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Sergius Orata
Caius Sergius Orata ( fl. c. 95 BC) was an Ancient Roman who was a successful merchant, inventor and hydraulic engineer. He is credited with inventing the cultivation of oysters and refinement to the hypocaust method of heating a building to provide in addition, heated water for bathing. Origins of his name The writer Festus noted "The Orata", the gilt headed bream, "is a kind of fish so called for its golden color (''aurata'', "golden," also spelled ''orata'')." ... "Because of this, it's said about the very wealthy Sergius that they called him ''orata'', because he wore two big rings of gold. Some authorities assert that his nickname just comes from the commercialization of those fishes." Biography Sergius was well known to his contemporaries for the breeding and commercialization of oysters, of which he was a noted innovator. Orata wanted to take advantage of the wealthy Romans' liking for shellfish as food, so he developed many new techniques for breeding oysters. This inc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alma-Tadema A Favourite Custom 1909 Tate Britain
Alma-Tadema is a surname. Notable people with the surname include: * Lawrence Alma-Tadema (1836–1912), Dutch painter * Laura Theresa Alma-Tadema (1852-1909), English painter and second wife of Sir Lawrence * Laurence Alma-Tadema (1865–1940), novelist and poet; Sir Lawrence's first daughter * Anna Alma-Tadema (1867–1943), painter; Sir Lawrence's second daughter See also * Steinway Alma Tadema, a special version of the Steinway D-274 D-274 (or D) is the model name of a concert grand piano, the flagship of the Steinway & Sons piano company,Fine, Larry, ''The Piano Book: Buying & Owning a New or Used Piano'', Third Edition, Boston: Brookside Press 1994 first built in 1884. It is ... concert piano, designed by Sir Lawrence {{surname, Alma-Tadema Compound surnames ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heating, Ventilation, And Air Conditioning
Heating, ventilation, and air conditioning (HVAC) is the use of various technologies to control the temperature, humidity, and purity of the air in an enclosed space. Its goal is to provide thermal comfort and acceptable indoor air quality. HVAC system design is a subdiscipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics, and heat transfer. "Refrigeration" is sometimes added to the field's abbreviation as HVAC&R or HVACR, or "ventilation" is dropped, as in HACR (as in the designation of HACR-rated circuit breakers). HVAC is an important part of residential structures such as single family homes, apartment buildings, hotels, and senior living facilities; medium to large industrial and office buildings such as skyscrapers and hospitals; vehicles such as cars, trains, airplanes, ships and submarines; and in marine environments, where safe and healthy building conditions are regulated with respect to temperature and humidity, using fresh ai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancient Roman Merchants
Ancient history is a time period from the beginning of writing and recorded human history to as far as late antiquity. The span of recorded history is roughly 5,000 years, beginning with the Sumerian cuneiform script. Ancient history covers all continents inhabited by humans in the period 3000 BCAD 500. The three-age system periodizes ancient history into the Stone Age, the Bronze Age, and the Iron Age, with recorded history generally considered to begin with the Bronze Age. The start and end of the three ages varies between world regions. In many regions the Bronze Age is generally considered to begin a few centuries prior to 3000 BC, while the end of the Iron Age varies from the early first millennium BC in some regions to the late first millennium AD in others. During the time period of ancient history, the world population was already exponentially increasing due to the Neolithic Revolution, which was in full progress. While in 10,000 BC, the world population stood ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancient Roman Civil Engineers
Ancient history is a time period from the beginning of writing and recorded human history to as far as late antiquity. The span of recorded history is roughly 5,000 years, beginning with the Sumerian cuneiform script. Ancient history covers all continents inhabited by humans in the period 3000 BCAD 500. The three-age system periodizes ancient history into the Stone Age, the Bronze Age, and the Iron Age, with recorded history generally considered to begin with the Bronze Age. The start and end of the three ages varies between world regions. In many regions the Bronze Age is generally considered to begin a few centuries prior to 3000 BC, while the end of the Iron Age varies from the early first millennium BC in some regions to the late first millennium AD in others. During the time period of ancient history, the world population was already exponentially increasing due to the Neolithic Revolution, which was in full progress. While in 10,000 BC, the world population stood at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1st-century BC Romans
The 1st century was the century spanning AD 1 ( I) through AD 100 ( C) according to the Julian calendar. It is often written as the or to distinguish it from the 1st century BC (or BCE) which preceded it. The 1st century is considered part of the Classical era, epoch, or historical period. The 1st century also saw the appearance of Christianity. During this period, Europe, North Africa and the Near East fell under increasing domination by the Roman Empire, which continued expanding, most notably conquering Britain under the emperor Claudius ( AD 43). The reforms introduced by Augustus during his long reign stabilized the empire after the turmoil of the previous century's civil wars. Later in the century the Julio-Claudian dynasty, which had been founded by Augustus, came to an end with the suicide of Nero in AD 68. There followed the famous Year of Four Emperors, a brief period of civil war and instability, which was finally brought to an end by Vespasian, ninth Roman em ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dictionary Of Greek And Roman Biography And Mythology
