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Rain Clox was the trade name given to a series of electromechanical irrigation controllers produced by the Rain Bird Corporation from 1962 to the late 2000s (decade), and were largely responsible for giving rise to the widespread use of automatic irrigation. The first model was the ME11AB, capable of running 11 stations on two schedules. A scaled-down residential model, the RC-8, was formally introduced in 1968 and was marketed as the "first appliance for the garden". [1] The Los Angeles Times reported in 1967 that architects incorporated the RC-8 into a suburban housing development in Glendale, California, planning on adding the cost of the system to the mortgage. [2] The controllers were used in controlled experiments of swine waste lagoon systems. [3] The product line would later range from compact 3-station mechanical units to 23-station multi-program devices.
The Rain Clox series controllers were known for their durability.[ citation needed ] In 1997, Rain Bird held a contest to find the oldest functioning controller, eventually locating an RC-8 manufactured in 1964 which was still functioning after it survived a tornado. [4] A considerable online aftermarket for the controllers has appeared following their discontinuation.
Dual-schedule controllers with individual switches for each station to run on either A or B program. Rain Bird later resurrected this design as the "Turfmaster".
These featured a single 14-day watering schedule and 23 possible on-the-hour start times. The RC-A series controllers were later replaced by the RC-B (indoor) and RC-C (outdoor) series following improvements in mechanical design.
These consisted of two RC-A series controllers in one unit which operated in sequence, with the capability of switching off the lower controller on a given day. Zones requiring less watering would thus be assigned to the lower unit. The 12th station on the upper unit was replaced with a tripper mechanism to start the lower unit.
Master control units for golf courses, consisting of a single RC-A unit which operated three separately timed sets of stations.
A teleprinter is an electromechanical device that can be used to send and receive typed messages through various communications channels, in both point-to-point and point-to-multipoint configurations.
STS-60 was the first mission of the U.S./Russian Shuttle-Mir Program, which carried Sergei K. Krikalev, the first Russian cosmonaut to fly aboard a Space Shuttle. The mission used NASA Space Shuttle Discovery, which lifted off from Launch Pad 39A on February 3, 1994, from Kennedy Space Center, Florida. The mission carried the Wake Shield Facility experiment and a SPACEHAB module, developed by SPACEHAB Inc., into orbit, and carried out a live bi-directional audio and downlink link-up with the cosmonauts aboard the Russian space station Mir.
STS-62 was a Space Shuttle program mission flown aboard Space ShuttleColumbia. The primary payloads were the USMP-02 microgravity experiments package and the OAST-2 engineering and technology payload, both in the orbiter's cargo bay. The two-week mission also featured a number of biomedical experiments focusing on the effects of long duration spaceflight. The landing was chronicled by the 1994 Discovery Channel special about the Space Shuttle program and served as the show's opening. A C.F. Martin backpacker guitar was also flown aboard Columbia during the mission.
A timer or countdown timer is a type of clock that starts from a specified time duration and stops when reaching 00:00. A simple timer is an hourglass. Commonly, a timer triggers an alarm when it ends. A timer can be implemented through hardware or software. Stopwatches operate in the opposite direction, upwards from 00:00, measuring elapsed time since a given time instant. Time switches are timers that control an electric switch.
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Irrigation scheduling is the process used by irrigation system managers to determine the correct frequency and duration of watering.
Fast chess, also known as speed chess, is a type of chess in which each player is given less time to consider their moves than classical chess time controls allow. Fast chess is subdivided, by decreasing time controls, into rapid chess, blitz chess, and bullet chess. Armageddon chess is a particular variation of fast chess in which different rules apply for each of the two players.
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A sprinkler system timer is an electrical device that is used to set an irrigation sprinkler system to come on automatically at a certain time. Irrigation timers first appeared in the early 1960s to control large-radius lawn sprinklers, which at the time usually contained their own electrically operated valve. These timers were large and cumbersome with numerous mechanical parts and were usually relegated to agricultural and commercial applications. Compact irrigation timers did not become commonplace until the 1970s when Lawn Genie introduced a mechanical timer which measured only ten by six inches and was four inches deep. This controller proved popular for many years, but was hard to reprogram and it did not operate valves in immediate succession unless each valve was set to run for an hour. Rain Bird later introduced the RC-7A to their Rain Clox line, which featured an "at a glance" electromechanical programming interface that proved very easy to operate, and offered the ability to omit stations from the program sequence without creating time gaps. This timer which became standard issue in many tract homes during the 1980s and proved to be remarkably durable in its construction, with many still operating today.
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