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laser

Title: laser
Category: /Science & Technology
Details: Words: 979 | Pages: 4 (approximately 235 words/page)
laser
The Laser Before we can learn about the laser we need to know a little bit about light (since that is what a laser is made of). Light from our sun, or from an electric bulb, is called white light. It is really a mixture of all the different colours of light. The colours range from violet, indigo, and blue, to green, yellow, orange, and red. These make up the visible part of the electromagnetic …showed first 75 words of 979 total…
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…showed last 75 words of 979 total…to make high capacity audio and video recording and playback (music CD's and laser disk players). The militaries of the world use lasers for many things including tracking enemy movements and as anti-satellite and ballistic missile defence weapons. Some people might say that the laser is one of the most important advances in human technology ever, and some might not, but it is definitely one of the most important advances in the twentieth century. --------------------------------------------------------------

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