PickVidsIf these pumps ever stop, part of Germany floods.
推荐理由
covered well in Tom Scott videos
说明
这是2020年由Tom Scott发布的一部讲解，主题归在Civil engineering & construction。它讲的是ruhr valley flood control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：Tom Scott explains how decades of deep coal mining sank parts of Germany's Ruhr Valley and changed its drainage. Pumps run by Emschergenossenschaft must now work permanently to keep towns and cities from flooding.这些读者给出的理由，核心是：HN uses it as a well-known example of infrastructure that must run forever to keep an area habitable.讲法不绑某一条新闻，过几年仍然可以当材料看。从2021年到2026年，有1位不同的读者在1个不同月份把它推荐出来，其中明确叫别人去看的有0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ruhr valley flood control变成能跟着复述的例子。
视频信息
- 频道
- Tom Scott
- 时长
- 4 分 19 秒
- 发布年份
- 2020
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