REPLICATORS: This forum needs a like button. Creating a self replicating army might not be capable with the story's given technology (though advanced adaptive AI's could theoretically exist and be used for colonizing/scouting, thereby giving mankind something to tinker with).
The number of drones and automated logistic facilities need would be tremendous in order to capitalize on swarm tactics. A huge and risky investment, but something worthwhile if it could be pulled off.
Self-replicating machines are as uncontrollable as biological weapons. Literally. They are a guarantee of a bad outcome somewhere down the road. Because a self-replicating machine is life in every sense of the term, and we should know by now that life will not be controlled or contained.
Arioch wrote:Self-replicating machines are as uncontrollable as biological weapons. Literally. They are a guarantee of a bad outcome somewhere down the road. Because a self-replicating machine is life in every sense of the term, and we should know by now that life will not be controlled or contained.
That doesn't preclude the use of nanoswarms for fast construction though. Put some on a mass of alloy and you get a ship hull in a few days without any necessary interactions.
dfacto wrote:That doesn't preclude the use of nanoswarms for fast construction though. Put some on a mass of alloy and you get a ship hull in a few days without any necessary interactions.
I think Arioch's overestimating the difficulty of controlling self replicating machines (a bigger problem seems likely to be keeping them replicating when they've exhausted easily-accessible local resources or get confused and clog up their refining machinery with junk rock instead of useful ore) the use of nanoswarms for rapid construction is precluded by an entirely different set of problems...supplying power, supplying nutrients, extracting waste heat and waste materials, etc. Such an approach to assembly of large objects is likely to be quite slow.
Ktrain wrote:Ya, in Star Trek you can poof out a cup of coffee but pooffing out a ship doesn't happen
Well the replicator in Star Trek are more related to teleportation than to nanomachine. It kind of a godlike plot object. It reorganise matter (often wasted matter) into a new meal/drink.
I wont try to find a reason (other than because it cooler to see a space shipyard with a lots of SCV roaming around an half build hull) why they just dont "beam" a new ship
One thing that I do find that seems very Star Trek is 3-D printers, which are growing more sophisticated by the day. I forsee a point where a design (mechanical or biological) will be loaded and within minutes a completed "copy" will be produced. Biological applications appear to be most promising at present. Materials engineering will need to come a long way, however, before really useful parts or fully-assembled devices and components can be produced. That said, 200+ years into the future, I expect those breakthroughs to have been made.
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Karst45 wrote:
I wont try to find a reason (other than because it cooler to see a space shipyard with a lots of SCV roaming around an half build hull) why they just dont "beam" a new ship
or why not "beam" whole crews into existence to man your "beamed" ships
War time losses thats ok i will just beam another fleet into existence and maybe a few ground regiments while i am at it
Karst45 wrote:I wont try to find a reason (other than because it cooler to see a space shipyard with a lots of SCV roaming around an half build hull) why they just dont "beam" a new ship
They do make a plot point a few times of replicated matter being full of 'errors'. It's somewhat possible that at the tolerances and energy scales Star Trek tech works that replicated phaser arrays, shield generators, warp coils, etc., fail in spectacular ways. Having said that, I can't imagine that gross structural features or things that are not prone to explosion (armor plating, the ship's interior furnishings, the windows, as examples) aren't simply not replicated en masse, leaving the ship's construction in space dock to mostly be crews installing components on a mostly replicated frame.
Cdr Straker wrote:One thing that I do find that seems very Star Trek is 3-D printers, which are growing more sophisticated by the day. I forsee a point where a design (mechanical or biological) will be loaded and within minutes a completed "copy" will be produced. Biological applications appear to be most promising at present. Materials engineering will need to come a long way, however, before really useful parts or fully-assembled devices and components can be produced. That said, 200+ years into the future, I expect those breakthroughs to have been made.
