Carroballista
Carroballista was an ancient, cart-mounted ballista, a type of mobile field artillery. According to the Roman author Vegetius (''Epitoma rei militaris'' II.25), each legion had 55 ''carroballistae'' (one per ''centuria'') which were arrow/bolt-shooter of the ''cheiroballistra'' type. Vegetius tells us that each ''carroballista'' was carried by mules and operated by one ''contubernium'' (i.e., eight soldiers commanded by one ''decanus''). Surviving representation of a ''carroballista'' are from the bas-reliefs of Trajan's Column (Scene XL and Scenes LXV/LXVI) and the Column of Marcus Aurelius. Structure The structure of the ''carroballista'' machine is identical to that of the ''cheiroballistra'' or ''manuballista''. It seems that the technical innovations introduced by the adoption of the ''cheiroballistra'' by the Roman army at the end of the 1st century AD made the use of the cart possible. In fact, the light but stout metal spring-frame and the wider space in the frontal pa ...
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Ballista
The ballista (Latin, from Greek βαλλίστρα ''ballistra'' and that from βάλλω ''ballō'', "throw"), plural ballistae, sometimes called bolt thrower, was an ancient missile weapon that launched either bolts or stones at a distant target. Developed from earlier Greek weapons, it relied upon different mechanics, using two levers with torsion springs instead of a tension prod (the bow part of a modern crossbow). The springs consisted of several loops of twisted skeins. Early versions projected heavy darts or spherical stone projectiles of various sizes for siege warfare. It developed into a smaller precision weapon, the '' scorpio'', and possibly the '' polybolos''. Greek weapon The early ballistae in Ancient Greece were developed from two weapons called oxybeles and gastraphetes. The gastraphetes ('belly-bow') was a handheld crossbow. It had a composite prod and was spanned by bracing the front end of the weapon against the ground while placing the end of a ...
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Trajan's Column
Trajan's Column ( it, Colonna Traiana, la, Columna Traiani) is a Roman triumphal column in Rome, Italy, that commemorates Roman emperor Trajan's victory in the Trajan's Dacian Wars, Dacian Wars. It was probably constructed under the supervision of the architect Apollodorus of Damascus at the order of the Roman Senate. It is located in Trajan's Forum, north of the Roman Forum. Completed in Anno Domini, AD 113, the freestanding column is most famous for its spiral bas relief, which depicts the Trajan's Dacian Wars, wars between the Romans and Dacians (101–102 and 105–106). Its design has inspired numerous victory columns, both ancient and modern. The structure is about in height, including its large pedestal. The shaft is made from a series of 20 colossal Carrara marble Drum (architecture), drums, each weighing about 32 tons, with a diameter of . The frieze winds around the shaft 23 times. Inside the shaft, a spiral staircase of 185 steps provides access to a viewing deck at ...
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046 Conrad Cichorius, Die Reliefs Der Traianssäule, Tafel XLVI (Ausschnitt 01)
46 may refer to: * 46 (number) * ''46'' (album), a 1983 album by Kino * "Forty Six", a song by Karma to Burn from the album ''Appalachian Incantation'', 2010 * One of the years 46 BC, AD 46, 1946, 2046 In contemporary history, the third millennium of the anno Domini or Common Era in the Gregorian calendar is the current millennium spanning the years 2001 to 3000 (21st century, 21st to 30th century, 30th centuries). Ongoing futures studies se ...

Projectile Weapons
A ranged weapon is any weapon that can engage targets beyond hand-to-hand distance, i.e. at distances greater than the physical reach of the user holding the weapon itself. The act of using such a weapon is also known as shooting. It is sometimes also called projectile weapon or missile weapon because it typically works by launching solid projectiles ("missiles"), though technically a fluid-projector (which throws out pressurized streams of liquid or even gas) and a directed-energy weapon (which does not involve any tangible projectile) are also ranged weapons. In contrast, a weapon intended to be used in hand-to-hand combat is called a melee weapon. Ranged weapons give the attacker an advantage, since the target is often getting hit from beyond immediate visual range, therefore making it more difficult for the defenders to react and hitting back effectively. It also puts distance between the attacker and the opponent, which is a safer combat option since the close physical ...
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Roman Siege Engines
Roman siege engines were, for the most part, adapted from Hellenistic siege technology. Relatively small efforts were made to develop the technology; however, the Romans brought an unrelentingly aggressive style to siege warfareGoldsworthy 2000: 144 that brought them repeated success. Up to the first century BC, the Romans utilized siege weapons only as required and relied for the most part on ladders, towers and rams to assault a fortified town. ''Ballistae'' were also employed, but held no permanent place within a legion's roster, until later in the republic, and were used sparingly. Julius Caesar took great interest in the integration of advanced siege engines, organizing their use for optimal battlefield efficiency.Keppie 1984: 99 Army engineering corps To facilitate this organization and the army's self-sufficiency, an engineering corps was developed. An officer of engineers, or ''praefectus fabrum'', is referenced in armies of the late republic, but this post is n ...
