this post was submitted on 17 Mar 2024
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The Busy Center of the Lagoon Nebula


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[–] [email protected] 132 points 7 months ago (2 children)

Looks like everything I've ever done in Kerbal

[–] [email protected] 20 points 7 months ago (3 children)

You actually make it to space? I usually just end up creating shitty versions of the V1 with passengers.

[–] [email protected] 7 points 7 months ago (2 children)

The Kerbal solution is more rockets.

The actual solution is probably some control surfaces for the atmosphere, reaction wheels for space (both for steering) and upscaling to the biggest rocket available with no more than 2 largest size fuel tanks for each rocket. SRBs are your friend until they aren't. Stabilizers save more fuel than imagined.

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[–] [email protected] 4 points 7 months ago

Oh yeah, I've got a probe around every planet and a kerbstronaut that left the solar system. But no one comes home

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[–] [email protected] 116 points 7 months ago (2 children)

Thanks to this stabilization I've come to the expert conclusion that that shit spun yo

[–] [email protected] 9 points 7 months ago (2 children)

Wow. You must be some kind of rocket scientist!

[–] [email protected] 10 points 7 months ago (3 children)

I can't even tell you how many times I've watched TNG.

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[–] [email protected] 4 points 7 months ago* (last edited 7 months ago) (3 children)

I only re posted a repost from TikTok

[–] [email protected] 7 points 7 months ago

Thanks for posting, interesting stuff.

[–] [email protected] 4 points 7 months ago (1 children)

Lemmy has declared you a sinner for this.

[–] [email protected] 7 points 7 months ago (3 children)

I hesitated a lot. But in the end I haven’t seen this anywhere else and it really showed what was happening. In the end I decided to post it.

[–] [email protected] 5 points 7 months ago (1 children)

It is a cool video but you used the words "repost" and "tik tok" and that triggered automated downvotes lol

[–] [email protected] 6 points 7 months ago (1 children)

Oh I know. It’s my little self immolation move.

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[–] [email protected] 39 points 7 months ago (2 children)

Missed opportunity to put it to the docking song from Interstellar

[–] [email protected] 9 points 7 months ago (1 children)
[–] [email protected] 5 points 7 months ago (1 children)

The song is called No Time For Caution by Hans Zimmer. Because when Hans isn't falling asleep on his organ, he actually makes so damn good music.

[–] [email protected] 3 points 7 months ago

I know. I was quoting Interstellar :)

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[–] [email protected] 35 points 7 months ago* (last edited 7 months ago) (2 children)

This made my dizzy and that doesn't help with the fact that I discovered you can get nausea and headaches from drinking matcha on an empty stomach an hour ago

[–] [email protected] 16 points 7 months ago

I discovered you can get nausea and headaches from drinking matcja on an empty stomach an hour ago

Matcja can catcha.

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[–] [email protected] 23 points 7 months ago (1 children)

Ticktock watermark πŸ’€πŸ’€ but this is a really cool video

[–] [email protected] 12 points 7 months ago

Yeah. I hesitated posting because of TikTok. But I felt the video explained things in a way I had not seen anywhere else and it was worth it.

[–] [email protected] 22 points 7 months ago* (last edited 7 months ago)

You could see how uncontrollable it was even on the stream itself. They have graphics showing the positioning of the ship. Seems like RCS packed it up and decided to go home (burned to crisp)

[–] [email protected] 17 points 7 months ago (2 children)

Good thing they also sped it up by about 4x or we never would have noticed. πŸ™„

[–] [email protected] 29 points 7 months ago (1 children)

The whole point of this video is to emphasize the rotation of the vehicle. Speeding it up does help with that. You can watch the official feed of you want to watch in real time.

[–] [email protected] 13 points 7 months ago

It's an excellent video. The realtime feed made it look like everything was great, fully under control. This shows that it really wasn't near the end, and it's loss wasn't truly "unexpected"

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[–] [email protected] 13 points 7 months ago (3 children)

I knew it was spinning, but not that much. Can't wait to hear the final report on what happened there.

[–] [email protected] 15 points 7 months ago (1 children)

Reaction control thrusters didn't work. Blame it all on the Everyday Astronaut.

