[2869] Puzzles

Title Text:Why couldn’t the amulet have been hidden by Aunt Alice, who understands modern key exchange algorithms? Origin:https://xkcd.com/2869/ https://www.explainxkcd.com/wiki/index.php/2869:_Puzzles 谜题 为什么藏项链的人不能是懂现代密钥交换算法的艾丽丝(Alice)阿姨? https://xkcd.in/comic?lg=cn&id=2869 许多儿童书籍,特别是兰德尔那一代所阅读的书籍,包含了故事中的谜题。其中一些在几十年后依然表现不错,比如艾伦·拉斯金为孩子们创作的获奖神秘小说。然而,其他的一些则显得差劲得多… Read more

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[2868] Label the States

Title Text:Even with a blank map, a lot of people can only name 45-50 of the 64 states. Origin:https://xkcd.com/2868/ https://www.explainxkcd.com/wiki/index.php/2868:_Label_the_States 标记美国各州 就算对着手上的一张空白地图,大部分美国人也只能从64州里叫出45到50个州。 https://xkcd.in/comic?lg=cn&id=2868 带有额外州高亮的地图。 真实的美国地图以便比较。 这是美国的空白地图。初看之下,它看起来是正确的,因为所有大型州的轮廓都得到了正确的呈现,但一些州被添加了。例如: 在西海岸,华盛顿州、俄勒冈州和加利福尼亚州都有其… Read more

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[2867] DateTime

Title Text:It’s not just time zones and leap seconds. SI seconds on Earth are slower because of relativity, so there are time standards for space stuff (TCB, TGC) that use faster SI seconds than UTC/Unix time. T2 – T1 =…

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[2866] Snow

Title Text:For someone who has ostensibly outgrown staying up late waiting for Santa, I do spend an awful lot of time refreshing websites to see if packages are here yet. Origin:https://xkcd.com/2866/ https://www.explainxkcd.com/wiki/index.php/2866:_Snow 雪 虽然我早就不会为了等待圣诞老人而熬夜,但依然会没事刷新下快递信息,看看我新买的快递到哪儿了。 https://xkcd.in/comic?lg=cn&id=2866 这部漫画讲述了人们因雪而感到兴奋,这种兴奋可能会引发一些被视为“幼稚”或不那么成熟… Read more

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[2865] The Wrong Stuff

Title Text:The phantom found Edward Everett Hale a century too early; by the time we invented satellites, the specifics of his ‘brick moon’ proposal were dismissed as science fiction. Origin:https://xkcd.com/2865/ https://www.explainxkcd.com/wiki/index.php/2865:_The_Wrong_Stuff 错误的材料 幽灵过早地找到了找到了爱德华·埃弗雷特·希尔,以至于到卫星发明的时候,希尔的“砖月亮”设想只被当成了科幻小说。 注: 1.休斯H-4大力神,别称“云杉之鹅(Spruce Goo… Read more

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[2864] Compact Graphs

Title Text:People may complain about readability, but even with jpeg compression, extracting the data points is usually computationally feasible if there aren’t too many of them. Origin:https://xkcd.com/2864/ https://www.explainxkcd.com/wiki/index.php/2864:_Compact_Graphs 压缩图表 人们可能会抱怨这种图表的可读性,但即使使用jpeg算法对图表进行压缩,在数据量不大的情况下,对数据进行提取在计算上也是可行的。 https://xkcd.in/comic?lg=cn&… Read more

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[2863] Space Typography

Title Text:And over heeee[…]eeeere (i)s Saturn. Origin:https://xkcd.com/2863/ https://www.explainxkcd.com/wiki/index.php/2863:_Space_Typography 太空排版 那边[……]是土星。 https://xkcd.in/comic?lg=cn&id=2863 这是Randall的另一个小提示,这次是一个空间提示,连续的第一个,共两个,第二个是2864:紧凑图表和设计提示。 Randall创造了一个句子,其特性是,当用Times New Roman字体打印时,“i”字母与第一个字母之间的距离与太阳系内五颗行星轨道的半径成比例。这是句子中唯一带有点的… Read more

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[2862] Typical Seating Chart

Title Text:Now that airlines have started adding wheel locks to their drink carts, less than half of flights have one accidentally fall out through the hole. Origin:https://xkcd.com/2862/ https://www.explainxkcd.com/wiki/index.php/2862:_Typical_Seating_Chart 经典舱位表 现在,航空公司已经开始在饮料车上安装轮锁,只有不到一半的航班会发生意外从垃圾孔中掉出的事故。 https://xkcd.in/comic?lg=cn&id=2862 这部漫画展示了一架182座飞机(及其战斗机护航)的座位图,… Read more

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[2861] X Value

Title Text:The value of n is still unknown, but new results constrain it to fall between 8 and 10^500, ruling out popular ‘n=1’ and ‘n=2’ theories. Origin:https://xkcd.com/2861/ https://www.explainxkcd.com/wiki/index.php/2861:_X_Value X的值 n值是多少现在仍不可知,不过新的结果将范围缩小到了8到10^500,可以排除之前流行的“n=1”或者“n=2”这两种理论。 https://xkcd.in/comic?lg=cn&id=2861 在代数中,变量是任何用于表示尚未… Read more

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[2860] Decay Modes

Title Text:Unlike an Iron Age collapse, a Bronze Age collapse releases energy, since copper and tin are past the iron peak on the curve of binding energy. Origin:https://xkcd.com/2860/ https://www.explainxkcd.com/wiki/index.php/2860:_Decay_Modes 衰变模式 与铁器时代的崩溃不同,青铜时代的崩溃会释放能量,因为在结合能曲线上,铜和锡在峰值处的铁元素后面。 https://xkcd.in/comic?lg=cn&id=2860 衰变模式是指不稳定原子核转变为更稳定核的不同方式,通常通过发射粒子或辐射来实现。衰变… Read more

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