science + technology news

Physicists control the flip of electron spin

May 30, 2005

Physicists have found a way to change the direction of the spin of an electron with an applied voltage.

They were able to manipulate how long it would take for the electron to flip its spin and emit a photon – from one to 20 nanoseconds.

The ability to control the spin of the electron help determine the properties of the photon, which in turn could have implications… read more

Hello Kitty, Hello Clone

May 30, 2005

Genetic Savings and Clone will create a clone cat for $32,000 and plans to produce its first cloned dog later this year.

Printing press spells out bugs’ behaviour

May 30, 2005

The world’s first bacterial printing press will print live bacteria onto solid surfaces in precise patterns, a technique that may help explain how bacteria influence each other spatially.

Understanding these relationships will help find ways of thwarting their attacks and using them to clean up pollutants.

Intel May Combine Silicon with Carbon Nanotubes

May 30, 2005

The Intel Research Strategic Research Project is evaluating the use of nanotubes and nanowires in future transistors.

Rise of the Plagiosphere

May 27, 2005

Emerging technologies are causing a shift in our mental ecology, one that will turn our culture into the plagiosphere: we look at our ideas with less wonder, and with a greater sense that others have already noted what we’re seeing for the first time.

The plagiosphere is arising from three movements: Web indexing, text matching, and paraphrase detection.

Nanoscale light tricks promise huge DVD storage

May 27, 2005

A patent issued to Iomega describes a disc that could store almost a terabyte of data — 40 to 100 times more information than a conventional DVD.

Iomega’s proposed Articulated Optical Digital Versatile Disc (AO-DVD) technology would use sub-wavelength surface bumps that slope at slightly different angles. This could be used to encode up to 100 times more information. The angles would be detected by analyzing light after it… read more

Attaching amino acids to electronic device materials

May 26, 2005

Researchers at Lucent Technologies’ Bell Laboratories has tested the adhesion of amino acids to semiconductors, metals and insulators used in electronic devices. The team used their results to design an inorganic nanostructure that selectively bound to a particular primary peptide sequence.

Their results could have applications ranging from biomolecular detection to biomolecular manipulation and basic biological molecule studies, such as X-ray analysis of proteins or intracellular peptide assays.

Scientists coax gold particles to emit light strong enough to view single nanoparticles

May 25, 2005

Researchers have demonstrated that gold particles comparable in size to a molecule can be induced to emit light so strongly that it is readily possible to observe a single nanoparticle, using a technique called multiphoton absorption induced luminescence.

This could allow for tracking a single molecule of a drug in a cell or other biological sample.

Other advantages of the technique are that the gold particles can be… read more

Future Teller

May 25, 2005

Doctors tell us what’s wrong with our bodies today. Computer scientist Astro Teller says his BodyMedia devices and software will predict what is going wrong tomorrow.

Within a year, Teller expects them to have ten times their current store of data, enough, he says, to write programs that may predict when someone will suffer a cold, epileptic fit or heart attack. “If it’s true for just one case,” he… read more

Hackers Holding Computer Files ‘Hostage’

May 25, 2005

The latest threat to computer users doesn’t destroy data or steal passwords — it encrypts a person’s electronic documents, effectively holding them hostage, and demands $200 over the Internet for the digital keys to unlock the files.

House Approves a Stem Cell Research Bill Opposed by Bush

May 25, 2005

The House passed a bill on Tuesday to expand federal financing for embryonic stem cell research, defying a veto threat from President Bush.

New planet found in Milky Way

May 25, 2005

Astronomers have found a massive gaseous planet about 1000 times the size of Earth and about halfway to the center of the galaxy, or about 25,000 light years away.

The project used a little-known technique called micro-lensing — using the gravitational pull of a star to act as a giant lens — to help astronomers to look for new planets.

Light gun fires photons one by one

May 25, 2005

The first photon gun capable of firing single particles of light over optical fibers was unveiled on Tuesday.

Since quantum encryption works only if the key is sent using individual photons, the breakthrough may remove one of the final obstacles keeping perfectly secure messages from being sent over standard telephone fibers.

Researchers at Toshiba’s Cambridge Research Laboratory in the UK have developed a light-emitting diode that produces up… read more

The 2020 vision of robotic assistants unveiled

May 25, 2005

Household companions, android medics and robot entertainers of the future will be showcased at the Prototype Robot Exhibition in Japan.

Earth-to-Virtual Earth

May 25, 2005

Microsoft has previewed a future MSN service called Virtual Earth that’s designed to be a deeply immersive local search experience.

Users will be able to map a particular location and then search local listings for businesses nearby. Eventually, they’ll be able to click on a listing and get more information about the business.

The MSN Virtual Earth announcement followed a preview of Google Earth last Friday. Google Earth… read more

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