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Topic: Navigation

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In the News (Thu 25 Apr 19)

  Navigation - Wikipedia, the free encyclopedia
The Polynesian navigators routinely crossed thousands of miles of open ocean, to tiny inhabited islands, using only their own senses and knowledge, passed by oral tradition, from navigator to apprentice.
Celestial navigation systems are based on observation of the positions of the Sun, Moon and stars relative to the observer and a known location.
Navigators could determine their latitude by measuring the angular altitude of Polaris any time that it was visible (excepting, of course, in those southern latitudes from where it cannot be observed).
en.wikipedia.org /wiki/Navigation   (2553 words)

 Celestial Navigation Biography @ GuidingLight.com (Guiding Light)   (Site not responding. Last check: 2007-10-22)
Celestial navigation is the process whereby angles between objects in the sky (celestial objects) and the horizon are used to locate one’s position on the globe.
Practical celestial navigation usually requires a chronometer to measure time, a sextant to measure the angles, an almanac giving angular schedules of celestial objects, a set of sight reduction tables to help perform the math, and a chart of the region.
Modern practical navigators nearly always use celestial navigation in combination with satellite navigation to correct a dead-reckoning track, that is, a course estimated from a vessel's position, angle and speed.
www.guidinglight.com /encyclopedia/Celestial_navigation   (1663 words)

 Satellite Navigation Exercise @ EveryAvenue.com (Every Avenue)   (Site not responding. Last check: 2007-10-22)
Satellite navigation receivers reduce errors by using combinations of signals from multiple satellites and multiple correlators, and then using techniques such as Kalman filtering to combine the noisy, partial, and constantly changing data into a single estimate for position, time, and velocity.
Satellite navigation also allows forces to be directed and to locate themselves more easily, reducing the fog of war.
The same applies to the use of smart bombs: the operator of a satellite navigation system can effectively degrade the performance of smart bombs being used by other states using its satellite navigation system to that of gravity bombs, or even offset them from their targets in such a way as to render them useless.
www.everyavenue.com /encyclopedia/Satellite_navigation   (1297 words)

 Navigation Basics - How to build better web site navigation from efuse.com
I've seen some navigation elements that were so huge they virtually filled the screen and forced the visitor to scroll just to see the start of the content.
These program-based navigation features can be useful, but they also can be cumbersome—they take longer to download than text or small graphics, and they don't work on all browsers, so don't rely on them solely.
Navigation is always accurate and up-to-date, without you having to lift a finger.
www.efuse.com /Design/navigation.html   (2193 words)

 U.S. Army Corps of Engineers, Pittsburgh District - Navigation
Commercial navigation is important to the region’s economy because river transport is an extremely economical method of transporting raw materials and bulk goods.
The Corps of Engineers’ Navigation Data Center, which is responsible for establishing and maintaining a variety of water transportation information systems, provides an Index to Navigation Charts by Corps District for information on navigation charts and related navigation information throughout the United States.
Navigation Charts for the Allegheny, Cumberland, Green, Great Kanawha, Monongahela, Ohio (New Martinsville, West Virginia to Pittsburgh, Pennsylvania; Cairo, Illinois to Foster, Kentucky) and Tennessee Rivers are available to download in Portable Document Format (PDF).
www.lrp.usace.army.mil /nav/nav.htm   (1610 words)

 WDVL: Nav 101
Navigation is one of the most critical aspects of Web site design - arguably the most important.
A simple, logical, understandable navigation scheme can increase your number of page impressions, boost return visits, and improve your "conversion rate" (the number of visitors who are "converted" into customers).
Good navigation is mostly a matter of common sense (a commodity in short supply in cyberspace), and although it varies somewhat for different types of sites, there are certain basic principles that apply to almost all sites, or at least almost all business sites.
wdvl.internet.com /Location/Navigation/101   (491 words)

On a vessel, navigation lights are lights shown that are of a specific color, (white, red, green, yellow, blue), arc, range of visibility, and location, as required by law and regulations.
It is the responsibility of the owner/operator of a vessel that she show the proper navigation lights for her size and the waters in which she is operating.
On bodies of water wholly within the boundaries of a single state, and not navigable to the sea, the state is responsible for establishing and maintaining aids to navigation.
www.boatus.com /onlinecourse/documents/navigation.html   (4249 words)

