FlexiLingo
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE Uploaded 13-06-18 You can get a free trial of The Great Courses Plus at http://ow.ly/c7tI30hIva3 We’ve established by now that black holes are weird. The result of absolute gravitational collapse of a massive body: a point of hypothetical infinite density surrounded by an event horizon. At that horizon time is frozen and the fabric of space itself cascades inwards at the speed of light. Nothing can trave...
打开播放器：完整文字稿，每个单词都可点击，附翻译和单词卡。
这一集适合你吗？
C1 · 高级
语速快，信息密集，习语多
- 92% 的单词在 B1 或更简单的水平。
- 每分钟 138 词：自然语速。
- 整集共有 119 个较难的单词（B2 及以上）。
试一试：点任意单词
来自本集开头的真实句子，每个单词都标出了难度级别。
We've established by now that black holes are weird.
,
infinite density surrounded by an event horizon.
点一个单词，用你的语言查看释义。
这些单词你认识吗？
本集中 8 个较难的单词。点一个查看释义，然后标记一下。
标记几个单词，我们会告诉你这一集是否适合你的水平。
这一集适合你吗？
C1 · 高级
语速快，信息密集，习语多
- 92% 的单词在 B1 或更简单的水平。
- 每分钟 138 词：自然语速。
- 整集共有 119 个较难的单词（B2 及以上）。
文字稿
本集开头部分。完整文字稿在播放器中。
较难的单词（B2+）
Thanks to The Great Courses Plus for supporting PBS Digital Studios. I got a physics joke for you. A proton, an electron, and an anti-nutrino walk into a black hole. That's it. We've established by now that black holes are weird.
The result of absolute gravitational collapse of a massive body, a point of hypothetical infinite density surrounded by an event horizon. At that horizon, time is frozen and the fabric of space itself cascades inwards at the speed of light.
Nothing can travel faster than light and so nothing can escape from below the event horizon. Not matter, not light, not even information. These ideas are pretty mind-blowing, but as crazy as black holes are, they're also so kind of simple.
以上是开头部分。 本集其余部分（16 分钟）在播放器中：每个单词都可点击，附翻译、生词收藏和单词卡。
在播放器中继续由音频自动生成，可能存在错误。 音频版权归其发布者所有，并从其订阅源播放。版权所有者可申请删除 — 版权与删除政策