 [News] Navy developing nanotech to improve ships, Size matters |
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 May 30 2006, 03:13 AM
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Shooting Target  Group: Validating Posts: 1,618 Joined: 29-January 03 From: Montevideo, Uruguay. Member No.: 3,992  |
For those of you interested in militech, here's the CNN story.
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May 30 2006, 03:22 AM
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#2
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Running Target Group: Members Posts: 1,353 Joined: 5-June 02 Member No.: 2,840 |
Could be very interesting.
There's gotta be some other applications for this to. I'm no scientist, but there's gotta be other applications - tiny welders to weld small cracks in hull armor, maybe nanobots that act as instant sutures in the personnel themselves (knitting wounds shut). Pretty cool stuff. |
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May 30 2006, 12:32 PM
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#3
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Running Target Group: Members Posts: 1,428 Joined: 9-June 02 Member No.: 2,860 |
Alas, that CNN article had nothing to do with microscopic, free-roaming robots - the nanotech of science fiction. In real life, nanotech is control of materials at a nanoscale. A typical example is control of grain (crystal) sizes in metals and ceramics by careful heat treating - no mini-robots involved, just a metallurgical furnace, laser, or other heat source. Another example are modern electronics manufacturing, which reliably reproduces electronic structures on microchips at a scale of tens of nanometers. That involves careful crystal growth, spraying new layers, and selective etching. For the foreseeable future, that's all nanotech's going to be. Microscopic robots remain the domain of sci-fi. |
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May 30 2006, 12:37 PM
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#4
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Neophyte Runner Group: Members Posts: 2,174 Joined: 13-May 04 From: UCAS Member No.: 6,327 |
Of interesting note, the US patent office has compiled a new area in the classification system for nanotechnology, class 977. It might not mean much unless you know the US patent classification system, but the office at least is trying to respond to all the new applications dealing with nanotechnology.
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May 30 2006, 03:56 PM
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Dragon Group: Members Posts: 4,589 Joined: 28-November 05 Member No.: 8,019 |
So does this mean that cyberware will START at delta-grade?
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May 30 2006, 04:25 PM
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Running Target Group: Members Posts: 1,353 Joined: 5-June 02 Member No.: 2,840 |
I don't think so. Read "Man & Machine" sometime, in the section about nanotech. They say that nanotech has been part of cyberware systems from the beginning - that without some nanotech systems in them, most cyberware would be too bulky and too Essence-costly to be effective. |
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May 30 2006, 04:46 PM
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Midnight Toker Group: Members Posts: 7,686 Joined: 4-July 04 From: Zombie Drop Bear Santa's Workshop Member No.: 6,456 |
And they probably will for quite a while. The probability of anyone creating grey-goo level autonomous nanorobots falls somewhere between unpossible and not fraggin' likely. We can't even make giagagitic room-sized robots with enough processing power to safely perform basic surgery on a human body. Good luck creating a machine smaller that a human cell with that much memory. |
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May 30 2006, 04:57 PM
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#8
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Neophyte Runner Group: Members Posts: 2,026 Joined: 23-November 05 From: Seattle (Really!) Member No.: 7,996 |
I wonder if they have tried using Nano-Tech to Demagnetize Ship Hulls for mine defense.
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May 30 2006, 08:57 PM
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#9
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Runner Group: Members Posts: 2,556 Joined: 26-February 02 From: Seattle Member No.: 98 |
I was under the impression that it was ferrous materials in ship hulls that the MADs in mines worked against. Is it possible to make a "ferrous" material not respond to magnetic fields?
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May 30 2006, 09:16 PM
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#10
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Neophyte Runner Group: Members Posts: 2,026 Joined: 23-November 05 From: Seattle (Really!) Member No.: 7,996 |
That's what I'm wondering, is if manipulated at the molecular level the hull steel could be made to respond in a different manner than it does under standard manufacture.
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May 30 2006, 09:36 PM
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#11
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Running Target Group: Members Posts: 1,150 Joined: 19-December 05 From: Rhein-Ruhr Megaplex Member No.: 8,081 |
It seems to be possible to make non-magnetic steel. That topic crept up a while back in the german Fanpro forum, and because I couldn't believe that, I tried to check it ;).
Its an alloy of iron with certain metals, and the resulting high-grade steel is not magnetic. It is also not that easy to process, since temperatures out of a different range destroys that non-magnetic property. The german marine use this for ships and the best submarines in the world ;) (at least those without a nuclear reactor). Of course,it has nothing to with nano technologie in any way :). |
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May 30 2006, 10:19 PM
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Beetle Eater Group: Dumpshocked Posts: 4,797 Joined: 3-June 02 From: Oblivion City Member No.: 2,826 |
Nanotechnology could make the processes of developing hyperco and other non-magnetic steels easier, plus they can allow single process production. It's a slow process, but the advantages of no joints or weld butts is huge in many applications, allowing lighter mechanical and structural constructions in addition to electronics. Of course, that's SR level technology, not today's.
