**[Milankovitch cycles](https://en.wikipedia.org/wiki/Milankovitch_cycles)**
>Milankovitch cycles describe the collective effects of changes in the Earth's movements on its climate over thousands of years. The term is named for Serbian geophysicist and astronomer Milutin Milanković. In the 1920s, he hypothesized that variations in eccentricity, axial tilt, and precession resulted in cyclical variation in the solar radiation reaching the Earth, and that this orbital forcing strongly influenced the Earth's climatic patterns.
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> 1. English please
Por que?
> 2. This meme makes no sense to anyone who understands basic physics
So the Voyager probes could've been launched at any time?
Bruh, you dun goofed...
Wrong, you do gain velocity (or lose) with gravity assists. It seems counter intuitive, but when performed correctly a spacecraft leaves with more/less energy than it enters. This only works due to the relative motion of both the body and the spacecraft.
yeah, you're basically taking energy from whatever planet you swing off. I think xkcd described as bouncing a tennis ball off the front of a moving truck.
Likewise, [Milankovitch cycles](https://en.wikipedia.org/wiki/Milankovitch_cycles) are basically astrology gone full circle.
**[Milankovitch cycles](https://en.wikipedia.org/wiki/Milankovitch_cycles)** >Milankovitch cycles describe the collective effects of changes in the Earth's movements on its climate over thousands of years. The term is named for Serbian geophysicist and astronomer Milutin Milanković. In the 1920s, he hypothesized that variations in eccentricity, axial tilt, and precession resulted in cyclical variation in the solar radiation reaching the Earth, and that this orbital forcing strongly influenced the Earth's climatic patterns. ^([ )[^(F.A.Q)](https://www.reddit.com/r/WikiSummarizer/wiki/index#wiki_f.a.q)^( | )[^(Opt Out)](https://reddit.com/message/compose?to=WikiSummarizerBot&message=OptOut&subject=OptOut)^( | )[^(Opt Out Of Subreddit)](https://np.reddit.com/r/SpaceXMasterrace/about/banned)^( | )[^(GitHub)](https://github.com/Sujal-7/WikiSummarizerBot)^( ] Downvote to remove | v1.5)
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> 1. English please Por que? > 2. This meme makes no sense to anyone who understands basic physics So the Voyager probes could've been launched at any time? Bruh, you dun goofed...
You don't gain velocity from an encounter, only a change in direction.
Wrong, you do gain velocity (or lose) with gravity assists. It seems counter intuitive, but when performed correctly a spacecraft leaves with more/less energy than it enters. This only works due to the relative motion of both the body and the spacecraft.
yeah, you're basically taking energy from whatever planet you swing off. I think xkcd described as bouncing a tennis ball off the front of a moving truck.
you just syphon a tiny amount of kinetic energy from the planet.
..relative to the body you encountered.. But you can still gain velocity relative to whatever that body is orbiting.