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Originally, projectors only made use of slides and transparencies. These slides and films were of a semi-transparent material so that light can pass through thereby projecting the images on these mat...
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The biggest risk to life from computers is electricity. Electric shock from mains voltage is often fatal. Ensure that cables are inserted correctly and are checked regularly. Computers and associated ...
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EYESTRAIN Eyestrain is the most common weariness that most computer users all over the world experience. A number of symptoms associated with eyestrain have been experienced and proved worldwide. ...
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It sounds like a nefarious plot cooked up by authors fascinated with conspiracy theories – one that involves rubber facemasks, contact lenses, and finger print imitations. However, identity ...
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Viewing Angle–Height and Side-to-Side Fig. 9 – viewing angle Probable Risks When you work in front of your computer for long hours ...
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Vision therapy, an optometric specialty treatment, has been clinically shown to be an effective treatment for accommodative disorders (non-presbyopic eye focusing problems), binocular dysfunction (ine...
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Overhead projectors are standards tools in classrooms and in office presentations. These projectors bring to life images onto the screen, and make information more eye-catching. These are effective ...
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In most organizations, computers are an essential tool to get the work done. Though it creates quite a lot of problems, with the proper equipment, ergonomic workstation design, proper techniques and w...
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A predecessor to the overhead projector, an opaque projector is mainly used to readily project images from books, magazines, photographs, full-color pictures, charts, and diagrams onto a screen. It r...
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Probable Risks 1) If the ventilation system is poorly designed or not functioning properly, the user may experience discomfort. For instance, air conditioners or heaters that directly "dump" air on ...
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Projectors have a wide array of uses. It can be used for home theater, video gaming, business & educational presentations, and many more. One can even see these being used in churches for song lyric...
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