 Advanced navigation courses - sailing schools Greece for RYA and ASA courses
Not only is such reliance unwanted and possibly dangerous, also the act of navigating by yourself is actually a lot of fun, especially when sailing in Greece or Turkey, which are the perfect to learn how to sail.
Indeed, the art of navigation enables you to set a course and sail to your destination by using only nautical charts, a compass and your common sense.
The aim of this course is to teach you how to navigate safely while using the minimum of resources: methods that have been in use since the Middle Ages, and are still applied by the professionals
www.sailingissues.com /navcourse0.html   (418 words)

 Environment Agency - Navigation
The Environment Agency is one of the major navigation authorities in charge of inland rivers, estuaries and harbours in England and Wales.
Navigation news and press releases, together with information on forth-coming events.
For anything you need to know about navigation on our waterways; these pages are packed with advice on things to do and places of interest to visit, as well as helpful tips on all aspects of boating, such as lock keeper hours to mooring and speed limit information.
www.environment-agency.gov.uk /subjects/navigation/?lang=_e   (285 words)

Navigation satellites were one of the earliest military applications of space technology, and among the most useful to military forces on Earth.
Warplanes now use navigation satellites to guide them to aerial tankers for in-flight refueling as they fly non-stop from their home bases to conflicts thousands of miles away.
Navigation Warfare is focused on validating the technologies and CONOPS for implementing electronic warfare (EW) countermeasures both to protect and prevent the use of satellite navigation systems.
www.globalsecurity.org /space/systems/nav-overview.htm   (4894 words)

 GUUUI - Navigation blindness
The navigation tools that have become standard on the web seem to be designed with the ambition to give users the option to go anywhere from everywhere.
There doesn't seem to be any research confirming that users systematically ignore navigation areas, but the behaviour is very similar to the phenomenon of "banner blindness." Studies by the research team Benway and Lane has shown that when users search for information on a website, they generally ignore anything that looks like a banner ad.
Since users are not willing to be seduced before they have accomplished what they came for, persuasive navigation should be placed at locations where we can expect that users have come to the end of their current mission.
www.guuui.com /issues/01_05.php   (1894 words)

 R541: Navigation   (Site not responding. Last check: 2007-10-22)
Designers need to recognize and respect the cues that users give us when they express their hypermedia experiences in the language of physical navigation -- they experience the use of these products as a kind of motion through space.
Navigation is concerned with the connections between the different displays that are available in a hypermedia system or product.
The design of your navigation structure is not just a matter of mechanics, but of emotion and interpersonal dialogue.
www.indiana.edu /~iirg/ARTICLES/NAVIGATION/navigationdoc.html   (282 words)

 InfoDesign: Understanding by Design - News | Navigation
Navigation blindness: How to deal with the fact that people tend to ignore navigation
The hypothesis that the left-hand navigation would perform significantly faster than the right-hand navigation was not supported.
Navigational Issues in the Design of On-Line Self-Administered Questionnaires: The Effect of Training and Familiarity
www.informationdesign.org /archives/cat_navigation.php   (1578 words)

 Technorati Tag: navigation   (Site not responding. Last check: 2007-10-22)
GPS and Navigation Solutions from TomTom Easily find your way with TomTom’s high quality GPS navigation solutions.
I’ve been playing around with folksonomies and social navigation as of late and I decided to give flock another try.
Navigation: Save at Become.com Become.com provides you with prices, research and information from across the Web to help you get a great deal.
technorati.com /tag/navigation   (457 words)

 Navigation (Topic at Usable Web)
Navigation is overdone on many sites; all pages do not have to link to everything.
A solid information architecture is crucial, and the navigation can convey this structure to users.
Vincent Flanders defines a term for Javascript rollovers as navigation elements and explains why this is bad.
usableweb.com /topics/000689-0-0.html   (520 words)

 Boat Navigation Videos
Covers all the basic navigation requirements required plus several vital tips that will make navigating from one point to another much simpler and safer.
Clear demonstrations are shown on the water and the simulator of a Coast Guard certified navigation school.
Our waterways are controlled by a system of markers commonly known as "Aids to Navigation." This consists of a system of buoys, daybeacons, lights, light platforms, radio beacons and foghorns.
www.marinevideos.com /boatnav.htm   (1280 words)

 NOAA Home Page - Charting & Navigation Theme Page
Hydrographic Surveys are conducted to determine the configuration of the bottoms of water bodies, especially as it pertains to navigation.
Electronic Navigational Charts are perhaps the most anticipated and most critical component of NOAA's suite of navigation tools.
NOAA National Geodetic Survey provides airport geodetic control, runway, navigational aid, obstruction and other aeronautical data that is critical to the operation of the national airspace system; plans and acquires aerial photography and compiles shoreline data, primarily for application to the nautical charts produced by the
www.noaa.gov /charts.html   (1135 words)

