|
Talus (fortification)
In architecture, the talus is a feature of some late medieval castles, especially prevalent in crusader constructions. It consists of a battered (sloping) face at the base of a fortified wall. Feature The slope acts as an effective defensive measure in two ways. First, conventional siege equipment is less effective against a wall with a talus. Scaling ladders may be unable to reach the top of the walls and are also more easily broken due to the bending stresses caused by the angle they are forced to adopt. Siege towers cannot approach closer than the base of the talus, and their gangplank may be unable to cover the horizontal span of the talus, rendering them useless. Furthermore, defenders are able to drop rocks over the walls, which will shatter on the talus, spraying a hail of shrapnel into any attackers massed at the base of the wall. See also *Glacis *Counterscarp *Siege A siege is a military blockade of a city, or fortress, with the intent of conquering by attr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Krak Des Chevaliers04(js)
KMPS (910 AM) is a commercial radio station that is licensed to Hesperia, California and broadcasts to the Victor Valley area. It is owned by El Dorado Broadcasters and airs a Regional Mexican radio format with programming from La X 103.1. KMPS's offices and studios are in Hesperia; previously, they were on Hesperia Road in Victorville. The station's transmitter is located near Mesa Linda Street in Oak Hills. KMPS carried Los Angeles Angels baseball games before going silent in 2019. History The station signed on February 1, 1990 as KVVQ; initially, it broadcast middle of the road music and news/talk programming. On February 19, 2001, then-owner Infinity Broadcasting changed the call letters to KRAK; the call sign was formerly used by a well-known 50,000 watt country music station in Sacramento, which is now KHTK. On July 31, 2008, CBS Radio announced plans to sell its mid-size and small market stations (including KRAK) to focus more on major market clusters. However, such a sa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fragmentation (weaponry)
Fragmentation is the process by which the casing, shot, or other components of an anti-personnel weapon, bomb, barrel bomb, land mine, IED, artillery, mortar, tank gun, or autocannon shell, rocket, missile, grenade, etc. are dispersed and/or shattered by the detonation of the explosive filler. The correct term for these pieces is "fragmentation"; "shards" or "splinters" can be used for non-preformed fragments. Preformed fragments can be of various shapes (spheres, cubes, rods, etc.) and sizes, and are normally held rigidly within some form of matrix or body until the high explosive (HE) filling is detonated. The resulting high-velocity fragments produced by either method are the main lethal mechanisms of these weapons, rather than the heat or overpressure caused by detonation, although offensive grenades are often constructed without a frag matrix. These casing pieces are often incorrectly referred to as "shrapnel", particularly by non-military media sources. History The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Counterscarp
A scarp and a counterscarp are the inner and outer sides, respectively, of a ditch or moat used in fortifications. Attackers (if they have not bridged the ditch) must descend the counterscarp and ascend the scarp. In permanent fortifications the scarp and counterscarp may be encased in stone. In less permanent fortifications, the counterscarp may be lined with paling fence set at an angle so as to give no cover to the attackers but to make advancing and retreating more difficult. If an attacker succeeds in breaching a wall a coupure can be dug on the inside of the wall to hinder the forlorn hope, in which case the side of the ditch farthest from the breached wall and closest to the centre of the fortification is also called the counterscarp. Counterscarp gallery These are tunnels or "galleries" that have been built behind the counterscarp wall inside the moat or ditch. Each gallery is pierced with loopholes for musketry, so that attacking forces that enter the moat can be dire ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glacis
