|
Model Gun
Modelguns are Japanese replica or toy guns, which are usually made of zinc alloys or plastic materials. Most modelguns commonly available today are designed to highly replicate the physical appearance (some bear the authentic trademarks and markings too) and in full scale of the real gun counterpart. Many are even made to highly replicate the internal mechanisms so that they are able to strip-down exactly and imitate closely the functionalities of the real counterparts. They operate exactly like a cap gun, using a small plastic percussion cap to produce gunfire sound, spark and blowback operation (for automatic models), but strictly not able to shoot any projectiles. There are very strict gun control laws in Japan to restrict the mechanisms and material of modelguns so that modelguns appeared in the Japanese market are safe and cannot be converted into anything that can shoot live cartridges or projectiles. Their high resemblance to the real guns and complete safeness make t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japan
Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north toward the East China Sea, Philippine Sea, and Taiwan in the south. Japan is a part of the Ring of Fire, and spans Japanese archipelago, an archipelago of List of islands of Japan, 6852 islands covering ; the five main islands are Hokkaido, Honshu (the "mainland"), Shikoku, Kyushu, and Okinawa Island, Okinawa. Tokyo is the Capital of Japan, nation's capital and largest city, followed by Yokohama, Osaka, Nagoya, Sapporo, Fukuoka, Kobe, and Kyoto. Japan is the List of countries and dependencies by population, eleventh most populous country in the world, as well as one of the List of countries and dependencies by population density, most densely populated and Urbanization by country, urbanized. About three-fourths of Geography of Japan, the c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mattel
Mattel, Inc. ( ) is an American multinational toy manufacturing and entertainment company founded in January 1945 and headquartered in El Segundo, California. The company has presence in 35 countries and territories and sells products in more than 150 countries. The company operates through three business segments: North America, International, and American Girl. It is the world's second largest toy maker in terms of revenue, after The Lego Group. Two of its historic and most valuable brands, Barbie and Hot Wheels, were respectively named the top global toy property and the top-selling global toy of the year for 2020 and 2021 by The NPD Group, a global information research company. The name of the company is a portmanteau of the names of two of the company's founders; the surname of Harold Matson and the first name of Elliot Handler. History Origins and early years Harold "Matt" Matson, Ruth Handler, and Elliot Handler founded Mattel as Mattel Creations in January 1945 in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brinell Scale
The Brinell scale characterizes the indentation hardness of materials through the scale of penetration of an indenter, loaded on a material test-piece. It is one of several definitions of hardness in materials science. History Proposed by Swedish engineer Johan August Brinell in 1900, it was the first widely used and standardised hardness test in engineering and metallurgy. The large size of indentation and possible damage to test-piece limits its usefulness. However, it also had the useful feature that the hardness value divided by two gave the approximate UTS in ksi for steels. This feature contributed to its early adoption over competing hardness tests. Test details The typical test uses a diameter steel ball as an indenter with a force. For softer materials, a smaller force is used; for harder materials, a tungsten carbide ball is substituted for the steel ball. The indentation is measured and hardness calculated as: :\operatorname=\frac where: :BHN = Brinell Hardn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Projectiles
A projectile is an object that is propelled by the application of an external force and then moves freely under the influence of gravity and air resistance. Although any objects in motion through space are projectiles, they are commonly found in warfare and sports (for example, a thrown baseball, kicked football, fired bullet, shot arrow, stone released from catapult). In ballistics mathematical equations of motion are used to analyze projectile trajectories through launch, flight, and impact. Motive force Blowguns and pneumatic rifles use compressed gases, while most other guns and cannons utilize expanding gases liberated by sudden chemical reactions by propellants like smokeless powder. Light-gas guns use a combination of these mechanisms. Railguns utilize electromagnetic fields to provide a constant acceleration along the entire length of the device, greatly increasing the muzzle velocity. Some projectiles provide propulsion during flight by means of a rocket engin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Walther GmbH
Carl Walther GmbH Sportwaffen (), or simply known as Walther, is a German firearm manufacturer, and a subsidiary of the PW Group. Founded by Carl Walther in 1886, the company has manufactured firearms and air guns at its facility in Germany for more than 100 years. Walther Arms, Inc. is the United States Walther business unit and is based in Fort Smith, Arkansas. History The history of Walther started with the factory created by Matthias Conrad Pistor, the chief armorer of the Kassel Armory. Pistor is the ancestor of the Walther family. This plant was operating in 1780 and made pistols and other weapons. The granddaughter of Gustave Wilhelm Pistor married August Theodore Walther, whose son Carl Wilhelm Freund established the factory that employed apprentice Carl Walther. This small shop was established in 1886 in Zella-Mehlis, in what is today Thuringia. The company originally manufactured hunting and target rifles. Then in 1888, he married Minna Georgine Pickert, daught ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mauser
Mauser, originally Königlich Württembergische Gewehrfabrik ("Royal Württemberg Rifle Factory"), was a German arms manufacturer. Their line of bolt-action rifles and semi-automatic pistols has been produced since the 1870s for the German armed forces. In the late 19th and early 20th centuries, Mauser designs were also exported and licensed to many countries which adopted them as military and civilian sporting firearms. The Gewehr 98 in particular was widely adopted and copied, and is the foundation of many of today's sporting bolt-action rifles. History King Frederick I founded the enterprise as Königliche Waffen Schmieden (literally: Royal Weapons Forges) on 31 July 1811. Originally located partly at Ludwigsburg and partly in Christophsthal, the factory transferred to the former Augustine Cloister in Oberndorf am Neckar, where Andreas Mauser worked as the master gunsmith. Of his seven sons who worked with him there, Peter Paul Mauser showed an outstanding ability to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