[–] [email protected] 4 points 7 months ago (2 children)

Why would we blame that on him?

[–] [email protected] 3 points 7 months ago (1 children)

Because, if i remember right, he's the one who suggested the modification to the system on a tour with Elon.

[–] [email protected] 4 points 7 months ago

Specifically he asked if they were only using hot gas thrusters on the booster, and I guess Elon thought why not use them for both.

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[–] [email protected] 10 points 7 months ago (2 children)

Yeah to me it looked like they didn't really have any sort of attitude control system (eg RCS thrusters) for while they were in space. As soon as the rocket stopped firing it was spinning, albeit very gently at first.

I'm more interested in knowing what happened with the booster after it's boost back burn, where some of the engines seemed to shut off on their own before the rest were cut. This issue is likely also responsible for the failed suicide burn. Also, why they didn't try the orbital relight of the Starship engines. If the orbital relight was skipped because of orientation issues, then shame on them for not remembering that you can stablise your craft in KSP with just a little bit of vectored rocket burn.

These are apparently still just flying grain silos, a long way away from the full finished product. However it does seem like they're at the cusp of having a viable satellite launch vehicle, even if the re-entry stuff is still bugged.

[–] [email protected] 6 points 7 months ago* (last edited 7 months ago) (1 children)

So apparently they can't use it to launch satellites into orbit until the reentry buggy stuff is solved.

If they can't bring it back into the atmosphere in a controlled manner, it's to big, and designed not to break up, to allow it to reenter anywhere from a failure.

No one wants raining starship parts over a populated area.

It won't matter if it's expendable, but they gotta be in control of reentry.

[–] [email protected] 6 points 7 months ago (1 children)

Yeah I still think that's within their grasp with only minor modifications. Obviously, not testing the engine relight is a big hurdle, but beyond that it's just about a little bit of attitude control and then they can de-orbit into the ocean as before.

Actually getting the craft to survive re-entry, and even land and be re-used is a much bigger task, but it wouldn't take too much to get Starship in the position where it can launch Starlink V2's.

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[–] [email protected] 5 points 7 months ago (1 children)

KSP doesn't simulate the fuel floating into a big blob in zero g. irl you need working RCS to create a little g force to push the fuel down to where the engine intakes are before you can try starting them.

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[–] [email protected] 12 points 7 months ago

Much better perspective.

[–] [email protected] 11 points 7 months ago

The Starship video in general is so cool. And I love the stabilizing effect in this one, it really does help.

[–] [email protected] 7 points 7 months ago (1 children)
[–] [email protected] 7 points 7 months ago (1 children)

I mean, it's literally rocket science

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[–] [email protected] 6 points 7 months ago (3 children)

I wonder how they stabilised the video.

Rotate the video at a constant rate about a point until the rocket hits turbulence/has a change of direction and then repeat?

[–] [email protected] 24 points 7 months ago* (last edited 7 months ago) (1 children)

It's a standard feature in nearly all common video editors (i.e. DaVinci Resolve or Adobe Premiere).

Usually, stabilization goes over all video frames and tries to find image transformations (rotation + translation + zoom) that make a frame match as closely as possible with the previous frame. That's an oversimplified explanation, but from a user point-of-view, these tools are mature enough to be applied with just a few clicks.

This video is definitely the result of that, as, whoever did it, didn't even bother to insert a cut when the feed switches between left side and right side camera, thus making the stabilization spazz out momentarily.

[–] [email protected] 5 points 7 months ago (1 children)

Where do you see the camera switch side? The fin on which the camera is mounted moves every now and then, but I think we only ever see the perspective of one camera.

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[–] [email protected] 12 points 7 months ago (1 children)

There used to be a great subreddit for image stabilisations, always enjoyed seeing stuff from there and people would sometimes go into detail about the tools and techniques they used .

There probably still is, but there used to be too.

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[–] [email protected] 6 points 7 months ago

Most advanced video compositors/editors have stabilization features. What you do is you give the program a couple of reference points that you know aren't moving, and the program will automatically track those points over time

[–] [email protected] 5 points 7 months ago

It's just out there enjoying life having fun. Good job rocket.

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