science + technology news

Hitachi Achieves Storage Record for Disk Drives

April 3, 2005

Hitachi Global Storage Technologies plans to announce on Monday a record for storage density on a disk drive: 230 billion bits per square inch, which would make possible a desktop computer drive capable of storing a terabyte of information.

The technology is known as perpendicular recording because the tiny magnets that represent digits are placed upright, not end to end.

FAQ: Forty years of Moore’s Law

April 1, 2005

Moore’s law will likely begin to slow down to a three-year cycle in the next decade and require companies to adopt alternative technologies.

Some say the ability to shrink transistors will start to become problematic by around 2010. Others, such as Intel’s director of technology strategy, Paolo Gargini, paint a more gradual picture. Around 2015, they say, manufacturers will start to move toward hybrid chips, which combine elements of… read more

Biolaser Lights Up Stem Cells

April 1, 2005

Scientists have developed a laser that could illuminate stem cells in greater detail than ever, revealing the important steps they take to become neuron, heart or other types of cells.

‘Bionic eye’ may help reverse blindness

April 1, 2005

A 3-millimeter-wide chip designed to fit behind the retina has returned a degree of vision to blind rats, a first step towards creating a system for humans.

The patient would wear goggles mounted with a small video camera, which sends the image to a wireless wallet-sized computer for processing. The computer transmits this information to an infrared LED screen on the goggles.

The goggles reflect an infrared image… read more

Gene project would seek keys to cancer

March 31, 2005

Federal officials are planning to compile a comprehensive catalog of the genetic abnormalities that characterize cancer, in hopes of discovering important new clues about how to diagnose, prevent, and treat cancer.

The proposed Human Cancer Genome Project would be greater in scale than the Human Genome Project. Its goal: determine the DNA sequence of thousands of tumor samples. Researchers would look for mutations that give rise to cancer or… read more

Deals to Develop Fuel Cell Vehicle

March 30, 2005

General Motors and DaimlerChrysler have signed agreements with the Department of Energy to develop hydrogen fuel cell vehicles over the next five years.

Strains on Nature Are Growing, Report Says

March 30, 2005

Humans are damaging the planet at a rapid rate and raising risks of abrupt collapses in nature that could spur disease, deforestation or “dead zones” in the seas, the international Millennium Ecosystem Assessment report says.

Nanostructured iridium is model catalyst for fuel cells

March 30, 2005

A major obstacle to establishing the “hydrogen economy” is the safe and cost-effective storage and transport of hydrogen fuel.

Rutgers researchers are developing a possible solution: using iridium as a catalyst to generate hydrogen on-demand in a vehicle from liquid ammonia.

They found that heating the metal iridium in the presence of oxygen changes its shape to make uniform arrays of 5-nanometer-sized pyramids. The finely textured surface can… read more

Gene Finding with Hidden Markov Models

March 30, 2005

As more genomes are sequenced, researchers are looking to bring their computations in line with the underlying biology. They are creating software that incorporates phylogenetics, the descriptions of evolutionary distance, into the field’s favorite computational tool, the hidden Markov model (HMM).

HMMs “describe a probability distribution over an infinite number of sequences,” says Sean Eddy, associate professor at Washington University and coauthor of the textbook, Biological Sequence Analysis: Probabilistic… read more

Shape-Shifting Robot Nanotech Swarms on Mars

March 30, 2005

NASA Astronaut Journal, Mars, 2034:

The latest spacecraft sent to us is more a living thing than a robot. Shortly after launch from Earth, the tiny capsule blossomed into a sail and rode the solar wind to Mars. On the way, a meteoroid punched a hole in the sail, but surrounding material flowed in and closed the tear.

Upon arrival, the spacecraft shrunk more than 100 times its… read more

Only the ethical need apply

March 30, 2005

While artificial intelligence can perform numerous job functions, it brings no ethical considerations to bear on the tasks performed — a skill that futurist Richard Samson predicts will actually become more crucial as the world increases its reliance on technology.

Nanotech Gadgets to Be Built by Algae?

March 30, 2005
Marine diatom silica exoskeletons

Oregon State University researchers hope to use the diatom algaie’s shell-building process to manufacture nanotech materials, incorporating elements such as silicon, germanium, titanium, and gallium into the diatoms’ silica shells.

Products may include flexible computer screens, cheap and efficient solar cells, filtration devices, and drug delivery vehicles that can target, for example, a single cancer cell.

Newest Chip Is Combination of Fiber Optics and Electronics

March 29, 2005

Luxtera has announced a new class of silicon chips with the potential to blend the low-cost manufacturing prowess of the semiconductor world with the ultrahigh-speed potential of laser optical networking.

The convergence is expected to have a major impact on the computing and communications industries, both in the design of future computers and on drastically less expensive networks that will make applications of such fiber optic networks to homes… read more

Grand Odyssey Futurecast System — You Star!

March 29, 2005

Visitors to the Space Child Adventure Grand Odyssey, an animated film showing at the Aichi Expo 2005 in Japan, get a high-resolution digital full-face scan that is edited into the “film” in real time.

Every person who enters the theater gets a role; a Toshiba supercomputer inserts the necessary information and presents the one-time-only film.

Similar technology can be found in John Brunner’s Stand on Zanzibar, Neil Stephenson’s… read more

Oil and water mix for better drugs

March 29, 2005

Oil and water will mix — providing all the gas dissolved in the liquids is removed first — and the technique can be used to mix fat-soluble drugs with water.

That could do away with additives and their adverse reactions, as well as simplifying drug production.

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