Optical Storage Devices • An optical disk is a high-capacity storage medium. An optical drive uses reflected light to read data. • To store data‚ the disk’s metal surface is covered with tiny dents (pits) and flat spots (lands)‚ which cause light to be reflected differently. • When an optical drive shines light into a pit‚ the light cannot be reflected back. This represents a bit value of 0 (off). A land reflects light back to its source‚ Representing a bit value of 1 (on)
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cInnovation Organisations: The 3M Way Damian Gordon Recommended Reading 3M formerly known as the Minnesota Mining and Manufacturing Company Founded on the North Shore of Lake Superior at Two Harbors‚ Minnesota in 1902 With over 76‚000 employees they produce over 55‚000 products‚ including: adhesives‚ abrasives‚ laminates‚ passive fire protection‚ dental products‚ electrical materials‚ electronic circuits and optical films Richard Drew June 22‚ 1899 – December 14
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WHAT IS THE PRINCIPLES OF OPTICAL DEVICES‚NAME AND EXPLAIN FEW ! ANS:Storage and retrieval of data on optical disks can be described in two simple steps. First‚ data marks are recorded on a surface. Data marks can be prerecorded‚ like on a music CD‚ or they can be recorded by users on blank disks‚ like with CD-recordable products. The second step is retrieval of information from the disk‚ where a light beam scans the surface. Modulation in the reflected light is used to detect the data-mark
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Wong compared the Princess Barbie she longed for with blond hair‚ a beautiful shiny gown‚ and a shimmery white tiara (Wong 246) with a unfamiliar‚ black-haired "friend" of Barbie as a gift for Christmas (Wong 246). Wong originally found her dull compared to Barbie (Wong 247). As the essay continues‚ Wong realizes that this black-haired doll she disliked actually looked like her‚ while the more "prettier"‚ blond Barbie looked like Wong’s best friend‚ Sarah. This is the point of comparing. (Wong 248)
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3M Company (NYSE: MMM)‚ formerly known as the Minnesota Mining and Manufacturing Company‚ is an American multinational conglomerate corporation based in Maplewood‚ Minnesota‚ a suburb of St. Paul. With over 76‚000 employees‚ they produce over 55‚000 products‚ including: adhesives‚ abrasives‚ laminates‚ passive fire protection‚ dental products‚ electronic materials‚ medical products electronic circuits and optical films. 3M has operations in more than 60 countries – 29 international companies with
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Andy Goldsworthy Practice: His work is ephemeral- not going to last forever. Because is artwork doesn’t last‚ the videos/ photos become the artwork. Through the making of his artwork‚ he learns about nature It is always straight to work- no time for research on the area he is in. He has been taking photographs since school- it is the way that he documents his artwork It is his way of reflecting on what he has make He doesn’t have a clear picture of what it is he is going to make- he goes
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by his terrific methods. Although being a very funny guy‚ Harry Wong is obviously very passionate about making us effective teachers. Harry Wong makes very valid points about effectiveness in the classroom and a new road to teaching. Wong explains in his video that simple things some teachers brush off can make all the difference to the kids. First time teachers make the most mistakes on the first day‚ such as a seating chart. Wong suggests that it saves time and helps keep the students calm. You
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pop art research Andy Warhol: Warhol was an US painter‚ film-maker and author‚ and a leading figure in the Pop Art movement. Andrew Warhola was born in Pittsburgh‚ Pennsylvania. His parents had emigrated to the USA from Ruthenia‚ a region now in the Slovak Republic. Between 1945 and 1949 Warhol studied at the Carnegie Institute of Technology. In 1949‚ he moved to New York and changed his name to Warhol. He worked as a commercial artist for magazines and also designed advertising and window displays
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The Three Rivers Optical Case MKT 7850-60 1.1 Introduction According to Jobson Medical Information‚ as of 2008 the U.S optical retail market was a $23.5B industry. This number excludes refractive surgery‚ reader and sunglasses sales at non – optical retail locations and contact lens sales by mail/internet suppliers.
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Introduction 3M stands for Minnesota Mining and Manufacturing Co. It was founded by five businessmen in 1902 at the town of Two Harbors‚ Minn (3M‚ 2012). They originally financed the company to mine the mineral cornundum for grinding wheel abrasives but the investment became a failure because it turned out that the mineral was actually low-grade anorthosite (Goetz‚ 2011). After being done with mining‚ the founders bought a sand paper company but struggled on how to run it. Eventually‚ Lucius Ordway
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