101. EHobbies.com - Your Online Hobby Shop Featuring RC Cars, Telescopes, Train Sets, Wide selection of RC cars and trucks, trains, models, telescopes, and rocketry. http://www.ehobbies.com

No sales tax on ALL orders shipped outside of California! Check out our new Clearance Corner! Rocketry Sale! eHobbies Auctions! Over 1000 Die-Cast Models! ... Shop by your Favorite Brand Welcome to eHobbies! WARNING...Do NOT click here unless you are serious about R/C Most Popular Items for Games * Texas Hold 'Em Complete Poker Set in a Tin - CR 1425 Regular price: eHobbies price: You Save: $3.01 (11%) Die Cast - Hot Wheels 1/18 Corvette C6 Convertible (Black) - HOT C7526 Regular price: eHobbies price: You Save: $7.00 (23%) Die Cast - Jada 1/18 Dub City 2002 Chevy Silverado (Metallic Red) - JAD 63112 R5 Regular price: eHobbies price: You Save: $15.00 (39%) Radio Control - Jada 1/10 Import Racer RC Spec Toyota Supra (Pearl White - 27 MHz) - JAD 83355 A Regular price: eHobbies price: You Save: $20.00 (29%) Radio Control - Jada 1/10 Import Racer RC Spec Mazda RX8 (Metallic Red - 27MHz) - JAD 83285 A Regular price: eHobbies price: You Save: $20.00 (29%) Die Cast - Ertl 1/10 OCC American Chopper (Black Widow) - ERT 78926 Regular price: eHobbies price: You Save: $5.00 (20%)

102. Telescope Unfortunately the telescopes built on Lippershey s model had poor image quality, caused by the bending of light though the glass lenses. http://www.yesmag.bc.ca/how_work/telescope.html

This page is no longer being maintained but is left here as a service to those who have links to it. How Does That Work? The Telescope: A Bit of History In 1608, a Dutch eyeglass maker named Hans Lippershey looked at a church steeple through two lenses placed one in front of the other and saw that the image was magnified. Unfortunately the telescopes built on Lippershey's model had poor image quality, caused by the bending of light though the glass lenses. (Glass does not bend the different colors of light equally. Red light is bent the least causing a colour distortion in the image.) Isaac Newton eventually solved this problem in 1668 by making a telescope that worked with mirrors instead of lenses. Galileo Galilei was the first person to use the telescope to seriously study the heavens. Galileo was able to see that the moon was not smooth, but covered with huge valleys and craters. He discovered four moons orbiting Jupiter and found out that Venus has phases just like the moon. He realized that this must mean that Venus, and the other planets, revolve around the sun not around the earth, as many people believed at the time. In 1610 Galileo published a book about what he had seen through his telescope. Starry Messenger became the seventeenth-century equivalent of a bestseller. Not bad!

103. Telescopes & Binoculars With Customer Labels Offers customer labeled telescopes and binoculars to a wide range of businesses as corporate gifts and promotional tools. http://binoculars-telescopes.com/

B2B Sports Optics We offer top quality telescopes and binoculars directly from factories at great savings. Virtual factory tour Product gallery Individual buyers Customer labels Corporate gifts ... Contact information Welcome to our factories. We have been making top quality telescopes, binoculars, spotting scopes, and rifle scopes for tens of years. Our factories have supplied many of the well-known brand names. Now, these telescopes, binoculars, and other sports optics are available to you directly from the production lines. This factory direct concept is only possible with the WEB and we pass on the savings directly to you. We provide customer labels, corporate gift packaging, and other services to business customers. We also let individual buyers save big. Our products include telescopes for amateur astronomy, binoculars for sports and wildlife enthusiasts, and spotting scopes for terrestrial viewing and photography: refractor telescopes, reflector telescopes, Matsutov-Cassegrain spotting scopes, rifle scopes, compact binoculars, standard binoculars, waterproof binoculars, eyepieces and other accessories. Sorry, your browser doesn't support Java.

104. TELESCOPES THE PHYSICS OF telescopes. As of recently, astronomy has become a big part of my life. Like everything else in this world, telescopes are all about physics. http://www.kent.k12.wa.us/staff/trobinso/physicspages/PhysOf1998A/Telescopes-Wri

THE PHYSICS OF TELESCOPES As of recently, astronomy has become a big part of my life. With astronomy, of course, comes the desire to spend hours gazing at the stars. You can do this with just your eyes or a good pair of binoculars, but if you really want to see the sights of the universe, a telescope is an essential tool to have. Like everything else in this world, telescopes are all about physics. The systems of mirrors and lenses that are contained in them can be understood with some very basic knowledge about optics, which this page is intended to provide. Anyone who owns a telescope should understand the optics that it uses, and even those who don't own one could probably benefit from such an explanation. There are three main types of telescopes. First (and most important, in my humble opinion), is the reflecting telescope. (Trust me. You will get sick of hearing about them.) Acting somewhat as the opposite of the reflecting are the refracting telescopes, and the third kind, the catadioptric telescope, is kind of a combination of the first two. Reflecting telescopes (once again, in my opinion), have the best of the three general optics systems. (It could be argued that the catadioptric models are best, but again, this is

