TAILIEUCHUNG - Fiber Optics Illustrated Dictionary - Part 85

The Fiber Optics Illustrated Dictionary - Part 85 fills a gap in the literature by providing instructors, hobbyists, and top-level engineers with an accessible, current reference. From the author of the best-selling Telecommunications Illustrated Dictionary, this comprehensive reference includes fundamental physics, basic technical information for fiber splicing, installation, maintenance, and repair, and follow-up information for communications and other professionals using fiber optic components. Well-balanced, well-researched, and extensively cross-referenced, it also includes hundreds of photographs, charts, and diagrams that clarify the more complex ideas and put simpler ideas into their applications context | Fiber Optics Illustrated Dictionary example is located. However there are situations where an absolute URL is not the best solution. Imagine establishing an extensive Web site at that has many document and graphics files hierarchically contained in subdirectories below the main directory. Assume the subdirectories are called docs and pics and that you are building a page in the docs directory absolute URL - http docs that has many images linked from the pics directory. In terms of building the page in HTML it is tedious to type http pics each time a new image is added to the page with a link. Instead a relative URL can be used and the image referenced as Jpics . In the context of the current location of the site it means the same thing. The dot-dot-slash tells the system to go back up a directory and down into the pics subdirectory. Not only is this shorter and easier to type but it saves a huge amount of time if the entire Web site must be moved en masse to another domain name or Web host assuming you re not renaming directories or rearranging at the same time . With relative URLs which reference the current location the links will still point to the same locations in the directory structures as they did on the previous domain location. If the Webmaster didn t use relative URLs to build a site for which the domain name is likely to change rap his or her knuckles. Relative URLs were described in Standards Track RFC 1808 by Fielding in June 1995 and have since become an intrinsic part ofHTML on the World Wide Web. RUS See Rural Utilities Service. Rutherford Ernest 1871-1937 ANew Zealand-born British physicist who contributed substantially to knowledge about atomic physics. Rutherford researched at the Cavendish lab studying ionizing gases and following up much of the work of the Curies and Philipp Lenard. He collaborated with Hans Geiger developer of the Geiger counter and .

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