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Essay

hubble telescope

Essay specific features

 

Issue:

Technology

 

Written by:

Philip L

 

Date added:

March 27, 2014

 

Level:

University

 

Grade:

A

 

No of pages / words:

4 / 1116

 

Was viewed:

4110 times

 

Rating of current essay:

 
Essay content:

After being deployed, astronomers immediately found out that the telescope could not be focused. They found the problem and discovered that the primary mirror had been ground to a wrong dimension at the Perker-Elmer Corporation's factory. Although the defect in the mirror was less than one-fifth the size of a human hair, it was enough for the Hubble Telescope to suffer from spherical aberration, light reflected from the mirror's edge gets focused to a slightly different point than light reflected from the center, and produce fuzzy, unclear images...
displayed 300 characters

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Although the defect in the mirror was less than one-fifth the size of a human hair, it was enough for the Hubble Telescope to suffer from spherical aberration, light reflected from the mirror's edge gets focused to a slightly different point than light reflected from the center, and produce fuzzy, unclear images...
displayed 300 characters

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