Internet Generally, optics is a branch of physics (science) that deals with the nature, behavior and properties of light. Optics is also the study of interaction of light with other matter. It is also regarded as the sub-field of electromagnetism because scientifically, light is an electromagnetic wave. Applied optical sciences are often called optical engineering. Classical optics and modern optics are the two major categories of optics. Fiber optics is one of the main branches of optics that is very popular these days. The transmittance of data through fiber optics is based on the principle of total internal refraction. The data is transmitted through the medium of light. This may sound weird but you will be surprised to know that more than half of the contemporary technology is based on the concept and functions of fiber optics. Telephone, radio and television are the most common gadgets that excessively employ this technology. Business - Directory of business/finance/loan/mortgage related partner sites more 1 2 3 4 5 Computers - Directory of computer hardware/software/peripheral related partner sites more 1 2 3 4 5 Internet - Directory of webhosting/webdesign/internet marketing related partner sites more 1 2 3 4 5 Software - Directory of software related partner sites more 1 2 3 4 5 Web Design - Directory of web design/development related partner sites more 1 2 3 4 5 Web Hosting - Directory of web hosting related partner sites more 1 2 3 4 5 Web Promotion - Directory of search engine optimization/internet marketing related partner sites more 1 2 3 4 5 Web Resources - Directory of other web related partner sites more 1 2 3 4 5 Recreation - Directory of travel/hotel/cruise related partner sites more 1 2 3 4 5 Casino - Directory of online gambling/poker/blackjack/roulette related partner sites more 1 2 3 4 5 Health - Directory of online pharmacy/hospital/health related partner sites more 1 2 3 4 5 Shopping - Directory of online shopping/gift related partner sites more 1 2 3 4 5 Miscellaneous - Directory of all other partner sites more 1 2 3 4 5   Unlike the copper cables, there are no chances of getting electrical shocks in case of optical fibers. Glass has replaced copper through the course of time. Instead of copper wire, a bundle of glass threads (in a cable form) is used to transmit signals and data in modulated form. It is true that fiber optics has not replaced the traditional copper wires completely because glass threads are very expensive. They cannot be used as domestic cables used to transfer electricity and other signals. Optical fibers are more resistant towards the external interference. They are lighter and thinner. Therefore, they transmit data in digital form instead of analogue form. Fiber optics has thus resulted in conversion of every electronic medium signal transmittance in digital form. Basic Recognition of a JavaScript To get started with JavaScript, you will want to be able to see the tag that will set a script apart from the HTML. The tags used to begin and... onMouseover: Your first Script Well, its time to try out your first javascript. This one is nice because we don't have to deal with adding the script tag. Using Buttons for JavaScripts To write scripts using buttons, we will first need to know how to place a button on the page. To do this, you will need to use the.Windows Vista.