Month: June 2013

[1231] Habitable Zone

Title Text:They have a telescope pointed RIGHT AT US!<

Origin:https://xkcd.com/1231/

https://www.explainxkcd.com/wiki/index.php/1231:_Habitable_Zone

適居帶

https://sites.google.com/site/bbraintranslator/home/xkcd/1231

在寻找太阳系外行星时,这个容易上当的天文学家非常兴奋,因为他相信他已经在恒星的可居住区域找到了一颗行星,海洋和可见的天气。从这些观察中,他已经确定它很可能有生命,这将是一个重大的开创性发现。

然而,标题解释说,有人用镜子作恶作剧来愚弄天文学家,所以他实际上是在看地球的反射。

标题文字说明天文学… Read more

[1230] Polar/Cartesian

Title Text:Protip: Any two-axis graph can be re-labeled ‘coordinates of the ants crawling across my screen as a function of time’.<

Origin:https://xkcd.com/1230/

https://www.explainxkcd.com/wiki/index.php/1230:_Polar/Cartesian

https://app-xkcd-cn.appspot.com/

这部漫画讲述了阅读极坐标图和更常见的笛卡尔坐标图之间的区别。

该图表旨在显示观众心中的确定性,它是一个顺时针极坐标图,作为时间的函数。

如果被视为笛卡尔图,则y(垂直)轴表示“确定性”,而x(水平)轴表… Read more

[what if]第51期:自由落体

提问:

在地球上的哪个地方跳下去能让你体验到时间最久的自由落体?如果你穿着翼装跳下去会有什么影响?

—— Dhash Shrivathsa

回答:

如果仅仅是看垂直落差的话,加拿大的托尔峰可是算是老大,它的样子大概是这样的:

wpid-25185022_16457-2013-08-28-16-55.gif

为了让跳崖这事儿不那么惊悚,我们不妨在山脚下挖个坑,里面填满了松软的东西,比如棉花糖,这样你就不至于摔死了。(说不定还是会摔死……嗯……)

wpid-25185248_33874-2013-08-28-16-55.gif

如果一个人下落时四肢伸展,那么最终坠落速度会在55米/秒上下。要达到这个速度至少要下落几百米的距离,因而要花上26秒多一点的时间你才能坠到山脚下。

26秒多一点是个什么概念呢?

Read more

[1229] Screensaver

Title Text:I’m entering my 24th year of spending eight hours a day firing the Duck Hunt gun at the flying toasters. I’m sure I’ll hit one soon.<

Origin:https://xkcd.com/1229/

https://www.explainxkcd.com/wiki/index.php/1229:_Screensaver

螢幕保護程式

這是我第二十四年每晚花八小時用獵鴨的光束槍去打那些會飛的烤麵包機,總有一天我會打下一台。

https://xkcd.tw/1229

这部漫画以“Starfield”屏幕保护程序为特色,这是20世纪90年代流行的Windows屏幕保护程序… Read more

[1228] Prometheus

Title Text:’I’m here to return what Prometheus stole.’ would be a good thing to say if you were a fighter pilot in a Michael Bay movie where for some reason the world’s militaries had to team up to defeat every god from human mythology, and you’d just broken through the perimeter and gotten a missile lock on Mount Olympus.<

Origin:https://xkcd.com/1228/

https://www.explainxkRead more

[1227] The Pace of Modern Life

Title Text:’Unfortunately, the notion of marriage which prevails … at the present time … regards the institution as simply a convenient arrangement or formal contract … This disregard of the sanctity of marriage and contempt for its restrictions is one of the most alarming tendencies of the present age.’ –John Harvey Kellogg, Ladies’ guide in health and disease (1… Read more

[what if]第50期:极限划船

提问:

在一湾水银河里划船会是什么样子的?溴河呢?液态镓河呢?液态钨河呢?液态氮河呢?液态氦河呢?(敢不敢再奇怪一点……)

—— Nicholas Aron

回答:

你一口气问得太多了,让我一个一个来回答……

溴和水银是已知物质中仅有的在室温下是液态的单质。

在水银河里划船是有可能的……

水银的密度极大,甚至铁质的轴承都能在里面浮起来。因而你所坐的船只会在水银表面弄出浅浅的凹痕,而且你得把全身的重量都压在船桨上才能勉强让它插入水银液面以下一点点的距离。

归根到底,在水银河里划船是件费力的事情,而且你划不快,不过你确实可以划上一段距离。

哦对了

Read more

[1226] Balloon Internet

Title Text:I run a business selling rural internet access. My infrastructure consists of a bunch of Verizon wifi hotspots that I sign up for and then cancel at the end of the 14-day return period.<

Origin:https://xkcd.com/1226/

https://www.explainxkcd.com/wiki/index.php/1226:_Balloon_Internet

热气球上网服务

https://www.douban.com/photos/photo/2017812588/

这部漫画引用了谷歌新推出的Project Loon,这是一种气球驱动的互联… Read more

[1225] Ice Sheets

Title Text:Data adapted from ‘The Laurentide and Innuitian ice sheets during the Last Glacial Maximum’ by A.S. Dyke et. al., which was way better than the sequels ‘The Laurentide and Innuitian ice sheets during the Last Glacial Maximum: The Meltdown’ and ‘The Laurentide and Innuitian ice sheets during the Last Glacial Maximum: Continental Drift’.<

Origin:https://Read more

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