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Two questions about San Francisco

2. Was it determined in TMP that Starfleet HQ was in San Francisco or was it known before?

TMP was the first on-screen evidence of Starfleet HQ being in San Francisco. 23rd Century Earth was never depicted in TOS and the original series gave us very little in the way of 23rd Century Earth worldbuilding or description.
 
Obviously, there are trade-offs for either position, and one could write a dissertation supporting either. Beyond workplace convenience, other factors, such as environmental impact (how toxic is it to build a starship?) and material sourcing (Are you bringing resources down to the surface only to lift them up again?), will definitely play a part.
 
Although I think they have the tech to do so, it probably doesn't make sense to de-orbit a starship if some of the smaller tasks can be done in space. I can attest that IRL, repair and refit work can take place pier-side as well as in a shipyard's drydock.

Yeah. But it seemed like a pretty major job.

If you're like me you grew up looking at books with pictures like this, which were so cool it sort of imprinted orbital construction on the brain.
 
Yeah. But it seemed like a pretty major job.

If you're like me you grew up looking at books with pictures like this, which were so cool it sort of imprinted orbital construction on the brain.
I get where you're coming from and I am there as well, to a certain degree.
But over the years, I've also come to appreciate all the systems and infrastructure that is necessary even for something as simple as a 3/4" hex nut to exist. From the mines to the forges to the extruders, a lot goes into the making of that nut. Then there some kind of supply system after that.

Similarly it is not just the construction of the starship but also the supply chain, etc., for that construction, and also the infrastructure (repair, replacement, and maintenance) that supports the construction infrastructure. It's a lot more complex than "build it in space."
 
Similarly it is not just the construction of the starship but also the supply chain, etc., for that construction, and also the infrastructure (repair, replacement, and maintenance) that supports the construction infrastructure. It's a lot more complex than "build it in space."

Yeah you're right, so much harder to scale up.
 
...Assuming gravity is something you need to account for, in the sense of running it through the Accounting Department. And not just something you acknowledge with a shrug while commuting to orbit via transporter while antigravs float megatons of sensitive equipment and materiel there for the day's work.

For some reason, the Trek players think "ore" is something worth hauling on and off planets and through interstellar space. If worthless inert rock contaminated by trace amounts of valuables is considered an insignificant or otherwise manageable transportation expense, the cost of moving pure duranium or vertenium cortenide mightn't stand a chance of stopping you from building your starships right above your high-gravity planets.

Timo Saloniemi
 
Yeah. But it seemed like a pretty major job.

If you're like me you grew up looking at books with pictures like this, which were so cool it sort of imprinted orbital construction on the brain.



I assume you're talking about pictures of orbital construction.

One image I certainly remember is the uncompleted Space Station V in "2001: A Space Odyssey"

Robert
 
I assume you're talking about pictures of orbital construction.

Yes, a painting called "Assembling the ships for the Mars expedition" by Chesley Bonestell, 1956. Crews in spacesuits work on some pointy, large-winged spacecraft, with Earth below and a wheel space station in the distance.
 
Yes, a painting called "Assembling the ships for the Mars expedition" by Chesley Bonestell, 1956. Crews in spacesuits work on some pointy, large-winged spacecraft, with Earth below and a wheel space station in the distance.


Thank you

Ha, I half guessed you were talking about a Chesley Bonestell painting.
I remember that painting along with Bonestell's other works.

About the subject of orbital construction, in at least a few science fiction books, an aspect of orbital construction is that a lot of the material that goes into it comes from the moon. Of course the reason why is that the moon's gravity well is much less deep than Earth's and its much easier to get bulk material into space.

One of my uncles, now deceased, was an egghead. Although he wasn't actually in the army, he worked for the army Corps of Engineers at the University of Illinois Urbana-Champaign.
A long time ago, he once told me about a studdy he had been involved in exploring the feasibility of construction on the Moon in the late '60s/early '70s during the Apollo moon missions.

If I remember right, he said just about everything they would need for construction in bulk is on the moon but the biggest problem was the lack of water.

My uncle was never interested in science fiction so it was quite fascinating to find out he had seriously worked on such science fictiony stuff.

As an aside, another thing he talked about a couple of times was working on voice recognition software long before it became common. No he's not the father of voice recognition, he was just one of many people working on it.

Robert
 
...The one(s) with a certain elderly and bald character and his coy finger-snapping companion in the background, if we look carefully enough?

Timo Saloniemi
 
Starships have to be built to withstand thousands of gees of acceleration, otherwise they'd take weeks or months to get up to significant sublight speeds. So a paltry one gee should be no big deal.

The real advantage of building spaceships in orbit is that you don't have to expend the energy to accelerate them out of a planet's gravity well. But again, that wouldn't be that difficult for an impulse engine, plus you've got antigrav technology to make it even easier.

Right. Once you have antigrav, building stuff in hard vacuum doesn't make sense if you don't have to. Even if antigrav is fuel-inefficient, you only need it for a little while to get out of a gravity well before switching to more conventional reaction drives.

"Blast-off" in the future is akin to a balloon ride, not a rocket launch.
 
Right. Once you have antigrav, building stuff in hard vacuum doesn't make sense if you don't have to. Even if antigrav is fuel-inefficient, you only need it for a little while to get out of a gravity well before switching to more conventional reaction drives.

"Blast-off" in the future is akin to a balloon ride, not a rocket launch.
Except oxygen tends to oxidize and you may not want materials exposed to it.
 
One of my uncles, now deceased, was an egghead. No he's not the father of voice recognition, he was just one of many people working on it.

Robert

The should have written a book.

I wonder if anyone did a model of the Bonestell rocketplane. I like it better than Orion III.
 
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