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Leonardo's Crossbow
Leonardo's crossbow designs are a series of shooting weapon schematics designed by Leonardo da Vinci that are in the ''Codex Atlanticus.'' One version, a self-spanning infantry weapon called the ''Rapid Fire Crossbow'' (''Balestra Veloce'' in Italian), is found on sheets 143r, 153r and 155r. The other is the ''Giant Crossbow'' (''Balestra Gigante'' in Italian) design intended to be a mounted siege weapon found on sheet 149a in the Codex. The creation of the large design is linked to Ludovico Sforza, an Italian prince in the Renaissance era. Given the constant warfare in the Italian Peninsula at this time, he wanted to expand and advance both his military and the territory he governed in the Milan region. To do so, he wanted to update the current treatise on military engineering by Roberto Valturio. Leonardo responded by writing Sforza a letter that included a number of innovative machine designs with one of them being the ''Giant Crossbow.'' Leonardo also highlighted in the let ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leonardo Crossbow
Leonardo is a masculine given name, the Italian, Spanish, and Portuguese equivalent of the English language, English, German language, German, and Dutch language, Dutch name, Leonard. People Notable people with the name include: * Leonardo da Vinci (1452–1519), Italian Renaissance scientist, inventor, engineer, sculptor, and painter Artists * Leonardo Schulz Cardoso, Brazilian singer * Leandro e Leonardo, Emival Eterno da Costa (born 1963), Brazilian singer known as Leonardo * Leonardo de Mango (1843–1930), Italians, Italian-born Turkish painter * Leonardo DiCaprio (born 1974), American actor * Leonardo Pieraccioni (born 1965), Italian actor and director Athletes * Leonardo Araújo (born 1969), usually known as Leonardo, Brazilian World Cup-winning footballer, and former sporting director of Paris Saint Germain * Leonardo Fioravanti (surfer), Leonardo Fioravanti (born 1997), Italian surfer * Leonardo Lourenço Bastos (born 1975), Brazilian footballer * Leonardo Bittenc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Science And Inventions Of Leonardo Da Vinci
Leonardo da Vinci (1452–1519) was an Italian polymath, regarded as the epitome of the "Renaissance Man", displaying skills in numerous diverse areas of study. Whilst most famous for his paintings such as the ''Mona Lisa'' and the ''Last Supper'', Leonardo is also renowned in the fields of civil engineering, chemistry, geology, geometry, hydrodynamics, mathematics, mechanical engineering, optics, physics, pyrotechnics, and zoology. While the full extent of his scientific studies has only become recognized in the last 150 years, during his lifetime he was employed for his engineering and skill of invention. Many of his designs, such as the movable dikes to protect Venice from invasion, proved too costly or impractical. Some of his smaller inventions entered the world of manufacturing unheralded. As an engineer, Leonardo conceived ideas vastly ahead of his own time, conceptually inventing the parachute, the helicopter, an armored fighting vehicle, the use of concentrated solar power ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Repeating Crossbow
The repeating crossbow (), also known as the repeater crossbow, and the Zhuge crossbow (, also romanized Chu-ko-nu) due to its association with the Three Kingdoms-era strategist Zhuge Liang (181–234 AD), is a crossbow invented during the Warring States period in China that combined the bow spanning, bolt placing, and shooting actions into one motion. The earliest archaeological evidence of the repeating crossbow is found in the state of Chu, but it uses a pistol grip that is different from the later and more commonly known Ming dynasty design. Although the repeating crossbow was in use throughout most of Chinese history until the late Qing dynasty, it was generally regarded as a non-military weapon suited for women, defending households against robbers, and even hunting. History A non- recurve repeating crossbow. Ones used for war would be recurved Naval battle scroll depicting Korean soldiers utilizing repeating recurve crossbows during the Imjin War According ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polybolos
The polybolos (the name means "multi-thrower" in Greek) was an ancient Greek repeating ballista, reputedly invented by Dionysius of Alexandria (a 3rd-century BC Greek engineer at the Rhodes arsenal,) and used in antiquity. The polybolos was not a crossbow since it used a torsion mechanism, drawing its power from twisted sinew-bundles. Philo of Byzantium ( 280 BC – 220 BC) encountered and described a weapon similar to the polybolos, a catapult that could fire again and again without a need for manual reloading. Philo left a detailed description of the gears that powered its chain drive (the oldest known application of such a mechanism) and that placed bolt after bolt into its firing slot. Design The polybolos would have differed from an ordinary ballista in that it had a wooden hopper magazine, capable of holding several dozen bolts, that was positioned over the mensa (the cradle that holds the bolt prior to firing). The mechanism is unique in that it is driven by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lever Action
