** M1918 Browning Automatic Rifle, an American family of automatic rifles and light machine guns

A machine gun is a fully automatic emplaceable weapon, most often separated from other classes of automatic weapon by the use of belt-fed ammunition ( though some designs employ drum, pan or hopper magazines ), generally in a rifle-inspired caliber ranging between 5. 56 × 45mm NATO (. 223 Remington ) for a light machine gun to as large as. 50 BMG or even more larger for crewed or aircraft weapons.

Later, the German forces fielded the Sturmgewehr 44 during World War II, a light automatic rifle firing a reduced power " intermediate cartridge ".

* 1949 – The first automatic street light is installed in New Milford, Connecticut.

From the AKM he developed a squad automatic weapon variant, known as the RPK (-Kalashnikov light machine gun ), and also the PK (-Kalashnikov machine gun ), which used the more powerful 7. 62 × 54R of the Mosin-Nagant rifle.

Although subdivided into " light ", " medium ", " heavy " or " general-purpose ", even the lightest machine guns tend to be substantially larger and heavier than other automatic weapons.

Squad automatic weapons ( SAW ) are a variation of light machine gun and require only one operator ( sometimes with an assistant to carry ammunition ).

The trend toward automatic rifles, light machine guns, and more powerful sub-machine guns resulted in a wide variety of firearms that combined characteristics of ordinary rifles and machine guns.

The German Army recognized that to break the stalemate of trench warfare, a light, hand-held automatic weapon was needed that would enable individual soldiers to move with the gun to new firing positions.

Due to the weapon's light barrel, the fully automatic rate of fire could only be used for short bursts.

In light of his overt involvement in Italian politics – anyone who voted for a Communist candidate in the 1948 elections was threatened with automatic excommunication – Pius XII became known as a staunch opponent of the Italian Communist Party.

In fact, many light machine guns ( such as the Russian RPK ) are adaptations of existing automatic rifle designs.

Generally, the difference between an automatic rifle and a machine gun comes down to weight and feed system ; rifles, with their relatively light components ( which overheat quickly ) and small magazines, are incapable of sustained automatic fire in the way that machine guns are.

The description is usually limited to revolvers, pistols, submachine guns, carbines, assault rifles, battle rifles, multiple barrel firearms, sniper rifles, squad automatic weapons, light machine guns ( e. g. M60 ), and sometimes hand grenades.

Submachine guns are highly effective in close quarters ; their lower-powered pistol cartridges make them generally more controllable in fully automatic fire compared to assault rifles, while their small size and light weight grant maneuverability.

A squad automatic weapon ( SAW, also known as section automatic weapon or light support weapon ) is a weapon used to give infantry squads or sections a portable source of automatic firepower.

The Island has also been home to lighthouses warning ships in the Grafton Passage of the reefs around the island, and a small automatic light on Little Fitzroy Island, just off the north-east point, still serves this purpose.

In particular, a hidden indicator light led to an operator manually overriding the automatic emergency cooling system of the reactor because the operator mistakenly believed that there was too much coolant water present in the reactor and causing the steam pressure release.

) The new Woburn Memorial High School building now has automated teller machines, automatic light switches, and classrooms with projectors.

In 1933, an automatic revolving light was installed.

Anti-aircraft defences consisted of one light anti-aircraft battery equipped with 20 mm automatic cannon, split between the two airfields.

Major applications include AMR ( automatic meter reading ), groundwater monitoring, leak detection in distribution pipelines and equipment surveillance.

For electromagnetic shutter cameras, the shutter dial starts with 1 / 15 sec end with 1 / 1000 ( Minox C ), or starts with 1 / 30 and ends with 1 / 2000 ( Minox LX / TLX / CLX ); the electromagnetic Minox camera also has an ' A ' setting for automatic exposure, controlled by the built in exposure meter.

The lineup was soon expanded to include a variety of models from the basic but popular 100 / 104 to the automatic exposure 800 / 804, which featured an aluminum chassis, rangefinder, selenium light meter, and clockwork spring wind.

For example, a communication system bought initially for automatic meter reading can sometimes also be used for load control or for demand response applications.

PLC is one of the technologies used for automatic meter reading.

