昨天我散步时,听着Apple Music上的70年代热门歌曲电台,突然响起了《Don't Leave Me This Way》。我从口袋里掏出手机,边听边看短信,结果很惊讶Music App告诉我关于这首歌的内容。 我很确定乔治·本森从未翻唱过《Don't Leave Me This Way》,但即使翻唱了,那也不是我听的版本。这是大家都熟悉的Thelma Houston版本,她那令人难以置信的嗓...
A few days ago, I posted this image on Mastodon: The code I ran to get this two-month calendar on my Desktop was bash: if [ $(date +"%-d") -gt 15 ]; then cal -A 1 else cal -B 1 fi |\ terminal-widget -...
Dr. Drang 演示如何用卡氏第二定理计算简支梁中心挠度。针对无集中力点的问题,引入虚设载荷 P,求应变能对 P 的偏导后令 P 为零。推导过程详尽,包含弯矩表达式、积分及最终结果 5wL^4/384EI。作者坦言四十五年未用过卡氏第一定理,颇具个人色彩。适合结构力学爱好者及工程师参考能量法解题技巧。
This week’s episode of Upgrade (which I listened to on a longish drive yesterday) has a preview of Jason Snell and Myke Hurley’s upcoming Designed in California podcast. No, not the “Road to the Apple...
[Equations in this post may not look right (or appear at all) in your RSS reader. Go to the original article to see them rendered properly.] At the end of yesterday’s post about the combinatorics of t...