this post was submitted on 03 Oct 2023
774 points (99.2% liked)
Technology
58485 readers
3963 users here now
This is a most excellent place for technology news and articles.
Our Rules
- Follow the lemmy.world rules.
- Only tech related content.
- Be excellent to each another!
- Mod approved content bots can post up to 10 articles per day.
- Threads asking for personal tech support may be deleted.
- Politics threads may be removed.
- No memes allowed as posts, OK to post as comments.
- Only approved bots from the list below, to ask if your bot can be added please contact us.
- Check for duplicates before posting, duplicates may be removed
Approved Bots
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
I don't know nt get it. They only moved it half the distance that they needed, because it ran out of fuel. It's a relatively short distance and I'd expect space movement to keep moving, after I initiated, as there is no friction. Why did it stop moving once they were headed away?
Explaining orbital mechanics is hard because people aren't used to it, but I'll try. I'd recommend playing Kerbal Space Program if you really want to understand it though.
Orbiting is just moving horizontally as fast as gravity pulls you down, so you never fall down. If you speed the horizontal part up, you'll move further away on the opposite side of your orbit because you were moving sideways faster than you were falling down. To stay at that altitude you need to be moving faster though, so you'll fall back in if you don't accelerate here again. You don't just keep going further away, because higher orbits require faster and faster speeds.
Let me know if that helps, but this probably can't be understood by text very easily. You probably at least need pictures, if not video, but actually interacting with it is the best way. Kerbal Space Program is famous for helping people wrap their mind around orbital mechanics.
I'll second KSP. I learned a ton from that game.
I got it one time when someone explained orbiting as "falling faster than gravity pulling you towards the ground".
My emphasis.
The satellite is orbiting Earth and to move further away from something you're orbiting, you need to raise your orbit. This basically means you need to go faster in the direction of orbit in order to move further from what you're orbiting.