Possible utility-side applications include automatic meter reading ( AMR ), dynamic tariff control, load management, load profile recording, credit control, pre-payment, remote connection, fraud detection and network management, and could be extended to include gas and water.

The Zorki 10 was a modern-style 35mm rangefinder camera with a selenium light meter and shutter priority automatic exposure introduced in 1964.

Smart meters go a step further than simple AMR ( automatic meter reading ).

The most common are indicators that use multiple clock hands ( pointer style ) or digital readouts similar to an odometer, but remote readouts of various types are also becoming popular — see automatic meter reading and smart meter.

The major improvements in the FM2 compared to the FM were silicon photodiode light meter sensors, limited automatic dedicated electronic flash control and, most famously, a mechanically-timed vertical metal shutter ( bearing mounted for reduced friction and extended life ) reaching a top speed of an unprecedented 1 / 4000th second, with an X-sync of 1 / 200.

In automatic mode, the FE's black needle indicates the shutter speed automatically set by the electronic circuitry in response to the light reaching the meter.

the plot takes place only in a gigantic megastructure / arcology simply called the City, which is still being expanded by its automatic systems.

Use of an automatic target recognition ( ATR ) algorithm / device in the guidance system increases accuracy of the missile.

With FEM / BEM increasing popularity comes the incentive to improve automatic meshing algorithms.

When fired, an automatic pistol uses recoil and / or propellant gases to automatically extract the spent cartridge and insert a fresh one from a magazine.

Carbines, like rifles, can be single-shot, repeating-action, semi-automatic or select-fire / fully automatic, generally depending on the time period and intended market.

However, courts and various levels of government have indicated that the right is not without limit, and restrictions such as a prohibition of certain persons from owning or handling a gun ( convicted felons, mentally ill persons, persons under a restraining order ), a ban on certain types of ammunition ( armor-piercing, incendiary / tracer, explosive ), registration and restriction of certain types of firearms ( automatic weapons, short-barrelled shotguns, certain types of modifications ), and licensing requirements for possession or for public carry, have often passed judicial scrutiny ( although some of these points remain untested and others are currently under challenge ).

Possession of a fully automatic firearm is prohibited in virtually all European countries except for members of the military / militia and collectors.

* Category B-Weapons requiring permission: Semi automatic long weapons for sporting and hunting, repeating ( non-pump action ) and semi automatic shotguns and weapons shorter than 60 cm in overall length ( for example pistols and revolvers, but also bolt / lever / pump action rifles under 60 cm overall length ).

HMMWVs serve as cargo / troop carriers, automatic weapons platforms, ambulances ( four litter patients or eight ambulatory patients ), M220 TOW missile carriers, M119 howitzer prime movers, M1097 Avenger Pedestal Mounted Stinger platforms, MRQ-12 direct air support vehicles, S250 shelter carriers, and other roles.

* MARS ( software ), Data analysis software for automatic DNA / RNA concentration determination

All of the early versions were chambered to fire the M193 / M196 cartridge in the semi-automatic and the automatic firing modes.

First produced in 1896 as one of the first commercially successful and practical semi-automatic pistols, Spanish gunmakers in the late 1920s introduced " select fire " copies of the C96 with detachable magazines, and in the early 1930s Mauser engineers introduced the model 711 and 712 Schnellfeuer variants, which included a fire selector mechanism allowing fully automatic fire at a rate of 1000 rounds / minute.

A 1970 HK VP70M 18-round Semi-automatic firearm | semi-automatic / three-round automatic burst-capable pistol manufactured by German arms firm Heckler & Koch

The pistol's rate of fire in fully automatic mode is approximately 1100 – 1200 rounds / min.

By this time home phonographs had become much more common, though it wasn't until the 1940s that console radio / phono set-ups with automatic record changers became more common.

As of OS X 10. 8, garbage collection has been deprecated in favour of automatic / manual reference counting.

: domestic: islandwide, fully automatic telephone system ; VHF / UHF radiotelephone from Saint Vincent to the other islands of the Grenadines

The most common fully automatic sub-machine gun in civilian hands in Sweden is the Carl Gustaf M / 45.

* Rain sensors to control automatic windscreen / windshield wipers.

The automated orientation system consisted of two redundant systems: an automatic / solar orientation system and a manual / visual orientation system.

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