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De Rebus Bellicis
''De rebus bellicis'' ("On the Things of Wars") is an anonymous work of the 4th or 5th century which suggests remedies for the military and financial problems in the Roman Empire, including a number of fanciful war machines. It was written after the death of Constantine I in 337 (it is explicitly stated that Constantine was dead when the work was written) and before the fall of the Western Roman Empire in 476. Some researchers suggest that it may refer to the Battle of Adrianople of 378 (it refers to the serious threat posed by the barbarian tribes to the empire), or even the death of Emperor Theodosius I in 395, as it uses the plural form of the word "princeps", the title of the emperor, which may refer to the split of the Empire between Honorius and Arcadius after the death of Theodosius. Editions *''Anonymi Auctoris De Rebus Bellicis''. recensvit Robert I. Ireland (Bibliotheca scriptorvm Graecorvm et Romanorvm Tevbneriana), Lipsiae, 1984. * "Anónimo Sobre Asuntos Militar ...
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Scientific American
''Scientific American'', informally abbreviated ''SciAm'' or sometimes ''SA'', is an American popular science magazine. Many famous scientists, including Albert Einstein and Nikola Tesla, have contributed articles to it. In print since 1845, it is the oldest continuously published magazine in the United States. ''Scientific American'' is owned by Springer Nature, which in turn is a subsidiary of Holtzbrinck Publishing Group. History ''Scientific American'' was founded by inventor and publisher Rufus Porter (painter), Rufus Porter in 1845 as a four-page weekly newspaper. The first issue of the large format newspaper was released August 28, 1845. Throughout its early years, much emphasis was placed on reports of what was going on at the United States Patent and Trademark Office, U.S. Patent Office. It also reported on a broad range of inventions including perpetual motion machines, an 1860 device for buoying vessels by Abraham Lincoln, and the universal joint which now can be found ...
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Roman Army
The Roman army (Latin: ) was the armed forces deployed by the Romans throughout the duration of Ancient Rome, from the Roman Kingdom (c. 500 BC) to the Roman Republic (500–31 BC) and the Roman Empire (31 BC–395 AD), and its medieval continuation, the Eastern Roman Empire. It is thus a term that may span approximately 2,205 years (753 BC–1453 AD), during which the Roman armed forces underwent numerous permutations in size, composition, organisation, equipment and tactics, while conserving a core of lasting traditions. Historical overview Early Roman army (c. 500 BC to c. 300 BC) The early Roman army was the armed forces of the Roman Kingdom and of the early Roman Republic. During this period, when warfare chiefly consisted of small-scale plundering raids, it has been suggested that the army followed Etruscan or Greek models of organisation and equipment. The early Roman army was based on an annual levy. The army consisted of 3,000 infantrymen and 300 cavalrymen ...
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Roman Carroballista, Column Of Marcus Aurelius, Rome, Italy
Roman or Romans most often refers to: *Rome, the capital city of Italy *Ancient Rome, Roman civilization from 8th century BC to 5th century AD *Roman people, the people of ancient Rome *''Epistle to the Romans'', shortened to ''Romans'', a letter in the New Testament of the Christian Bible Roman or Romans may also refer to: Arts and entertainment Music *Romans (band), a Japanese pop group * ''Roman'' (album), by Sound Horizon, 2006 * ''Roman'' (EP), by Teen Top, 2011 *"Roman (My Dear Boy)", a 2004 single by Morning Musume Film and television *Film Roman, an American animation studio * ''Roman'' (film), a 2006 American suspense-horror film * ''Romans'' (2013 film), an Indian Malayalam comedy film * ''Romans'' (2017 film), a British drama film * ''The Romans'' (''Doctor Who''), a serial in British TV series People *Roman (given name), a given name, including a list of people and fictional characters *Roman (surname), including a list of people named Roman or Romans *Ῥωμαῖ ...
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Column Of Marcus Aurelius
The Column of Marcus Aurelius ( la, Columna Centenaria Divorum Marci et Faustinae, it, Colonna di Marco Aurelio) is a Roman victory column in Piazza Colonna, Rome, Italy. It is a Doric column featuring a spiral relief: it was built in honour of Roman emperor Marcus Aurelius and modeled on Trajan's Column. Construction Because the original dedicatory inscription has been destroyed, it is not known whether it was built during the emperor's reign (on the occasion of the triumph over the Marcomanni, Quadi and Sarmatians in the year 176) or after his death in 180; however, an inscription found in the vicinity attests that the column was completed by 193. In terms of the topography of ancient Rome, the column stood on the north part of the Campus Martius, in the centre of a square. This square was either between the temple of Hadrian (probably the Hadrianeum) and the temple of Marcus Aurelius (dedicated by his son Commodus, of which nothing now remains – it was probably o ...
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031 Conrad Cichorius, Die Reliefs Der Traianssäule, Tafel XXXI (Ausschnitt 01)
31 may refer to: * 31 (number) Years * 31 BC * AD 31 * 1931 CE ('31) * 2031 CE ('31) Music * ''Thirty One'' (Jana Kramer album), 2015 * ''Thirty One'' (Jarryd James album), 2015 * "Thirty One", a song by Karma to Burn from the album ''Wild, Wonderful Purgatory'', 1999 Film and television * ''31'' (film), a 2016 horror film * 31 (Kazakhstan), a television channel * 31 Digital, an Australian video on demand service, and before 2017 an Australian community television channel from Brisbane, Queensland. Other uses * Thirty-one (card game) See also * * * * * Channel 31 (other) * Highway 31 (other) * Section 31 (other) * List of highways numbered 31 The following highways are numbered 31: International * Asian Highway 31 * European route E31 Australia * Hume Highway ** Hume Motorway ** Hume Freeway * - South Australia ** Gorge Road ** Little Para Road ** South Para Road ** Lyndoch Va ...