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Archimedes' Screw
The Archimedes' screw, also known as the Archimedean screw, hydrodynamic screw, water screw or Egyptian screw, is one of the earliest documented hydraulic machines. It was so-named after the Greek mathematician Archimedes who first described it around 234 BC, although the device had been developed in Egypt earlier in the century. It is a reversible hydraulic machine that can be operated both as a pump or a power generator. As a machine used for lifting water from a low-lying body of water into irrigation ditches, water is lifted by turning a screw-shaped surface inside a pipe. In the modern world, Archimedes screw pumps are widely used in wastewater treatment plants and for dewatering low-lying regions. Run in reverse, Archimedes screw turbines act as a new form of small hydroelectric powerplant that can be applied even in low head sites. Such generators operate in a wide range of flows (0.01 m^3/s to 14.5 m^3/s) and heads (0.1 m to 10 m), including low heads and moderate flow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Assyria
Assyria (Neo-Assyrian cuneiform: , ''māt Aššur'') was a major ancient Mesopotamian civilization that existed as a city-state from the 21st century BC to the 14th century BC and eventually expanded into an empire from the 14th century BC to the 7th century BC. Spanning from the early Bronze Age to the late Iron Age, modern historians typically divide ancient Assyrian history into the Early Assyrian period, Early Assyrian ( 2600–2025 BC), Old Assyrian period, Old Assyrian ( 2025–1364 BC), Middle Assyrian Empire, Middle Assyrian ( 1363–912 BC), Neo-Assyrian Empire, Neo-Assyrian (911–609 BC), and Post-imperial Assyria, post-imperial (609 BC– AD 240) periods, based on political events and gradual changes in language. Assur, the first Assyrian capital, was founded 2600 BC, but there is no evidence that the city was independent until the collapse of the Third Dynasty of Ur, in the 21st century BC, when a line of independent kings starting with Puzur-Ashur I began rulin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diodorus
Diodorus Siculus or Diodorus of Sicily (; 1st century BC) was an ancient Greek historian from Sicily. He is known for writing the monumental universal history '' Bibliotheca historica'', in forty books, fifteen of which survive intact, between 60 and 30 BC. The history is arranged in three parts. The first covers mythic history up to the destruction of Troy, arranged geographically, describing regions around the world from Egypt, India and Arabia to Europe. The second covers the time from the Trojan War to the death of Alexander the Great. The third covers the period to about 60 BC. ''Bibliotheca'', meaning 'library', acknowledges that he was drawing on the work of many other authors. Life According to his own work, he was born in Agyrium in Sicily (now called Agira). With one exception, antiquity affords no further information about his life and doings beyond his written works. Only Jerome, in his '' Chronicon'' under the "year of Abraham 1968" (49 BC), writes, "D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Peter Oleson
John Peter Oleson (born 1946) is a Canadian classical archaeologist and historian of ancient technology. His main interests are the Roman Near East, maritime archaeology (particularly Roman harbours), and ancient technology, especially hydraulic technology, water-lifting devices, and Roman concrete construction. Life Born in 1946 in Hackensack, New Jersey, United States, Oleson was schooled at the Loomis School in Windsor, Connecticut (1960–64). He received his BA in Classics at Harvard University in 1967, where he studied with Herbert Bloch. Oleson received his MA (1971) and PhD (1973) in Classical Archaeology at Harvard University, working in particular with George M.A. Hanfmann and David Mitten. From 1973–1976 Oleson taught in the Classics Department of Florida State University, Tallahassee. Since 1976 he has been a member of the Greek and Roman Studies Department of the University of Victoria, Canada, where he was appointed Distinguished Professor in 2003. He ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Classical Antiquity
Classical antiquity, also known as the classical era, classical period, classical age, or simply antiquity, is the period of cultural History of Europe, European history between the 8th century BC and the 5th century AD comprising the interwoven civilizations of ancient Greece and ancient Rome, Rome known together as the Greco-Roman world, centered on the Mediterranean Basin. It is the period during which ancient Greece and Rome flourished and had major influence throughout much of Europe, North Africa, and West Asia. Classical antiquity was succeeded by the period now known as late antiquity. Conventionally, it is often considered to begin with the earliest recorded Homeric Greek, Epic Greek poetry of Homer (8th–7th centuries BC) and end with the fall of the Western Roman Empire in 476 AD. Such a wide span of history and territory covers many disparate cultures and periods. ''Classical antiquity'' may also refer to an idealized vision among later people of what was, in Ed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Navy
A navy, naval force, military maritime fleet, war navy, or maritime force is the military branch, branch of a nation's armed forces principally designated for naval warfare, naval and amphibious warfare; namely, lake-borne, riverine, littoral zone, littoral, or ocean-borne combat operations and related functions. It includes anything conducted by surface Naval ship, ships, amphibious warfare, amphibious ships, submarines, and seaborne naval aviation, aviation, as well as ancillary support, communications, training, and other fields. The strategic offensive role of a navy is Power projection, projection of force into areas beyond a country's shores (for example, to protect Sea lane, sea-lanes, deter or confront piracy, ferry troops, or attack other navies, ports, or shore installations). The strategic defensive purpose of a navy is to frustrate seaborne projection-of-force by enemies. The strategic task of a navy also may incorporate nuclear deterrence by use of submarine-launche ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Syracusia
