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Giulio Magli
Giulio Magli (born 1964, Rome) is an Italian astrophysicist and archaeo-astronomer working primarily on the relationship between the architecture of ancient cultures and the sky. Biography After receiving a PhD in Mathematical Physics at the University of Milan, Magli developed his academic career at the Politecnico of Milan, where he became full professor of Mathematical Physics in 2005. Since 2009, he has taught a course on archaeoastronomy, first ever such course offered in an Italian University. Work In the field of relativistic astrophysics, Magli has worked on the so-called Cosmic Censorship conjecture. He was the first to find the general exact solution of the Einstein field equations for spherically symmetric spacetimes with tangential stresses and, together with R. Giambo', F. Giannoni and P. Piccione, to investigate the nature of the final state for these gravitational collapse models. In the field of archaeoastronomy, Magli has investigated the foundations of the disc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rome
, established_title = Founded , established_date = 753 BC , founder = King Romulus ( legendary) , image_map = Map of comune of Rome (metropolitan city of Capital Rome, region Lazio, Italy).svg , map_caption = The territory of the ''comune'' (''Roma Capitale'', in red) inside the Metropolitan City of Rome (''Città Metropolitana di Roma'', in yellow). The white spot in the centre is Vatican City. , pushpin_map = Italy#Europe , pushpin_map_caption = Location within Italy##Location within Europe , pushpin_relief = yes , coordinates = , coor_pinpoint = , subdivision_type = Country , subdivision_name = Italy , subdivision_type2 = Regions of Italy, Region , subdivision_name2 = Lazio , subdivision_type3 = Metropolitan cities of Italy, Metropolitan city , subdivision_name3 = Metropolitan City of Rome Capital, Rome Capital , government_footnotes= , government_type = Mayor–council gover ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cosmic Censorship Conjecture
The weak and the strong cosmic censorship hypotheses are two mathematical conjectures about the structure of gravitational singularities arising in general relativity. Singularities that arise in the solutions of Einstein's equations are typically hidden within event horizons, and therefore cannot be observed from the rest of spacetime. Singularities that are not so hidden are called ''naked''. The weak cosmic censorship hypothesis was conceived by Roger Penrose in 1969 and posits that no naked singularities exist in the universe. Basics Since the physical behavior of singularities is unknown, if singularities can be observed from the rest of spacetime, causality may break down, and physics may lose its predictive power. The issue cannot be avoided, since according to the Penrose–Hawking singularity theorems, singularities are inevitable in physically reasonable situations. Still, in the absence of naked singularities, the universe, as described by the general theory of relativity ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Living People
Related categories * :Year of birth missing (living people) / :Year of birth unknown * :Date of birth missing (living people) / :Date of birth unknown * :Place of birth missing (living people) / :Place of birth unknown * :Year of death missing / :Year of death unknown * :Date of death missing / :Date of death unknown * :Place of death missing / :Place of death unknown * :Missing middle or first names See also * :Dead people * :Template:L, which generates this category or death years, and birth year and sort keys. : {{DEFAULTSORT:Living people 21st-century people People by status ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1964 Births
Events January * January 1 – The Federation of Rhodesia and Nyasaland is dissolved. * January 5 - In the first meeting between leaders of the Roman Catholic and Orthodox churches since the fifteenth century, Pope Paul VI and Patriarch Athenagoras I of Constantinople meet in Jerusalem. * January 6 – A British firm, the Leyland Motor Corp., announces the sale of 450 buses to the Cuban government, challenging the United States blockade of Cuba. * January 9 – '' Martyrs' Day'': Armed clashes between United States troops and Panamanian civilians in the Panama Canal Zone precipitate a major international crisis, resulting in the deaths of 21 Panamanians and 4 U.S. soldiers. * January 11 – United States Surgeon General Luther Terry reports that smoking may be hazardous to one's health (the first such statement from the U.S. government). * January 12 ** Zanzibar Revolution: The predominantly Arab government of Zanzibar is overthrown by African nationalist rebel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astrophysics Data System
The SAO/NASA Astrophysics Data System (ADS) is an online database of over 16 million astronomy and physics papers from both peer reviewed and non-peer reviewed sources. Abstracts are available free online for almost all articles, and full scanned articles are available in Graphics Interchange Format (GIF) and Portable Document Format (PDF) for older articles. It was developed by the National Aeronautics and Space Administration (NASA), and is managed by the Smithsonian Astrophysical Observatory. ADS is a powerful research tool and has had a significant impact on the efficiency of astronomical research since it was launched in 1992. Literature searches that previously would have taken days or weeks can now be carried out in seconds via the ADS search engine, which is custom-built for astronomical needs. Studies have found that the benefit to astronomy of the ADS is equivalent to several hundred million US dollars annually, and the system is estimated to have tripled the reader ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Titicaca Lake
Lake Titicaca (; es, Lago Titicaca ; qu, Titiqaqa Qucha) is a large freshwater lake in the Andes mountains on the border of Bolivia and Peru. It is often called the highest navigable lake in the world. By volume of water and by surface area, it is also the largest lake in South America.Grove, M. J., P. A. Baker, S. L. Cross, C. A. Rigsby and G. O. Seltzer 2003 Application of Strontium Isotopes to Understanding the Hydrology and Paleohydrology of the Altiplano, Bolivia-Peru. ''Palaeogeography, Palaeoclimatology, Palaeoecology'' 194:281-297. Lake Titicaca has a surface elevation of . The "highest lake" claim is generally considered to refer to commercial craft. Numerous smaller bodies of water (that are not considered lakes) around the world are at higher elevations. For many years, the largest vessel afloat on the lake was the 2,200-ton (2,425 U.S. tons), SS ''Ollanta''. Today, the largest vessel is most likely the similarly sized train barge/float ''Manco Capac'', operated by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Userkare
