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Funk And Wagnalls Carbon Dioxide
941 wordsCarbon dioxide lasers are one of the most powerful lasers ever constructed. The word LASER stands for Light Amplification by Stimulated Emission of Radiation. Lasers are devices that amplify light and produce light beams, ranging from infrared to ultraviolet. A light beam is consistent when its waves or photons, increase while mixing together. Laser light can be extremely intense, highly directional and very pure in color. Gas lasers such as the carbon dioxide laser is made active by ultraviolet...
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Solid State Lasers Back And Forth
2,014 wordsLaser is an acronym for light amplification by stimulated emission of radiation. In the last century many types of lasers have been used for many different applications from welding to surgery to military and even many uses in every day life by harnessing the principles of light and stimulated emission. To understand how lasers work we must first understand the physics behind light waves. Light is emitted from a source and travels in straight lines and when it strikes an object is either absorbe...
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Solid State Lasers Beam Of Light
1,749 wordsL A S E R S Did you know that some laser beams are small enough and powerful enough to drill two hundred holes on a spot as tiny as the head of a pin? The first major advancement in laser development came in 1954. This was the year that Charles H. Townes, an American physicist, created a device that amplified microwaves. This device was actually called a maser at first, which was short for Microwave Amplification by Stimulated Emission of Radiation Masers. It produced microwaves of just one freq...
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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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Intellectual Property Rights X Rays
839 wordsPhysics Current Event Article Traditionally, for about 40 years now, cancer therapy has been using protons to treat tumors. This treatment has been in use since 1946, after Robert Wilson, a Berkeley physicist offered it as an option to less effective X-rays method. However, protons, as well as X-rays cause damage to DNA because they use radiation. According to Michael Holzscheiter, a spokesman for Geneva Cern's particle accelerator laboratory, there a new, revolutionary safer method for treating...
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Control Panel Break Ins
6,908 wordsIntroduction There have been a number of burglaries in the area in which the Peterson family are living; thus they have become increasingly interested in Control Technology in their home. ? They have contacted me, and my task is to prepare a report, which advises them upon various alarm systems, also considering fire detection systems. I am going to provide the Peterson? s with two reports, one outlining a basic security system for the family, and the other a more advanced top of the range syste...
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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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Solid State Lasers Beam Of Light
1,373 wordsA laser (LAY zum) is a device that produces a very narrow beam of light. This is called coherent light. It is formed from producing light at equal wavelengths in phase. The result is a beam of light that does not stray from it? s path. Conventional light bulbs produce incoherent light. This form of light diffuses immediately upon radiation from its source. The size of a laser beam varies greatly. Some lasers produce beams that are small enough to fit 200 beams in an area the size of a pinhead. T...
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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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