Why No One Has Measured The Speed Of Light
推荐理由
I found the video very compelling even as a thought experiment.
强烈推荐aemreunal · 原文
说明
这是2020年由Veritasium发布的一部讲解,主题归在Fundamental physics。它讲的是one-way speed of light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:Veritasium explains why the one-way speed of light has never been measured, only the round-trip speed, since measuring it requires synchronized clocks that assume the answer. It explores the implications for relativity.这些读者给出的理由,核心是:Used as the standard reference in threads about light speed, clock synchronization and untestable assumptions in physics.讲法不绑某一条新闻,过几年仍然可以当材料看。从2020年到2024年,有6位不同的读者在7个不同月份把它推荐出来,其中明确叫别人去看的有3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one-way speed of light变成能跟着复述的例子。
视频信息
- 频道
- Veritasium
- 时长
- 19 分 5 秒
- 发布年份
- 2020
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