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Researchers Create DNA Logic Circuits That Work in Test Tubes

Dec 08, 2006 | User rating: 4.5 / 5 after 11 vote(s) | pda version

Computers and liquids are not very compatible, as many a careless coffee-drinking laptop owner has discovered. But a new breakthrough by researchers at the California Institute of Technology could result in future logic circuits ...


Strontium atomic clock demonstrates super-fine 'ticks'

Nov 30, 2006 | User rating: 4.7 / 5 after 19 vote(s) | pda version

Using an ultra-stable laser to manipulate strontium atoms trapped in a "lattice" made of light, scientists at JILA have demonstrated the capability to produce the most precise "ticks" ever recorded in an optical ...


Cosmologists expose flaws in anthropic reasoning

Nov 28, 2006 | User rating: 3.7 / 5 after 79 vote(s) | pda version

Many scientists never liked it anyway, and now Glenn Starkman from Oxford/Case Western and Roberto Trotta from Oxford show that too many details�and too many unknowns�mean that anthropic reasoning gives inconsistent ...


Rice as a source of electricity

Nov 21, 2006 | User rating: 3.6 / 5 after 8 vote(s) | pda version

Rice yields an abundance of biowaste: Husks make up around one quarter of the weight. Only a small fraction of this is utilized, for instance, to fire distillery furnaces. Researchers at Hanoi University of Technology now ...


UMC Produces Working 45-nanometer ICs

Nov 20, 2006 | User rating: 1.5 / 5 after 4 vote(s) | pda version

UMC, a leading global semiconductor foundry, today announced that it has successfully produced functional 45-nanometer SRAM chips that feature an impressive bit cell size of less than 0.25um2. The ICs, produced using UMC's ...


All Optical Solution: Cruising the Superhighway on a Beam of Light

Nov 01, 2006 | User rating: 4.1 / 5 after 43 vote(s) | pda version

The Internet is often called the information superhighway, but the real superhighway is the optical fiber that connects computers around the world at the speed of light, according to John Badding, Penn State ...


A 'Spin-Voltaic' Effect May Enable Silicon Spintronics

Oct 18, 2006 | User rating: 4.8 / 5 after 17 vote(s) | pda version

Can conventional semiconductors learn new tricks? Igor Zutic is betting that they can. Zutic, a University at Buffalo theoretical physicist and the recipient of a prestigious National Science Foundation CAREER Award, is finding ...


IMEC demonstrates feasibility of double patterning immersion litho for 32nm node

Oct 18, 2006 | User rating: 3 / 5 after 5 vote(s) | pda version

IMEC showed in collaboration with ASML the potential of double patterning 193nm immersion lithography at 1.2NA for 32nm node Flash and logic.


DNA computing targets West Nile Virus, other deadly diseases

Oct 16, 2006 | User rating: 4.3 / 5 after 21 vote(s) | pda version

Researchers say that they have developed a DNA-based computer that could lead to faster, more accurate tests for diagnosing West Nile Virus and bird flu. Representing the first "medium-scale integrated molecular ...


Researchers develop bistable nano switch

Oct 13, 2006 | User rating: 4 / 5 after 25 vote(s) | pda version

Carbon nanotubes (CNT) have been under intense study by scientists all over the world for more than a decade and are being thought of as ideal building blocks for nanoelectromechanical systems (NEMS). A type of one-dimensional ...


New All-Optical Modulator Paves the Way to Ultrafast Communications and Computing

Oct 06, 2006 | User rating: 4.8 / 5 after 55 vote(s) | pda version

In the 1950s, a revolution began when glass and metal vacuum tubes were replaced with tiny and cheap transistors. Today, for the cost of a single vacuum tube, you can buy a computer chip with literally millions of transistors.


ZnO nanowires may lead to better chemical sensors, high-speed electronics

Sep 12, 2006 | User rating: 3.8 / 5 after 15 vote(s) | pda version

Devices for detecting dangerous substances can literally be life savers, in situations ranging from soldiers on the battlefield to luggage screeners at airports. Yet chemical sensors now available for such ...


Physicists trap, map tiny magnetic vortex

Sep 07, 2006 | User rating: 4.6 / 5 after 63 vote(s) | pda version

In a research first that could lead to a new generation of hard drives capable of storing thousands of movies per square inch, physicists at Rice University have decoded the three-dimensional structure of a tornado-like magnetic ...


Nanoscientists Create Biological Switch from Spinach Molecule

Sep 05, 2006 | User rating: 4.4 / 5 after 22 vote(s) | pda version

Nanoscientists have transformed a molecule of chlorophyll-a from spinach into a complex biological switch that has possible future applications for green energy, technology and medicine.


Shade trees fight global warming in Calif.

Sep 04, 2006 | User rating: 5 / 5 after 6 vote(s) | pda version

Sacramento, Calif., has decided that when it comes to battling global warming Mother Nature knows best and nothing is better than planting a tree.


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