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Tuesday, September 16, 2014

ScienceDaily: Top Technology News

ScienceDaily: Top Technology News


Habitual Facebook users: Suckers for social media scams?

Posted: 15 Sep 2014 09:08 AM PDT

A new study finds that habitual use of Facebook makes individuals susceptible to social media phishing attacks by criminals, likely because they automatically respond to requests without considering how they are connected with those sending the requests, how long they have known them, or who else is connected with them.

Run, cheetah, run: New algorithm enables cheetah robot to run and jump, untethered, across grass

Posted: 15 Sep 2014 08:45 AM PDT

Speed and agility are hallmarks of the cheetah: The big predator is the fastest land animal on Earth, able to accelerate to 60 mph in just a few seconds. As it ramps up to top speed, a cheetah pumps its legs in tandem, bounding until it reaches a full gallop.

Scientists come closer to the industrial synthesis of a material harder than diamond

Posted: 15 Sep 2014 07:21 AM PDT

Researchers have developed a new method for the synthesis of an ultrahard material that exceeds diamond in hardness. The material is an ultrahard fullerite, a polymer composed of fullerenes, or spherical molecules made of carbon atoms.

Rolling 'neat' nanotube fibers: Acid-free approach leads to strong conductive carbon threads

Posted: 15 Sep 2014 06:58 AM PDT

The very idea of fibers made of carbon nanotubes is neat, but scientists are making them neat -- literally. The single-walled carbon nanotubes in new fibers line up like a fistful of uncooked spaghetti through a new process.

Fracking: Gas leaks from faulty wells linked to contamination in some groundwater

Posted: 15 Sep 2014 06:58 AM PDT

A study has pinpointed the likely source of most natural gas contamination in drinking-water wells associated with hydraulic fracturing, and it's not the source many people may have feared.

Martian meteorite yields more evidence of the possibility of life on Mars

Posted: 15 Sep 2014 05:37 AM PDT

A tiny fragment of Martian meteorite 1.3 billion years old is helping to make the case for the possibility of life on Mars, say scientists. The finding are of a 'cell-like' structure, which investigators now know once held water.

Study sheds new light on why batteries go bad

Posted: 14 Sep 2014 12:52 PM PDT

A comprehensive look at how tiny particles in a lithium ion battery electrode behave shows that rapid-charging the battery and using it to do high-power, rapidly draining work may not be as damaging as researchers had thought -- and that the benefits of slow draining and charging may have been overestimated. The results challenge the prevailing view that 'supercharging' batteries is always harder on battery electrodes than charging at slower rates.

Three's a charm: Detectors reveal entangled photon triplets

Posted: 14 Sep 2014 12:07 PM PDT

Researchers have directly entangled three photons in the most technologically useful state for the first time, thanks in part to superfast, super-efficient single-photon detectors.

Boosting armor for nuclear-waste eating microbes

Posted: 12 Sep 2014 06:51 PM PDT

A microbe developed to clean up nuclear waste has just been improved. In earlier research, Gemma Reguera, a microbiologist identified that Geobacter bacteria's tiny conductive hair-like appendages, or pili, did the yeoman's share of remediation. By increasing the strength of the pili nanowires, she improved their ability to clean up uranium and other toxic wastes.

Proteins such as tumor markers can be easily, sensitively detected by their scattered light

Posted: 12 Sep 2014 06:51 PM PDT

A new biosensor for the scattered light of individual unmarked biomolecules such as proteins and tumor markers may facilitate medical diagnosis. The biodetector uses the interferometric method iSCAT.

Imaging fuel injectors with neutrons

Posted: 12 Sep 2014 06:50 PM PDT

Researchers are using neutrons to study the formation of these damage-causing bubbles in fuel injectors.

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