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The first part of this activity demonstrates the inner workings of a telescope, and the second part demonstrates how to construct a simple refracting telescope. Within a refracting telescope there are two lenses: an objective lens and an eyepiece. www.amnh.org/education/resources/rfl/pdf/du_x02_telescopes.pdf.
17 Aug 2007 served their purpose if they encourage beginners to construct simple telescopes for sight seeing the skies. If they make this important beginning it is likely that in course of time they will become serious amateurs for whom the more advanced books will be indispensible; especially recommended is the book
How Do I Build A Telescope At Home.pdf - Download as PDF File (.pdf), Text File (.txt) or read online.
How to make a Galileian Telescope. I. THE BASICS – THE PRINCIPLES OF OPTICS. A Galileian telescope uses just two lenses. The objective lens is convergent. (plano-convex), the ocular lens is divergent (plano-concave). The ocular lens is placed on the optical axis so that its focal point coincides with that of the objective
BUILDING THE PERFECT TELESCOPE by Dave Trott. This six inch reflector is very close to "the perfect telescope" in many ways. It is inexpensive, reasonably portable, gives good performance on planets, the moon and deep sky objects and is simple. It is a telescope for the people. Most anyone who wants a telescope can
Nowadays, professional astronomers use another type of telescope that is different to the first telescope invented (the refractor telescope.) This other kind of telescope can be over 10m in diameter! It is called a reflector telescope. It was invented by Isaac Newton around 1670. The main difference is that it uses curved mirrors
Building your own telescopes. Table of contents. 1. Introduction. 3. 2. The shapes of lenses. 3. 3. Does it matter which way round I use a lens? 4. 4. Refraction as light passes through a lens. 5. 5. Rays of light and ray diagrams. 6. 6. Parallel rays of light – 'infinity'. 7. 7. White light and dispersion – chromatic aberration. 8. 8.
If you think you would like to own a telescope you are faced with the question: “Shall I just go out and buy a telescope or shall I build my own?" There are compelling arguments each way. Buying is easier and quicker than building. Plus, over the past 20 or so years, costs for commercial telescopes have come way down.
4 Telescope Making Basics. 4.1 Choosing a Telescope. The choice of which telescope to make depends on many things among which are the kind of observing you want to do and the optical and mechanical characteris- tics that kind of observing program requires, your financial resources, and the amount of time you have
Activity: 15. Building a Telescope. Theory. A. B. Objective. Science and Mathematics Standards. Materials. In a telescope, the lens held next to your eye is called the eyepiece and is usually a short focal length lens or a combination of lenses. The lens at the other end of the telescope is called the objective lens. Light from.
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