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A solar dial is a type of time switch used primarily for controlling lighting. [ 1 ] The benefit of a solar dial over a conventional 'on-off' time switch is the ability to 'track' the sunrise and sunset times for a particular latitude (which is specified when the unit is purchased).
Improper separation of a lanyard during booster jettison reset the Atlas programmer and caused erroneous flight path. RSO T+413 seconds. 34 1975-05-22 22:04:00 Atlas-Centaur SLV-3D AC-35 CCAFS LC-36A: Intelsat 4 F1: Comsat GTO: Success 35 1975-09-26 00:17:00 Atlas-Centaur SLV-3D AC-36 CCAFS LC-36B: Intelsat 4A F1: Comsat GTO: Success 36 1976-01 ...
Two spaceflights, with the Pioneer 10 and Pioneer 11 space probes to Jupiter, Saturn and exiting the Solar System, used a spin-stabilized "Star-37E" solid propellant final stage weighing 2,473 pounds (1,122 kg) and contributing 8,000 mph (13,000 km/h; 3.6 km/s) to the velocities of the spacecraft.
The stowage of the solar arrays is a two step process with the initial step involving the rolling up of the solar arrays and the second step involving the actual folding up of the arrays against the telescope. Each array stands on a four-foot mast that supports a retractable wing of solar panels 12 m (39 ft) long and 2.5 m (8 ft 2 in) wide. [5]
These mounting systems generally enable retrofitting of solar panels on roofs or as part of the structure of the building (called BIPV). [2] As the relative costs of solar photovoltaic (PV) modules has dropped, [3] the costs of the racks have become more important and for small PV systems can be the most expensive material cost. [4]
By the 1960s solar power was the standard for powering space-bound satellites. In the early 1970s, solar cell technology became cheaper and more available ($20/watt). Between 1970 and 1990, solar power became more commercially operated. Railroad crossings, oil rigs, space stations, microwave towers, aircraft, etc.
An alien race from the Dark Star solar system called "The Wipers," who look human, start to colonize the planet and go about destroying communication and data technology. In 2117, humans start to evacuate the planet for a place called the White Crystal solar system. In 2123, the last of the humans are getting ready to evacuate.
Solar Renewable Energy Certificates (SRECs) or Solar Renewable Energy Credits, are a form of Renewable Energy Certificate or "green tag" existing in the United States of America. SRECs exist in states that have Renewable Portfolio Standard (RPS) legislation with specific requirements for solar energy , usually referred to as a "solar carve-out ...
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