 WDVL: Navigation
When developing a web site, one of the most important things to consider is the navigation menu, to allow your users to find their way around it.
designing the organization and navigation systems that help users find information, this topic is a meld of concepts from traditional architecture, library science, user interface design, and usability studies.
A very popular navigation aid, these clickable graphics can be used to help create a site identity and give visual impact.
wdvl.internet.com /Location/Navigation   (485 words)

 car nav systems | gps navigation
You will know exactly where you are and where you are heading, because the Car Navigation System operates by GPS (Global Positioning System), and a CD-ROM with a digital road map holds all the information the system needs to show you the way.
The Car Navigation System always knows which route is best for you.
The Car Navigation System promises to be a valuable aid for travelers, sales people, delivery personnel, real estate agents, drivers of emergency vehicles....anyone and everyone who needs to reach a variety of destinations as quickly and efficiently as possible.
www.carnav.com   (272 words)

 Flight Simulator Navigation
Navigation is quite easy to learn and understand.
Understanding and using basic navigation concepts is important to fully enjoy flight simulators, too.
But, darn, I found no single site on the web for flight-sim enthusiasts that addresses everything from basic navigation, to low frequency navigation using the NDB (Non Directional Beacon), to VOR navigation, and the full range of instrument approaches.
www.navfltsm.addr.com   (461 words)

 Navigation Inn, Peak District Pub   (Site not responding. Last check: 2007-10-22)
The Navigation inn is situated at the historic Bugsworth Basin in the village of Buxworth
Tanner, The Navigation became an Inn over two hundred years ago, and still retains its original character and atmosphere.
The Navigation in the perfect place for touring the many attractions of the Peak District and is also handy for both Manchester and Sheffield by rail or car Click here to find out more.
www.navigationinn.co.uk   (228 words)

 Navigate!   (Site not responding. Last check: 2007-10-22)
While originally intended for police boat operators, this mini-course is designed to provide all Small Boat Professionals with the basics of navigation.
Remember that the prudent mariner never depends on any single method of navigating and instead uses multiple solutions as a cross check for errors.
It is up to you to decide on the accuracy and relevance of any method used in this tutorial and any use of this material is at your own risk.
home.att.net /~agligani/navigation/navigate.html   (205 words)

 Dan Rubin’s SuperfluousBanter (Orangina Edition) » Blog Archive » Navigation Matrix Reloaded
My navigation pales in comparison to yours as far as style is concerned, so again; nice work.
It allows for the opportunity to create a similar flash navigation where you don’t have to worry about preloading the image rollovers.
Sometimes three states (normal, active and hover) could be overkill, so I adapted Didier’s Code and created the same navigation, but with only two states (normal and hover).
superfluousbanter.org /archives/2004/05/navigation-matrix-reloaded   (1756 words)

 Designing Site Navigation. Introduction - webreference.com
You shouldn't be surprised to learn that the home page of a site is primarily responsible for the impression your visitors get about the entire design---its importance far exceeds that of any of the subpages.
The same applies to the navigation system of a site: If you manage to persuade your first-time visitors to make one step down from the home page, the chances of them getting involved with the content and wishing to explore your site thoroughly become much higher.
That's why we'll start by examining in depth the main navigation panels on the home pages of two hardware companies, Sun and Digital, which present a very instructive contrast in their approaches.
www.webreference.com /dlab/9705   (436 words)

 [No title]
Since the overlap of usability and navigation has been broached, I would be remiss if I did not point out that the more dour and orthodox of usabilitistas have tended to frown on internal navigation, using noble but passé reasoning.
Well-intentioned developers who already use page anchors to skip navigation will go to the trouble to set the anchor text in the tiniest possible font in the same colour as the background, rendering it invisible to graphical browsers (unless you happen to pass the mouse over it and notice the cursor shape change).
Maybe bottom-of-page navigation, if you use it, but even then that may be a redundant destination if left-hand or top navigation is the same as bottom navigation.
joeclark.org /book/sashay/serialization/Chapter08.html   (13060 words)

 Skip Navigation
I advocated skip navigation links early on (around 1998) and urged adopting a provision for the Section 508 Web Accessibility Standards when I served as vice chair of the Electronic and Information Technology Access Advisory Committee (EITAAC) that was empanelled by the US Access Board to propose standards to implement Section 508.
If there are five or more navigation links and/or other content that comes before the main content of the page then the skip navigation technique should probably be used.
With headings navigation in a screen reader (usually the "H" key) you hear the section title and that is where you are; there is no need to press enter to get to the section.
www.jimthatcher.com /skipnav.htm   (2408 words)

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