The ''Dictionary of Greek and Roman Biography and Mythology'' (1849, originally published 1844 under a slightly different title) is an encyclopedia/biographical dictionary. Edited by William Smith, the dictionary spans three volumes and 3,700 pages. It is a classic work of 19th-century lexicography. The work is a companion to Smith's ''Dictionary of Greek and Roman Antiquities'' and '' Dictionary of Greek and Roman Geography''. Authors and scope The work lists thirty-five authors in addition to the editor, who was also the author of the unsigned articles. The other authors were classical scholars, primarily from Oxford, Cambridge, Rugby School, and the University of Bonn, but some were from other institutions. Many of the mythological entries were the work of the German expatriate Leonhard Schmitz, who helped to popularise German classical scholarship in Britain. With respect to biographies, Smith intended to be comprehensive. In the preface, he writes: Much of the value ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sergia Gens
The gens Sergia was a patrician family at ancient Rome, which held the highest offices of the Roman state from the first century of the Republic until imperial times. The first of the Sergii to obtain the consulship was Lucius Sergius Fidenas in 437 BC. Despite long and distinguished service, toward the end of the Republic the reputation of this gens suffered as a result of the conspiracy of Catiline.''Dictionary of Greek and Roman Biography and Mythology'', vol. III, p. 787 ("Sergia Gens"). Origin The Sergii claimed descent from Sergestus, one of the Trojans who came to Italy with Aeneas, a tradition mentioned by Vergil in the Aeneid. The etymology of the nomen ''Sergius'' is problematic. Chase hesitantly suggests a connection with the praenomen ''Servius'', probably from an old Latin root meaning to preserve or keep safe. He classifies the nomen with other gentilicia that either originated at Rome, or cannot be shown to have come from anywhere else. However, the cognomen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypocaust
A hypocaust ( la, hypocaustum) is a system of central heating in a building that produces and circulates hot air below the floor of a room, and may also warm the walls with a series of pipes through which the hot air passes. This air can warm the upper floors as well. The word derives from the Ancient Greek meaning "under" and , meaning "burnt" (as in ''caustic''). The earliest reference to such a system suggests that the temple of Ephesus in 350 BC was heated in this manner, although Vitruvius attributes its invention to Sergius Orata in c. 80 BC. Its invention improved the hygiene and living conditions of citizens, and was a forerunner of modern central heating. Roman operation Hypocausts were used for heating hot baths and other public buildings in Ancient Rome. They were also used in private homes. It was a must for the villas of the wealthier merchant class throughout the Roman Empire. The ruins of Roman hypocausts have been found throughout Europe (for example in Ital ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Underfloor Heating
Underfloor heating and cooling is a form of central heating and cooling that achieves indoor climate control for thermal comfort using hydronic or electrical heating elements embedded in a floor. Heating is achieved by conduction, radiation and convection. Use of underfloor heating dates back to the Neoglacial and Neolithic periods. History Underfloor heating has a long history back into the Neoglacial and Neolithic periods. Archeological digs in Asia and the Aleutian islands of Alaska reveal how the inhabitants drafted smoke from fires through stone covered trenches which were excavated in the floors of their subterranean dwellings. The hot smoke heated the floor stones and the heat then radiated into the living spaces. These early forms have evolved into modern systems using fluid filled pipes or electrical cables and mats. Below is a chronological overview of under floor heating from around the world. Description Modern underfloor heating systems use either electrical r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vitruvius
Vitruvius (; c. 80–70 BC – after c. 15 BC) was a Roman architect and engineer during the 1st century BC, known for his multi-volume work entitled ''De architectura''. He originated the idea that all buildings should have three attributes: , , and ("strength", "utility", and "beauty"). These principles were later widely adopted in Roman architecture. His discussion of perfect proportion in architecture and the human body led to the famous Renaissance drawing of the ''Vitruvian Man'' by Leonardo da Vinci. Little is known about Vitruvius' life, but by his own descriptionDe Arch. Book 1, preface. section 2. he served as an artilleryman, the third class of arms in the Roman military offices. He probably served as a senior officer of artillery in charge of ''doctores ballistarum'' (artillery experts) and ''libratores'' who actually operated the machines. As an army engineer he specialized in the construction of ''ballista'' and '' scorpio'' artillery war machines for sieges. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imbrex And Tegula
The imbrex and tegula (plural imbrices and tegulae) were overlapping roof tiles used in ancient Greek and Roman architecture as a waterproof and durable roof covering. They were made predominantly of fired clay, but also sometimes of marble, bronze or gilt. In Rome, they replaced wooden shingles, and were used on almost every type of structure, from humble outbuildings to grand temples and public facilities. The tegula (Greek solenes) was a plain flat tile, or a flat tile with raised edges, which was laid flat upon the roof, while the imbrex (Greek kalupter) was a semi-cylindrical roofing tile, like a half-pipe, laid over the joints between the tegulae. When well-made and properly imbricated (overlapped), there was little need for further waterproofing or sealant. The roofing area was generally surrounded by antefixae, which were often decorated and had several decorative anthemia to cover each end row imbrex. The concept of imbrex and tegula roofing in pitched roof constru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