A glacis (; ) in military engineering is an artificial slope as part of a medieval castle or in bastion fort, early modern fortresses. They may be constructed of earth as a temporary structure or of stone in more permanent structure. More generally, a glacis is any slope, natural or artificial, which fulfils the above requirements. The etymology of this French word suggests a slope made dangerous with ice, hence the relationship with ''glacier''. A ''glacis plate'' is the sloped armour, sloped front-most section of the hull of a tank or other armoured fighting vehicle. Ancient fortifications A glacis could also appear in ancient fortresses, such as the one the ancient Egyptians built at Semna (Nubia), Semna in Nubia. Here it was used by them to prevent enemy siege engines from weakening defensive walls. Hillforts in Britain started to incorporate glacis around 350 BC. Those at Maiden Castle, Dorset, Maiden Castle, Dorset were high. Medieval fortifications Glacis, also call ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Derbent
Derbent (russian: Дербе́нт; lez, Кьвевар, Цал; az, Дәрбәнд, italic=no, Dərbənd; av, Дербенд; fa, دربند), formerly romanized as Derbend, is a city in Dagestan, Russia, located on the Caspian Sea. It is the southernmost city in Russia, and it is the second-most important city of Dagestan. Derbent occupies the narrow gateway between the Caspian Sea and the Caucasus Mountains connecting the Eurasian Steppe to the north and the Iranian Plateau to the south; covering an area of , with a population of roughly 120,000 residents. Derbent claims to be the oldest city in Russia, with historical documentation dating to the 8th century BC, making it one of the oldest continuously inhabited cities in the world. Due to its strategic location, over the course of history, the city changed ownership many times, particularly among the Persian, Arab, Mongol, Timurid, and Shirvan kingdoms. In the 19th century, the city passed from Persian into Russian ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sasanian Empire
The Sasanian () or Sassanid Empire, officially known as the Empire of Iranians (, ) and also referred to by historians as the Neo-Persian Empire, was the History of Iran, last Iranian empire before the early Muslim conquests of the 7th-8th centuries AD. Named after the Sasanian dynasty, House of Sasan, it endured for over four centuries, from 224 to 651 AD, making it the longest-lived List of monarchs of Persia, Persian imperial dynasty. The Sasanian Empire succeeded the Parthian Empire, and re-established the Persians as a major power in late antiquity alongside its neighbouring arch-rival, the Roman Empire (after 395 the Byzantine Empire).Norman A. Stillman ''The Jews of Arab Lands'' pp 22 Jewish Publication Society, 1979 International Congress of Byzantine Studies ''Proceedings of the 21st International Congress of Byzantine Studies, London, 21–26 August 2006, Volumes 1–3'' pp 29. Ashgate Pub Co, 2006 The empire was founded by Ardashir I, an Iranian ruler who rose to po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Derbent Summer
Derbent (russian: Дербе́нт; lez, Кьвевар, Цал; az, Дәрбәнд, italic=no, Dərbənd; av, Дербенд; fa, دربند), formerly romanized as Derbend, is a city in Dagestan, Russia, located on the Caspian Sea. It is the southernmost city in Russia, and it is the second-most important city of Dagestan. Derbent occupies the narrow gateway between the Caspian Sea and the Caucasus Mountains connecting the Eurasian Steppe to the north and the Iranian Plateau to the south; covering an area of , with a population of roughly 120,000 residents. Derbent claims to be the oldest city in Russia, with historical documentation dating to the 8th century BC, making it one of the oldest continuously inhabited cities in the world. Due to its strategic location, over the course of history, the city changed ownership many times, particularly among the Persian, Arab, Mongol, Timurid, and Shirvan kingdoms. In the 19th century, the city passed from Persian into Russian hand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Delhi
Delhi, officially the National Capital Territory (NCT) of Delhi, is a city and a union territory of India containing New Delhi, the capital of India. Straddling the Yamuna river, primarily its western or right bank, Delhi shares borders with the state of Uttar Pradesh in the east and with the state of Haryana in the remaining directions. The NCT covers an area of . According to the 2011 census, Delhi's city proper population was over 11 million, while the NCT's population was about 16.8 million. Delhi's urban agglomeration, which includes the satellite cities of Ghaziabad, Faridabad, Gurgaon and Noida in an area known as the National Capital Region (NCR), has an estimated population of over 28 million, making it the largest metropolitan area in India and the second-largest in the world (after Tokyo). The topography of the medieval fort Purana Qila on the banks of the river Yamuna matches the literary description of the citadel Indraprastha in the Sanskrit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tughlaqabad Fort
