![]() ![]() The AK-47 was made of forged and milled steel, giving it a weight of 10.6 pounds (4.8 kg) with a loaded 30-round magazine. At the turn of a selector switch, the action could be changed from semiautomatic to fully automatic, firing at a rate of 600 rounds per minute. This drove a piston that forced the bolt back against its spring and cocked the hammer for the next round. Like the German weapon, the AK-47 (weapons in the AK family were suffixed with the year of their development) was operated by diverting some of the propellant gases into a cylinder above the barrel. In 1947 they adopted a weapon designed by Mikhail Timofeyevich Kalashnikov, naming it the Avtomat Kalashnikova (“automatic Kalashnikov”). Historical evidence suggests that they were influenced by the Sturmgewehr, but to what extent remains uncertain. Late in the war the Soviets also began a search for a rifle to shoot their 7.62-mm intermediate cartridge, which produced a muzzle velocity of 2,330 feet (710 metres) per second. SpaceNext50 Britannica presents SpaceNext50, From the race to the Moon to space stewardship, we explore a wide range of subjects that feed our curiosity about space!. ![]() Learn about the major environmental problems facing our planet and what can be done about them! Saving Earth Britannica Presents Earth’s To-Do List for the 21st Century.Britannica Beyond We’ve created a new place where questions are at the center of learning.100 Women Britannica celebrates the centennial of the Nineteenth Amendment, highlighting suffragists and history-making politicians.COVID-19 Portal While this global health crisis continues to evolve, it can be useful to look to past pandemics to better understand how to respond today.Student Portal Britannica is the ultimate student resource for key school subjects like history, government, literature, and more.Demystified Videos In Demystified, Britannica has all the answers to your burning questions.This Time in History In these videos, find out what happened this month (or any month!) in history.#WTFact Videos In #WTFact Britannica shares some of the most bizarre facts we can find.Britannica Classics Check out these retro videos from Encyclopedia Britannica’s archives.Britannica Explains In these videos, Britannica explains a variety of topics and answers frequently asked questions. ![]()
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