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10. Why is NASA developing uses for carbon nanotubes? (2:11 minutes)
Dr. Meyya Meyyappan: "I just want to point out that NASA, and NASA Ames, in particular, that we do not work in silicon-based computer technology. And in that sense actually we did not set out to investigate carbon nanotube as an interconnect. Our goal is actually to look at long-term prospects in computer chips, and data storage and so on and so forth because that NASA has got some unique needs and let me give you just one need – what we call autonomous, or thinking spacecraft. And so, this is the kind of spacecraft which will have enough of computing power to make all the decisions at the spacecraft level as opposed to relying on Houston for all the control and instructions, and so on, and so forth. In order for that to happen, we need at least million times computing power than what is available today in the market. But also in very small packages – perhaps at the laptop level because we cannot afford to lift huge mainframe computers to go to Mars or Jupiter. So, for that reason at NASA looks at new computing and data storage technologies – novel, innovative ones – which may pay off in 15 or 20 years. So, for that carbon nanotube is a candidate. And carbon nanotube in that case would replace silicon itself. So, while we were studying that, we stumbled upon a way to make use of the same carbon nanotube in the current, existing silicon technology. So, this is very interesting, and ah, you know, very gratifying technology that we were able to produce that can help the silicon industry to go on as long as, you know, perhaps, another 10 or 12 years."
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