105. BC Telescopes Binoculars Vancouver Island British Columbia Canada telescopes, binoculars, refractors, reflectors, eyepieces, and accessories for amateur astronomers and nature enthusiasts. Brands include SkyWatcher, Antares, Orion, Meade, Speers Waler, Swarovski, Carton, Telrad, Thousand Oaks Filters, Pentax, Bushnell and Bausch Lomb. Located in Canada. http://www.bctelescopes.com/

Products... About Us What's New Specials Refractors ... Links Gift Certificates available. LIMITED TIME OFFER - FREE SHIPPING IN CANADA of Sky-Watcher Telescopes Phone or email us for pricing. We ship across the globe! Email: Prices subject to change without notice Visual Illusion Web Design var site="s13vitelescope"

106. The Very Large Telescope Project The ESO Very Large Telescope will consist of four 8meter telescopes which can work independently or in combined mode. In this latter mode the VLT provides the total light collecting power of a 16-meter single telescope, making it the largest optical telescope in the world. http://www.eso.org/projects/vlt/

The Very Large Telescope Project HOME INDEX SEARCH HELP ... NEWS ESO is building what will be the World's largest optical telescope array, The Very Large Telescope (VLT). The VLT Project organisation is responsible for the design and construction of the Unit Telescopes, including enclosures, optics, adapter-rotators and coating unit. It is based at the ESO Headquarters in Garching, Germany. The VLT Project The ESO Very Large Telescope will consist of four 8-meter telescopes which can work independently or in combined mode. In this latter mode the VLT provides the total light collecting power of a 16 meter single telescope, making it the largest optical telescope in the world. The four 8-m telescopes supplemented with 3 auxilliary 1 m telescopes may also be used in interferometric mode providing high angular resolution imaging. The useful wavelength range extends from the near UV up to 25 microns in the infrared. The Paranal Observatory is located on Cerro Paranal in the Atacama Desert, northern Chile. Science operation with the first unit telscope (UT1) is scheduled for the first half of 1999. Full operations of all telescopes is expected shortly after the turn of the century. The latest news, press releases, and other information material

107. Telescopes.ca - EfstonScience's Astronomy & Observing Online SuperStore WEB SPECIAL $810.00. These specials are only available online at telescopes.ca. Featured Products from the telescopes Observing Equipment Catalog. http://www.escience.ca/telescopes/

document.write("") Cosmic Connections VIDEO Getting the most out of your telescope Observing Tools Satellite Map Local Weather Star Chart Astronomy Gallery ... 8'' f/6 Dobsonian Telescope regular $599.00 WEB SPECIAL Carton Adlerblick 10x50 Binocular regular WEB SPECIAL NewStar 70mm Beginner's Telescope regular $219.00 WEB SPECIAL Now includes FREE tripod Bushnell 60mm Space- Master Spotting Scope SAVE MB-3 Waterproof NightVision Monocular regular $439.00 WEB SPECIAL Orion StarMax 127mm EQ Compact ''Mak'' Telescope regular $949.00

108. Home Advice for beginners on using Schmidt Cassegrain telescopes. Includes equipment recommendations, visual observing and astrophotography tips. http://home.earthlink.net/~tkurkowski/

Due to the amount of traffic on the SCT Site for Beginners web site, I had to move it to a new web hosting service. Please update your bookmark to: http://SctScopes.net/index.html and click on the above URL to go to the new location. Thanks!

109. Isaac Newton Group Of Telescopes Click Here or Photo to enterClick Here or Photo to enter. Obsession telescopes Web Site http//www.globaldialog.com/~obsessiontscp/OBHP.html. http://www.ast.cam.ac.uk/ING/

News: GLAS: a Rayleigh laser for the WHT Latest Schedules and Time Allocations ING Newsletter No. 7, December 2003 ING web site: http://www.ing.iac.es UK mirror site: http://www.ast.cam.ac.uk/ING/

110. Cameras And Telescopes In Colorado, Technik Camera Photography equipment, telescopes, accessories, film, paper, new and used. http://www.technikcamera.com/

A family owned Colorado Corporation Under Construction Please bear with us while we make our site easier to navigate and add new features. 4356 South Broadway Englewood Colorado 80110 voice 303 789 4850 fax 303 789 0601 Last update A pril 24th , Technik Camera Repair, Inc. visitors since January 1, 2000

111. Wins Binoculars And Telescopes Manufacturing binoculars, telescopes china night vision viewer,medical optical instruments,biological microscopes, riflescopes, spotting scopes. http://www.winsbinoculars.com/

