Perhaps the weakest link in the US electrical system
推荐理由
here's a 25 minute mini-documentary of the US electrical system's history and problems
说明
这是2021年由Technology Connections发布的一部讲解,主题归在Power grid, heating & buildings。它讲的是us electrical system safety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:Technology Connections explains weaknesses in the US electrical system, centering on how cord and circuit ratings can mismatch and cause fires. It covers extension cords, power strips and plug history in about 25 minutes.这些读者给出的理由,核心是:HN points to it as a clear explanation of why under-rated extension cords and daisy-chained power strips are dangerous.讲法不绑某一条新闻,过几年仍然可以当材料看。从2021年到2025年,有4位不同的读者在4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us electrical system safety变成能跟着复述的例子。
视频信息
- 频道
- Technology Connections
- 时长
- 25 分 48 秒
- 发布年份
- 2021
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