''Syracusia'' (, ''syrakousía'', literally "of Syracuse") was an ancient Greek ship sometimes claimed to be the largest transport ship of antiquity. She was reportedly too big for any port in Sicily, and thus only sailed once from Syracuse in Sicily to Alexandria in the Ptolemaic Kingdom of Egypt, whereupon she was given as a present to Ptolemy III Euergetes. The exact dimension of Syracusia is unknown; Michael Lahanas put it at 55 m long, 14 m wide, and 13 m high. General characteristics ''Syracusia'' was designed by Archimedes and built around 240 BC by Archias of Corinth on the orders of Hieron II of Syracuse. The historian Moschion of Phaselis said that ''Syracusia'' could carry a cargo of some 1600 to 1800 tons and a capacity of 1,942 passengers. She reputedly bore more than 200 soldiers, as well as a catapult. She sailed only once to berth in Alexandria, where she was later given to Ptolemy (Ptolemaios) III Euergetes of Egypt and renamed ''Alexandreia'' (, literally ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hiero II Of Syracuse
Hiero II (; also Hieron ; ; c. 308 BC – 215 BC) was the Greek tyrant of Syracuse, Greek Sicily, from 275 to 215 BC, and the illegitimate son of a Syracusan noble, Hierocles, who claimed descent from Gelon. He was a former general of Pyrrhus of Epirus and an important figure of the First Punic War. He figures in the story of famed thinker Archimedes shouting "Eureka". Rise to power When Pyrrhus left Sicily (275 BC) the Syracusan army and citizens appointed Hiero commander-in-chief. He strengthened his position by marrying the daughter of Leptines, one of the leading citizen of Syracuse. Hiero was later able to prove his military worth against the Mamertines, a body of mercenaries from Campania who had been employed by Agathocles, the late tyrant of Syracuse, and seized the stronghold of Messina, which they used as a base of operations to harass the Greeks around them. They were finally defeated in a pitched battle near Mylae along the Longanus river by Hiero, who was onl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Athenaeus
Athenaeus of Naucratis (, or Nαυκράτιος, ''Athēnaios Naukratitēs'' or ''Naukratios''; ) was an ancient Greek rhetorician and Grammarian (Greco-Roman), grammarian, flourishing about the end of the 2nd and beginning of the 3rd century AD. The ''Suda'' says only that he lived in the times of Marcus Aurelius, but the contempt with which he speaks of Commodus, who died in 192, implies that he survived that emperor. He was a contemporary of Adrantus. Athenaeus himself states that he was the author of a treatise on the ''thratta'', a type of fish mentioned by Archippus (poet), Archippus and other comic poets, and of a history of the Syrian kings. Both works are lost. Of his works, only the fifteen-volume ''Deipnosophistae'' mostly survives. The ''Deipnosophistae'' The ''Deipnosophistae'', which means 'dinner-table philosophers', survives in fifteen books. The first two books, and parts of the third, eleventh and fifteenth, are extant only in epitome, but otherwise the w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hellenistic Period
In classical antiquity, the Hellenistic period covers the time in Greek history after Classical Greece, between the death of Alexander the Great in 323 BC and the death of Cleopatra VII in 30 BC, which was followed by the ascendancy of the Roman Empire, as signified by the Battle of Actium in 31 BC and the Roman conquest of Ptolemaic Egypt the following year, which eliminated the last major Hellenistic kingdom. Its name stems from the Ancient Greek word ''Hellas'' (, ''Hellás''), which was gradually recognized as the name for Greece, from which the modern historiographical term ''Hellenistic'' was derived. The term "Hellenistic" is to be distinguished from "Hellenic" in that the latter refers to Greece itself, while the former encompasses all the ancient territories of the period that had come under significant Greek influence, particularly the Hellenized Middle East, after the conquests of Alexander the Great. After the Macedonian conquest of the Achaemenid Empire in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Egypt
Egypt ( , ), officially the Arab Republic of Egypt, is a country spanning the Northeast Africa, northeast corner of Africa and Western Asia, southwest corner of Asia via the Sinai Peninsula. It is bordered by the Mediterranean Sea to northern coast of Egypt, the north, the Gaza Strip of Palestine and Israel to Egypt–Israel barrier, the northeast, the Red Sea to the east, Sudan to Egypt–Sudan border, the south, and Libya to Egypt–Libya border, the west; the Gulf of Aqaba in the northeast separates Egypt from Jordan and Saudi Arabia. Cairo is the capital, list of cities and towns in Egypt, largest city, and leading cultural center, while Alexandria is the second-largest city and an important hub of industry and tourism. With over 109 million inhabitants, Egypt is the List of African countries by population, third-most populous country in Africa and List of countries and dependencies by population, 15th-most populated in the world. Egypt has one of the longest histories o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Technology And Culture
''Technology and Culture'' is a quarterly academic journal founded in 1959. It is an official publication of the Society for the History of Technology (SHOT), whose members routinely refer to it as "T&C". Besides scholarly articles and critical essays, the journal publishes reviews of books and museum exhibitions. The journal occasionally publishes thematic issues; topics include patents, gender and technology, and ecology. ''Technology and Culture'' has had three past editors-in-chief: Melvin Kranzberg (1959–1981), Robert C. Post (1982–1995), and John M. Staudenmaier (1996–2010). From 2011 to 2021, the journal was edited at the University of Oklahoma by Suzanne Moon. Its current editor in chief is Ruth Oldenziel at the Eindhoven University of Technology. Managing editors have included Joan Mentzer, Joseph M. Schultz, David M. Lucsko, and Peter Soppelsa. In its inaugural issue, editor Melvin Kranzberg set out a threefold educational mission for the journal: "to promote the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
