Want this question answered?
The invention of the telescope is credited to Hans Lippershey. Crude telescopes and spyglasses may have been created much earlier by Dutch opticians, but Lippershey is believed to be the first to apply for a patent for his design. His telescope was made up of one convex lens and one concave lens.Galileo Galilei perfected it by using two convex lenses. He constructed his first telescope in 1609. This telescope is called the Galilean telescope or the refracting telescope.Isaac Newton invented a telescope which used two mirrors. He constructed his first telescope in 1669. His version of the telescope was called the Newtonian telescope or the reflecting telescope.
The Hitch-Hiker's Guide to the Galaxy is 100% fact in the 42nd dimension.
It seems to me that the main idea is captured on the cover of The Hitchhiker's Guide to the Galaxy."Don't Panic"
its a water turbine
Space
The problem with Hubble Space Telescope (the HST, or just the "Hubble") was that the primary reflector, that is, the mirror which redirects the incoming light to focus it, was ground using an incorrectly calibrated reference as a guide. This left it "out of focus" in areas farther from the center. There were a couple of checks for accuracy made with secondary references, and they were off, but the "warning" was ignored and the opinion was offered that the two secondary references were not as accurate as the primary reference was. More information can be had by reading the Wikipedia post on the Hubble. A link to that post can be found below.
Famous peopleThe star maps in Hollywood have about two hundred. AstronomyThe Guide Star Catalog is an online catalog of stars produced for the purpose of accurately positioning and identifying stars satisfactory for use as guide stars by the Hubble Space Telescope program. The first version of the catalog was produced in the late 1980s by digitizing photographic plates and contained about 20 million stars, out to about magnitude 15. The latest version of this catalog contains information for 945,592,683 stars, out to magnitude 21.USNO-B1.0 is an all-sky catalog created by research and operations astrophysicists at the U.S. Naval Observatory, that presents positions, proper motions, magnitudes in various optical passbands, and star/galaxy estimators for 1,042,618,261objects.
The Whole Internet User's Guide & Catalog, published in 1992
An online visual guide can help you understand what is involved in building a telescope. www.howtelescopeswork.com
The very first edition of the Parker Car guide was published in March of 1972. It is the longest running price guide available to the public.
The articles published in the TV Guide range from interviews with stars of television shows to director quotes and interviews.
The publisher of the book "Your Child: A Medical Guide" is the Editors of Consumer Guide
Leonard Matlin's Movie Guide was first published in the United States in 1969. It has been published annually since then and now has a companion guide for movies made before 1960, as the annual edition needed to eliminate them for length.
catalog
Card Catalog is the guide to the collection of books in a library. it is an alphabetical listing of all the books in the library, together with information on where they maybe located on the library shelves. Catalog card is the 3x5 card or index which consist of clasification numbers and biblioraphical information.
What catalog do you recommend as a price guide for old foreign stamp prices?
2013