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Multiview 3D photography made simple

June 24, 2013

Because a light-field camera captures information about not only the intensity of light rays but also their angle of arrival, the images it produces can be refocused later (credit: Kshitij Marwah)

A new technique enables the conversion of an ordinary camera into a light-field camera capable of recording high-resolution, multiperspective images.

Lytro photograph: click to refocus, double-click to zoom
(credit: Amara D. Angelica)

Computational photography is the use of clever light-gathering tricks and sophisticated algorithms to extract more information from the visual environment than traditional cameras can.

The first commercial application of computational photography is… read more

Silicon becomes a superconductor

November 23, 2006

By substituting 9 percent of the silicon atoms with boron atoms, Physicists in France have found that the resistance of the material drops sharply when cooled below 0.35 K.

Videos of 28th Chaos Communication Congress talks

January 4, 2012


Videos of the 28th Chaos Communication Congress (28C3) are now available.

The four-day conference on technology, society, and utopia, offered  lectures and workshops on effects of technological advances on society.

The recordings are available for download and can be viewed on the 28C3 Youtube channel.

See also: Cory Doctorow keynote talkread more

MRIs in Stanford experiments indicate active suppression of unneeded memories

January 9, 2004

fMRI studies “confirm the existence of an active forgetting process and establish a neurobiological model for guiding inquiry into motivated (voluntary) forgetting,” say Stanford University scientists.

They showed that the human brain blocks an unwanted memory, that there is such a mechanism, and it has a biological basis. The findings could encourage the development of new ways for people to overcome traumatizing memories.

Nano-based RFID tags could replace bar codes

March 19, 2010


Rice University and Sunchon National University researchers have developed an inexpensive, printable transmitter that can be invisibly embedded in plastic or paper packaging, cutting costs of RFID tags dramatically and replacing bar codes.

Instead of expensive silicon-based components, the technology is based on carbon-nanotube-infused ink used for ink-jet printers. The tags are powered by radio waves from the RFID reader.

More info:read more

Keep Searching

July 28, 2008

Cuil, a new search engine, displays long descriptions of each search result alongside images from 120 billion Web pages.

Cuil attempts to see relationships between words and ranks sites by relevance rather than links.

Samsung’s gun-toting robot

December 5, 2006

The Intelligent Surveillance and Security Guard Robot, being developed by Samsung, will guarantee “perfect guarding operation,” in contrast with human guards who are all too prone to succumb to fatigue or inclement weather.

It has two cameras–one for daytime watch and another, infrared one for the night–and a laser rangefinder.

Congress considers paywalling science you already paid for

January 9, 2012


Should you be able to read research you’ve helped to fund?

A few years ago, Congress approved an access policy that makes most taxpayer-funded research freely available online within 12 months of publication. It has proven a huge boon to researchers and the public.

Now, however, as UC Berkeley evolutionary biologist Michael Eisen relates, a proposed bill threatens to reverse this policy, Wired Scienceread more

Designer gene therapy may target specific body area

January 20, 2004

Doctors may soon be able to inject genetically engineered “designer” gene therapy intravenously that travels to a specific part of the body, according to Dr. Andrew H. Baker, molecular medicine researcher at the University of Glasgow,

Gene therapy involves inserting the treatment genes into a virus that is either harmless to humans or has had its disease-causing component removed. The virus is then injected or inserted into the body… read more

Advanced retinal implant developed

March 31, 2010

Advanced retinal implant

Bionic Vision Australia and University of New South Wales researchers have developed an advanced retinal implant to enable patients suffering from degenerative vision loss caused by retinitis pigmentosa and age-related macular degeneration to perceive points of light in the visual field that the brain can then reconstruct into an image.

The device consists of a miniature camera mounted on glasses that captures visual input, transforming it into… read more

World’s First Robotised Tele-Ultrasound Exam via Satellite

July 31, 2008

French firm Robosoft has announced the world’s first “robotized tele-ultrasound” examination via satellite.

In a demonstration, a doctor in France controlled a remote robot with an ultrasound probe to examine a patient on board a ship in the Mediterranean, using an Internet communication via satellite.

10 Tech Concepts You Need to Know for 2007

December 15, 2006

PRAM (Phase-Change Random Access Memory), Printed Solar Panels, Body Area Network, VoN (Video on the Net), and Data Cloud are among the technologies you’ll be talking about next year.

NIH scientists identify novel approach to view inner workings of viruses

January 13, 2012


Researchers at the National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), part of the National Institutes of Health (NIH), have developed a new way to see structures within viruses that were not clearly seen before.

Cryo-electron microscopy (cryo-EM) is a technique that allows scientists to image very small particles, like structures on the surface of viruses. This method has been useful in helping… read more

A mouse that can regenerate its tissues

February 5, 2004

Researchers at the European Molecular Biology Laboratory and the University of Rome have found a way to mobilize stem cells to achieve a major regeneration of damaged tissue.

The scientists investigated muscle tissue in mice, discovering that stem cells can travel large distances to reach an injury. They also found a special form of a protein called mIGF-1 induces the muscle to send the distress signal that summons them.… read more

‘Mind-reading’ brain-scan software showcased in NY

April 8, 2010

Intel Corp. has introduced software that analyzes functional MRI scans to determine what parts of a person’s brain are being activated as he or she thinks, demonstrating 90 percent accuracy in guesses about which of two words a person was thinking about.

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