The Pod Bay

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2:04 AM

Q: Is the single-use attitude-indicator tag necessary? Should it just be synonymized with instrument?

This is about a reasonable tag that may be used so infrequently and has a good alternative that I wonder if we should cull it out of good tag hygene practice. What order were space shuttle roll-pitch-yaw angles displayed in? is the only question with the attitude-indicator tag (1 question), but ...

10 hours later…

peterh

12:33 PM

@geoffc I think a rational strategy could be now: launching SN15-SN20 until explosion, with the goal of stabilizing the whole starship + raptor system and serving the public loving to see rocket launches (and sometimes, explosions). Meanwhile, building and testing the BN infrastructure

With the infos collected, hopefully the first successful BN landing won't need 4 (much bigger) booms.

After that, first SN-over-BN two-stage configurtion can start. There is no need to begin with an orbital flight, it will be doable after some test launches successfully happened.

Another thing what I think: crew starship is not really needed, imho. There is no need to go to LEO with fins and with big, empty tanks. It is a waste of resources. Starship can take 100 tons to LEO, it is enough for a LEO-LMO rocket.

@geoffc Btw, what will happen if a BN landing ends in RUD? The boom will be much bigger + it will risk the tower.

1 hour later…

Feeds

2:03 PM

Testing software so it’s reliable enough for space

Ben Popper on May 11, 2021

We’ve talked about the engineers who write the code that operates SpaceX spaceships. Now let’s talk about the people who build and maintain the tools and processes that enable the developers and ultimately, help accomplish the mission of flying astronauts to space. Stack Overflow talked with Erin Ishimoticha, an engineer in the Software Delivery Engineering…

2 hours later…

geoffc

4:17 PM

@peterh In general a landing vehicle has WAY less fuel/oxy on board than a launching one. Ergo the amount of energy possible to release is much less. Momentim is not so bad (nor kinetic energy) since it is both its lightest at the point of landing, and is also very slow assuming it has manged to slow down at least a bit.

peterh

@geoffc Funny, super heavy empty mass is 120t, starship empty mass is 85t. Probably the rest fuel scales roughly linearly with the empty mass, so it won't be a much bigger boom. However, the cost of a super heavy is probably much more than of a starship.

...what would also explain, why did the develop & rud-test the starship first.

PearsonArtPhoto

5:07 PM

There is roughly twice as much fuel in Super Heavy as Starship, as I understand.

geoffc

5:51 PM

@PearsonArtPhoto But they both land as close to empty as they can.

PearsonArtPhoto

True enough.

Space Exploration Meta

6:42 PM

Q: My question was closed after the admins moved it here

I asked a question over astronomy and the admins migrated it here, soon after it was closed for being off-topic while I wasn't even the one who put it on this stack. What can I do about this problem? Would a future Dyson sphere or swarm around our Sun actually be beneficial to people on Earth?

support close-reasons closed-questions

ymb1

7:20 PM

hi @called2voyage

Yes, imgur claims no copyright to the images, but by uploading them, you are giving Stack Exchange permission to license them under CC BY-SA. — called2voyage ♦ 1 min ago

called2voyage

ymb1

the remark says: ... User contributions licensed under

called2voyage

yes, and everything you upload is considered a user contribution

ymb1

So if I upload (to ask about) and properly cite and link a poem, I'm saying I'm owning it? I find it hard to believe.

by upload here, I mean to quote text that is the work of other(s)

called2voyage

If you clearly indicate it as a quote and provide citation, it is covered under the right to quotation

but that doesn't extend to images

ymb1

7:23 PM

On Aviation where I frequent, I block quote any images, would that be acceptable in addition to the link?

called2voyage

> Images that don't have a CC-BY-SA compatible license, you cannot use them. End of story really.

A: Are we allowed according to the ToS to exempt a part of our post from the CC license?

Talking from an European perspective, there is no fair use, and citation right is very limited, it needs to be a small part of the whole and properly attributed to source and author, and stand apart from the rest of the content as a citation(indentation, blockquote, other background, etc..) But,...

That said, SE doesn't enforce this requirement on their users. I'm just letting you know that copyrighted images are not ok to share without permission.

ymb1

It says:

> Talking from an European perspective, there is no fair use ...

SE is in the US

called2voyage

That was only for that paragraph

ymb1

If I understand correctly, but I just now flagged an older post of mine in main meta for an official response from SE's legal team -- as I now understand and appreciate your point of view, and time :)

called2voyage

The next paragraph begins:
> But, the Stack Overflow ToS require everything to be licenced under CC-BY-SA license.

@ymb1 Ok, thanks :)

ymb1

7:29 PM

I'll keep you posted if I ever do get a response, I'm not holding my breath :)

Space Exploration Meta

Q: Removed images from 'Voyager Golden Record ninth planet' question

Before asking I searched this meta. I saw this comment re a moderator removing images not uploaded to stack imgur, rather embedded. Which for educational purposes, it should be fine, and if it isn't, the image owner can contact SE's legal team. The comment said: ... they were invalidly entered i...