Program
13, Episode 303
How
It Works
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Before the
early 1600's, astronomers
had few reliable means
to study the stars and
planets in our solar system.
They depended on inaccurate
tools that could not properly
observe the cosmos. This
all changed early in the
1600's with the development
of a new devise called
the "telescope". |
Today the telescope is one of
the most recognizable tools used
by professional and amateur astronomers
alike. Although telescopes have
dramatically improved since the
1600's, the basic design remains
the same. Although telescopes
have been around for hundreds
of years, people still don't
know exactly how they work.
Additional Information
http://www.howstuffworks.com/telescope.htm
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