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The company was founded in 1981 by Edwin J. Hunter and Paul M. Hunter, to produce a compact landscape sprinkler called the "PGP" (an acronym meaning "professional gear-driven pop-up"), the first sprinkler to utilize "matched-precipitation" regardless of the radii or arc. [7]
Pop-up satellite archival tags (PSATs) are used to track movements of (usually large, migratory) marine animals. A PSAT (also commonly referred to as a PAT tag) is an archival tag (or data logger ) that is equipped with a means to transmit the collected data via the Argos satellite system .
The rotary machine switching system, or most commonly known as the rotary system, was a type of automatic telephone exchange manufactured and used primarily in Europe from the 1910s. The system was developed and tested by AT&T's American engineering division, Western Electric , in the United States, at the same time when Western Electric was ...
The AFV mounts an all-round surveillance system with a 360-degree field of vision, enabling closed-hatch operations, as well as a laser warning system. [14] The Hunter AFV is equipped with the Army Tactical Engagement and Information System (ARTEMIS), a command and control system that allows the crew to operate the vehicle in a fully digitised ...
Note the driven bevel gear on the right-hand side; this type has a steady rotary motion and does not employ an electromagnet for stepping. Bank of two-motion switches. The Strowger switch is the first commercially successful electromechanical stepping switch telephone exchange system.
It uses a cylinder with multiple chambers, similar to those of a revolver handgun, to speed up the loading-firing-ejection cycle. Some examples are also power-driven, to further speed the loading process. Unlike a rotary cannon, a revolver cannon only has a single barrel, so its spun weight is lower. Automatic revolver cannons have been ...
SSL (Secure Sockets Layer) is an industry standard for encrypting private data sent over the Internet to help protect your account and information. Learn what SSL is and how we use it to protect your account.
The M61 is a six-barreled 20mm rotary cannon that fires at up to 6,600 rounds per minute. [5] Similar systems are available in calibers ranging from 5.56 mm to 30 mm (the prototype T249 Vigilante AA platform featured a 37 mm chambering).