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May 31 2006, 01:21 AM
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#13
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Running Target Group: Members Posts: 1,428 Joined: 9-June 02 Member No.: 2,860 |
Not nanotech, but composites, wood, and stainless steel do alright.
Yes. Austenitic stainless steels (like your typical kitchen sink and Paul Revere cookware) are non-magnetic. IIRC, it's the nickel content messing up the ferromagnetism.
Huh. The Germans must be trying too hard to use conventional carbon steels. If you have a slightly bigger budget, common stainless steels are non-magnetic (that 18%+ chromium content drives up the price - chrome ain't as cheap as iron). Like 304 and 316 stainless. Common stuff.
Joints and welds are overrated as weak spots. If you don't mind the price, you can use thin-wall casting or 3D rapid-prototyping techniques. Welds can be as strong as the surrounding material. It's just a matter of cost. Usually, it's cheaper to make weaker joints and welds. |
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May 31 2006, 01:36 AM
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Beetle Eater Group: Dumpshocked Posts: 4,797 Joined: 3-June 02 From: Oblivion City Member No.: 2,826 |
Nanotechnology [used as I'm describing it] would be an extension of rapid prototyping.
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May 31 2006, 01:53 AM
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Running Target Group: Members Posts: 1,428 Joined: 9-June 02 Member No.: 2,860 |
Okay. |
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May 31 2006, 02:48 AM
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#16
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Dragon Group: Members Posts: 4,589 Joined: 28-November 05 Member No.: 8,019 |
Rapid prototyping?
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May 31 2006, 02:52 AM
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#17
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Beetle Eater Group: Dumpshocked Posts: 4,797 Joined: 3-June 02 From: Oblivion City Member No.: 2,826 |
Sterolithography, solid freeform, 3D printing, Selective Laser Sintering, Fused Deposition Modeling... and then Nanofusion.
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May 31 2006, 02:54 AM
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#18
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Running Target Group: Members Posts: 1,353 Joined: 5-June 02 Member No.: 2,840 |
The what, the what and the what now? |
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May 31 2006, 03:03 AM
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#19
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Dragon Group: Members Posts: 4,589 Joined: 28-November 05 Member No.: 8,019 |
I read the article on Wikipedia, but it was also filled with jargon. Is it basically building things microscopic layer by microscopic layer?
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May 31 2006, 03:36 AM
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#20
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Neophyte Runner Group: Members Posts: 2,174 Joined: 13-May 04 From: UCAS Member No.: 6,327 |
So what do you want to know about the field of rapid prototyping, etc? Hilarious how y'all are now talking an area that I do at work. :D |
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May 31 2006, 03:44 AM
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#21
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Beetle Eater Group: Dumpshocked Posts: 4,797 Joined: 3-June 02 From: Oblivion City Member No.: 2,826 |
The people in the unit over have like 13 of the plastics (mostly sterolithography and a couple 3D printers), and I'm readup in laser sintering/plating. What area are you in?
Sure, using a few various methods of fusing stock material together. Nanofusion will have the advantage of interlacing and wider material selection - not to mention tolerances measured in molecules... |
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May 31 2006, 03:48 AM
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#22
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Runner Group: Members Posts: 2,598 Joined: 15-March 03 From: Hong Kong Member No.: 4,253 |
Well, the burning question in my mind is: "how long will it take you to make me my dikote AVS ally spirit?".
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May 31 2006, 03:51 AM
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#23
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Neophyte Runner Group: Members Posts: 2,174 Joined: 13-May 04 From: UCAS Member No.: 6,327 |
I work for the patent office, I examine the applications for them. In the molding arts, but I specialize in injection molding machines, blow molding machines, control systems, and my fave, all the 3-D machines including stereolithography, 3-D sintering, etc... Lately, I'm doing a bunch of imprint technology cases some of them are going after nanostructures so I'm taking a special interest in that area now. So I get to look at the freaking schematics all day long and dream about how they work. If I'm lucky they'll let us see one in action when an inventor comes to the office for a demonstration (which happened once about 6 years ago...) |
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May 31 2006, 03:54 AM
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#24
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Great Dragon Group: Members Posts: 6,640 Joined: 6-June 04 Member No.: 6,383 |
Hmm. Thing is, I remember reading a few articles in the past about the prospect of using nanotech robots to clear away artery plaque. I think they ran in Scientific American. I forgot what the articles said, though. :dead: |
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May 31 2006, 04:00 AM
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#25
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Neophyte Runner Group: Members Posts: 2,174 Joined: 13-May 04 From: UCAS Member No.: 6,327 |
they're still quite a while away from that. A few years ago (about 3, so it may be dated), some researchers came into the office to show what they're doing by manipulating molecules. They showed a motor they managed to create on the video (though all it did was spin), a tick (dust mite? I forget) all of a sudden came out of nowhere crawling around and it got on top and the inventors decided to kick up the motor. That was hilarious, but anyway, point is, they're still a bit aways to getting something like nano robots that will independently move around operating on an artery plaque.
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