The LED's Challenge to High Pressure Sodium
推荐理由
Here's a quite good video about the pros and cons of LED vs high/low-pressure sodium street lamps
说明
这是2018年由Technology Connections发布的一部讲解,主题归在Everyday physics & science demos。它讲的是street lighting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:A Technology Connections video weighing LED streetlights against high pressure sodium lamps, covering efficiency, color, cost and light pollution. It is a follow-up to his earlier explanation of why street lights are orange.这些读者给出的理由,核心是:HN commenters point to it in lighting threads for its pros and cons of LED versus sodium lamps, though one calls it almost right.它贴着当时的技术,看的时候要记得那是那个年份的判断。从2018年到2021年,有2位不同的读者在2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street lighting变成能跟着复述的例子。
视频信息
- 频道
- Technology Connections
- 时长
- 21 分 40 秒
- 发布年份
- 2018