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First fully 3D-printed gun test-fired

May 7, 2013

liberator_1

Defense Distributed founder Cody Wilson has test-fired the world’s first fully 3D-printed gun — “the Liberator.”

The CAD file is downloadable* at DEFCAD, operated by Defense Distributed — a “makeshift response to Makerbot Industries’ decision to censor files uploaded in good faith at Thingiverse, specifically firearms-related files.”

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Meet The ‘Liberator’: Test-Firing The World’s First Fully 3D-Printed Gunread more

When machines do your job

Researcher Andrew McAfee says advances in computing and artificial intelligence could create a more unequal society
July 13, 2012

race_against_the_machine

Are American workers losing their jobs to machines?

That was the question posed by Race Against the Machine, an influential e-book published last October by MIT business school researchers Erik Brynjolfsson and Andrew McAfee.

The pair looked at troubling U.S. employment numbers — which have declined since the recession of 2008-2009 even as economic output has risen — and concluded that computer technology was… read more

Bitcoin network speed 8 times faster than top 500 supercomputers combined

May 13, 2013

bitcoin

The mining speed of the bitcoin network on bitcoinwatch.com passed 1 exaFLOPS (1,000 petaFLOPS) this week — more than 8* times the combined speed of the Top 500 supercomputers, according to The Genesis Block.

(FLOPS stands for FLoating-point Operations Per Second, and is frequently used as a standard to measure computer speed.)

However, that calculation was based on 2011 supercomputer data and it’s not… read more

BigBrain: an ultra-high-resolution 3D roadmap of the human brain

June 21, 2013

BigBrain (credit: Montreal Neurological Institute and Forschungszentrum Jülich)

A landmark three-dimensional (3-D) digital reconstruction of a complete human brain, called the BigBrain, shows for the first time the brain anatomy in microscopic detail — at a spatial resolution of 20 microns, smaller than the size of one fine strand of hair — exceeding that of existing reference brains presently in the public domain.

The new tool is made freely available to the broader scientific community to advance… read more

Psychotherapy via Internet found as good as or better than face-to-face

July 31, 2013

(Credit: iStockphoto)

Online psychotherapy is just as efficient as conventional therapy, University of Zurich clinical researchers have found in a study of online psychotherapy vs. conventional face-to-face therapy.

And three months after the end of the therapy, patients given online treatment even displayed fewer symptoms.

Six therapists treated 62 patients, the majority of whom were suffering from moderate depression. The patients were divided into two equal groups… read more

Longevity gene that makes Hydra immortal also controls human aging

November 14, 2012

hydra_kiel

Why is the polyp Hydra immortal? Researchers from Kiel University decided to study it — and unexpectedly discovered a link to aging in humans.

The study carried out by  together with the Keil University Medical Center Schleswig-Holstein (UKSH)

The tiny freshwater polyp Hydra does not show any signs of aging and is potentially immortal. There is a rather simple biological explanation for this: these animals exclusively reproduceread more

Possible breakthrough using graphene for solar cells

Graphene retains its exceptional conductivity and transparency when coated with silicon film
October 14, 2013

graphene_on_glass_substrate

Researchers at the Helmholtz-Zentrum Berlin (HZB) Institute for Silicon Photovoltaics have shown that graphene retains its impressive set of properties when it is coated with a thin silicon film.

These findings may allow for entirely new possibilities to use graphene in thin-film photovoltaics.

Graphene has extreme conductivity and is completely transparent while being inexpensive and nontoxic. This would makes it a perfect candidate material… read more

Omega-3 improves working memory in healthy young adults

October 31, 2012

Lovaza

Researchers at the University of Pittsburgh have determined that healthy young adults ages 18–25 can improve their working memory by increasing their Omega-3 fatty acid intake.

Before they began taking the supplements, all participants were asked to perform a working memory test in which they were shown a series of letters and numbers. The young adults had to keep track of what appeared one, two,… read more

Edward Snowden: NSA whistleblower answers reader questions

June 20, 2013

NSA logo

Edward Snowden took readers’ questions on why he revealed the NSA’s top-secret surveillance of U.S. citizens, the international storm that has ensued, and the uncertain future he now faces, The Guardian reports.

[A few  excerpts --- Editor.]

Q: Some skepticism exists about certain of your claims, including this: “I, sitting at my desk, certainly had the authorities to wiretap anyone, from you, or your accountant, to… read more

A Wikipedia for robots

Allows robots to share knowledge and experience in caring for elders worldwide using a central online database
January 23, 2014

(Credit: TU/e)

European scientists from six institutes and two universities have developed an online platform where robots can learn new skills from each other worldwide — a kind of “Wikipedia for robots.”

The objective is to help develop robots better at helping elders with caring and household tasks.

“The problem right now is that robots are often developed specifically for one task”, says René van de Molengraft, TU/e researcher and… read more

Scientists discover how brain cells age

September 13, 2012

(Credit: iStockphoto)

Newcastle University researchers say they have discovered how neurons age.

Experts previously identified the molecular pathway that reacts to cell damage and stems the cell’s ability to divide, known as cell senescence. However, in cells that do not have this ability to divide, such as neurons in the brain and elsewhere, little was understood of the aging process.

Now scientists at Newcastle University, led by Professorread more

Self-driving cars in 2019, report says

August 23, 2012

kpmg_self_driving_cars

Autonomous cars will be in showrooms as early as 2019, or maybe even sooner, according to a report released by KPMG and the Center for Automotive Research,

The report’s authors explain that “sensor-based technologies” and “connected-vehicle communications” need to converge. Essentially, cars need to be able to communicate with other vehicles on the road so they don’t bash into each other.

They also need the ability to sense… read more

Moore’s Law threatened by lithography woes

October 9, 2012

707px-Extreme_ultraviolet_lithography_tool

Moore’s Law is losing steam due to delayed introduction of next-generation extreme ultraviolet lithography (EUV), said experts at the 2012 International Symposium on Extreme Ultraviolet Lithography, EE Times reports.

EUV systems need light sources that are nearly 20 times more powerful than the ones used today to lay down patterns on next-generation chips that target sizes as small as 14 nm. Lithography experts said that… read more

Most distant galaxy discovered: 30 billion light years away

October 24, 2013

Galaxy_Large_Tilvi

The most distant spectroscopically confirmed galaxy ever found — one created at about 700 million years after the Big Bang — has been detected by astronomers at Texas A&M University and the University of Texas at Austin

“It’s exciting to know we’re the first people in the world to see this,” said Vithal Tilvi, a Texas A&M postdoctoral research associate and… read more

New flexible classroom design

February 8, 2013

Classroom (credit:

Researchers at North Carolina State University have developed a classroom design that gives instructors increased flexibility in how to teach their courses and improves accessibility for students, while slashing administrative costs.

The new flexible approach acknowledges the fact that students are now bringing their own laptops to class. The classrooms also include mobile infrastructure, where whiteboards, desks and tables can be reconfigured according to the… read more

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