Advice for stirring your online community and fostering engagement
When you enter into any new area of science, you almost always find
yourself with a baffling new language of technical terms to learn before you can converse with the experts. This is certainly true in astronomy both in terms of terms that refer to the cosmos and terms that describe the tools of the trade, the most prevalent being the telescope. So to get us off of first base, let’s define some of the key terms that pertain to telescopes to help you be able to talk to them more intelligently. The first area of specialization in telescopes has to do with the types of telescopes people use. The three designs of telescopes that most people use are the Refractor, the Reflector and the Schmidt Cassegrain telescope. The refractor telescope uses a convex lens to focus the light on the eyepiece. The reflector telescope has a concave lens which means it bends in. It uses mirrors to focus the image that you eventually see. The Schmidt Cassegrain telescope uses an involved system of mirrors to capture the image you want to see. A binocular telescope uses a set of telescopes mounted and synchronized so your view of the sky is 3-D. Beyond the basic types, other terms refer to parts of the telescope or to the science behind how telescopes work. Collimation is a term for how well tuned the telescope is to give you a good clear image of what you are looking at. You want your telescope to have good collimation so you are not getting a false image of the celestial body. Aperture is a fancy word for how big the lens of your telescope is. But it’s an important word because the aperture of the lens is the key to how powerful your telescope is. Magnification has nothing to do with it, its all in the aperture.
293273 comments
TedRoaro
buy bactrim uk
Comment LinkLisaRoaro
advair 500 diskus
Comment LinkYonRoaro
buy provigil online south africa
Comment LinkEvaRoaro
priligy tablets in india price
Comment LinkEvaRoaro
avodart cap 0.5 mg
Comment LinkElwoodrit
fildena 50 online
Comment LinkPaulRoaro
dexamethasone canada
Comment LinkCarlRoaro
clindamycin hcl 300 mg
Comment LinkSamRoaro
fluoxetine 60 dexamethasone rx
Comment LinkJosephZOP
furosemide 40 mg tablet cost generic strattera online benicar for sale canadadrugpharmacy buy generic plavix 75 mg cheap suhagra where can i purchase levitra online sildalis without prescription
Comment Link