indian astronomers and the Arin of the Arabic and Latin astronomical treatises; for it was he and his successors who encouraged the introduction of Greek horoscopy and astronomy into India." Later in

2052-669: The heliocentric system into the Zij tradition. Jantar (means yantra, machine); mantar (means calculate). Jai Singh II in the 18th century took great interest in science and astronomy. He made various Jantar Mantars in Jaipur , Delhi , Ujjain , Varanasi and Mathura . The Jaipur instance has 19 different astronomical calculators. These comprise live and forward-calculating astronomical clocks (calculators) for days, eclipses, visibility of key constellations which are not year-round northern polar ones thus principally but not exclusively those of

2106-450: The help of a calibrated scale. The clepsydra ( Ghatī-yantra ) was used in India for astronomical purposes until recent times. Ōhashi (2008) notes that: "Several astronomers also described water-driven instruments such as the model of fighting sheep." The armillary sphere was used for observation in India since early times, and finds mention in the works of Āryabhata (476 CE). The Goladīpikā —a detailed treatise dealing with globes and

2160-444: The intercalation of a leap month every 60 months. Time was reckoned by the position marked off in constellations on the ecliptic in which the Moon rises daily in the course of one lunation (the period from New Moon to New Moon) and the Sun rises monthly in the course of one year. These constellations ( nakṣatra ) each measure an arc of 13° 20 ′ of the ecliptic circle. The positions of the Moon were directly observable, and those of

2214-499: The junction stars of the lunar mansions were determined by the armillary sphere since the seventh century or so. There was also a celestial globe rotated by flowing water." An instrument invented by the mathematician and astronomer Bhaskara II (1114–1185 CE) consisted of a rectangular board with a pin and an index arm. This device—called the Phalaka-yantra —was used to determine time from the Sun's altitude. The Kapālayantra

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2268-478: The medieval period and into the 16th or 17th century, especially within the Kerala school of astronomy and mathematics . Some of the earliest forms of astronomy can be dated to the period of Indus Valley civilisation , or earlier. Some cosmological concepts are present in the Vedas , as are notions of the movement of heavenly bodies and the course of the year. The Rig Veda is one of the oldest pieces of Indian literature. Rig Veda 1-64-11 & 48 describes time as

2322-412: The motion of planets was treated to be elliptical rather than circular. Other topics included definitions of different units of time, eccentric models of planetary motion, epicyclic models of planetary motion, and planetary longitude corrections for various terrestrial locations. The divisions of the year were on the basis of religious rites and seasons ( Ṛtú ). The duration from mid March—mid May

2376-431: The only examples of seamless metal globes. These Mughal metallurgists developed the method of lost-wax casting in order to produce these globes. According to David Pingree , there are a number of Indian astronomical texts dated to the sixth century CE or later with a high degree of certainty. There is substantial similarity between these and pre-Ptolemaic Greek astronomy. Pingree believes that these similarities suggest

2430-409: The quadrant, and trigonometrical calculations were done graphically. After determining the sun's altitude with the help of the plumb, time was calculated graphically with the help of the index arm." Ōhashi (2008) reports on the observatories constructed by Jai Singh II of Amber : The Mahārāja of Jaipur, Sawai Jai Singh (1688–1743 CE), constructed five astronomical observatories at the beginning of

2484-510: The quadrants. The seamless celestial globe invented in Mughal India , specifically Lahore and Kashmir , is considered to be one of the most impressive astronomical instruments and remarkable feats in metallurgy and engineering. All globes before and after this were seamed, and in the 20th century, it was believed by metallurgists to be technically impossible to create a metal globe without any seams , even with modern technology. It

2538-547: The rise of Greek culture in the east , Hellenistic astronomy filtered eastwards to India, where it profoundly influenced the local astronomical tradition. For example, Hellenistic astronomy is known to have been practised near India in the Greco-Bactrian city of Ai-Khanoum from the 3rd century BCE. Various sun-dials, including an equatorial sundial adjusted to the latitude of Ujjain have been found in archaeological excavations there. Numerous interactions with

2592-411: The zodiac. Astronomers abroad were invited and admired complexity of certain devices. As brass time-calculators are imperfect, and to help in their precise re-setting so as to match true locally experienced time, there remains equally his Samrat Yantra, the largest sundial in the world. It divides each daylit hour as to solar 15-minute, 1-minute and 6-second subunits. Other notable include: Models of

2646-715: Was abolished and split between Thonburi and Phra Nakhon Provinces. Thus the district, which was then in Phra Nakhon Province, was renamed "Nonthaburi". After the recreation of the province, it changed back to "Mueang Nonthaburi". The district is divided into 10 sub-districts ( tambons ), which are further subdivided into 32 villages ( mubans ). The city ( thesaban nakhon ) of Nonthaburi covers tambons Suan Yai, Talat Khwan, Bang Khen, Bang Kraso, and Tha Sai. There are three town municipalities ( thesaban mueang ): Bang Si Mueang, which covers tambon Bang Si Mueang and parts of tambon Bang Krang; Sai Ma, which covers

2700-475: Was an equatorial sundial instrument used to determine the Sun's azimuth . Kartarī-yantra combined two semicircular board instruments to give rise to a 'scissors instrument'. Introduced from the Islamic world and first finding mention in the works of Mahendra Sūri —the court astronomer of Firuz Shah Tughluq (1309–1388 CE)—the astrolabe was further mentioned by Padmanābha (1423 CE) and Rāmacandra (1428 CE) as its use grew in India. Invented by Padmanābha ,

2754-523: Was elected member of the Académie française (1693–1729), where he received Seat 16 , following the 1691 publication of his book Du Royaume de Siam . La Loubère was a friend of the German scientist Gottfried Leibniz , and once wrote that he had "no greater joy than (to discuss) philosophy and mathematics" with him (22 January 1681 correspondence). La Loubère brought to France from his Siamese travels

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2808-467: Was in continuous contact with China, Arabia and Europe. The existence of circumstantial evidence such as communication routes and a suitable chronology certainly make such a transmission a possibility. However, there is no direct evidence by way of relevant manuscripts that such a transmission took place. In the early 18th century, Jai Singh II of Amber invited European Jesuit astronomers to one of his Yantra Mandir observatories, who had bought back

2862-627: Was in the 1980s, however, that Emilie Savage-Smith discovered several celestial globes without any seams in Lahore and Kashmir. The earliest was invented in Kashmir by Ali Kashmiri ibn Luqman in 1589–90 CE during Akbar the Great 's reign; another was produced in 1659–60 CE by Muhammad Salih Tahtawi with Arabic and Sanskrit inscriptions; and the last was produced in Lahore by a Hindu metallurgist Lala Balhumal Lahuri in 1842 during Jagatjit Singh Bahadur 's reign. 21 such globes were produced, and these remain

2916-475: Was taken to be spring ( vasanta ), mid May—mid July: summer ( grishma ), mid July—mid September: rains ( varsha ), mid September—mid November: autumn ( sharada ), mid November—mid January: winter ( hemanta ), mid January—mid March: the dews ( shishira ). In the Vedānga Jyotiṣa , the year begins with the winter solstice. Hindu calendars have several eras : J.A.B. van Buitenen (2008) reports on

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