搜尋結果
In linear algebra, a rotation matrix is a transformation matrix that is used to perform a rotation in Euclidean space. For example, using the convention below, the matrix. rotates points in the xy plane counterclockwise through an angle θ about the origin of a two-dimensional Cartesian coordinate system.
After the Deluge is an oil painting by English artist George Frederic Watts. Completed in 1891, it shows a scene from the story of Noah's Flood, in which Noah opens the window of his Ark to see that after 40 days the rain has stopped. The Symbolist painting is a stylised seascape, dominated by a bright sunburst breaking through clouds.
Apollo 11 (July 16–24, 1969) was the American spaceflight that first landed humans on the Moon. Commander Neil Armstrong and Lunar Module Pilot Buzz Aldrin landed the Apollo Lunar Module Eagle on July 20, 1969, at 20:17 UTC, and Armstrong became the first person to step onto the Moon's surface six hours and 39 minutes later, on July 21 at 02: ...
- Name
- History
- Physical Description
- Use
- Significance in Christianity
- Flora
- In Popular Culture
- Gallery
- See Also
- External Links
Originally, the building's Latin name was simply amphitheatrum, 'amphitheatre'. Though the modern name Flavian Amphitheatre (Latin: Amphitheatrum Flavium) is often used, there is no evidence it was used in classical antiquity. This name refers to the patronage of the Flavian dynasty, during whose reigns the building was constructed, but the structu...
Construction, inauguration, and Roman renovations
The site chosen was a flat area on the floor of a low valley between the Caelian, Esquiline and Palatine Hills, through which a canalised stream ran as well as an artificial lake/marsh. By the 2nd century BC the area was densely inhabited. It was devastated by the Great Fire of Rome in 64 AD, following which Nero seized much of the area to add to his personal domain. He built the grandiose Domus Aurea on the site, in front of which he created an artificial lake surrounded by pavilions, garden...
Medieval
The Colosseum underwent several radical changes of use. By the late 6th century a small chapel had been built into the structure of the amphitheater, though this apparently did not confer any particular religious significance on the building as a whole. The arena was converted into a cemetery. The numerous vaulted spaces in the arcades under the seating were converted into housing and workshops, and are recorded as still being rented out as late as the 12th century. Around 1200 the Frangipani...
Modern
During the 16th and 17th century, Church officials sought a productive role for the Colosseum. Pope Sixtus V (1585–1590) planned to turn the building into a wool factory to provide employment for Rome's prostitutes, though this proposal fell through with his premature death. In 1671 Cardinal Altieri authorized its use for bullfights; a public outcry caused the idea to be hastily abandoned. In 1749, Pope Benedict XIV endorsed the view that the Colosseum was a sacred site where early Christians...
Exterior
Unlike Roman theatresthat were built into hillsides, the Colosseum is an entirely free-standing structure. It derives its basic exterior and interior architecture from that of two theatres back to back. It is elliptical in plan and is 189 meters (615 ft / 640 Roman feet) long, and 156 meters (510 ft / 528 Roman feet) wide, with a base area of 24,000 square metres (6 acres). The height of the outer wall is 48 meters (157 ft / 165 Roman feet). The perimeter originally measured 545 meters (1,788...
Interior seating
According to the Codex-Calendar of 354, the Colosseum could accommodate 87,000 people, although modern estimates put the figure at around 50,000. They were seated in a tiered arrangement that reflected the rigidly stratified nature of Roman society. Special boxes were provided at the north and south ends respectively for the Emperor and the Vestal Virgins, providing the best views of the arena. Flanking them at the same level was a broad platform or podium for the senatorialclass, who were al...
Arena and hypogeum
The arena itself was 83 meters by 48 meters (272 ft by 157 ft / 280 by 163 Roman feet). It comprised a wooden floor covered by sand (the Latin word for sand is harena or arena), covering an elaborate underground structure called the hypogeum (literally meaning "underground"). The hypogeum was not part of the original construction but was ordered to be built by Emperor Domitian. Little now remains of the original arena floor, but the hypogeum is still clearly visible. It consisted of a two-lev...
The Colosseum was used to host gladiatorial shows as well as a variety of other events. The shows, called munera, were always given by private individuals rather than the state. They had a strong religious element but were also demonstrations of power and family prestige and were immensely popular. Another major attraction was the animal hunt, or v...
The Colosseum is generally regarded by Christians as a site of the martyrdom of large numbers of believers during the persecution of Christians in the Roman Empire, as evidenced by Church history and tradition. On the other hand, other scholars believe that the majority of martyrdoms may have occurred at other venues within the city of Rome, rather...
The Colosseum has a wide and well-documented history of flora ever since Domenico Panaroli made the first catalogue of its plants in 1643. Since then, 684 species have been identified there. The peak was in 1855 (420 species). Attempts were made in 1871 to eradicate the vegetation, because of concerns over the damage that was being caused to the ma...
The Colosseum has appeared in numerous films, artworks and games. It is featured in films such as Roman Holiday, Gladiator, The Way of the Dragon, and Jumper. Several architectural works have also been modelled on or inspired by, the Colosseum. These include: 1. The Kongresshalle, or "Congress Hall", (1935, unfinished) at the Nazi Party Rally groun...
The Colosseum in 2021The Colosseum and the Arch of Constantine, seen from Palatine HillInteriorInteriorThe Great Wall of China ( traditional Chinese: 萬里長城; simplified Chinese: 万里长城; pinyin: Wànlǐ Chángchéng, literally "ten thousand li long wall") is a series of fortifications that were built across the historical northern borders of ancient Chinese states and Imperial China as protection against various nomadic groups from ...
Lyon [c] ( Franco-Provençal: Liyon ), traditionally spelled in English as Lyons, [d] is the third-largest city of France. [e] It is located at the confluence of the rivers Rhône and Saône, to the northwest of the French Alps, 391 km (243 mi) southeast of Paris, 278 km (173 mi) north of Marseille, 113 km (70 mi) southwest of Geneva, 58 km (36 ...
Mao Zedong [a] (26 December 1893 – 9 September 1976) was a Chinese politician, Marxist theorist, military strategist, poet, and revolutionary who was the founder of the People's Republic of China (PRC). He led the country from its establishment in 1949 until his death in 1976, while also serving as the chairman of the Chinese Communist Party ...
