Cooling technology and ultimate limits of computing

In Dec, 2005, Fujitsu announced that they were able to connect carbon nanotube bumps to the miniature electrode of a high power transistor. Carbon nanotubes have thermal conductivity of 1400W/(m-K) – a level much higher than that of metal(4), and because it is possible to connect carbon nanotube-based bumps very near to the heat-generating miniature …

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biological motor sorts molecules on a chip

This seems like a significant development for transitional systems. Researchers from Delft University of Technology’s Kavli Institute of Nanoscience have discovered how to use the motors of biological cells in extremely small channels on a chip. Based on this, they built a transport system that uses electrical charges to direct the molecules individually. To demonstrate …

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Other tech: Revving up the immune system in mice can kill cancer cells

White blood cells from a unique breed of cancer-resistant mice have cured advanced cancers in normal mice, researchers report. When injected the immune cells sought out and killed existing tumours and also protected the mice against lethal doses of new, highly aggressive cancers. The “resistant-cell therapy” appears to work without toxic side effects, and the …

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Other tech: making wind power even more affordable

Floating wind farms placed far offshore could lead to affordable electricity — without cluttering the view. GE has announced a $27 million partnership with the U.S. Department of Energy to develop 5-7 megawatt turbines by 2009, each of which could power well over 1,000 homes. Supplanting the company’s current 3.6 megawatt turbines, these giant energy …

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Other tech: Real time info integrated with maps

This is technology on the path to David Brin’s transparent society Researchers are working on a system that allows sensors to track information and create up-to-date, searchable online maps The project, which is called SenseWeb, will someday enable people to browse online maps for up-to-the-minute information about local gas prices, traffic flows, restaurant wait times, …

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Nanomaterials advance – nanofermentation

Barriers to commercializing high-quality nanomaterials useful for an array of applications could tumble because of a process invented at Oak Ridge National Laboratory. NanoFermentation represents a fundamentally new approach for producing extremely fine, uniform and highly crystalline powders useful for magnetic media, ferrofluids, xerographic toner, catalysts, pigments, water treatment and coatings. The process works at …

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My essay Considering Military and Ethical Implications of Nanofactory-Level Nanotechnology at wise-nano

My essay looks at some existing trends in military capability and technology development, and considers the impact of nanofactory-level nanotechnology (NN). The essay is also at kurzweilai.net A nanofactory is a proposed manufacturing system that could be built if molecularly precise manufacturing technology is developed. Current projections indicate that a nanofactory should be able to …

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other tech: powerful artificial eyes based on insect eyes

U.S. scientists say they’ve created super-powerful artificial eyes inspired by those of dragonflies and other insects. The artificial eyes are the first hemispherical, three-dimensional optical systems to integrate microlens arrays — thousands of tiny lenses packed side by side — with self-aligned, self-written “waveguides,” which are light-conducting channels created by beams of light, Lee explained. …

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