3D printers will be very important and are already getting to the point where they can be used for producing working parts rather than prototypes that are mainly good for testing fit (http://www.technologyreview.com/energy/37540), but they'll always be limited in speed for reasons similar the problems I mentioned with nanotech. You have to have time for heat to spread through and be removed from the part, allow for internal strains to relax, etc and the really useful processes require post processing to achieve a full-strength part...metal sintering and impregnation can't be done instantly, forming a robust ceramic from component powders requires time for different substances to diffuse into each other and recrystallize, etc.
That and the simple mechanical issues of laying things down a few microns at a time...you can expect large parts to take a considerable amount of time to complete. 3D printing's flexible and capable of making structures that are otherwise impossible or just impractically difficult to make and of quickly switching to making different parts (or even of making multiple different types of parts at once), so it'll almost certainly play a big role in future aerospace components, but it's not fast.
Karst45 wrote:
I wont try to find a reason (other than because it cooler to see a space shipyard with a lots of SCV roaming around an half build hull) why they just dont "beam" a new ship
or why not "beam" whole crews into existence to man your "beamed" ships
War time losses thats ok i will just beam another fleet into existence and maybe a few ground regiments while i am at it
here you enter into the theological chapter of "soul"
But considering that in an episode they beamed someone were at first they tough they failed to, then realize they actually made a copy of him on the destination, cloning in this way would be "simple"
There's a few ways that Star Trek tried to limit the damage of transporters, but alas some of the writers apparently didn't get the memo and made some episodes that threw those damage control measures out the window. One of them was the idea that the entire and exact molecular composition of a human was too complex to store digitally, the patterns were stored in a temporary analog buffer. The other was that, at least occasionally, they explained that the molecules that were beamed around were the person's original molecules.
As for self replicating machines. If they are allowed to alter themselves, they'll eventually break away from their original designs enough to cause a problem unless there are long term active controls. If they aren't allowed to alter themselves, you still have to worry about quality control in the very long run.
Self assembly is an interesting concept, especially when you consider that it might be some sort of scaffolding. Also there is the very interesting mixture of microgravity and high vacuum that is space. You may be able to play with process parameters like surface energy etc to make scaffolds more useful.
Also there isn't anything preventing growth stresses from being eliminated in much the same way as sintering (or annealing as the process of removing dislocations / growth stresses is called for bulk metals). While I agree it appears that nanotech processes could be slower, if all you need to actually grow is a little disk the correct diameter every mm (or more often for large % change with length in diameter) AND you get lucky that you can say use surface energies to make it so that said scaffold structure "wicks" a molten liquid that will cool to form your material (obviously better for things like metallic glasses and less good for things like fiber composites). Basically I'm saying a "realistic" process would take into account the limitations inherent to the process and maximize the utility by limiting those problems. If the problem is slow growth, don't grow much material.
Although truthfully given the high levels of complication, it might not be a problem to setup massive one-time-use CVD (and related) deposition chambers in orbit (or largely out of the solar system gravity well) and just grow / deposit the whole ship in one go, especially if lot's of special layers need to be made (such as every 5 microns putting down a layer of graphene or diamond or diamond-like carbon something to help dissipate heat)...
something I find funny about space ship design is that they always want to put the bridge on the outside?
I get it that old real world ship did this but it makes no sense on a ship that advanced. even modern armies know this seeing as there are (at least) subs the bridge is in the middle of the ship. it uses cameras and other electronics senors to give them everything the need and more.(it also gives them more room to spreadout.)
I mean why give a ship a weak point that's that easy of a target?
The reason the bridge is on the outer surface of the ship most of the time is that science fiction shows take artistic license and frequently borrow from the "Space is an Ocean" trope.
It's silly, but it's a silliness that most audiences have come to expect. I'd love to see a series that brutally subverts the notion though.
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Razor One wrote:It's silly, but it's a silliness that most audiences have come to expect. I'd love to see a series that brutally subverts the notion though.
Essentially everything in space sci-fi is silly. Honestly, who the hell would even send out a manned ship to do battle in space? It's 2010 and we're beginning to kill each other with robots, are we really going to put squishy people in warships and slug it out old-timey style in 200 years?