Recently Added Most commented

Sleep selectively stores useful memories

February 2, 2011

After a good night’s sleep, people remember information better when they know it will be useful in the future, according to a new study in the Feb. 2 issue of¬†The Journal of Neuroscience. The findings suggest that the brain evaluates memories during sleep and preferentially retains the ones that are most relevant.

Humans take in large amounts of information every day. Most is encoded into memories by the brain… read more

Scientists build DNA nano-devices

January 4, 2002

New York University researchers claim to have taken a major step in building more controllable machines from DNA. The researchers say that the new device may help build the foundation for the development of sophisticated machines at a molecular scale, ultimately evolving to the development of nano-robots that might some day build new molecules, computer circuits or fight infectious diseases.
The research team was led by NYU chemistry professor Nadrian… read more

Microbes turn electricity directly to methane

March 31, 2009

Methanogenic microorganisms can take electricity and directly convert carbon dioxide and water to methane, producing a portable energy source with a potentially neutral carbon footprint, according to Penn State engineers.

‘Greener,’ low-cost transistor heralds advance in flexible electronics

September 29, 2014

This transparent transistor, which functions even when wrapped around a thin pen, could help make flexible electronics widely accessible (credit: American Chemical Society)

As LG demonstrated this summer with its new 18-inch partially flexible curved screen, the next generation of roll-up displays may be tantalizingly close.

Now UCLA and Yonsei University researchers¬†have taken the next step, with an inexpensive, simple new way to make transparent, flexible transistors that could help bring roll-up smartphones with see-through displays and other bendable gadgets to consumers in just a few years, as they reported… read more

Scientists Claim to Clone Monkey Embryos

November 14, 2007

Oregon National Primate Research Center scientists say they’ve reached the long-sought goal of cloning monkey embryos and extracting stem cells from them, a potentially major step toward doing the same thing in people.

In cloning to obtain stem cells, DNA from an adult animal is inserted into an unfertilized egg. The egg is grown into an early embryo, from which stem cells are extracted. These stem cells, and the… read more

Dolphins and primates have developed similar high-level cognitive abilities

April 6, 2005

Dolphins and primates — and their vastly different brains — both have developed similar high-level cognitive abilities, says Emory University neuroscientist and behavioral biologist Lori Marino.

Recent research by Marino and her colleagues has traced the changing encephalization, or relative brain size, of cetaceans during the past 47 million years by using magnetic resonance imaging and histological studies of the fossil record. While modern humans have brains that are… read more

Is human evolution finally over?

February 4, 2002

A group of biologists believe a Western lifestyle now protects humanity from the forces that used to shape Homo sapiens — virtually everybody’s genes are making it to the next generation, not only those who are best adapted to their environments.
In addition, human populations are now being constantly mixed, again producing a blending that blocks evolutionary change.

Peter Ward, of the University of Washington, in his book, Future… read more

Nanoscale changes rise to macro importance in a key electronics material

April 9, 2009

A new National Institute of Standards and Technology study of silver niobate opens the door to improved electronic components for smaller, higher performance wireless devices and shows how subtle nanoscale features of a material can give rise to major changes in its physical properties.

During cooling, oxygen atoms cause the octahedral structure to rotate slightly, generating strain that partially locks the niobium atoms into off-centered positions, giving rise to… read more

Study: Internet could run out of capacity in two years

November 20, 2007

A flood of new video and other Web content could overwhelm the Internet by 2010 unless backbone providers invest up to US$137 billion in new capacity, more than double what service providers plan to invest, according to a study by Nemertes Research Group.

Internet users will create 161 exabytes (quintillion bytes) of new data this year, they said.

The study is the first to “apply Moore’s Law (or… read more

Kurzweil Educational Systems acquired by Cambium Learning

April 18, 2005

Kurzweil Educational Systems Inc. has been acquired by Cambrium Learning Inc. in a move to support underserved student populations. The purchase price was over $20 million.

Kurzweil Educational Systems, founded by Ray Kurzweil and Mike Sokol in 1996, is the “leader in print-to-speech reading systems for people with reading disabilities such as dyslexia and for the blind,” says Sokol.

The Kurzweil 3000 reads printed material with natural sounding… read more

Pill reminders from robot pets

February 20, 2002

In the future, the elderly could be reminded to take medication by a computerized pet. The Pill Pets are brightly coloured, cuddly toys made of silicon, with a computerised screen that gives instructions on taking medication,

For the Pill Pets to survive, they have to be told their reminders to take medication are being acted on.

Researchers at the Massachusetts Institute of Technology’s (MIT) Ageing Lab in Boston… read more

Transformers: Protecting pedestrians from killer cars

April 16, 2009

Researchers at UK-based Cranfield University have developed an experimental system for cars that detects that it’s about to hit a pedestrian and automatically releases a giant airbag in front of the windscreen.

Researchers at Graz University of Technology in Austria found in simulations that a truck front using a smooth sloping surface with central bulge reduces the likelihood of a pedestrian involved in a front-end accident being run over… read more

Study Details How U.S. Could Cut 28% of Greenhouse Gases

November 30, 2007

The United States could shave as much as 28 percent off the amount of greenhouse gases it emits at fairly modest cost and with only small technology innovations, according to a new report from McKinsey & Company.

The innovations include changes in the lighting, heating and cooling of buildings, for example, that would reduce carbon dioxide emissions from the burning of fossil fuels even as they save money.

‘All-optical’ switch could advance light-based telecommunications

April 29, 2005

Duke University physicists have developed a switching technique that uses a very weak laser beam to control a much stronger beam. The achievement could make optical telecommunications devices perform far more efficiently.

The report in Science also suggests possible techniques for using switching beams as weak as single photons, making them useful for quantum computing.

Duke University news release

Nanotube separation method promises to advance imaging, catalysis, and fuel cells

February 24, 2011

Dispersion of single-walled carbon nanotubes (Chemical Communications)

A lab at Rice University has developed an efficient method to disperse nanotubes in a way that allows inorganic metal complexes with different functionalities to remain in close contact with single-walled carbon nanotubes while keeping them separated in a solution.

That separation is critical to manufacturers who want to spin fiber from nanotubes, or mix them into composite materials for strength or to take advantage of their electrical properties.… read more

close and return to Home