Wins Binoculars and Telescopes BINOCULARS ASTRONOMICAL INSTRUMENTS NEW STEREO MICROSCOPES NEW BINOCULARS NEW RIFLE SCOPES MONOCULAR NEW MEDICAL OPTICAL INSTRUMENTS NEW COMPASS CHALLENGER SPOTTING SCOPES NEW NIGHT VISION VIEWER BIOLOGICAL MICROSCOPES CHEAP MICROSCOPES PREFACE Wins Binoculars and Telescopes is a professional binoculars manufacturer and exporter in China . We have integrated binoculars series products. We also have 10 years experience of cooperation with many world famous optics companies Making full use of its superiority in producing ordnance products, the factory is devoting Itself to the research and applications of optical, electronic, infrared and night vision technology, Its major products are precision optical instruments with combination of optical, mechanical and electronic components. It possesses a comprehensive production system from the melting of optical glass, optical processing, precise machining, manufacturing of high technical photo image forming devices, surface finishing and instrument assembling. The major products of the company: binoculars, medical optical instruments, infrared and night vision instruments, microscopes, telescope, riflescope, camera zoom lens and SN series printed circuit DC motors, special equipment and auxiliary materials for optical processing. More than one hundred types of binoculars are waiting for your sensible choice. 95% of our products are distributed to

112. Carnegie Observatories The observatories operates 1.0meter and 2.5-meter telescopes at Las Campanas, Chile. Two 6. 5-meter telescopes are being constructed by the Magellan project collaboration. Telescope time, available to the observatories' scientific staff and visiting investigators, is scheduled once a year, with time allocation applications due in mid-october. http://www.ociw.edu/

C A R N E G I E O B S E R V A T O R I E S The Observatories of the Carnegie Institution of Washington (OCIW) was founded by George Ellery Hale in 1904. Located in Pasadena, California, we operate telescopes at our site on Cerro Las Campanas, Chile. New and Updated Pages Anonymous FTP Server Search Publications and Library Services ... About Us Information on the staff and history of The Observatories. Research The research interests of Carnegie staff astronomers. Giant Magellan Telescope The partners of the Magellan Telescope Consortium are developing a next generation optical/IR telescope The Giant Magellan Telescope (GMT). The primary will consist of seven 8.4m diameter mirrors. The telescope will have the resolving power of a filled aperture 24.5 meters in diameter and will have 10 times the collecting area of each of the Magellan 6.5m telescopes. Magellan Project Telescopes The Magellan Project is a collaboration between the Observatories, the University of Arizona, Harvard University, University of Michigan, and MIT to construct two 6.5 Meter optical telescopes in the southern hemisphere. The telescopes are located at Las Campanas Observatory, Chile, and operated by OCIW. First light for the Walter Baade telescope occurred on September 15, 2000. The Landon Clay telescope started science operations on September 7, 2002.

113. The Magellan Telescopes - Index Magellan, The Magellan telescopes Two 6.5m telescopes at Las Campanas Observatory, Magellan. Magellan telescopes News and Forums! Science Results Images. http://www.ociw.edu/lco/magellan/

The Magellan Telescopes Two 6.5m Telescopes at Las Campanas Observatory Observatories of the Carnegie Institution of Washington University of Arizona Harvard University ... Magellan Telescopes News and Forums! Observatory Information: Telescope Schedule Telescope Specs Environmental Information Instruments Observer Information: Visiting Observer Guide Creating Observing Catalogs Computer Information Ephemeris for LCO Forms/Reports: Travel Arrangements Form Instrument Setup Request Forms Daily Telescope Report Form Magellan Problem Reporting and Tracking ... Observing Run Report Form Observatory Personnel: LCO Personnel Directory Telephone Directories General Information: Project History Basic Safety Information Transport Schedule (Movimiento de Vehiculos) Operations Information: Operations Homepage (local!) Technical Staff Turnos Updated on Thursday, March 25, 2004 dosip@lco.cl

114. Mike Lindner's Telescope Making Offers links to completed telescopes, free mirror testing software, and the Telescope Making Web Ring . http://home.att.net/~mikel/

This site is a member of WebRing. To browse visit Here Miscellaneous Stuff Download Chuck Hards Woodshop Telescope Plans MS Word document and AutoVue Pro drawing . View some photos [ scope-1.jpg scope-2.jpg scope-3.jpg ] of Chuck Hards fiberglass telescopes. Major Tom Krajci sent me these diagrams of designs for 4 and 6 point mirror cells. A formula for coma posted by Richard Schwartz David Williams sent me these photos of his scope, patterned after a scope in Making and Enjoying Telescopes . Chek out the nice woodwork. I am webmaster and newsletter editor for my local astronomy club, STAR Astronomy . Please visit us! My first telescope is a 6'' dobsonian that I built myself, including grinding the optics. Source code from my article on hashing in the Nov./Dec. 1996 issue of C++ Report ATM book reviews. An Excel spreadsheet and another Excel spreadsheet by Tom Krajci, for designing a dob mount using springs instead of counterweights, I recently acquired a used 13.1'' Coulter, and have been modifying it. I wrote an article on my construction of a 6 point flotation mirror cell . I finally ``finished'' it (for now). Here are a couple of pictures and some text describing it.

