Hubert's Interesting Nanoassembler
SEWilco writes: "In the Nando/AP article announcing the winner of the Lemelson-MIT Student Prize, I noticed that he's built a machine which is assembling a few thousand atoms of almost any material into various shapes. The pictures show 2D shapes, but he mentions 3D as a goal." Congratulations to Brian Hubert -- what a cool device.
Ten bucks says someone figures out a way to draw nanoporn in the next five years.
- I don't care if they globalize against free speech. All my best free thoughts are done in my head.
This can't be right because my local CompUSA salesperson was formal: the inkjet printer I bought there had the highest resolution of all.
While I was working at IBM's Almaden Center this sort of thing was getting lots of attention. Arranging atoms on copper plates to be exact. Take a look at:
http://www.almaden.ibm.com/vis/stm/corral.html
Nathaniel P. Wilkerson
Domain Names for $13
Nathaniel P. Wilkerson
www.haidacarver.com
Didja read the press release about Mr. Hubert?
Apparently, Mr. Hubert is a brilliant engineer, a brilliant computer scientist, a brilliant concert pianist, and a brilliant inventor. Oh yeah, and a brilliant architect too. I bet he even cleans the floors in the mathematics wing at MIT, and lives in southie with his brilliant med student girlfriend...
I know these press releases are designed to talk people up, but MIT's have to be the worst of all. Yeah, Mr. Hubert's a smart guy. No matter how smart he is, he's probably only brilliant at one of the above. There just isn't enough time in the day to be brilliant at everything.
Sheesh...
Let's try not to let fact interfere with our speculation here, OK?
Being able to nanoassemble stuff in 2D is nothing new. 3D is a "goal", which means it's a long way from anything useful. (And I know high school students that can write better articles than the AP reporters.)
-Splat
1: Power supply may not easily scale down. 2: THe electronics currently cannot scale down in this way, and it will require fundamentally different technology (i.e. vacuum tube -> Solid state -> ??) to make work. Anyway, I think that it will be many years before we find what we are looking for here.
LedgerSMB: Open source Accounting/ERP
No, I think I prefer a good old bash-assembler, don't you think? :)
"as is arrogance"
Have these dexter spudboys learn some humility and I may begin to show some respect for their brilliant wankery. it's the unrestrained braniacs of the world that have given us nukes and filthy mfctring methods. what is needed, here as in everywhere, is some bloody fucking wisdom, some basic human sympathy...
::I will not moderate my opinions for your stinking karma
I write the entire government secret files that I stole onto the back of a 5 cent piece. Use it to pay for a pencil that my contact is selling.
The FBI going to be able to electro-microscope everything? I think not. Yet I think nano-printers will be a bit percuiliar and expensive for your local crime syndicate so this is in the realms of cross nation spying.
Oh I suppose this technology could be used for powers of good but that's not really as interesting.
It's turtles all the way down.
This is a nanoporn version of that famous goatse.cx picture, greatly magnified:
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Some humilty to who? I mean humility means respect as you say... Should it be to the one sided ramblings of a paranoid irrational nut like yourself? Or to the reality itself and the nature of limited resources, chaotic processes, and wear and tear?
Now I'd like for you to apologize to Mr. Hubert, but feel free to tell Edward Teller to fuck off.
You don't have the decency to take everyone on a case by case basis.
Now, then what are you afraid of?
Tiny little robots making you watch more football?
You could go a long way to learn about you fear so much.
Oh and enjoy the roof over your head. Someone had to figure out yo stand under a board laid over two pillars some thousands of years ago.
The message on the other side of this sig is false.
I've about had it with paranoid illiterate morons talking about arrogance when ever someone dares to lift a finger to do something.
The message on the other side of this sig is false.
If you haven't read the book linked to above (or one like it), go read it now. Otherwise you're not going to understand what happens to us over the next decade.
