hubble telescope
Essay specific features
Written by:
Philip L
Date added:
March 27, 2014
Level:
University
Grade:
A
No of pages / words:
4 / 1116
Was viewed:
4006 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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