Rice Contracted to Provide NASA's Quantum Wire 211
geekman writes "NASA is paying Rice University $11 million to build a prototype quantum wire that can conduct electricity 10 times better than traditional copper cables at one-sixth the weight. Rice has four years to build a one-meter-long quantum wire, which will be made out of carbon nanotubes. Seems like a lot of money for a little wire, but then again, all the rocket scientists at Los Alamos have only ever been able to put together a four-centimeter nanotube."
Reference and extra-info (Score:5, Informative)
And for those who don't know what an armchair nanotube is, here are some images [mtu.edu] (The armchair nanotube is the one in the middle).
Re:Ballistic Conduction (Score:5, Informative)
Exactly zero resistance would be an ideal conductor. I don't think there are any examples of ideal conductors that are not also superconductors, which implies low temperature.
Go Owls (Score:3, Informative)
This actually makes (some) sense - Dick Smalley & Robert Curl on the Rice faculty (and a 3rd guy in England) won that trivial little prize - the Nobel in Chemistry for basically inventing/discovering the buckyball and related carbon nano stuff - or something like that. I also seem to recall that Smalley also has done pretty well in acually being able to manufacture buckyballs.
Also, there is a long history of collaberation between NASA and Rice. Starting before the Apollo program. I had a professor at Rice who designed experiment packages that went to the moon in the Apollo program.
So, if NASA was going to award a contract or grant to somebody for this, Rice does make some sense.
Also, kind of interesting that President Kennedy gave the famous speech "We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard..." on the Rice campus.
It's a proof of concept (Score:5, Informative)
Carbon nanotubules, when properly, manufactured could also have very high tensile strength. Many times stronger than stranded steel cable and weighing less as well. This is the technology people what it use to build the space elevator.
Of course, after proof of concept there are still many challenges to cost effective manufacturing.
There are a dozen revolutionary uses for super wires. But first we need a proof of concept. FYI - I'm looking for a job at a well-funded nanotech startup. Many qualificiations, inquire within!
Re:Seems like a lot of money for a little wire, (Score:3, Informative)
Linkage [somethingawful.com].
A quote from within said piece to entice your fancy:
Re:Further strains on my loyalty to my alma mater? (Score:4, Informative)
Ummmm, dude, NASA is the one setting up the grant. That would imply that they're thinking about using it in spacecraft, satellites, probes, etc. where weight is a huge fucking deal.
From TFA:
Sorry, but you missed the point by about a lightyear.
Re:More poorly spent money... (Score:1, Informative)
May be you should read more than Forbes and Wall street. Just because Smalley got nobel prize doesn't mean he is smart all the time. Yes his nobel prize work was good, but if you have been to a recent DARPA contract meetings, he is stripped out for flaws in his arguments.
Also Rice is not the leader in nanotubes. They don't even have the best nanotechnology facility out there. It is not even part of NNIN (national nanotechnology infrastructure network) which does more interesting things. Yes again Dr. Smalley chose not to join the network because according to him colloboration has too much overhead.
Re:It's a proof of concept (Score:3, Informative)
With more conductive wires, you can get higher currents and thus higher power for the same size motor. Losses will be about the same becasue you'll just scale your motors to a suitable heat level again.
Higher power/weight ratios will make everything else that uses them lighter and more efficient.
Re:60 times better? (Score:3, Informative)
Re:It's a proof of concept (Score:5, Informative)
The dudes at Rice invented 3 of the 4 current methods for producing buckytubes. Their current research involves the use of catalysts applied to the end of existing tubes which results in "cloning" the tube, allowing for unprecedented control of the tubes characteristics. Here [house.gov] are some of Smalley's comments on buckytubes...
"These single walled carbon nanotubes are uniquely specified by two small integers, n and m. The diameter is roughly proportional to the sum, n+m. The electronic properties, however, are determined by the difference, n-m. If n and m are the same, then n-m=0 and the tube conducts electrons like a perfect metal. In the trade it is called and "arm-chair" tube. Electrons move down this tube as a coherent quantum particle, traveling down the tube much like a photon of light travels down a single mode optic fiber. Individual armchair tubes can conduct as much as 20 microamps of current. This doesn't sound like much until you realize that his little molecular wire is only 1 nanometer in diameter. A half inch thick cable made of these tubes aligned parallel to each other along the cable, would have over 100 trillion conductors packed side-by-side like pipes in a hardware store. If each of these tubes carried only one microamp, only 2 percent of its capacity, the half inch thick cable would be carrying one hundred millions amps of current. Fabricating such a cable - we call it the "armchair quantum wire" - is a prime objective of our work."
Buckytubes exceed the strength of carbon fiber (30 to 100 times that of steel), the thermal transfer ability of diamonds, and are the best electrical conductor of any molecule known. They promise great advances not only for the transmission of energy, but also for energy storage (including hydrogen), composite fabrics, and even solar power. The world's leading producer of buckytubes is Carbon Nanotechnologies Incorporated [cnanotech.com], a Houston based spin-off from Rice. In the computer category, IBM [ibm.com] has already announced the successful manufacture of buckytube transistors. It may not be all that long until we start to see some real world applications that begin to fulfill the exalted "gee whiz" promise of nanotechnology. And I'm not talking about facial creams.
billy - no...they are NOT calling the transistor 'little blue'