How a Microwave Works By Zach Betten [pic] What is a Microwave? A microwave oven or microwave is a kitchen appliance that cooks or heats food by using electromagnetic waves. This happens by using microwave radiation to heat materials such as water and other things within the food. This leads to food being more evenly heated throughout. Basic microwave ovens heat food quickly and efficiently. One setback is that they do not brown or bake food in
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and solar disturbances. At ranges shorter than a few miles however‚ S-band radar’s usefulness is hindered by its own characteristics required of it for the greater distances. A disadvantage of S-band‚ albeit a small one is the size of the slotted waveguide array antenna that is associated with that system which can measure 3.6 meters across its face. X-band is a radio frequency range designation that denotes the operational frequency of a specific radar system. X-band radar‚ itself has a variety of
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The horizons of optical networks are much more than high speed physical layer transport. An intelligent optical network design must include higher network layer considerations. This is the only book currently on the market that addresses optical networks from the physical layer to the network layer and should be valuable for those who try to understand the intricacies of what optical networks can be. —Vincent Chan‚ Professor‚ MIT Department of Electrical Engineering and Computer Science This book
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Fiber optic communication ABSTRACT FIBRE-OPTICS COMMUNICATION Most reference materials that discuss the historical perspective mention about Indian smoke signals. None of these primitive systems was secure due to the spreading of the unguided light. Ideally‚ a communication system should be secure and should not require installation of a cumbersome physical media. Fiber optics satisfied these desires‚ and as early as 1958‚ fiber-optic equipment was being focused for use in the factory. The fiber-optic
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TYPES OF MAGNETIC MATERIALS Paramagnetic materials have a small‚ positive susceptibility to magnetic fields. These materials are slightly attracted by a magnetic field and the material does not retain the magnetic properties when the external field is removed. Paramagnetic properties are due to the presence of some unpaired electrons‚ and from the realignment of the electron paths caused by the external magnetic field. Paramagnetic materials include magnesium‚ molybdenum‚ lithium‚ and tantalum
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The Living Organization™ Norman Wolfe There is a change rippling through the ranks of corporate leadership‚ a generational shift in the ranks of CEOs and other corporate executives. It is a shift from those who were raised during World War II and moved into leadership roles during the 70s and 80s‚ to those who were raised in the post-Vietnam era and assumed their leadership roles in the 90s and turn of the century. Where previous generations relied on the traditional military‚ hierarchical‚ command
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Bruce Munro’s Light Installations Bruce Munro is a British installation artist. Installation art is three-dimensional and is mostly site-specific. They are intended to change space perception. Bruce Munro has taken installation art to new heights. He does large-scale installations that usually encompass entire parks to create entire exhibitions. His primary medium is light. He uses light to completely transform an area. His exhibitions are very unique. Typically in an exhibition‚ one
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on an epitaxial GaAs/AIGaAs substrate. These integrated photonic circuits‚ which are important for optically-controlled phased-array radar‚ include asymmetric splitters with various splitting ratios‚ smoothly curved 90° bends‚ as well as linear waveguides. The delay lines were tested and found to have the desired delay and a power-output uniformity of ±2-4%. Louay Eldada (M’88) received the B.S. and M.S degrees from the Columbia University School of Engineering and Applied Science in 1989 and
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A REPORT ON LASER 1 Techno India College of Technology Megacity‚Rajarhat Kolkata 700156 A Report on LASER TECHNOLOGY By ZAKIR UDDIN AHMAD Student B.Tech 3rd year Applied Electronics and Instrumentation Engineering 2012 2 Abstract The word laser is an acronym that stands for "light amplification by stimulated emission of radiation." In a fairly unsophisticated sense‚ a laser is nothing more than a special flashlight. Energy goes in‚ usually in the form of electricity‚ and light comes out
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fiber-optic cables • Abraham Van Heel covered a bare fiber or glass or plastic with a transparent cladding of lower refractive index. • Corning Glass researchers Robert Maurer‚ Donald Keck‚ and Peter Schultz invented fiber-optic wire or "optical waveguide fibers • In April 1977‚ General Telephone and Electronics tested and deployed the world’s first live telephone traffic through a fiber-optic system running at 6 Mbps‚ in Long Beach‚ California. • Today more than 80 percent of the world’s long-distance
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