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Electromagnetic Radiation Infrared Radiation
1,377 wordsYou might remember the heroic role that newly-invented radar played in the Second World War. People hailed it then as "Our Miracle Ally." But even in its earliest years, as it was helping win the war, radar proved to be more than an expert enemy locator. Radar technicians, doodling away in their idle moments, found that they could focus a radar beam on a marshmallow and toast it. They also popped popcorn with it. Such was the beginning of microwave cooking. The very same energy that warned the B...
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Using Irradiation To Make Food Safer For Consumers
1,171 wordsUsing Irradiation to Make Food Safer for Consumers In the world today, there is a limited access to fresh and uncontaminated food. Gunjan Sign, of Popular Science, reports that "The U. S. Centers of Disease Control estimates 6. 5 million confirmed cases and more than 25 million additional unreported incidents of food poisoning each year" (65). For example, with seventy-five percent of the chicken in Europe and sixty percent of the chicken in the United States infected, salmonella is a serious pr...
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Using Irradiation To Make Food Safer For Consumers
1,173 words... the product and not in all directions, the electron beam is more efficient. A ten kilowatt beam generator is as powerful as about one-million curies from a cobalt- 60 source (Murano 14 - 15). The electron accelerators produce from five to ten million electron volts and ten to fifty kilowatts (Murano 15 - 16). The electron beam efficiency can be increased by aiming the beam at a metal target, usually tungsten or tantalum. This produces Bremsstrahlung x-rays. This type of x-ray can penetrate a...
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Constructed Wooden Molds Fines Mixture Pour Mixtures Concrete
2,443 words... ysi cal, thermal, and sometimes the chemical properties influence the performance of concrete. Aggregate is cheaper than cement and it is, therefore economical to put into the mix as much of the former and as little of the latter as possible. But economy is not the only reason for using aggregate: it confers considerable technical advantages on concrete, which has a higher volume stability and better durability than hydrated cement paste alone. General classification of aggregates: The size ...
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Electron Beam Display Screen
1,097 wordsComputer graphics is the use of computers to produce pictorial images. The images produced can be printed documents or animated motion pictures, but the term computer graphics refers particularly to images displayed on a video display screen, or display monitor. These screens can display graphic as well as alphanumeric data. A computer-graphics system basically consists of a computer to store and manipulate images, a display screen, various input and output devices, and a graphics software packa...
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Ball Bearings Laser Light
1,919 wordsYour universe, as we have suggested many times, as we " ve suggested already this morning, is but one universe among many. It is relatively a small universe - not to suggest that you should feel badly... {laughter}... for despite the consensus reality that bigger is better, despite the male-dominating energy and the comparative energies that say "bigger is better, " your universe, though relatively small, is not at all diminished by its size. Now we know the word universe by its definition means...
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Hundred Feet Eight Hundred
1,281 wordsThe quest for travel has always been one that man has tried to conquer. First, he traveled on foot, and then developed methods of transportation such as boats, but one of the first obstacles that he had to overcome was getting across rivers, waterways, and canals. Today, bridges have become a part of everyday life; hence without them, people would have a much more difficult time going from one place to another. In the United States alone, there are more than half a million bridges (History of Br...
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Romantic Poetry Imagination And Emotion
1,052 wordsr ticular characteristics of the literature of romanticism includes subjectivity and an emphasis on individualism; spontaneity; freedom from rules; solitary life rather than life in society; the beliefs that imagination is superior to reason and devotion to beauty; love of and worship of nature; and fascination with the past, especially the myths and mysticism of the middle ages. " web > In this essay I will be looking mainly at Tears, Idle Tears by Tennyson and discussing how...
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Beam Of Light Major Event
728 wordsThe setting in this story is out in the desert on an old missile range. This story takes place during the afternoon on a desert-hiking trip. The setting is vital to the story because this is where a major event takes place. The story could not have taken place anywhere else. Because in order for the major event to take place to set the story in motion the main character must be bitten by a snake, and there aren't snakes that bit in a lot of different locations. Here is the plot of the story. A b...
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Earthquake Loads Resistant Design Of Buildings
2,121 words... on from each mode using an appropriate modal combination technique. 11) Scale the elastic deformation obtained from the analysis to allow for post-elastic deformations and check that the overall deformation of the structure and that the inter-storey drift limits are within acceptable limits. (Note: The overall building deformation checks usually control boundary edge clearance requirements to avert blocks pounding each other. The inter-storey drift limits control the onset of non-structural ...
