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Could you make an umbrella out of lasers?https://www.youtube.com/watch?v=zgBTwtg7H8E这个视频探讨了用激光伞拦截雨水的概念。它计算了蒸发一升水所需的能量,结果显示一场大雨每升水需要大约2.6MJ。适应光学技术提议针对每滴雨水,这就需要一平方米约每秒500次脉冲,这
What If?的创作者· ··· 兰道尔·门罗作者 作者简介· ··· Randall Munroe is the author of the popular webcomic xkcd and the science question-and-answer blog What If. Randall was born in Easton, Pennsylvania and grew up outside Richmond, Virginia. After studying physics at Christopher ...
[转]What If..[What if]第4期——1摩尔的鼹鼠原作: http://what-if.xkcd.com/4/翻译:Ent如果收集一摩尔的鼹鼠,全部放在一个地方,会发生什么呢(#英文里摩尔和鼹鼠都是mole这个
来源|what-if.xkcd.com 译者|猪的米提问:如果我以每秒1英尺一直往下挖地会发生什么?我会怎么死?—— Jack Kaunis 回答:这个问题是第64期问题的相反版本,那个问题问的是如果以每秒1英尺的速度匀速上升会怎么死。相比之下,以同样的速度向下挖死得更快。(...
在工作之余,他喜欢画火柴人漫画。当他将这些漫画发到网上时,他收获了第一批读者。或许是发现在网上发布漫画比造机器人更有趣,他建立了xkcd.com网站,离开了NASA,成为一名全职网络漫画家。 在这个网站上,网友们向他提出五花八门的荒诞问题,而他总是试图用科学知识解答。
What If|< < Prev Random Next > >| |< < Prev Random Next > >| Permanent link to this comic: https://xkcd.com/17/ Image URL (for hotlinking/embedding): https://imgs.xkcd.com/comics/what_if.jpg RSS Feed - Atom Feed - Email Comics I enjoy: Three Word Phrase, SMBC, Dinosaur...
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The millions of people around the world who read and loved What If? still have questions, and those questions are getting stranger. Thank goodness xkcd creator Randall Munroe is here to help. Planning to ride a fire pole from the moon back to Earth? The hardest part is sticking the landing...
A special 10th anniversary edition of the million-copy bestseller What If? from the creator of the wildly popular webcomic xkcd—revised and annotated with brand-new illustrations and answers to important questions you never thought to ask. Fans of xkcd ask Munroe a lot of strange questions: Wh...