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A resource for reaching our stepping stone to the Solar System.
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Spacepedia - a general space wiki
Marspedia - a Mars wiki
Exodictionary - a space dictionary

Lunarpedia's mission is to cover everything we will need to know how to do on Luna (the Earth's moon) to set up self-sustaining bases and colonies, as well as related efforts, designs, and business models that may eventually lead there. Construction is always ongoing and you can help!

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This device is the central feature of a spacecraft carrier that receives spacecraft into orbit as an aircraft carrier receives aircraft that land on its deck. It works by having a long slotted aluminum tube in orbit and having the shuttle vehicle that is launched to orbital altitude enter this slot while the tube is moving by at orbital speed. The shuttle only needs to reach orbital altitude to enter the eddy current brake tube. That can be 10 kilometers on Luna at the perilune, an altitude that can be reached with 188 meters per second mission delta v, including gravity loss, a few seconds maneuvering fuel, and a small safety margin. Magnetic flux from permanent magnets deployed by the shuttle is directed at the walls of the tube causing a repulsive force and a retarding force.^[1]^[2] By reducing the speed of the shuttle relative to the orbiting aluminum tube, the shuttle is brought up to near orbital speed. Since eddy current braking loses effectiveness at low relative speeds, friction braking is used to give the shuttle the last 18 meters per second to reach orbital speed and match velocity with the aluminum tube. During all the time that the relative speed of the shuttle and the aluminum tube is greater than 18 meters per second, there is no contact between the material of the shuttle and the material of the aluminum tube. ...(read more)

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Find an identified needed article with a red link, click here for a list of missing but linked to articles, or create your article by typing in the topic name in the URL (such as http://www.marspedia.org/index.php?title=articlename.)

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关于表演课 Acting Lessons的评论(6):2021-5-17 · 下载豆瓣客户端豆瓣 6.0 全新发布 × 豆瓣扫码直接下载 iPhone · Android 豆瓣读书 ... 笑死我了，哪位老哥创的词条啊，五星给欧美宅男之光Dr PinkCake（AKA. VN刀片王），喜欢他作品的宅男伔可众上Patreon或Steam支持一下这位大佬，这年头这么良心的 ...

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You can download a very useful one page Wiki Reference Card as a PDF.

Or a less comprehensive, but much nicer looking, single page Wikipedia Cheatsheet, also as a PDF.

Or an easy-to-dig page of wiki examples is at Wikitext Examples

电影级调色预设合集PR/AE-图像处理文档类资源-CSDN下载:2021-5-29 · 电影级调色预设合集支持最新AdobeCC2021的AE众及PR。更多下载资源、学习资料请访问CSDN下载频道. 调色AE.PR_Looks 2.0 中文版(64位 2021-05-17 超过64个新的和更新的预设共100多个，所有的灵感来自真实世界的项目和问题，并在商业项目测试添加视频，交互式单帧预览输出预览，排名第一的时装展示功能要求 ...

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When you add comments to User_talk pages, please sign using <BR/>-- ~~~~, this automatically adds your signature and a time and date stamp in UTC like so:
-- MikeD 09:15, 18 May 2007 (UTC)

Anonymous users (those not logged in) should also sign with some sort of ID, like for instance <BR/>-- JoeBloggs ~~~~~ which would result in something like the following:
-- JoeBloggs 09:15, 18 May 2007 (UTC)