ScienceDaily: Top Technology News

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• Under 'dark halo' old galaxies have many more stars
• Use of public and private dollars for scaling up clean energy needs a reality check, say scholars
• Chemist delivers cleaner air with novel carbon-capture technique
• Novel radiation surveillance technology could help thwart nuclear terrorism
• Thwarting the cleverest attackers: Even most secure-seeming computer is shockingly vulnerable to attack
• When cells hit the wall: Engineers put the squeeze on cells to diagnose disease
• Inexpensive, abundant starch fibers could lead to ouchless bandages
• Website security: Spot a bot to stop a botnet
• Venus to appear in once-in-a-lifetime event
• Faster-ticking clock indicates early solar system may have evolved faster than we thought
• A 100-gigabit highway for science: Researchers take a 'test drive' on ANI testbed

Under 'dark halo' old galaxies have many more stars Posted: 01 May 2012 06:14 PM PDT Some of the oldest galaxies in the Universe have three times more stellar mass, and so many more stars, than all current models of galaxy evolution predict.

Use of public and private dollars for scaling up clean energy needs a reality check, say scholars Posted: 01 May 2012 01:27 PM PDT In a post-Solyndra, budget-constrained world, the transition to a decarbonized energy system faces great hurdles. Overcoming these hurdles will require smarter and more focused policies. Two writers outline their visions in a pair of high-profile analyses.

Chemist delivers cleaner air with novel carbon-capture technique Posted: 01 May 2012 01:25 PM PDT Researchers are exploring an increasingly versatile class of materials known as metal-organic frameworks (MOF). An emerging technology in the scientific community, MOF are porous crystalline polymers made up of metal ions or metal-containing components and organic ligands. Chemists are assembling MOF materials with a profound potential for providing for cleaner energy around the globe.

Novel radiation surveillance technology could help thwart nuclear terrorism Posted: 01 May 2012 11:50 AM PDT Researchers have developed a prototype radiation-detection system that uses rare-earth elements and other materials at the nanoscale. The system could be used to enhance radiation-detection devices used at ports, border crossings, airports and elsewhere.

Thwarting the cleverest attackers: Even most secure-seeming computer is shockingly vulnerable to attack Posted: 01 May 2012 10:44 AM PDT Savvy hackers can steal a computer's secrets by timing its data storage transactions or measuring its power use. New research shows how to stop them.

When cells hit the wall: Engineers put the squeeze on cells to diagnose disease Posted: 01 May 2012 07:01 AM PDT Bioengineering researchers have taken advantage of cell physical properties for the development of a new instrument that slams cells against a wall of fluid and quickly analyzes the physical response, allowing identification of cancer and other cell states without chemical tags. The deformability cytometer consists of a miniaturized microfluidic chip that sequentially aligns cells so that they hit a wall of fluid at rates of thousands per second.

Inexpensive, abundant starch fibers could lead to ouchless bandages Posted: 01 May 2012 07:00 AM PDT A process that spins starch into fine strands could take the sting out of removing bandages, as well as produce less expensive and more environmentally friendly toilet paper, napkins and other products, according to food scientists.

Website security: Spot a bot to stop a botnet Posted: 01 May 2012 07:00 AM PDT Computer scientists have developed a two-pronged algorithm that can detect the presence of a botnet on a computer network and block its malicious activities before it causes too much harm.

Venus to appear in once-in-a-lifetime event Posted: 01 May 2012 05:55 AM PDT On 5 and 6 June this year, millions of people around the world will be able to see Venus pass across the face of the Sun in what will be a once-in-a-lifetime experience. It will take Venus about six hours to complete its transit, appearing as a small black dot on the Sun's surface, in an event that will not happen again until 2117.

Faster-ticking clock indicates early solar system may have evolved faster than we thought Posted: 01 May 2012 05:55 AM PDT Our solar system is four and a half billion years old, but its formation may have occurred over a shorter period of time than we previously thought, say researchers.

A 100-gigabit highway for science: Researchers take a 'test drive' on ANI testbed Posted: 30 Apr 2012 12:21 PM PDT Climate researchers are producing some of the fastest growing datasets in science. Five years ago, the amount of information generated for the Nobel Prize-winning United Nations International Panel on Climate Change (IPCC) Fourth Assessment Report was 35 terabytes —- equivalent to the amount of text in 35 million books, occupying a bookshelf 248 miles (399 km) long. By 2014, when the next IPCC report is published, experts predict that 2 petabytes of data will have been generated for it—that's a 580 percent increase in data production. Because thousands of researchers around the world contribute to the generation and analysis of new data, a reliable, high-speed network is needed to transport the torrent of information. Fortunately, the Department of Energy's (DOE) ESnet (Energy Sciences Network) has laid the foundation for such a network -- not just for climate research, but for all data-intensive science.

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