science + technology news

A Vision of Terror

May 11, 2005

A new generation of software called Starlight 3.0, developed for the Department of Homeland Security by the Pacific Northwest National Laboratory (PNNL), can unravel the complex web of relationships between people, places, and events. And other new software can even provide answers to unasked questions.

A Web of Sensors, Taking Earth’s Pulse

May 11, 2005

The rapid miniaturization of technologies behind cameras, cellphones and wireless computers is allowing scientists to build innovative networks of small sensors that they say will produce a new era of ecological insight and, in time, help save the planet.

New research raises questions about buckyballs and the environment

May 10, 2005

Rice University scientists have found that buckyballs dissolve in water and could have a negative impact on soil bacteria. The findings raise new questions about how the nanoparticles might behave in the environment and how they should be regulated.

The found that buckyballs combine into unusual nano-sized clumps — which they refer to as “nano-C60″ — that are about 10 orders of magnitude more soluble in water than the… read more

Simple Casting Technique To Create Ordered Nanocarbons

May 10, 2005

Carnegie Mellon University scientists have harnessed an experimental technology to produce polymer films with long-range-ordered nanostructure and easily convert them into highly ordered “nanocarbon arrays.”

Called zone casting, this technology could revolutionize the way industrial nanoelectronic components are made.

They used “block copolymers,” which are made of long-chain molecules with distinct “blocks” of chemically different repeating units. To create self-assembling nanostructures from block copolymers, they used molecules with… read more

Motorola builds nanotube-based display

May 9, 2005

Motorola has built a working prototype of a new flat-panel color display that uses carbon nanotubes.

The new displays are much less expensive than CRTs, they respond as quickly, their colors are almost as good, they can be viewed from a wide range of angles, and they are bright enough to be seen in daylight.

Chip Maker Develops Denser Storage Method

May 9, 2005

Matrix Semiconductor is expected to announce on Tuesday that its approach – storing data in an array of circuits stacked in four levels – had yielded one-gigabit chips that are 10 percent smaller than its previous version and have twice the memory of the original 512-megabit chips.

Time Travelers to Meet in Not Too Distant Future

May 6, 2005

MIT students have organized what they call the first convention for time travelers on May 7, 2005, 10:00pm EDT.

They contend that theirs is the only time traveler convention the world needs, because people from the future can travel to it anytime they want.

To set the mood, organizers plan to display a DeLorean – the sleek but short-lived 1980′s car that was the time-traveling vehicle… read more

New drug offers jitter-free mental boost

May 6, 2005

A new class of drug may increase alertness without any of the jitteriness of over-stimulation.

A compound dubbed CX717, a member of the new class called ampakines, significantly improved performance on tests of memory, attention, alertness, reaction time and problem solving in healthy men deprived of sleep.

Ampakines work by binding to AMPA-type glutamate receptors in the brain. This boosts the activity of glutamate, a neurotransmitter, and makes… read more

Modified mice enjoy one-fifth more life

May 6, 2005

A mouse with the ability to mop up free radicals at the cellular level – and live longer as a result – has been created by scientists at the University of Washington.

The research is a boost for the free radical theory of ageing.

The transgenic mice created produce higher-than-normal levels of the antioxidant enzyme catalase. Cells use catalase to convert damaging hydrogen peroxide to harmless water and… read more

Earth Has Become Brighter, but No One Is Sure Why

May 6, 2005

Reversing a decades-long trend toward “global dimming,” Earth’s surface has become brighter since 1990, scientists are reporting today.

The brightening means that more sunlight – and thus more heat – is reaching the ground. That could partly explain the record-high global temperatures reported in the late 1990′s, and it could accelerate the planet’s warming trend.

Motor Transport in Bionano Systems

May 4, 2005

Scientists from the Max Planck Institute of Colloids and Interfaces in Potsdam and from the University of Amsterdam have now modelled and simulated the motor traffic for different compartment geometries and filament arrangements, and have determined the optimal conditions for the transport of nanocargo in these systems.

Biomimetic systems based on molecular motors and filaments have many potential applications in bionanotechnology, pharmacology, and medicine.

During the next couple… read more

Memory mimic aids reading

May 4, 2005

Researchers from the Palo Alto Research Center (PARC) have devised ScentHighlights, software that leverages the way the brain models words to help speed the process of reading or skimming through digitized text.

The software highlights portions of text in a way that makes it cognitively easier for the user to find what she is looking for.

ScentHighlights expands on a set of topics of interest supplied by a… read more

Robots to help out blind shoppers

May 4, 2005

Computer scientists have developed a robot that could help blind people to shop or find their way around large buildings.

It uses radio frequency identification tags to locate items and a laser range finder to avoid collisions.

‘Personal supercomputer’ goes on sale

May 4, 2005

The DC-96 computer, developed by Orion Multisystems, offers a peak computing power of 230 gigaflops and 192 gigabytes of memory for $100,000.

Bandwidth Advance Hints at Future Beyond Wi-Fi

May 4, 2005

With 500 megabits/sec and higher capacity, ultrawideband (UWB) will eventually replace the ubiquitous Wi-Fi wireless standard.

The future could include wireless home networks that simultaneously interconnect multiple screens, computers and audio and video streams.

close and return to Home