Title Text:Of course you get an ice cream cone for the swimmer too! You’re not a monster. Origin:https://xkcd.com/2821/ https://www.explainxkcd.com/wiki/index.php/2821:_Path_Minimization 路径最优化 当然你会给水里的人也带个冰淇淋！你又不是什么魔鬼。 https://xkcd.in/comic?lg=cn&id=2821 在这个漫画中，站在岸边的Cueball似乎正在观察一个可能（但并不明显）处于困境中的游泳者。漫画展示了五条可以到达游泳者的潜在路径，每条路径都有不同的理由使其可行，表现出可以选择的不同最佳策略。 第一条路径是从Cue… Read more
Title Text:An apple fell on Isaac Newton’s head and gave him the idea that the moon might be a tasty apple, though this turned out not to be true–the Apollo program eventually determined that it was just a desolate and…
Title Text:I pronounce the ‘u’ in ‘pronunciation’ like in ‘putting’ but the ‘ou’ in ‘pronounce’ like in ‘wound’. Origin:https://xkcd.com/2819/ https://www.explainxkcd.com/wiki/index.php/2819:_Pronunciation 发音 我读pronunciation感觉里面的u像是putting里的，但读pronounce的时候感觉ou像是wound里的。 https://xkcd.in/comic?lg=cn&a… Read more
Title Text:A circle with an A in it means that the circuit has committed a sin and has been marked as punishment. Origin:https://xkcd.com/2818/ https://www.explainxkcd.com/wiki/index.php/2818:_Circuit_Symbols 电路符号 如果电路中有符号A，表示该电路犯了罪，标记A作为惩罚。 https://xkcd.in/comic?lg=cn&id=2818 这部漫画包含了几个用于电路图的符号。每个符号都用一个更大物体的名称标记，这个物体是符号看起来像的绘图，而不是它实际上代表的电气组件。Randall之前在漫画《730：电路图》中描绘了美国标准… Read more
Title Text:They tried to report me to the authorities, but because I had the device they couldn’t charge me. Origin:https://xkcd.com/2817/ https://www.explainxkcd.com/wiki/index.php/2817:_Electron_Holes 电子空穴 有人试图报告给当局，不过因为这装备，他们根本指控不了我。 注：空穴（Electron hole）又称电洞、电子孔、正孔，在固体物理学中指共价键上流失一个电子，最后在共价键上留下空位的现象。 https://xkcd.in/comic?lg=cn&id=2817 电子空穴是指缺乏电子的准粒子。这些在半导体的理论和设计… Read more
Title Text:The best place to be for a hug eclipse is a scenic natural area with good views and few clouds. The worst place to be is the lunar surface. Origin:https://xkcd.com/2816/ https://www.explainxkcd.com/wiki/index.php/2816:_Types_of_Solar_Eclipse 日食类型 观看抱抱日食的最佳地点是视野开阔、云层稀少、风景优美的自然区域。最糟地点是月球表面。 https://xkcd.in/comic?lg=cn&id=2816 有各种不同类型的日食。这部漫画声称展示并命名了它们中的一些，最初相当真实准确，然后转向传… Read more
Title Text:I’m glad modern car washes use synthetic baleen, instead of harvesting it from whales like 1800s car washes did. Origin:https://xkcd.com/2815/ https://www.explainxkcd.com/wiki/index.php/2815:_Car_Wash 洗车 我很高兴现代洗车使用的是合成鲸须，而不是像19世纪那样从鲸鱼上采集的。 https://xkcd.in/comic?lg=cn&id=2815 马尾辫和光头正在讨论洗车。在兰德尔的世界中，这通常意味着一个自动化设施，通过将汽车放入大型机器中（或将机器移到静止的汽车上）来清洗汽车，同时乘客仍然坐在车内… Read more
Title Text:When speaking out loud, you can can [sic] call it the ‘Perseids meatier shower’ and no one will ever know. (If you do get caught somehow, just tell them to Google the ‘Kentucky meat shower’ and that will distract…
Title Text:FYI: The ‘drop, cover, and hold on’ advice only applies to earthquakes. If you encounter a mountain lion, you should absolutely not drop to the ground, crawl under it, and hold on to one of its legs. Origin:https://xkcd.com/2813/ https://www.explainxkcd.com/wiki/index.php/2813:_What_To_Do…
Title Text:Getting the utility people to run transmission lines to Earth is expensive, but it will pay for itself in no time. Origin:https://xkcd.com/2812/ https://www.explainxkcd.com/wiki/index.php/2812:_Solar_Panel_Placement 放置太阳能电池板 让相关工作人员在地球和太阳表面的电池板之间拉电线虽然很费钱，但是相信用不了多久就能回本的。 https://xkcd.in/comic?lg=cn&id=2812 这是Randall的另一个小贴士，这次是关于太阳能的建议。 太阳能电池板通常会根据照射在其上的阳光强度产生电力。… Read more
