science + technology news

FBI warns of Valentine’s Day ‘Storm’

February 14, 2008

“With the holiday approaching, be on the lookout for spam e-mails spreading the Storm Worm malicious software,” the FBI said yin an alert posted to the home page of its Web site Tuesday.

“The Storm Worm virus has capitalized on various holidays in the last year by sending millions of e-mails advertising an e-card link within the text of the spam e-mail. Valentine’s Day has been identified as the… read more

Buckyballs may diagnose and treat brain tumors

October 19, 2005

Virginia Commonwealth University and Virginia Tech researchers are developing metal-filled buckyballs for use as a diagnostic and therapeutic agent that may boost the sensitivity of MRI techniques and improve the diagnosis and treatment of brain tumors.

They found that the nanoparticles highlighted the tumors more effectively than existing imaging agents. They provide improved brain tissue differentiation and a dark outline of the tumor margin, making surgical removal more precise.… read more

Tiny autonomous robotic vehicles could swarm into hazardous situations

May 17, 2011

Tiny robots work by themselves and communicate only with one another to transmit detailed terrain maps (credit: Gary Meek)

Autonomous robotic vehicles with advanced collaborative exploration and mapping capabilities have been developed by a team from the Georgia Institute of Technology, the University of Pennsylvania, and the California Institute of Technology/Jet Propulsion Laboratory (JPL).

The wheeled robots measure about one foot square. The researchers are working toward platforms small enough to be held in the palm of one hand.… read more

Biology aiding nanotech researchers

December 12, 2002

The latest avenue in nanotechnology involves harnessing biological structures and processes, scientists said Wednesday at a National Science Foundation conference.

How to dismantle a nuclear bomb

July 23, 2009

The nuclear weapon is carefully lifted out of a large container and moved onto the floor. Two engineers use an electric screwdriver to open up a side compartment and remove the “physics package” containing the sensitive parts of the bomb….

Human stem cells aid stroke recovery in rats

February 20, 2008

Neural cells derived from human embryonic stem cells helped repair stroke-related damage in the brains of rats and led to improvements in their physical abilities, according to researchers at the Stanford University School of Medicine.

This study marks the first time researchers have used human embryonic stem cells to generate neural cells that grow well in the lab, improve a rat’s physical abilities and consistently don’t form tumors when… read more

Superluminal Ultrasound?

November 2, 2005

The group velocity of an ultrasound wave could theoretically jump by five orders of magnitude over its ordinary values and exceed c (the speed of light), when pulses of high-frequency sound strike a mixture of water and tiny (approximately 0.1-mm diameter) plastic spheres.

New Billboards Sample Radios as Cars Go By, Then Adjust

December 29, 2002

A Sacramento-based entrepreneur has erected ten billboards with programmable video, text, and images that can be adjusted based on the stations that drivers are listening to.

The technology works by detecting radiation leakage that is emitted when antennas are tuned to specific radio stations.

‘Rosetta stone’ offers digital lifeline

July 31, 2009

The “Digital Rosetta Stone” would store data laser-etched onto silicon discs, and protected from oxygen and humidity, for 1000 years, a team led by Professor Tadahiro Kuroda of Tokyo’s Keio University has proposed.

Asteroid-tracking proposal wins $25,000 prize

February 27, 2008

The Planetary Society has announced the $25,000 prize winner of a competition to design a mission to track asteroid Apophis and determine whether it poses a threat to Earth.

The SpaceWorks’ “Foresight” mission would put a small spacecraft in orbit around Apophis, where it would send pictures and data about the asteroid back to Earth to determine its position relative to Earth more accurately. That would help determine whether… read more

PET Imaging Reveals the Immune System at Work

November 14, 2005

Researchers at Howard Hughes Medical Institute (HHMI) at the University of California Los Angeles have taken a key step toward noninvasively viewing how a cell confronts disease by using positron emission tomography (PET) to observe key cells of the immune system as they responded to tumors in mice.

In their experiments, they were able to see the lymph nodes, which resided at some distance from the tumor, spring into… read more

Robots That Suck

January 17, 2003

Have they finally come out with a robot for the rest of us? iRobot’s Roomba, a robot designed for vacuuming, rises above the level of mere gadget.

In a Digital Future, Textbooks Are History

August 10, 2009

Textbooks may soon be replaced by digital textbooks and online courses, or even by lessons assembled from the wealth of free open-source courseware, educational games, videos, blogs, Twitter feeds, and projects on the Web.

Gene Map Becomes a Luxury Item

March 4, 2008

A second person has announced he’ll pay a private company to sequence his entire genome for $350,000.

He hopes to persuade others to participate and add to the collective knowledge about the human genome at a time when personal sequencing is not yet inexpensive.

Scientists have so far unraveled only four completed human genome sequences.

See Also The Race to Read Genomes on a Shoestring,read more

close and return to Home