Tughluqabad Fort is a ruined fort in Delhi, built by Ghiyasuddin Tughluq, the founder of the Tughlaq dynasty, of the Delhi Sultanate of India in 1321, as he established the third historic city of Delhi, which was later abandoned in 1327. It lends its name to the nearby Tughluqabad residential-commercial area as well as the Tughluqabad Institutional Area. Ghiyasuddin Tughluq also built the Qutub- Badarpur Road, which connected the new city to the Grand Trunk Road. The road is now known as Mehrauli-Badarpur Road. The entry fee for the Fort is Rs. 20 for Indians. Also, nearby is Dr. Karni Singh Shooting Range and Okhla Industrial Area. Surroundings are an important biodiversity area within the Northern Aravalli leopard wildlife corridor stretching from Sariska Tiger Reserve to Delhi. Historical places around the sanctuary are Badkhal Lake, northeast, the tenth century ancient Surajkund reservoir and Anangpur Dam, Damdama Lake, Tughlaqabad Fort and Adilabad ruins (both in Delh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tughlaqabad Fort Wall
Tughluqabad Fort is a ruined fort in Delhi, built by Ghiyasuddin Tughluq, the founder of the Tughlaq dynasty, of the Delhi Sultanate of India in 1321, as he established the third historic city of Delhi, which was later abandoned in 1327. It lends its name to the nearby Tughluqabad residential-commercial area as well as the Tughluqabad Institutional Area. Ghiyasuddin Tughluq also built the Qutub- Badarpur Road, which connected the new city to the Grand Trunk Road. The road is now known as Mehrauli-Badarpur Road. The entry fee for the Fort is Rs. 20 for Indians. Also, nearby is Dr. Karni Singh Shooting Range and Okhla Industrial Area. Surroundings are an important biodiversity area within the Northern Aravalli leopard wildlife corridor stretching from Sariska Tiger Reserve to Delhi. Historical places around the sanctuary are Badkhal Lake, northeast, the tenth century ancient Surajkund reservoir and Anangpur Dam, Damdama Lake, Tughlaqabad Fort and Adilabad ruins (both in Delhi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corvus (weapon)
The ''corvus'' (meaning "crow" or "raven" in Latin) was a Roman naval boarding device used in sea battles against Carthage during the First Punic War. Description In Chapters 1.22-4-11 of his ''History'', Polybius describes this device as a bridge 1.2 m (4 ft) wide and 10.9 m (36 ft) long, with a small parapet on both sides. The engine was probably used in the prow of the ship, where a pole and a system of pulleys allowed the bridge to be raised and lowered. There was a heavy spike shaped like a bird's beak on the underside of the device, which was designed to pierce and anchor into an enemy ship's deck when the boarding bridge was lowered. This allowed a firm grip between the vessels and a route for the Roman legionaries (who served as specialized naval infantry called ''marinus'') to cross onto and capture the enemy ship. In the 3rd century BCE, Rome was not a naval power and had little experience in sea combat. Before the First Punic War began in 264 B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Krak Des Chevaliers
Krak des Chevaliers, ar, قلعة الحصن, Qalʿat al-Ḥiṣn also called Hisn al-Akrad ( ar, حصن الأكراد, Ḥiṣn al-Akrād, rtl=yes, ) and formerly Crac de l'Ospital; Krak des Chevaliers or Crac des Chevaliers (), is a medieval castle in Syria and one of the most important preserved medieval castles in the world. The site was first inhabited in the 11th century by Kurds, Kurdish troops garrisoned there by the Mirdasid dynasty, Mirdasids. In 1142 it was given by Raymond II of Tripoli, Raymond II, County of Tripoli, Count of Tripoli, to the order of the Knights Hospitaller. It remained in their possession until it fell in 1271. The Hospitallers began rebuilding the castle in the 1140s and were finished by 1170 when an earthquake damaged the castle. The order controlled a number of castles along the border of the County of Tripoli, a Crusader state, state founded after the First Crusade. Krak des Chevaliers was among the most important, and acted as a center ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
