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Topic Review
Biography
Topic Review
105×617mm
The 105×617mm (4.1 inch) also known as 105 × 617 R is a common, NATO-standard, tank gun cartridge used in 105mm guns such as those derived from the Royal Ordnance L7. The 105 × 617 R cartridge was originally developed from the 84 mm (3.3 in) calibre Ordnance QF 20-pounder 84 × 618R cartridge as part of the development of the L7 105 mm rifled gun.
1.8K
03 Nov 2022
Topic Review
15 Minute City
The 15-minute city is a residential urban concept in which all city residents are able to meet most of their needs within a short walk or bicycle ride from their homes. The concept was popularized by Mayor Anne Hidalgo of Paris, who was in turn inspired by French-Colombian scientist Carlos Moreno. It has been described as a "return to a local way of life. 15-minute cities are built from a series of 15-minute neighborhoods, also known as complete communities or walkable neighborhoods.
1.2K
15 Nov 2022
Topic Review
3-Inch Gun M1903
The 3-inch gun M1903 and its predecessors the M1898 and M1902 were rapid fire breech-loading artillery guns with a 360-degree traverse. In some references they are called "15-pounders" due to their projectile weight. They were originally emplaced from 1899 to 1917 and served until shortly after World War II. These 3-inch guns were placed to provide fire to protect underwater mines and nets against minesweepers, and also to protect against motor torpedo boats. In some documentation they are called "mine defense guns". The 3-inch guns were mounted on pedestal mounts (or a retractable "masking parapet" mount for the M1898) that bolted into a concrete emplacement that provided cover and safety for the gun's crew.
814
23 Nov 2022
Topic Review
76 Mm Gun M1
The 76 mm gun M1 was an American World War II–era tank gun developed by the U.S Ordnance Department in 1942 to supplement the 75 mm gun on the basic Medium tank M4. It was also used to arm the 76 mm Gun Motor Carriage M18 tank destroyer. Although the gun was tested in early August 1942 and classified on August 17, 1942, it was not until August 1943 that the Ordnance Department developed a mounting for the M4 tank that the tank forces would accept. It was not accepted for combat until July 1944. In January 1943, the decision was made to mount the 76 mm on the vehicle that would become the M18. By May 1944, it was being combat tested as the T70.
3.7K
11 Nov 2022
Topic Review
9K111 Fagot
The 9K111 Fagot (Russian: Фагот; "bassoon") is a second-generation tube-launched SACLOS wire-guided anti-tank missile system of the Soviet Union for use from ground or vehicle mounts. The 9K111 Fagot missile system was developed by the Tula KBP Design Bureau for Instrument Building. "9M111" is the GRAU designation of the missile. Its NATO reporting name is AT-4 Spigot.
3.3K
21 Oct 2022
Topic Review
9M133 Kornet
The 9M133 Kornet (Russian: Корнет; "Cornet", NATO reporting name AT-14 Spriggan, export designation Kornet-E) is a modern Russian man-portable anti-tank guided missile (ATGM) intended for use against main battle tanks. It was first introduced into service with the Russian army in 1998. The Kornet is among the most capable Russian ATGMs. It is not intended to fully replace previous systems, due to its high cost. The Kornet comes in variants with thermobaric warheads for use against soft targets. It was further developed into the 9M133 Kornet-EM, which has increased range, fire-and-forget capability, and an improved warhead. The Kornet has been widely exported and is produced under license in several countries. It was first used in combat in 2003 and has since been used in many conflicts. The NATO reporting name AT-14 Spriggan is derived from the spriggan, a legendary creature from Cornish faery lore.
6.0K
08 Nov 2022
Topic Review
Acer Aspire Laptops
Acer Aspire (stylized as Λspire or ΛSPIRE) is a series of personal computers by Acer Inc. aimed at the casual household user or for small business use. The Aspire series covers both desktop computers and laptops. Acer developed the series in order to cover from essentials to high performances. Many of the Aspire laptops, such as model 8920G, have built in Blu-ray drives, 5.1 audio outputs and transflective displays. Acer was the first to include these drives in laptops. Most Aspire laptops have water-resistant screens, such as the 1410 and the 5741 Z. In 2007, Acer introduced the Gemstone series that marked a milestone in the Acer Aspire line. As with many Windows laptops, different models may have different specification in different parts of the world.
2.7K
20 Oct 2022
Topic Review
Acer Predator
Predator Gaming is a gamer-focused brand and line of computer hardware owned by Acer. In 2008, Acer introduced itself in the gaming computer market with a line of desktop computers: the Acer Aspire Predator series, later renamed as Acer Predator. The series is characterized by the futuristic computer chassis and high performance. In 2016, a complete range of Predator desktops, gaming laptops, tablets and accessories exists. The range competes with Lenovo's Legion, Dell's G series and Alienware subsidiary, HP's Omen and Asus ROG series.
1.5K
20 Oct 2022
Topic Review
Active Design
Active Design is a set of building and planning principles that promote physical activity. Active design in a building, landscape or city design integrates physical activity into the occupants' everyday routines, such as walking to the store or making a photocopy. Active design involves urban planners, architects, transportation engineers, public health professionals, community leaders and other professionals in building places that encourage physical activity as an integral part of life. While not an inherent part of active design, most designers employing "active design" are also concerned with the productive life of their buildings and their building's ecological footprint.
861
21 Oct 2022
Topic Review
Active Hand Exoskeletons
Hand exoskeletons are still an active research field due to challenges that engineers face and are trying to solve. Each hand exoskeleton has certain requirements to fulfil to achieve their aims.
2.2K
18 Mar 2021
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