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Reflecting Telescopes
One of the first reflecting telescopes was developed by Sir Isaac Newton in
1680. Sir Newton was looking for a better way to view the heavans...
While there were refracting
telescopes available, they had their difficulties.
Refracted light splits into its various wavelengths or colors producing a
rainbow effect when going through the tube of a refracting telescope at that time.
This was a real problem as
all the images were
su
rrounded by a rainbow of color.
Isaac Newton concluded that it was impossible
to refract light without this occurring. The mathematical genuis's
"newtonian reflecting telescope" was followed up by John
Hadley who in 1722,
developed a telescope that used parabolic mirrors.
The reflecting telescope uses a curved mirror instead of a lens to focus the
light and having a wider field of view than refracting telescopes as well as
greater focal ratios and magnification. This means they are excellent for
viewing distant nebulae and galaxies as well as nearby star clusters and comets.
They are fairly easy and cheap to make a simple reflecting telescope at home. It is essential
that the mirrors are
squeaky clean and in a perfect line to get a decent picture. If a mirror is
ground wrong, it will distort the image. These scopes have huge light focusing
ability and you will be able to get fantastic views of distant objects and take
pictures of what you can see.
Once you have made your reflector telescope, you can have fun and see what distant spot in the universe catches your eye. There are so many awe inspiring things to watch and take pictures of.
About the Author: Scott Harker is the publisher of several websites including: Sherlock Holmes Pastiches, Hyperhidrosis, Samurai Weapons, Baby Care Blog, and the Spotlight on Science Blog.
An explantion of the reflector telescope and how it differs from a refractor. Lots of projects and activities like this are on the website at: http://www.stormthecastle.com
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News About Reflecting Telescopes
 Kykernel.com (subscription) | Opportunity to stargaze available to students Kykernel.com (subscription) AST 191 and 192 students are able to stargaze using the 20-inch reflecting telescope positioned in the center of the dome-shaped observatory, ... |
Engineering a challenge for high school students Canowindra News ... balloon powered cars, reticulating water systems, reflecting telescopes and fixed arm helicopters. Each activity was scored on specific criteria, ... |
The '51 Observatory: a new view of the sky The Miscellany News The Class of 1951 Observatory is home to two large reflecting telescopes in separate domes. Every Wednesday, the Observatory is open for ... |
Explore the universe at Chabot Space and Science Center San Jose Mercury News Each one — historic 1883 Leah with an eight-inch lens; Rachel, a 20-inch refracting telescope; and Nellie, a 36-inch reflecting telescope — can't help but ... |
 Suburban News | Amateur Astronomers Inc., explore the mystery of Mars Suburban News Visitors can view Mars and many seasonal objects through the 24-inch reflecting telescope and the 10-inch refracting telescope free of charge. ... |
Cambridge scientists feature on The Royal Society's 350th Anniversary stamps Media Newswire (press release) Described how gravity works, laid down the three laws of motion and built the first practical reflecting telescope. Ernest Rutherford - key figure who ... |
Reflecting Telescopes For Sale
Old Gilbert Reflecting Telescope Deluxe 80 w box vintag
US $3.24 (2 Bids)End Date: Wednesday Mar-10-2010 8:20:14 PST
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Polaris Telescope Meade DS-2000 Reflecting Remote
US $50.00 (1 Bid)End Date: Sunday Mar-14-2010 13:33:19 PDT
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Gilbert Reflecting Telescope Deluxe 80 w/Box. 1962
US $9.99 (0 Bid)End Date: Sunday Mar-14-2010 14:17:06 PDT
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6" Reflecting Telescope & Tripod HowTo build PLANS 200x
US $5.95 (0 Bid)End Date: Sunday Mar-14-2010 19:18:31 PDT
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