mercredi 21 mai 2014

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The Modernization Of Maritime Navigation By Marine Electronics Juneau

  • mercredi 21 mai 2014
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  • By Minnie Whitley


    The maritime environment, where salt water is in abundant quantity, is not intuitively the ideal place for sensitive electrical equipment that can be zapped into oblivion for the sake of a single drop. It is paradoxical that vessels from cruise ships to navy destroyers are being fitted with more and more marine electronics Juneau as fast as new gear can be invented. Seafarers who once navigated by the position of the stars are now finding their way using man-made satellites in space.

    The change from old-fashioned paper charts to navigating by celestial satellite has been proceeding gradually. The term navigation relates to any task involving the discernment of the current position of a body and the direction in which it is travelling. This applies to a hiker in the mountains with armed with nothing but a compass. To date, cell phone signals are still a bit dodgy in the mountains.

    A clever gadget has just been introduced that allows seafarers to turn their own cell phones into satellite navigation systems. The SatSleeve enables seamless communication from terrestrial services to the open sea. It allows voice communication, messaging and even Internet access.

    Another new technological development that is sure to capture the hearts of all types of mariners, from sailors to crews on cruise ships. This is the bendable television set. It is extremely flexible, so can be molded into close quarters and rolled up and stowed when the soaps have finished.

    Modern technology is also being harnessed to keep the hulls of boats squeaky clean from foul bacteria who make the surfaces slimy and disgusting. Ultrasonic waves create vibrations that the bacteria find inhospitable. Several devices placed inside a hull can be connected to a control panel and power supply. That's one less chore for the dry dock team.

    Situated in the Alaskan panhandle on the Gastineau Channel, Juneau has been the capital of the State of Alaska since 1906, when the local government of what was then the District of Alaska voted to move it from Sitka, under the orders of the United States Congress. Juneau is named after Joe Juneau, a gold prospector, although it had also been known as Harrisburg (after Joe's business partner) and Rockwell.

    The climate in Juneau is surprisingly mild, considering its location in frigid Alaska. Because of its proximity to the Pacific Ocean, which has a high heat capacity, the lowest average temperature in the dead of winter, January, is around -5 degrees Centigrade. In the summer time, the blazing heat remains a comfortable 18.5 degrees Centigrade, even in the torrid month of July.

    In terms of acreage, Juneau is the second-largest city in the United States. In terms of population, it is the largest city and borough, with a population of more than 32,000 at the last census. There are 13 public schools in the area, serving elementary, middle and high school students. The local college is the University of Alaska Southeast.




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