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Spring – A rebellion led by William the Conqueror 's half-brothers Odo of Bayeux and Robert (2nd Earl of Cornwall ), begins against King William II with the aim to remove him from the throne. Odo's revolt in Kent and Sussex is supported by nobles across the country. The Worcestershire rebellion led by Robert de Lacy (a son of Ilbert de Lacy ...
- AD 1088
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- AD 1088
16 de abril: Un terremoto de 6,5 sacude el sur de Georgia dejando varios muertos. Primavera y verano, Odón de Bayeux lidera una rebelión contra Guillermo II de Inglaterra, conocida como Rebelión de 1088. Raimundo de Borgoña es designado conde de Galicia.
Events. Succession of Pope Urban II (1088- 1099) Work begins on the third and largest church at Cluny. Rebellion of 1088 against William II of England lead by Odo of Bayeux. Mansur ibn Nasir succeeds Nasir ibn Alnas as ruler of the Hammadid dynasty. University of Bologna was founded.
- Life and Works
- Su Song's Escapement Mechanism
- The Endless Chain Drive
- Su Song's Armillary Sphere
- Transmission of Su's Text and His Legacy
- See Also
- External Links
Career as a scholar-official
Su Song was of Hokkien ancestry who was born in modern-day Fujian, near medieval Quanzhou. Like his contemporary, Shen Kuo (1031–1095), Su Song was a polymath, a person whose expertise spans a significant number of different fields of study. It was written by his junior colleague and Hanlin scholar Ye Mengde (1077–1148) that in Su's youth, he mastered the provincial exams and rose to the top of the examination list for writing the best article on general principles and structure of the Chines...
Astronomy
Su Song also created a celestial atlas (in five separate maps), which had the hour circles between the xiu (lunar mansions) forming the astronomical meridians, with stars marked in an equidistant cylindrical projection on each side of the equator, and thus, was in accordance to their north polar distances. Furthermore, Su Song must have taken advantage of the astronomical findings of his political rival and contemporary astronomer Shen Kuo. Su Song's fourth star map places the position of the...
Pharmacology, botany, zoology, and mineralogy
In 1070, Su Song and a team of scholars compiled and edited the Bencao Tujing ('Illustrated Pharmacopoeia', original source material from 1058 to 1061), which was a groundbreaking treatise on pharmaceutical botany, zoology, and mineralogy.In compiling information for pharmaceutical knowledge, Su Song worked with such notable scholars as Zhang Yuxi, Lin Yi, Zhang Dong, and many others. This treatise documented a wide range of pharmaceutical practices, including the use of ephedrine as a drug....
In Su Song's waterwheel linkwork device, the action of the escapement's arrest and release was achieved by gravity exerted periodically as the continuous flow of liquid filled containers of a limited size.In a single line of evolution, Su Song's clock therefore united the concept of the clepsydra and the mechanical clock into one device run by mech...
The world's oldest illustrated depiction of an endless power-transmitting chain drive is from Su Song's horological treatise. It was used in the clockworks for coupling the main drive shaft to the armillary sphere gearbox (rotating three small pinions), as seen in Needham's Fig. 410 and Fig. 652. This belonged to the uppermost end of the main verti...
In Joseph Needham's third volume of Science and Civilization in China, the drawing for Fig. 159 displays a drawing of Su Song's armillary sphere (as depicted in his 11th century treatise), complete with three 'nests' or layers of mechanically rotated rings. It was the earlier Chinese astronomer Li Chun-feng of the Tang dynasty who in 633 AD created...
When Su Song's Xinyi Xiangfayao was written in 1092 and the horological monograph finalized and presented in 1094, his work was published and widely printed in the north (see woodblock printing and movable type of Bi Sheng). In the south, printing and circulation of his work was not widely distributed until Shi Yuanzhi of Jiangsuhad it printed ther...
La Rebelión de 1088 tuvo lugar en Inglaterra durante la primavera y el verano de 1088. Fue causada por la voluntad de los barones anglo-normandos de unir bajo un solo mando el ducado de Normandía y el reino de Inglaterra , que Guillermo el Conquistador había legado, a su muerte en 1087, a sus hijos Robert Courteheuse y Guillermo el Rojo ...
Year 1188 ( MCLXXXVIII) was a leap year starting on Friday (link will display the full calendar) of the Julian calendar . Events. By place. Europe. January 22 – King Ferdinand II dies after returning from a pilgrimage to Santiago de Compostela. He is succeeded by his 16-year-old son Alfonso IX, who becomes ruler of León and Galicia.