115. NRAL - VLBI: Image Gallery - Radio Telescopes Image Gallery World Radio telescopes. This gallery contains thumbnail images of some of the world s most important radio telescopes. http://www.jb.man.ac.uk/vlbi/gallery/radtel.html

Image Gallery - World Radio Telescopes This gallery contains thumbnail images of some of the world's most important radio telescopes. Click on an individual image for the full size version. VLBA Mauna Kea VLBA Brewster Owens Valley 130-ft VLBA Owens Valley ... Ny Alesund 20-m If you have any images of radiotelescopes that you would like us to include on this page, please contact agg@jb.man.ac.uk . Thank you. UMan NRAL VLBI Home EVN ... Feedback

116. Antique Telescope Society Historical documents, galleries and information on maintaining and restoring old telescopes. http://www1.tecs.com/oldscope/

117. Basic Topics telescopes. The purpose of a telescope; Telescope designs; Famous telescopes; What are adaptive optics? The Hubble Space Telescope; The http://astrosun2.astro.cornell.edu/academics/courses/astro201/top_telescope.htm

Telescopes The purpose of a telescope Telescope designs Famous telescopes What are adaptive optics The Hubble Space Telescope The Global Oscillation Network Group project GONG What is an interferometer How will the GBT work? How does the Arecibo telescope work? AO after upgrade with line feed too. inside the radome. To map the moon with Arecibo requires multiple beams.

118. Antique Historical Scientific Instruments A Private Collection Containing historic Surveying Levels, Sundials Astrolabes, Microscopes, Globes, Chronometers, Sextants, telescopes, Theodolites and Graphometers. http://www.antique-scientific-instruments.de

119. Telescopes HOW DOES A TELESCOPE WORK. Astronomers use telescopes to focus and collect electromagnetic radiation from cosmic sources. Most people http://astrosun2.astro.cornell.edu/academics/courses/astro201/telescope.htm

HOW DOES A TELESCOPE WORK Astronomers use telescopes to focus and collect electromagnetic radiation from cosmic sources. Most people are only familiar with optical telescopes, that is telescopes that detect radiation in the visible spectrum. BUT.... Since gamma-rays, x-rays, radio waves, infrared waves and ultraviolet waves are also forms of electromagnetic radiation, telescopes can also be designed to detect those waves. Optical telescopes make use of either lenses or mirrors to focus the incoming optical light waves. A refracting telescope uses lenses. Because big lenses are expensive and difficult to build and then support as part of a telescope, the refractor design is not commonly used for large telescopes today. Refractors also suffer from chromatic aberration, because different wavelengths do not all focus to the same point. A reflecting telescope uses mirrors to bend and focus the light rays. Radio telescopes reflect and focus radio waves similarly; they are all reflecting telescopes of one design or another. The Green Bank Telescope will be a fully steerable paraboloid, with an offset feed allowing an unblocked aperture.

120. Astronomy.com | For Beginners Offers basic and essential astronomy information, including product guides on telescopes and binoculars, buying guides to purchase the right telescope, observing tips, glossary, and astronomy FAQ. http://www.astronomy.com/Content/static/beginners/default.asp

Main Page Buying Guide Observing The Basics ... Vendor Directory = registered content Articles Photo Gallery Events Organizations Vendor Directory Register to become a member! Gain access to our customizable Star Chart, Forums, Astronomy Quiz, Weekly Newsletter, and more. Register to become a member Learn More Help with login/registration Forgot your Password? Member Login Username Password FOR BEGINNERS MAIN PAGE If you're new to astronomy, you've come to the right place. Here we offer you the tools needed to pursue, what we hope will be, a lifelong interest in astronomy. There are five main components to our "For Beginners" section. They include: The Basics : Here we provide you with information on the essentials. There are guides to products such as telescopes and binoculars, as well as articles that present fundamental tools to better understand the science and hobby of astronomy. Buying Guide : The Astronomy.com staff is often asked, "What telescope should I buy?" To help you cut through the chaff, we've designed an interactive guide that helps you determine which telescope type works best for your needs. Through a series of questions, you are led down a path to the type of telescope that best suits your observing interests, income level, knowledge base of astronomy, and more. Observing : Whether it's an upcoming solar eclipse or a beautiful pairing of the moon and Venus, we'll provide you with the tips and tools to make your sky-viewing session a success.

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