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laser
Title: laser
Category: Science & Technology
Details: Words: 993 | Pages: 4.2 (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 993 total…
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…showed last 75 words of 993 total…used 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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