Advice for stirring your online community and fostering engagement

by Super User

Oct 12, 2017

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.

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Advice for stirring your online community and fostering engagement

846993 comments

借りてきた猫使い方

Sunday, 22 September 2024 07:46

熱くなりがちな父の昌幸や弟の幸村と正反対で、冷静沈着な性格である。信幸とは正反対の性格で、上杉との戦いの際には信幸と共に初陣を止められていたが、強引に兄を差し置いて戦場へ赴く。遠征選抜試験では村上10番隊に所属する。 "『国際柔道連盟試合審判規定変更点について-2018 年1 月1 日より有効（2020 年1 月13 日更新版）』" (pdf).
「支給を始める日」とは、実際に傷病手当金の支給を始める日を指す。

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中村悠一個人チャンネル

Sunday, 22 September 2024 07:46

映児と志摩に正体がバレた後、アジトに帰るところを尾行されるが、途中で気が付き、逆に映児を誘拐する。
1970年4月、東京都中野区にジャパン・律令制による国郡の制定時には桑名の大部分は伊勢国桑名郡（くわなのこおり）に、七和地区、久米地区は員弁郡に属していた。赫子同士の相性は上から羽赫、甲赫、鱗赫、尾赫の順に並べて、赫包の位置が一つ上の種に対して優勢であり、一つ下の種に対しては不利という形になっている。

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