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Mouse intelligence measured

August 5, 2003

Rodent general intelligence or
“g” might reveal genes for intellect.

Crossed nanotubes could form a quantum dot

August 5, 2003

A carbon-nanotube cross structure could theoretically produce quantum dots small enough to show single-electron effects at room temperature, according to researchers at Stanford University. This structure could form by self-assembly and could be a good candidate for devices such as single-electron transistors.

Molecules build a bridge to spintronics

August 5, 2003

A new generation of devices that harness the spin of electrons has moved closer. In a recent experiment, University of California at Santa Barbara researchers have transferred electron spins across molecular “bridges” between quantum dots for the first time and at room temperature.

Power from blood could lead to ‘human batteries’

August 5, 2003

Researchers in Japan are developing a method of drawing power from blood glucose, mimicking the way the body generates energy from food. Theoretically, it could allow a person to pump out 100 watts, ignoring body needs. The “bio-nano” generator could be used to run devices embedded in the body or sugar-fed robots.

A rationale for humans as power sources in The Matrix?

Holographic data storage: Light on the horizon

August 5, 2003

The first commercial holographic memory should be on the market next year. Theoretically, it’s possible to store a terabyte of data on a CD-sized disk, with transfer rate of a billion bits a second (at least 60 times faster than current DVDs).

A Business Out of Thin Air

August 4, 2003

HoloTouch has developed technology that allows users to operate equipment simply by passing a finger through a holographic image.

The system uses lasers and infrared sensors to create images that can be manipulated in the air.

Supercomputing’s New Idea Is Old One

August 4, 2003

Scientists in government, industry and academia involved in the race to build the world’s fastest computing machines are now turning their attention once again to Seymour Cray’s elegant approach to building ultra-fast computers. The designs use special hardware that to handle the long strings of numbers in complex scientific computing problems.

Cray’s revival was helped by funding from the Pentagon’s Defense Advanced Research Projects Agency to develop prototypes of… read more

VR accommodates reality

August 4, 2003

Researchers have advanced the representatiom of real objects in virtual environments by allowing real and virtual objects to coexist in a shared virtual space.

The system uses four cameras and object recognition software to determine the shapes and positions of real objects in the environment. The camera data is used to generate virtual three-dimensional shells in the shapes of the real objects, and the shells are forbidden zones for… read more

New Neurons on Demand?

August 4, 2003
The growth of new neurons in the adult brain (green) can be stopped by nitric oxide.<br />
CREDIT: F. GAGE/SALK INSTITUTE

A ubiquitous signaling molecule, nitric oxide (NO), turns off the production of new neurons in the adult brain, researchers have discovered. By shutting down this off switch, doctors may one day be able to generate new neurons in the brains of patients suffering from neurological diseases or traumatic injury.

Circuit design evolving in distributed digital world

August 4, 2003

A digital simulation of natural selection, using distributed computing in home PCs, is evolving superior electronic circuit designs.

U.S. says Windows vulnerable to attack

August 4, 2003

The Department of Homeland Security has issued an updated advisory about possible hacker attacks on computers running Microsoft operating systems.

PluggedIn: Cutting-Edge Science Creates Stain-Free Pants

August 1, 2003

Nanotechnology – the science of manipulating materials billionths of a meter wide – has emerged as a promising new field that could lead to stunning advances like molecule-sized computers, tiny cancer-fighting robots that travel the bloodstream and stain-resistant trousers in years to come.

Most Notebooks Go Wireless by 2008

August 1, 2003

By 2008, mobile workers will be largely unhooked when they’re on the road, according to a new study. Only 24 percent of notebooks PCs sold worldwide this year have embedded wireless connectivity, but that number is expected to jump to 90 percent by 2008.

General Relativity Sinks Submarine

August 1, 2003

A Brazilian physicist has resolved a paradox highlighted by Einstein’s theory of relativity, which explains how movement at close to light speed can distort space. Apparently, underwater there is some inconsistency in that theory, as the Brazilian physicist has discovered with the help of a submarine vessel. Since the density increase would sink the vessel, the submarine crew would see the opposite: water rushing past them would contract and get… read more

Unlocking the Brain’s Secrets

August 1, 2003

An international team of six scientists has been involved in scanning thousands of images of the brains of people of all ages with a range of conditions, in the hopes of creating a “map” that would reveal the mysteries of how the brain controls everything from language to movement.

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