Anti-Gravity (Narration Only)
Science & Futurism with Isaac Arthur
Isaac Arthur
4.9 • 781 Ratings
🗓️ 7 April 2019
⏱️ 16 minutes
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| 0:00.0 | Hello, SFIA audio listeners. In this month's Nebula exclusive, big alien theory, |
| 0:05.2 | we're asking the reason alien civilizations might be rare is because most aliens are huge. |
| 0:10.5 | To hear it and every episode early and ad-free, plus hours of bonus content, |
| 0:15.1 | check out go.nebola.tv slash Isaac Arthur and use my code, Isaac Arthur. |
| 0:20.1 | This episode is sponsored by CuriosityStream. |
| 0:24.1 | Gravity is the weakest of the fundamental forces in nature, but when it comes to climbing up |
| 0:29.7 | to humanity's future, it really draws us down. |
| 0:35.8 | A few weeks back we did an episode on Clark Tech, hypothetical technologies so advanced they |
| 0:42.1 | are indistinguishable from magic. |
| 0:44.9 | There we defined it as technologies that either at least had a basis in some plausible scientific |
| 0:50.2 | theory or were very conceptually straightforward, like time travel, faster and |
| 0:55.1 | like communication, or anti-gravity. |
| 0:58.2 | That was a survey episode covering many of these technologies quickly, and we did a poll on |
| 1:03.1 | the SFIA community tab to see which one we'd look at in detail first, and anti-gravity |
| 1:09.1 | one, hands down. Fortunately, it's a technology that requires very little introduction, as both anti-gravity |
| 1:16.6 | and artificial gravity are staples of science fiction, and today we'll look at both some |
| 1:21.6 | of the science that might allow either version or a close approximation of them, as well as some less obvious but powerful |
| 1:29.7 | applications of gravity control like blowing up planets. |
| 1:34.5 | Gravity manipulation is an interesting one from a scientific perspective, because while |
| 1:38.9 | we really have little on the table to allow it, it's also a very poorly understood force, which is ironic |
| 1:45.6 | since it was the first of the four fundamental forces in nature we humans learned about, |
| 1:51.1 | even before Isaac Newton and his fabled apple falling on the head experience. |
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