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New multilayer graphene structure allows ‘ultraprecise,’ ‘ultrafast’ water filtering

Next step: reduce the filter size to filter out even the smallest salts like in seawater for drinkable water -- "no longer science fiction"
February 18, 2014


University of Manchester researchers have taken another key step toward a seawater filter: they’ve developed one-atom-wide graphene-oxide (GO) capillaries by building multilayer GO membranes (laminates).

As described in Science, these new laminates allow for “ultraprecise” selection of molecules that can go through the filter and “ultrafast” flow of water.

The new GO filters have an “astonishingly” accurate mesh that allows them to distinguish between atomic species… read more

Self-braking cars will save thousands of lives

October 8, 2012


How effective are systems that warn a driver about an impending front collision, then slam on the brakes if the driver doesn’t act quickly enough?

A lot, says a paper recently published in IEEE Transactions on Intelligent Transportation Systems, IEEE Spectrum Tech Talk reports.

Researchers at Virginia Tech’s Center for Injury Biomechanics studied systems that rely on radar to tell the car when it is coming… read more

Fukushima fuel pool is urgent national security issue for America, ‘top threat facing humanity’

May 7, 2012


After visiting Fukushima, Senator Ron Wyden warned that the situation was worse than reported, Washington’s Blog reports … and urged Japan to accept international help to stabilize dangerous spent fuel pools.

Wyden said that the spent fuel is a national security threat to the U.S.: “The radiation caused by the failure of the spent fuel pools in the event of another earthquake could reach the West… read more

Controlling heat like light

New approach using nanoparticle alloys allows heat to be focused or reflected just like electromagnetic waves
January 15, 2013

An MIT researcher has developed a technique that provides a new way of manipulating heat, allowing it to be controlled much as light waves can be manipulated by lenses and mirrors.

The approach relies on engineered materials consisting of nanostructured semiconductor alloy crystals.

Heat is a vibration of matter — technically, a vibration of the atomic lattice of a material — just as sound… read more

Over-65s at increased risk of developing dementia with benzodiazepine

October 1, 2012


Patients over the age of 65 who begin taking benzodiazepine (a popular drug used to treat anxiety and insomnia) are at an approximately 50% increased risk of developing dementia within 15 years compared to never-users, an open access study published on suggests.

The authors say that “considering the extent to which benzodiazepines are prescribed and the number of potential adverse effects, indiscriminate widespread use… read more

Cosmo Wenman’s mind-blowing 3D-printed sculptures

October 22, 2012


Cosmo Wenman is a California artist who has just reminded us not to limit our imaginations when it comes to what can be made, MakerBot Blog reports.

The horse head and human bust you see here were made entirely of MakerBot PLA Filament (White) on the original MakerBot Replicator.

“We believe so strongly in the potential of the… read more

With evolved brains, robots creep closer to animal-like learning

February 7, 2013


Get ready for four-legged bots of all shapes and sizes — and for all sorts of uses — that learn how to maneuver through landscapes with the grace of a cheetah, Fast Company reports.

The most nightmare-inducing characteristic of Big Dog, DARPA’s robotic military mule, might be the way it moves so stiffly, yet unrelentingly, over treacherous battleground. Turns out the repetitive mechanical gait that… read more

Sony announces PS4 PlayStation

February 21, 2013

Sony PS4 controller (credit: Sony Computer Entertainment, Inc.)

The PlayStation 4, as you’d expect for a seven-years-later follow-up, has impressively bumped specs. An eight-core X86 AMD “Jaguar” CPU and a 1.84 Teraflop AMD Radeon graphics engine (with “18 compute units”) comprise the central processing on the PS4, CNET reports.

There’s also 8GB of fast GDDR5 memory. The PS4 will use a hard drive for storage versus an SSD, but the included capacity in the box… read more

White House announces new US ‘open access’ policy

A "massive sellout" to big publishers, with 12-month embargo on research, says a PLOS founder
February 25, 2013

(Credit: iStockphoto)

The White House said Friday that publications from taxpayer-funded research should be available to you, but only after a year’s delay.

“The Obama Administration is committed to the proposition that citizens deserve easy access to the results of scientific research their tax dollars have paid for,” the memo said.

But that doesn’t mean fast access. And the policy would, strangely, only apply to Federal agencies with more… read more

A new method for producing clean hydrogen

May 23, 2013


Duke University engineers have developed a novel method for producing clean hydrogen, which could prove essential to weaning society off of fossil fuels and their environmental implications.

While hydrogen is ubiquitous in the environment, producing and collecting molecular hydrogen for transportation and industrial uses is expensive and complicated. Just as importantly, a byproduct of most current methods of producing hydrogen is carbon monoxide, which is… read more

1 in 8 chance of catastrophic solar megastorm by 2020

March 4, 2012

Solar flares

The Earth has a roughly 12 percent chance of experiencing an enormous megaflare erupting from the sun in the next decade,  according to space physicist Pete Riley, senior scientist at Predictive Science in San Diego, California, writing n Space Weather on Feb. 23.

This event could potentially cause trillions of dollars’ worth of damage and take up to a decade to recover from,  according to a 2008 report from the National… read more

Black hole birth captured by ‘armada of instruments’

"A Rosetta-Stone event ... may require physicists to modify existing theories about radiation"
November 25, 2013


“Los Alamos’ RAPTOR telescopes in New Mexico and Hawaii received a very bright cosmic birth announcement for a black hole on April 27,” said astrophysicist Tom Vestrand, lead author of a paper n the journal Science Nov. 21 that highlights the unusual event.

“This was the burst of the century,” said Los Alamos co-author James Wren. “It’s the biggest, brightest one to happen in at least 20 years, and… read more

Hubble sees cloudy ‘super-Earth’ 40 light-years away

January 2, 2014


Two teams of scientists using NASA’s Hubble Space Telescope report they have characterized the atmospheres of a pair of planets with masses intermediate between gas giants, like Jupiter, and smaller, rockier planets, like Earth.

A survey by NASA’s Kepler space telescope mission previously showed that objects in this size range are among the most common type of planets in our Milky Way galaxy. The researchers described their… read more

‘Nanozyme’ nanoparticles can be programmed to target different diseases

July 19, 2012

Nanozymes (colloidal nanoparticles with a diameter of 48 nm, with a core/shell structure consisting of a 13-nm gold nanoparticle core and a shell of single-stranded DNA oligonucleotides

University of Florida researchers have moved a step closer to treating diseases on a cellular level by creating a nanoparticle that can be programmed to shut down the genetic production line that cranks out disease-related proteins.

In laboratory tests, these newly created nanoparticles eradicated most of a hepatitis C virus infection. The programmable nature of the particle makes it also potentially useful against diseases such… read more

Milky Way may have 100 million life-giving planets

“It seems highly unlikely that we are alone.”
June 5, 2014

Milky Way arch as seen from Chile (credit: Bruno Gilli/European Southern Observatory)

There are some 100 million other places in the Milky Way galaxy that could support life above the microbial level, reports a group of astronomers in the journal Challenges (open access), based on a new computation method to examine data from planets orbiting other stars in the universe.

“This study does not indicate that complex life exists on that many planets; we’re saying that there are planetary conditions that… read more

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