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

1075672 comments

makutizanzibar.com

Monday, 23 September 2024 06:37

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世界で

Monday, 23 September 2024 06:37

政宗からゴボウをプレゼントされたことがある。政宗は戦場で兜につけるほど好きだろうと言っていたがゴボウではなくムカデの前立であり（常に前に進むという習性にあやかろうとした）、そのことを政宗につっこんだ。政宗の母親。政宗に構って貰いたいようで、彼女も様々な眼帯を製作しているが、政宗の方は全く興味を持っていないのかないがしろにしており、彼女をガンターと認めていない。妖怪の肝の方が効果がありそうだと鬼太郎を狙うが、最後は人食い島の心臓の弁に押し潰され死亡する。多くの国際ランキングで上位に格付けされており、最も「テクノロジー対応」国家（WEF）、国際会議のトップ都市（UIA）、世界で最もスマートな都市である「投資の可能性が最も高い」都市（BERI）、世界で最も安全な国、世界で最も競争力のある経済、3番目に腐敗の少ない国、3番目に大きい外国為替市場、3番目に大きい金融センター、3番目に大きい石油精製貿易センター、5番目に革新的な国、2番目に混雑するコンテナ港湾。

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