Web Definition: Telescopes
A telescope is an important astronomical tool which gathers & focuses electromagnetic radiation. Telescopes increase the apparent angular size of objects, as well as their apparent brightness. Galileo Galilei is credited with being the first to use a telescope for astronomical purposes in 1609. Shortly later, Johannes Kepler described the optics of lenses, including a new kind of astronomical telescope with two convex lenses. Telescopes used for non-astronomical purposes are often referred to as theodolites, transits, spotting scopes, monoculars, binoculars, camera lenses, microscopes or spyglasses. The word telescope usually refers to optical telescopes, but there are telescopes for most of the spectrum of electromagnetic radiation. Radio telescopes are focused radio antennas, usually shaped like large dishes. The dish is sometimes constructed of a conductive wire mesh whose openings are smaller than a wavelength. see aperture synthesis. The current record is nearly the width of the Earth. Aperture synthesis is now also being applied to optical telescopes.
My Telescope
Looking For My Telescope? Review And Compare Online.
www.findstuff.com
Telescopes
Telescopes Great Selection Of Telescopes
insights1.com
Telescopes Info
Get Info on Telescopes from 14 search engines in 1.
www.info.com
The Telescopes Directory
Directory Of Telescopes Providers. Find Telescopes Quickly.
nomadik.com
Telescope
Searching More Choices for Telescope? 5 Recommendations for Telescope
genialfinder.com
Telescopes
All the Brands, All the Savings. Start here for Telescopes!
telescopes.allthebrands.com
All The Telescopes
Telescope Savings! Telescope Shoppers Start Here.
telescopes.alltheindustrials.com
A Telescopes
Find Sports & Outdoors Products. Compare Prices, Product Reviews.
bizrate.com
Telescopes
Looking For telescopes? Search Local.Com To Find One!
www.local.com
Telescope
Get Top Results for Telescope? Find More Results for Telescope
shopful.net
Telescope
Our unique system allows you to search for Web Sites and Products in one simple place, try us today. You will not be disappointed!...
neonoffers.com - See Also: Web Sites »
Telescopes Information
Learn about telescopes
couponmountain.com
Meade Telescopes
If You Are Searching Meade Telescopes, See Top Choices for Meade Telescopes
webnosecret.com - See Also: Meade Telescopes »
Meade Telescopes
Meade Telescopes? See 5 Top Choices
genialdeals.com
Buy Telescopes
Low, Factory-Direct Prices on Over 1,000 Telescopes and Accessories.
www.oriontelescopes.com
Are You Overweight?
Find out your ideal body weight with our healthy weight calculator! Its fast, easy, and FREE!
www.everydayhealth.com - See Also: Weight Calculator »
Nightvisiongoggles,Scopes
We are proud to offer the latest NightVision Products,BlackoutFilters
pronightvision.com