Userkare (also Woserkare, meaning "Powerful is the soul of Ra") was the second pharaoh of the Sixth Dynasty, reigning briefly, 1 to 5 years, in the late 24th to early 23rd century BC. Userkare's relation to his predecessor Teti and successor Pepi I is unknown and his reign remains enigmatic. Although he is attested in historical sources, Userkare is completely absent from the tomb of the Egyptian officials who lived during his reign. In addition, the Egyptian priest Manetho reports that Userkare's predecessor Teti was murdered. Userkare is often considered to have been a short-lived usurper. Alternatively, he may have been a regent who ruled during Teti's son's childhood who later ascended the throne as Pepi I. Attestations Historical sources Userkare is present on the Abydos King List, a list of kings written during the reign of Seti I (1290–1279 BC) over 1000 years after the early Sixth Dynasty. Userkare's cartouche occupies the 35th entry of the list, between those ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giza Pyramid Complex
The Giza pyramid complex ( ar, مجمع أهرامات الجيزة), also called the Giza necropolis, is the site on the Giza Plateau in Greater Cairo, Egypt that includes the Great Pyramid of Giza, the Pyramid of Khafre, and the Pyramid of Menkaure, along with their associated pyramid complexes and the Great Sphinx of Giza. All were built during the Fourth Dynasty of the Old Kingdom of Ancient Egypt, between 2600 and 2500 BC. The site also includes several cemeteries and the remains of a workers' village. The site is at the edges of the Western Desert, approximately west of the Nile River in the city of Giza, and about southwest of the city centre of Cairo. Along with nearby Memphis, the site was inscribed on the UNESCO World Heritage List in 1979. The Great Pyramid and the Pyramid of Khafre are the largest pyramids built in ancient Egypt, and they have historically been common as emblems of Ancient Egypt in the Western imagination. They were popularised in Hellenis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Machu Picchu
Machu Picchu is a 15th-century Inca citadel located in the Eastern Cordillera of southern Peru on a mountain range.UNESCO World Heritage Centre. It is located in the Machupicchu District within Urubamba Province above the Sacred Valley, which is northwest of Cusco. The Urubamba River flows past it, cutting through the Cordillera and creating a canyon with a tropical mountain climate. For most speakers of English or Spanish, the first 'c' in ''Picchu'' is silent. In English, the name is pronounced or , in Spanish as or , and in Quechua (''Machu Pikchu'') as . The Incas, in contrast to the Maya, had no written language, and no European visited the site until the 19th century, so far as is known. There are, therefore, no written records of the site while it was in use. The names of the buildings, their supposed uses, and their inhabitants are all the product of modern archaeologists, on the basis of physical evidence, including tombs at the site. Most recent archaeolog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Italy
Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical region. Italy is also considered part of Western Europe, and shares land borders with France, Switzerland, Austria, Slovenia and the enclaved microstates of Vatican City and San Marino. It has a territorial exclave in Switzerland, Campione. Italy covers an area of , with a population of over 60 million. It is the third-most populous member state of the European Union, the sixth-most populous country in Europe, and the tenth-largest country in the continent by land area. Italy's capital and largest city is Rome. Italy was the native place of many civilizations such as the Italic peoples and the Etruscans, while due to its central geographic location in Southern Europe and the Mediterranean, the country has also historically b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pantheon, Rome
The Pantheon (, ; la, Pantheum,Although the spelling ''Pantheon'' is standard in English, only ''Pantheum'' is found in classical Latin; see, for example, Pliny, '' Natural History'36.38 "Agrippas Pantheum decoravit Diogenes Atheniensis". See also ''Oxford Latin Dictionary'', s.v. "Pantheum"; ''Oxford English Dictionary'', s.v"Pantheon" "post-classical Latin ''pantheon'' a temple consecrated to all the gods (6th cent.; compare classical Latin ''pantheum'')". from Greek ''Pantheion'', " empleof all the gods") is a former Roman temple and, since 609 AD, a Catholic church (Basilica di Santa Maria ad Martyres or Basilica of St. Mary and the Martyrs) in Rome, Italy, on the site of an earlier temple commissioned by Marcus Agrippa during the reign of Augustus (27 BC – 14 AD). It was rebuilt by the emperor Hadrian and probably dedicated 126 AD. Its date of construction is uncertain, because Hadrian chose not to inscribe the new temple but rather to retain t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giza Pyramids
The Giza pyramid complex ( ar, مجمع أهرامات الجيزة), also called the Giza necropolis, is the site on the Giza Plateau in Greater Cairo, Egypt that includes the Great Pyramid of Giza, the Pyramid of Khafre, and the Pyramid of Menkaure, along with their associated pyramid complexes and the Great Sphinx of Giza. All were built during the Fourth Dynasty of the Old Kingdom of Ancient Egypt, between 2600 and 2500 BC. The site also includes several cemeteries and the remains of a workers' village. The site is at the edges of the Western Desert, approximately west of the Nile River in the city of Giza, and about southwest of the city centre of Cairo. Along with nearby Memphis, the site was inscribed on the UNESCO World Heritage List in 1979. The Great Pyramid and the Pyramid of Khafre are the largest pyramids built in ancient Egypt, and they have historically been common as emblems of Ancient Egypt in the Western imagination. They were popularised in Hellenist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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