When weredronesinvented

Most stun guns use a rechargeable battery and don't use projectiles. You can use them as long as the battery still has some juice.

UAVs are descended from target drones and remotely piloted vehicles (RPVs) employed by the military forces of many countries in the decades immediately after World War II. Modern UAVs debuted as an important weapons system in the early 1980s, when the Israeli Defense Forces fitted small drones resembling large model airplanes with trainable television and infrared cameras and with target designators for laser-guided munitions, all downlinked to a control station. Rendered undetectable by their small size and quiet engines, these vehicles proved effective in battlefield surveillance and target designation. Other armed forces learned from the Israeli success, notably the United States, which purchased some of the early Israeli models or produced them under license. The most important American tactical UAV—and one that is representative of trends in the development of these aircraft—is the MQ-1 Predator, which first flew in 1994 and entered service the following year. The Predator, with a length of 26 feet 8 inches (8 metres) and a wingspan of 41 feet 8 inches (12.5 metres), is powered by a piston engine driving a pusher propeller. It flies at 80 miles (130 km) per hour and has an endurance of 24 hours. In addition to visible and infrared television, it carries synthetic aperture radar and passive electronic sensors, and it can also carry antitank missiles. Control inputs and sensor outputs are transmitted via communications satellite. A larger, turboprop-powered derivative of the Predator, the MQ-9 Reaper, has improved performance and carries a larger ordnance load. Both the Predator and the Reaper have been used in the conflicts in Iraq and Afghanistan and have been purchased by allies of the United States.

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unmanned aerial vehicle (UAV), military aircraft that is guided autonomously, by remote control, or both and that carries sensors, target designators, offensive ordnance, or electronic transmitters designed to interfere with or destroy enemy targets. Unencumbered by crew, life-support systems, and the design-safety requirements of manned aircraft, UAVs can be remarkably efficient, offering substantially greater range and endurance than equivalent manned systems.

When were moderndronesinvented

Extremely small UAVs, in some cases hand-launched, are used to extend the vision of ground combat units beyond their front lines. For more information, see military aircraft: Unmanned aerial vehicles.

When was drone camera invented

It's easy to find reliable stun guns, like the Vipertek VTS-989, for less than $30, while most of TASER's consumer-grade models, like the TASER Pulse, cost $400 or more. TASERs are also more expensive to use—replacement cartridges cost about $20 to $23, depending on if you buy a 10-pack or a 2-pack. Likewise, replacement batteries cost between $10 and $25, depending on your model.

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Larger UAVs are used for strategic reconnaissance. The most important of these is the U.S. RQ-4 Global Hawk, a jet-powered craft 44 feet (13 metres) long and with a wingspan of 116 feet (35 metres). The Global Hawk has a cruise speed of 400 miles (640 km) per hour and an endurance of some 36 hours, and it carries a variety of photographic, radar, and electronic sensors.

First drone camera in the world

The projectile nature of a TASER renders its wires and propellant unusable after one or two shots, depending on the model. Swapping out the TASER cartridge is easy, but it gives you fewer options when deterring an attack, and spare cartridges are expensive.

While a TASER device is just as painful as a normal stun gun, it's more effective at incapacitating muscle functions so an attacker can't move.

Your budget is probably the biggest factor in buying a TASER or a stun gun, but both have strengths and weaknesses. Stun guns are more affordable and easier to reuse, while a TASER helps you keep your distance from violent attackers. Check out our review of the best stun guns to find the best fit for you and learn about stun gun laws.

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In contrast, a stun gun is any electroshock weapon. This means that all TASER devices are stun guns—but not all stun guns are TASERs.

TASER—in all caps—is a brand from Axon that helped popularize using electric shock weapons for self-defense. TASER's early popularity meant many people started using it as a generic term, like how dumpster became the de facto term for large trash bins.

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Stun guns are close - proximity devices that require you to be next to the person attacking you. They use a painful shock to discourage further contact.

There are four main differences between stun guns and tasers: branding, range, reusability, and price. TASERs are branded projectile weapons, while stun guns are more affordable and require close-range contact with an attacker.

The projectile prongs on TASERs make them ubiquitous among law enforcement agencies with police TASER devices offering more range than consumer models—up to 35 feet.

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On the other hand, a TASER uses projectile prongs that attach to a target further away—up to 15 feet. The two prongs spread out when a TASER gun fires, allowing them to land on different body parts. This helps the TASER send electricity across a larger area. Ironically, a TASER's shape is more like a traditional firearm than a generic stun gun is.