Title Text:If you ever see the 鈥?dagger symbol with no unmatched footnote, it means the writer is saying the phrase while threatening you with a dagger.
Origin:https://xkcd.com/2708/
https://www.explainxkcd.com/wiki/index.php/2708:_Mystery_Asterisk_Destination
Title Text:I adopted a cat that weighs 12 solar masses. Laser pointers love chasing it.
Origin:https://xkcd.com/2707/
https://www.explainxkcd.com/wiki/index.php/2707:_Astronomy_Numbers
http://xkcd.in/comic?lg=cn&id=2707
空间很大，空间中的东西最终也会变得非常大。因此，天文学中的大多数量都具有巨大的尺度。例如，地球的质量是普通人的 10 23倍，太阳是普通人的 10 5倍，而太阳本身的质量比银河系小10 12倍。这同样适用于速度、距离和时间，它们通… Read more
Title Text:Squaring the circle is really easy with some good clamps.
Origin:https://xkcd.com/2706/
https://www.explainxkcd.com/wiki/index.php/2706:_Bendy
注释：
化圆为方是古希腊尺规作图三大难题之一，即：求一正方形，其面积等于一给定圆的面积。由π为超越数可知，该问题仅用直尺和圆规是无法完成的。但若放宽限制，这一问题可以通过特殊的曲线来完成。如西皮阿斯的割圆曲线，阿基米德的螺线等。
http://xkcd.in/comic?lg=cn&id=2706
几何通常用简单的直线表示二维多边形。在漫画中，线条被比作一个物理对象… Read more
Title Text:Spacetime Soccer, known outside the United States as ‘4D Football’ is a now-defunct sport. Infamous for referee decisions hinging on inconsistent definitions of simultaneity, it is also known for the disappearance of many top players during… [more]
Origin:https://xkcd.com/2705/
https://www.explainxkcd.com/wiki/index.php/2705:_Spacetime_Soccer
Title Text:It’s okay, they can figure out which control positions produce scalding water via a trial-and-error feedback loop with a barely-perceptible 10-second lag.
Origin:https://xkcd.com/2704/
https://www.explainxkcd.com/wiki/index.php/2704:_Faucet
Title Text:CONFLICT OF INTEREST STATEMENT: The authors hope these results are correct because we all want to be cool people who are good at science.
Origin:https://xkcd.com/2703/
https://www.explainxkcd.com/wiki/index.php/2703:_Paper_Title
http://xkcd.in/comic?lg=cn&id=2703
许多（如果不是大多数）科学研究论文提出了一个假设和检验该假设的结果。一种普遍的误解是只有那种研究才应被视为“科学”… Read more
Title Text:BABIES OR LITERATURE BUT NOT BOTH: Baby shoes
Origin:https://xkcd.com/2702/
https://www.explainxkcd.com/wiki/index.php/2702:_What_If_2_Gift_Guide
兰德尔再次宣传他的新书，如果？2，并首先解释可能会欣赏它的接收者类型，基本上是任何从事科学或宇宙中任何事物的人……所以基本上是任何人。
然后他还直接和幽默地间接说明如何为他们获取这本书，后一种方法做出了一个诙谐（但并非完全错误）的假设，即几乎所有文本输入小部件都会导致一些相关的搜索引擎结果。整部漫画也链接到如果？漫画中包含的 xkcd 上的第2页。一如既往，点击图片上的任何地方都会带你到那里（包括实际点击链接）… Read more
Title Text:Squinting at a graph is fine for getting a rough idea of the answer, but if you want to pretend to know it exactly, you need statistics.
Origin:https://xkcd.com/2701/
https://www.explainxkcd.com/wiki/index.php/2701:_Change_in_Slope
漫画是检测数据散点图斜率变化的技巧。这是探索性统计中比较一系列趋势的常见要求——找到斜率变化的截止点可能会揭示有关数据的有价值信息。
漫画比较了两种方法。首先，一个新手方法——通过“做一堆统计”——即应用各种统计工具来分析数据并计算出斜率的数量变化。这会产生两个等式，用于表示… Read more
Title Text:My password is just every Unicode codepoint concatenated into a single UTF-8 string.
Origin:https://xkcd.com/2700/
https://www.explainxkcd.com/wiki/index.php/2700:_Account_Problems
http://xkcd.in/comic?lg=cn&id=2700
Cueball请求Ponytail帮助他，因为他无法登录他的帐户。Ponytail 过去曾尝试解决Cueball 的技术问题，但他的回答却是恐惧。Cueball 承诺“这次是正常问题”，Ponytail 同意… Read more
Title Text:Below the Web, and the Dark Web, a shadowy parallel world of Cybiko users trade messages on the Translucent Neon Plastic Web.
Origin:https://xkcd.com/2699/
https://www.explainxkcd.com/wiki/index.php/2699:_Feature_Comparison
注释：Cybiko无官方译名，这里换成国内读者熟悉的“文曲星”。
http://xkcd.in/comic?lg=cn&id=2699
这部漫画比较了不同的远程通信服务，包括比较知… Read more
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