science + technology news

Camera sees behind objects

June 2, 2005

Researchers from Stanford University and Cornell University have put together a projector-camera system that can read a playing card that is facing away from the camera.

The dual-photography system gains information from a subject by analyzing the way projected patterns of light bounce off it.

Digital Lock? Try a Hairpin

May 28, 2002

Security systems in several areas from music copying to fingerprint readers and smart cards are proving vulnerable to defeat by basic household items.

2 Billion Infected? WHO Stokes Swine Flu Fear

May 8, 2009

The World Health Organization may have inadvertently triggered a new wave of fear over the threat of a swine flu pandemic today by suggesting that up to 2 billion people could be infected if the current outbreak worsens.

WHO chief Keiji Fukuda quickly noted to reporters that he was making statement based on data from past pandemics and was not a predicting what would happen with the current swine… read more

‘Nanocavity’ Sensor Detects Virus-Sized Particles

December 21, 2007
Nanocavity sensor (Philippe Fauchet)

University of Rochester scientists have created a nanoscale device capable of detecting one quadrillionth of a gram of biological matter, or about the size of certain viruses.

In the future, the sensor may be able to detect influenza, severe acute respiratory syndrome (SARS), bird flu, and other viruses.

The sensor is a hexagonal array of tiny cavities, each 240 nanometers in diameter, carved into a very… read more

Patching the Body With Fabric From Protein

June 21, 2005

Researchers are working to create replacement human tissue from a naturally occurring protein, elastin.

In animal studies financed by the Army, Dr. Kenton Gregory, director of the Oregon Medical Laser Center, has succeeded in patching what would usually be fatal wounds to the gastrointestinal tract and other organs with living tissue that is accepted by the body and that eventually becomes part of the organ itself.

“We are… read more

Sizing Up the Silicon Problem After the Quake

March 22, 2011

Plant shutdowns in Japan have halted production in factories accounting for 25 percent of the world’s silicon wafers used to make computer chips, according to a report released Monday by the research firm IHS iSuppli.

The Shin-Etsu plant, according to IHS iSuppli, produces 20 percent of the raw wafers used by semiconductor makers worldwide.

Another shuttered wafer factory in Utsunomiya, owned by MEMC Electronic Materials Inc., accounts… read more

Nanotech: Big Dreams, Small Steps

June 24, 2002

Diagnostic tools and sensors for bioscience and materials to enhance the fabrication of complex materials (such as gene chips) are the most likely nantechnology products to emerge in the next five years, according to experts.These will followed by diagnostic technologies to help researchers better understand and measure nanoscale interactions, mainly in biotech, then nanotherapeutic devices that will carry stores of drugs through the blood stream, and further off, nanoscale electronics.

Graphene Yields Secrets to Its Extraordinary Properties

May 15, 2009

Electrons behave like they don’t have mass in graphene, explaining why electrons are more than 100 times more mobile in graphene than in silicon, Georgia Institute of Technology and the National Institute of Standards and Technology reseachers have found.

Graphene’s exotic behaviors present intriguing prospects for future technologies, including high-speed, graphene-based electronics that might replace today’s silicon-based integrated circuits and other devices.

The Year in Robots

December 31, 2007

Robots made significant advances in 2007.

In the 2007 DARPA Urban Challenge, autonomous vehicles demonstrated their abilities in changing lanes, merging onto roadways amidst fast-moving traffic, and traversing busy intersections.

Robots also became more humanoid. Toyota and Honda introduced advanced robots capable of playing music, serving tea, pouring beer, and putting out fires, while children treated the new QRIO–programmed to wave, dance, sit, and stand–more like a peer… read more

How cells with damaged DNA alert the immune system

July 6, 2005

University of California, Berkeley researchers have found that damage to a cell’s DNA sets off a chain reaction that leads to the increased expression of a marker recognized by the body’s immune system, allowing it to differentiate cells that are cancerous from those that are healthy and attack them.

Cells with damaged DNA can also involve other cells in the fight, triggering a mechanism that signals other cells –… read more

It Slices! It Dices! Nanotube Struts Its Stuff

July 16, 2002

Nanotubes can be processed to acquire remarkable properties: fibers thinner than a human hair that can be woven as a cloth or into a 100-times stronger muscle, molecular-scale electronic circuits, low-cost TV displays, X-ray sources, heat sinks, and microscopic gears.

Spielberg: Games consoles doomed

May 21, 2009

Steven Spielberg has suggested that game consoles will one day be replaced by in-home virtual reality entertainment.

New laser probe identifies brain cancer cells in real time

Promises to improves tumor surgeries and extend survival times for brain cancer patients
February 16, 2015

The image depicts a 3D rendering of the brain, with the cancer detectable on T1- and T2-weighted MRI (magnetic resonance imaging) in red and yellow respectively. The bright points indicate cancer detected using Raman spectroscopy (probe measurements were made at these points), as far as 1cm beyond what is detectable using MRI, and the actual cancer cells are depicted conceptually in the pop out. By detecting these invasive cancer cells, we can provide the surgeon with a tool to allow for more complete resection and thereby improve patient survival. (credit: Montreal Neurological Institute and Hospital - The Neuro)

A new intraoperative handheld probe for cancer-cell-detection enables surgeons, for the first time, to detect more than 92% of invasive brain cancer cells in real time during surgery, according to its developers at the Montreal Neurological Institute and Hospital – The Neuro, McGill University MUHC, and Polytechnique Montréal.

“Often it is impossible to visually distinguish cancer from normal brain, so invasive brain cancer cells frequently remain after surgery, leading… read more

Napkin PC Enables High-Tech Doodling

January 7, 2008

Designer Avery Holleman has developed the concept of a Napkin PC, a device that uses e-paper and radio frequency (RF) technology to enable creative groups to collaborate more effectively.

The technology includes a “napkin” holder filled with rewritable e-paper napkins, as well as a place for colored pens. When someone gets an inspiration, they simply grab a napkin and start doodling with one of the pens. The pen uses… read more

Super-fast broadband coming via cable?

July 21, 2005

By using Ethernet within cable TV networks, in 2006 the speed of broadband internet over cable TV could reach 100 megabits per second, claims a Finnish technology company.

The new technique for increasing transmission speeds over cable is undergoing field trials in the Netherlands.

close and return to Home