Superluminal Time Travel + Time Warp Challenge Answer
推荐理由
One video with no maths required.
说明
这是2017年由PBS Space Time发布的一部讲解,主题归在Fundamental physics。它讲的是faster-than-light travel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 PBS Space Time episode explaining why faster-than-light travel is equivalent to travelling back in time, using relativity and Minkowski diagrams for different observers.这些读者给出的理由,核心是:HN points to it in warp drive discussions as a math-free explanation of why superluminal travel causes causality problems.讲法不绑某一条新闻,过几年仍然可以当材料看。从2018年到2022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faster-than-light travel变成能跟着复述的例子。
视频信息
- 频道
- PBS Space Time
- 时长
- 11 分 48 秒
- 发布年份
- 2017
同主题更多
- I bought 1000 meters of wire to settle a physics debate
- The Speed of Light is NOT About Light
- Why No One Has Measured The Speed Of Light
- Richard Feynman - The.Character of Physical Law - Part 1 The Law of Gravitation (full version)
- HD Feynman: FUN TO IMAGINE complete (with optional Chinese subtitles)
- A new way to visualize General Relativity