Blue Ray

Essay specific features

 

Issue:

Technology

 

Written by:

Paulette R

 

Date added:

September 26, 2011

 

Level:

University

 

Grade:

A

 

No of pages / words:

34 / 9291

 

Was viewed:

1024 times

 

Rating of current essay:

 
Essay content:

Laser is short for: Light Amplification by Stimulated Emission of Radiation. In a nutshell this means that high emitted energy gives radiation in the form of light, sort of like a lightbulb does. However laser light is very different than your average lightbulb. Laser comes in a straight direct beam and in only one wavelength (only red, only green, only blue etc)...
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However laser light is very different than your average lightbulb. Laser comes in a straight direct beam and in only one wavelength (only red, only green, only blue etc). This wavelength is measured in nanometers and science uses the Greek letter Lamda () for this. Because a laser is a very tiny and direct beam it is perfect to reflect the data written on a cd, because the data is long (over 3 miles!) but it is very small (about 5 microns)...
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