PickVidsIBM Selectric Typewriter & its digital to analogue converter
推荐理由
I highly recommend watching
强烈推荐voxadam · 原文
说明
这是2010年由engineerguy发布的一部讲解，主题归在Mechanical & precision engineering。它讲的是mechanical engineering这一支里的具体问题，而不是把整个领域扫一遍。适合按兴趣直接看、不打算先补课的人。内容上可以概括成：Bill Hammack of engineerguy uses slow motion video to show how the IBM Selectric typewriter works. He focuses on its fully mechanical digital-to-analog converter, which turns key presses into rotation of the type ball.这些读者给出的理由，核心是：HN commenters recommend it whenever the Selectric comes up, as a short, excellent explanation of its internals.讲法不绑某一条新闻，过几年仍然可以当材料看。从2016年到2025年，有4位不同的读者在5个不同月份把它推荐出来，其中明确叫别人去看的有1次。适合用一集把一个概念补上的人。抓住它用的那个图像或类比，比背公式重要。如果已经会了基本定义，就把注意力放在它怎么把mechanical engineering变成能跟着复述的例子。
视频信息
- 频道
- engineerguy
- 时长
- 3 分 5 秒
- 发布年份
- 2010
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