(As a bonus question, students may want to prepare a paper on how open source methodologies can be used to circumvent the Grey Goop problem, in place of the top-down regulation that Drexler seems to be advocating :)
Last year I wrote a paper on "Open Sourcing Nanotechnology Research and Development: Issues and Opportunities" which was included in the poster session at the Molecular Nanotechnology Conference last November. The paper includes a section on how open source approaches could help improve safety. A draft of the paper was discussed on Slashdot last October as Open Source Nanotechnology
As the AC notes above, this may be nanoscale assembly, but it is not the molecular engineering with precise placement of individual atoms that Drexler talks about.
BTW if you look at Eric Drexler's Engines of Creation cited above you'll see that he actually argues not for top-down regulation but for a synthesis of strategies to deal with dangers from nanotech.
If you are interested in issues related to molecular nanotechnology, come on over and join us at www.Nanodot.org. Among other things we're currently having a discussion about regulation and nanotech.
Did anyone check to see if this guy is human?
STMs are so neat. It's one of those ideas you look at and think "no way could that work". It's just several piezoelectric actuators, like those in cheap high-pitched buzzers, glued together at right angles, with a pointed needle on the end. The business end is brought close to a surface until there's some leakage current across the gap, and then it's raster-scanned in 2D while servoing the height to keep the leakage current constant. The height servo value is the output. It's simple, small, and cheap, compared to, say, an electron microscope. A STM could have been built with 1950s technology, but nobody thought to try it. It just didn't seem reasonable that you could sense individual atoms with a pointed needle moved around by a mechanical actuator.
Man, 12 hours later and still nobody gets my stupid joke. What if I'd said Inventor Makes "Very Little" Progress -- would that help? Get it? Nanotech? HAHAHA
sigh
--
Sometimes nothing is a real cool hand.-- Cool Hand Luke
D. Piner, J. Zhu, F. Xu, and S. Hong, C. A. Mirkin, "Dip-Pen Nanolithography", Science, 1999, 283, 661-63.
Go here for their web page. The are able to write the word 'NU' 50% smaller than what Mr. Hubert was able to accomplish. In addition, they are also trying to do this in parallel, using individually addressable AFM probes.
BTW: the probe tips that was used, can simply be bought here. It's a very established technology dating back more than a decade ago. It is also quite irresponsible that the MSNBC story here and Mr. Hubert's web site gave absolutely NO credit to the work by Northwestern. I guess to the media and the un-knowning public, an invention from MIT sounds a lot sexier than one done by Northwestern. By the way, I'm someone doing research in Micromachining, but I'm not affliated with Northwestern University. In case someone want's to flame me.
Even if you build a self-replicating machine, and even if you make it small, you cannot make it replicate itself smaller and repeat the process ad infitum. The square-cube law will stop you even before your assembly processes break down.
Brackets contain world's first nanosig, highly magnified:[.]
From the MPEGs it's easy to see that he's using the ThermoMicroscopes Explorer AFM for this work, as it has a very distinguished shape.
Also, he mentions using ordinary cantilevers and tips, which are totally ubiquitous these days --- you can even buy them on the web (this is the above manufacturer's retail outlet for the Explorer's cantilever supplies).
But this leaves me with a big question. I think this is great work for an MIT postgrad, and a very nicely presented set of results, but if he's using ordinary equipment and ordinary AFM techniques, then what is there new in this work?
"The question of whether machines can think is no more interesting than [] whether submarines can swim" - Dijkstra
If you really want to write amatuer erotica there are plenty of newsgroups for it. Or why not start your own site using the Slashcode for such stuff (starting a website costs about $.95 these days) and maybe you'll get visitors that actually are at your site looking for such stuff rather than geeks looking for techie stuff. If your going to post such stuff on Slashdot find a good anti-porn censorship discussion to attach it to and include some cyber babes (Aya from Parasite Eve and Quistis, Rinoa, and Selphie from FF8 strike my fancy). ;>
At what price learning? At what cost wisdom? The price is a man's peace of mind, and the cost is his life.
I wonder if it's 2nd or 3rd level ... mmm, too much D&D ...
And another mit guy totally misses the point.
Better hope they don't go in for quantum porn; the last thing any decent citizen wants to see is a naked singularity