AaS! 171: What are Lagrange Points?
Ask a Spaceman!
Paul M. Sutter
4.8 • 853 Ratings
🗓️ 1 March 2022
⏱️ 31 minutes
🧾️ Download transcript
Summary
Why are Lagrange points so crucial to astronomy? What makes even simple gravity so difficult? How do you “put” something at a Lagrange point? I discuss these questions and more in today’s Ask a Spaceman!
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Thanks to Cathy Rinella for editing.
Music credits:
- Free Music Archive - Paris Ballade by Dana Boulé is licensed under a 3.0 Attribution-NonCommercial License.
- Free Music Archive - L'indovino by Roberto Billi is licensed under a 4.0 Creative Commons Attribution License.
Hosted by Paul M. Sutter, astrophysicist and the one and only Agent to the Stars (http://www.pmsutter.com).
Transcript
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| 0:00.0 | You have worked so hard to make your business into a reality, but achieving your next business |
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| 0:41.4 | General relativity is so hard. |
| 0:59.4 | Einstein this, Einstein, that, 10 coupled nonlinear equations, black holes, gravitational waves, when, when, yeah, we all talk about how hard gravity is, how general relativity, our equations to describe gravity are ferociously difficult to solve. |
| 1:03.7 | They are a real pain in the neck, folks. |
| 1:07.7 | I'm serious. |
| 1:08.7 | They're nasty. |
| 1:09.9 | In fact, they're so nasty that there's only like a dozen or so |
| 1:14.1 | known full solutions. Everything else has to be done on the computer in order to make any progress. |
| 1:20.9 | And it's amazing that we're able to discover things like Blackholz in the first place. I mean, |
| 1:25.9 | for decades after Einstein developed GR, |
| 1:29.7 | basically nobody used it because it was so dang hard. |
| 1:35.0 | And yes, general relativity solutions for gravity are hard. |
| 1:40.6 | But everyone acts like old school Newtonian physics is some kind of cakewalk. |
| 1:46.8 | Like, oh, yeah, yeah, yeah, you don't mess with Einstein and GR. |
... |
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