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// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

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Frontend Development

Attention: the list was moved to

https://github.com/dypsilon/frontend-dev-bookmarks

This page is not maintained anymore, please update your bookmarks.

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emptymalei

首先，我们这里探测引力波的方法是用的微波背景辐射，新闻中说了，大家是在找 B mode，那么自然的就有那么几个问题：

1. 什么是微波背景辐射？
2. 什么是 B mode？
3. 什么是引力波？
4. 为什么可以通过 B mode 来探测引力波？

什么是背景辐射

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Digital Toolchain for Book Authors

Text markup and structure

• So many light markup formats to consider
  • Markdown
  • Textile
  • reStructuredText
  • Asciidoc
  • Most compile to HTML, PDF, DocBook
• Get handy with PanDoc (but man, the haskell bootstrapping is a pain)

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➜  ~  brew install R
==> Using Homebrew-provided fortran compiler.
This may be changed by setting the FC environment variable.
==> Downloading http://cran.rstudio.com/src/base/R-3/R-3.1.0.tar.gz
Already downloaded: /Library/Caches/Homebrew/r-3.1.0.tar.gz
Error: undefined method `[]' for Formula:Class
Please report this bug:
    https://github.com/Homebrew/homebrew/wiki/troubleshooting
/usr/local/Library/Formula/r.rb:36:in `install'
/usr/local/Library/Homebrew/build.rb:165:in `install'

emptymalei

（拖了好久，终于有时间回答了。）

问题：http://www.guokr.com/question/558719/

惯性质量为什么和引力质量相等？

没道理啊……电场中Eq=ma可以理解；而引力场中mg=ma，为啥两个m相等？ 如果场和引力场比较，也就是说。。。q和m是类似的参数，但是为啥引力场中这个参量等于质量呢？

不太清楚……

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推进技术

星际移民中心所使用的以及在研究中的相关的推进技术。

##目录

[toc]

简要介绍

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What

Roll your own iPython Notebook server with Amazon Web Services (EC2) using their Free Tier.

What are we using? What do you need?

• An active AWS account. First time sign-ups are eligible for the free tier for a year
• One Micro Tier EC2 Instance
• With AWS we will use the stock Ubuntu Server AMI and customize it.
• Anaconda for Python.
• Coffee/Beer/Time

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<!-- 随机名人名言代码开始 -->
<h3 style="margin-top:10px;">
  <button id="click-me">Click Me!</button>
  <left id="people-quote">
    <!-- 可以把这里的 jquery 依赖放在本地 -->
    <script src="https://code.jquery.com/jquery-2.1.1.min.js"></script>
    <script type="text/javascript">
      var butong_net = new Array(
        '物理教授走过校园，遇到数学教授。物理教授在进行一项实验，他总结出一个经验方程，似乎与实验数据吻合，他请数学教授看一看这个方程。<br>一周后他们碰头，数学教授说这个方程不成立。可那时物理教授已经用他的方程预言出进一步的实验结果，而且效果颇佳，所以他请数学教授再审查一下这个方程。 <br> 又是一周过去，他们再次碰头。数学教授告诉物理教授说这个方程的确成立，但仅仅对于正实数的简单情形成立。',