Re: [Vo]:IBM Stop Motion Film of Cu Atoms
It was well known that the surface atoms of metals e.g. in catalysts are very mobile, and this has scientific and technological importance- see e.g. my Surfdyn psper (Fusion Technology 24 AUG 1993, 122-6) re CF. Peter On Thu, May 2, 2013 at 5:18 AM, Eric Walker eric.wal...@gmail.com wrote: On Wed, May 1, 2013 at 11:42 AM, Ron Wormus prot...@frii.com wrote: Pretty Cool. http://io9.com/this-is-**officially-the-worlds-tiniest-** stop-motion-film-486198380?**autoplay=1http://io9.com/this-is-officially-the-worlds-tiniest-stop-motion-film-486198380?autoplay=1 That's entertaining. We will not be able to witness a higher-resolution stop-animation video until they can film the location of individual quarks and move them around, frame by frame. This will be a little harder to do because of the energies, timescales, sizes and quantities involved. Eric -- Dr. Peter Gluck Cluj, Romania http://egooutpeters.blogspot.com
Re: [Vo]:IBM Stop Motion Film of Cu Atoms
Come to think of it, this means that in principle IBM could store data at one bit per atom starting now. Perhaps the biggest difficulty would be finding the data again. I guess this is the lower limit to data storage. I doubt that subatomic storage will ever be possible. Probably, archival storage in DNA will become practical before storage in individual atoms does. As I mentioned before, all of the data in world would fit into roughly 6 ml of DNA. A prof. at Harvard has stored and reproduced data in DNA -- a copy of his own textbook. The techniques are too slow and expensive to be competitive today. I believe they are derived from technology used in the human genome project. An unexpected spin-off. - Jed
Re: [Vo]:IBM Stop Motion Film of Cu Atoms
I believe another difficulty for this form of storage is that the temperature must be kept extremely low to keep the placed atoms from jumping all over the place. I also find it incredible that the metal surface appears to be so smooth at this level of detail. Any idea what you would see if you placed one new copper atom upon the surface? Unless they intentionally moved all the excess ones off the now smooth surface, then it appears that any new ones would be absorbed into the surface. It would be interesting to see how a gas atom behaves if placed upon this surface as well. Would oxygen get attached to the nearest copper and freeze in place or would it freely exchange locations like the more inert carbon? Then, of course I found it interesting that the carbon atoms seem to run into each other without forming a bond. Does that suggest that the carbon copper bond is more powerful than a carbon pair? One last question: How deep would a carbon nano sphere dig into the surface? There is a great deal of exciting work being done at these sizes and it is apparent that many new useful discoveries will result. Storage in DNA might become important one day provided that it can be sped up and that a much better system does not come first. Life has found it to be useful and it has the advantage of billions of years of evolution. Perhaps life would have found one of the better ways had it been able to operate at higher energy levels. Fortunately we do have this luxury. Dave -Original Message- From: Jed Rothwell jedrothw...@gmail.com To: vortex-l vortex-l@eskimo.com Sent: Thu, May 2, 2013 10:51 am Subject: Re: [Vo]:IBM Stop Motion Film of Cu Atoms Come to think of it, this means that in principle IBM could store data at one bit per atom starting now. Perhaps the biggest difficulty would be finding the data again. I guess this is the lower limit to data storage. I doubt that subatomic storage will ever be possible. Probably, archival storage in DNA will become practical before storage in individual atoms does. As I mentioned before, all of the data in world would fit into roughly 6 ml of DNA. A prof. at Harvard has stored and reproduced data in DNA -- a copy of his own textbook. The techniques are too slow and expensive to be competitive today. I believe they are derived from technology used in the human genome project. An unexpected spin-off. - Jed
RE: [Vo]:IBM Stop Motion Film of Cu Atoms
Actually it could be much better than one bit per atom. It depends on how accurately the distance between atoms can be measured and how closely they can be packed. On a 2D surface there might be an analogy to linear RLL codes. Current digital storage systems use Run length limited (RLL) codes where it's the distance between bits that contain the information. Theoretically you only need two samples to get lots of bits - if you can measure the distance to an accuracy of 1:4096 you get twelve bits per atom! ( Last I knew, hard disks use RLL 2,7 meaning minimum space is 2 units and max is 7 units, and CDs use RLL 8,14.) From: Jed Rothwell [mailto:jedrothw...@gmail.com] Sent: Thursday, May 2, 2013 7:51 AM To: vortex-l@eskimo.com Subject: Re: [Vo]:IBM Stop Motion Film of Cu Atoms Come to think of it, this means that in principle IBM could store data at one bit per atom starting now. Perhaps the biggest difficulty would be finding the data again. I guess this is the lower limit to data storage. I doubt that subatomic storage will ever be possible
Re: [Vo]:IBM Stop Motion Film of Cu Atoms
Hoyt A. Stearns Jr. hoyt-stea...@cox.net wrote: Current digital storage systems use Run length limited (RLL) codes where it's the distance between bits that contain the information. ** ** Theoretically you only need two samples to get lots of bits - if you can measure the distance to an accuracy of 1:4096 you get twelve bits per atom! Ah. You mean if you can measure the atomic diameter to within 4096. I see. There has to be some lower limit to that. The Planck length or something. See the Scale of the Universe, and awesome web page: http://htwins.net/scale2/ - Jed
[Vo]:IBM Stop Motion Film of Cu Atoms
Pretty Cool. http://io9.com/this-is-officially-the-worlds-tiniest-stop-motion-film-486198380?autoplay=1
Re: [Vo]:IBM Stop Motion Film of Cu Atoms
It's blowing my mind to think how tiny this actually is. Anybody who thinks there is a difference between art and science doesn't know a damn thing about either. Sci-artists unite! On 5/1/13 11:42 AM, Ron Wormus wrote: Pretty Cool. http://io9.com/this-is-officially-the-worlds-tiniest-stop-motion-film-486198380?autoplay=1 -- Ruby Carat r...@coldfusionnow.org mailto:r...@coldfusionnow.org Skype ruby-carat www.coldfusionnow.org http://www.coldfusionnow.org
Re: [Vo]:IBM Stop Motion Film of Cu Atoms
On Wed, May 1, 2013 at 11:42 AM, Ron Wormus prot...@frii.com wrote: Pretty Cool. http://io9.com/this-is-**officially-the-worlds-tiniest-** stop-motion-film-486198380?**autoplay=1http://io9.com/this-is-officially-the-worlds-tiniest-stop-motion-film-486198380?autoplay=1 That's entertaining. We will not be able to witness a higher-resolution stop-animation video until they can film the location of individual quarks and move them around, frame by frame. This will be a little harder to do because of the energies, timescales, sizes and quantities involved. Eric