The toggle-link action used in the iconic Winchester Model 1873 rifle, one of the most famous lever-action firearms Lever-action is a type of action for repeating firearms that uses a manually operated cocking handle located around the trigger guard area (often incorporating it) that pivots forward to move the bolt via internal linkages, which will feed and extract cartridges into and out of the chamber, and cock the firing pin mechanism. This contrasts to other type of repeating actions such as the bolt-action, pump-action, semi-automatic, or automatic/selective-fire actions. A firearm using this operating mechanism is colloquially referred to as a levergun. Most lever-action firearms are rifles, but some lever-action shotguns and a few pistols have been made. The Winchester Model 1873 rifle is one of the most famous lever-action firearms, but many manufacturers (notably Henry and Marlin) also produce lever-action rifles. Even Colt's Mfg. Co. produced the 6403 lever-action C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cheiroballistra
The ''cheiroballistra'' ( el, χειροβαλλίστρα) or ''manuballista'' (Latin), which translates in all its forms to "hand ballista", was an imperial-era Roman siege engine. Designed by Hero of Alexandria and mostly composed of metal (the spring mechanism and the skeins), it shot bolts that were smaller than those in other forms of ballistae and generally made of metal. It was the next major improvement after the '' scorpio''.Warry, J. (1995). ''Warfare in the Classical World''. ''P. 178'' Salamander Books Ltd., London: United Kingdom. . The name of the weapon is composed of the Greek words for 'hand' and 'shooter' implying that portable versions might also have existed, similar to crossbows. See also * 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: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IMDb
IMDb (an abbreviation of Internet Movie Database) is an online database of information related to films, television series, home videos, video games, and streaming content online – including cast, production crew and personal biographies, plot summaries, trivia, ratings, and fan and critical reviews. IMDb began as a fan-operated movie database on the Usenet group "rec.arts.movies" in 1990, and moved to the Web in 1993. It is now owned and operated by IMDb.com, Inc., a subsidiary of Amazon. the database contained some million titles (including television episodes) and million person records. Additionally, the site had 83 million registered users. The site's message boards were disabled in February 2017. Features The title and talent ''pages'' of IMDb are accessible to all users, but only registered and logged-in users can submit new material and suggest edits to existing entries. Most of the site's data has been provided by these volunteers. Registered users with a prov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Channel 4
Channel 4 is a British free-to-air public broadcast television network operated by the state-owned enterprise, state-owned Channel Four Television Corporation. It began its transmission on 2 November 1982 and was established to provide a fourth television service in the United Kingdom. At the time, the only other channels were the television licence, licence-funded BBC One and BBC Two, and a single commercial broadcasting network ITV (TV network), ITV. The network's headquarters are based in London and Leeds, with creative hubs in Glasgow and Bristol. It is publicly owned and advertising-funded; originally a subsidiary of the Independent Broadcasting Authority (IBA), the station is now owned and operated by Channel Four Television Corporation, a public corporation of the Department for Digital, Culture, Media and Sport, which was established in 1990 and came into operation in 1993. Until 2010, Channel 4 did not broadcast in Wales, but many of its programmes were re-broadcast ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leonardo3 Museum
Leonardo3 is an interactive museum and exhibition center at Galleria Vittorio Emanuele II, Piazza della Scala, Milano, Italy. The museum is devoted to Italy’s notable personality Leonardo da Vinci and portrays him both as an artist and inventor. Description The Leonardo3 museum has physical models and machines based on daVinci's designs and a digital version of the Codex Atlanticus, which contains the notes and sketches of the inventor. The museum has the provision to explore independently or with many hands-on displays, touch screens, or with the help of audio guides in English, French, Chinese, Italian, Russian, German, and Spanish and can interact with more than 200 digital reconstructions. The museum has received an Award of excellence from the President of the Italian Republic. Exhibits The museum exhibits working models of da Vinci’s machine and his musical instruments like Rapid-fire Crossbow, Mechanical Eagle, Mechanical Submarine, Mechanical Dragonfly, Great Ki ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Milan
Milan ( , , Lombard: ; it, Milano ) is a city in northern Italy, capital of Lombardy, and the second-most populous city proper in Italy after Rome. The city proper has a population of about 1.4 million, while its metropolitan city has 3.26 million inhabitants. Its continuously built-up urban area (whose outer suburbs extend well beyond the boundaries of the administrative metropolitan city and even stretch into the nearby country of Switzerland) is the fourth largest in the EU with 5.27 million inhabitants. According to national sources, the population within the wider Milan metropolitan area (also known as Greater Milan), is estimated between 8.2 million and 12.5 million making it by far the largest metropolitan area in Italy and one of the largest in the EU.* * * * Milan is considered a leading alpha global city, with strengths in the fields of art, chemicals, commerce, design, education, entertainment, fashion, finance, healthcar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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