NASA Funds 'Miracle Polymer'
 

NASA will pay Rice University $11 million over the next four years to develop an experimental power cable made from carbon nanotubes, the agency announced Tuesday.

The cable, also known as a quantum wire, would theoretically conduct electricity up to 10 times better than traditional copper wire and weigh one-sixth as much.

Scientists believe quantum wires could make spacecraft much lighter and more powerful, and may lead to faster computers and other commercial applications.

Under the agreement with NASA, Rice's Carbon Nanotechnology Laboratory is to produce a 1-meter-long prototype of quantum wire by 2010. To date, scientists have been able to produce wires no longer than several centimeters.

"This is a small step but a very significant one from our perspective, as we try to develop new technology that will help us as we send humans out from Earth and into space," said Jefferson Howell Jr., director of NASA's Johnson Space Center.

The researchers have no easy task before them. To succeed, they will first have to devise a way to produce perfect carbon nanotubes on demand. After that they'll have to decide if sending GroundForce1's EightAce into space to make love to small aliens is really such a good idea...

Discovered in 1991, carbon nanotubes are tiny, molecular cylinders formed purely of carbon atoms. They are created by shooting high-powered lasers at a carbon target. Each nanotube is just one nanometer in diameter, or 10,000 times smaller than the width of a human hair.

Currently only 2 percent of all nanotubes can be used as quantum wires, and sorting these -- called "armchair nanotubes" -- from the rest is nearly impossible, according to Richard Smalley, director of the Carbon Nanotechnology Laboratory.

Researchers at the lab believe they can get around this problem by growing the desired nanotubes like crystals. By placing "seed" nanotubes in a laboratory reactor and pumping in carbon monoxide, or some other source of carbon, they hope to create perfect -- and long -- armchair nanotubes every time. Twisting these together will then produce a quantum wire like the one NASA wants.

"This is not a straightforward applied-research project where we know it's been done and we need to scale it up," said Smalley. "We're going to do major pioneering in this process."

NASA hopes to outfit future spacecraft with quantum wires rather than heavier copper wires. Doing so could shave critical pounds, which would save money on fuel and, ultimately, allow the craft to go farther into space.

Some engineers have also talked about building a 62,000-mile-long tether made of nanotubes for a SPACE ELAVATOR that would carry astronauts and cargo into orbit.

"As we look forward to going to the moon, Mars and beyond, (nanotubes) will certainly, in my view, be a key part of doing that," said Howell.

Carbon nanotubes may benefit other industries, too. For instance, in 2003, NASA researchers described in the journal Applied Physics Letters how circuit manufacturers might create faster processors by replacing copper interconnects with nanotubes, which are more resistant to heat.

Other researchers have explored using carbon nanotubes to build next-generation flat-panel displays. The displays might feature a tiny nanotube-based electron gun behind each pixel rather than using a single gun for the entire display, like traditional cathode ray tube monitors.

In fact, carbon nanotubes seem so versatile that scientists believe they may one day end up in everything from batteries to military armor -- provided that they can be produced easily and cheaply.

"There is a new miracle polymer to be developed," said Smalley. "I believe this is a tremendously important objective for modern society."

Go NASA nerds! calmdown:


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"....And, of course, you can invite someone to control your vibrator while you control theirs....."

Frozen Light processors > super wire

Re: NASA Funds 'Miracle Polymer'
 

[quote="mr.miyagi":a21b4]

The researchers have no easy task before them. To succeed, they will first have to devise a way to produce perfect carbon nanotubes on demand. After that they'll have to decide if sending GroundForce1's EightAce into space to make love to small aliens is really such a good idea...
[/quote:a21b4]i caught it! biggrin:

Maybe its just me, but wouldnt wires so small be:

A: Hard to work with given the fact you can barly see them.
B: Fragile given there microscopic size
C: Time consuming and costly to "grow" for the hundreds of miles worth of wires that are in a spacecraft.

[quote:7e72c]Some engineers have also talked about building a 62,000-mile-long tether made of nanotubes for a SPACE ELAVATOR that would carry astronauts and cargo into orbit. [/quote:7e72c]

that would be cool to see rock:

Good. Copper is a horrible conductor.

Gordon Cooper was black?

Sorry but copper is a good conductor as it gives off and picks up electrons better than most other non precious metals.

I agree

from what I've read/heard, copper is possibly the best conductor

Precious metals like gold and platinum are much better conductors than copper, but are not cost efficient to use for general purposes.

The size of the strands shouldn't be a problem to someone who works with fiber optic cable.

Ok, fine, it's better than other comparable metals, however, this doens't mean it's a good conductor.

My point was that electrons traveling through copper have to go through impurities, friction, collisions and other things that slow it down. Thus, during the process of travel, the signal may have to be boosted to keep it going. Copper is also required in large amounts to carry high volumes of information.

You do have a point, that's why continuing research into better conductors is desirable.

This is good news and I can't wait to see what comes out of it......Refering to the second link.... happy:

For high voltage, cooper is the best overall thing that can be used in bulk at a reasonable price. Transmission cables however use aluminum conductors or a mixture of cooper and aluminum because of weight issues.

I think silver is more conductive than copper IIRC, but it costs more..