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University Of Illinois Power Supply
2,357 wordsAfter several months of planning and design, excavation for the new ACES library on the University of Illinois campus began in May 1999. The project is sponsored and will be owned by the Board of Trustees for the University of Illinois. Six separate contractors are working together under one general contractor. The project, which began in May of 1999, is scheduled to be completed by February 2001. Through informal interviews with Charles O. Pickar we learned that the project is 4 - 5 weeks behin...
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Endoplasmic Reticulum Electron Microscope
1,979 wordsExplain With Aid Of A Diagram The Explain With Aid Of A Diagram The Working Of The Electron Microscope The diagram below shows a picture of an electron microscope. This is a type of microscope that makes use of a beam of electrons rather than visible light. Because the wavelength of electrons is much smaller than the wavelength of visible light, an electron microscope not only gives a high magnification but it also has high resolution. This means that details can be seen clearly. An electron mic...
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Level Of Reality Subatomic Particles
2,410 wordsIn autumn of 1992, one of the worlds greatest contemporary physicists passed away. David Bohm, whose work inspired many people all over the world, died in London. David Bohm's contributions to science and philosophy are profound, and they have yet to be fully recognized and integrated on the grand scale. David Bohm was born on December 20, 1917, in Wilkes-Barre, Pennsylvania. Bohm was fascinated by the dazzling concepts of cosmic forces and vast expanses of space that lie beyond our understandin...
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Scarlet Letter Energy Source
1,097 wordsHololiterature- A Holographic Interpretation Of The Scarlet Hololiterature- A Holographic Interpretation Of The Scarlet L Hololiterature: a Holographic Interpretation of the Scarlet Letter Comprehension of anything requires a framework already in place in order to place it in out sphere of reference. Especially those that are fuzzy or difficult to nail down. The brain and the atom are not fully understood, but by comparing functions, structures, and similar operations to known items or concepts ...
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Electron Beam Television Programming
1,822 wordsDid you know there are more television sets in the world than there are telephones? Even the television professionals find it hard to believe. However the statistics prove it. According to official figures from the International Telecommunication Union there were 565 million telephones in 1983, and 600 million television sets. Other statistics are just as impressive. In Belgium, from 1967 to 1982, the average time spent watching television by children from 10 to 13 years, increased from 82 to 14...
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Back And Forth Stimulated Emission
1,080 wordsThe light from lasers differs from ordinary light in several important aspects. Ordinary light from a light bulb travels randomly in all directions (unless the bulb is equipped with an integral reflector that directs the light). The light is thus incoherent. Even when incoherent light is directed with a reflector, it still spreads rapidly. The light from a laser is temporary and spatially coherent. This means that all of the wave-fronts of light are lined up in time and space (see Diagrams). The...
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Bits Per Second Speed Of Light
1,533 wordsMr. Cruz Physics honors Lasers Raphael Radon Mr. Cruz Physics honors Through out the past few years lasers have been going through many innovations thus having a tremendous impact on technology. What is a laser? A laser is a special kind of light. The initials stand for (L-A-S-E-R light amplification by stimulated emission of radiation) Only the light that is commonly know to us is the type that spreads out. Laser light is in a straight beam. There are many types of lasers, some make holograms, ...
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Stimulated Emission Nobel Prize
1,216 wordsThe Wonderful World of Lasers Laser stands for Light Amplification by the Stimulated Emission of Radiation. Lasers work by producing an intense beam of bright light that travels in one direction. The laser has the unique ability to produce one specific color or wavelength of light, which can be varied in its intensity and pulse duration. The newest laser systems have become remarkably precise and selective, allowing treatment results and safety levels not previously available. All lasers contain...
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Quantum Mechanics Technological Progress
4,210 wordsWhat is quantum computing? Quantum Computing is something that could have been thought up a long time ago an idea whose time has come. For any physical theory one can ask: what sort of machines will do useful computation? or, what sort of processes will count as useful computational acts? Alan Turing thought about this in 1936 with regard (implicitly) to classical mechanics, and gave the world the paradigm classical computer: the Turing machine. But even in 1936 classical mechanics was known to ...
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Telling The Truth Time Machine
1,257 wordsSCENE I: Setting: On the set of Time Voyager, a new television series. Characters: ANN Announcer ROMEO Romeo ANN: Ladies and Gentlemen, welcome again to this weeks edition of Time Voyager. In case this is the first time you have tuned in and are unfamiliar with the concept, let me explain it to you. Modern technology today allows us to go back in time, as you probably know already. We do just that go back and visit those times and places that had so much mystery, so much darkness, and so little ...
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