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Shear stiffness and friction mechanics of single-layer graphene measured for the first time

Researchers from the University of Bristol have measured and identified for the first time the stress and strain shear modulus and internal friction of graphene sheets. Graphene is a material that has many ...

Nanotechnology / Nanomaterials

created Feb 14, 2012 | popularity 4.7 / 5 (3) | comments 0 | with audio podcast

Tandem polymer solar cells that set record for energy-conversion

(PhysOrg.com) -- In the effort to convert sunlight into electricity, photovoltaic solar cells that use conductive organic polymers for light absorption and conversion have shown great potential. Organic polymers ...

Physics / Optics & Photonics

created Feb 13, 2012 | popularity 4.6 / 5 (12) | comments 7 | with audio podcast

Planck mission steps closer to the cosmic blueprint

(PhysOrg.com) -- ESA's Planck mission has revealed that our Galaxy contains previously undiscovered islands of cold gas and a mysterious haze of microwaves. These results give scientists new treasure to mine ...

Space & Earth / Astronomy

created Feb 13, 2012 | popularity 4.8 / 5 (18) | comments 5 | with audio podcast

India probes Google over 'forex transactions'

Indian authorities are probing whether online giant Google broke domestic foreign-exchange transactions rules while shifting funds abroad, the Press Trust of India reported on Friday.

Technology / Internet

created Feb 10, 2012 | popularity not rated yet | comments 0

Hunting could hurt genetic diversity of sandhill cranes, research suggests

(PhysOrg.com) -- As Wisconsin lawmakers debate whether to establish a hunting season for sandhill cranes, they may want to consider more than just the sheer number of birds, suggests a University of Wisconsin-Madison ...

Biology / Ecology

created Feb 09, 2012 | popularity 5 / 5 (1) | comments 0

When did the feather take flight?

(PhysOrg.com) -- Some 125 million years ago--more recently than once thought possible -- the molecular structure of the modern feather began to take form, according to molecular dating research by scientists ...

Biology / Evolution

created Feb 07, 2012 | popularity 5 / 5 (6) | comments 3 | with audio podcast

Modeling microbes to manage carbon dioxide

(PhysOrg.com) -- In the past decade, microbiologists began realizing that communities of microbes process energy and materials, which affects their environments. To understand how microbial communities function ...

Biology / Cell & Microbiology

created Feb 07, 2012 | popularity not rated yet | comments 0

UT biosolar breakthrough promises cheap, easy green electricity

Barry D. Bruce, professor of biochemistry, cellular and molecular biology, at the University of Tennessee, Knoxville, is turning the term "power plant" on its head. The biochemist and a team of researchers have developed ...

Technology / Energy & Green Tech

created Feb 02, 2012 | popularity 4.9 / 5 (8) | comments 8 | with audio podcast

Zinc-finger proteins act as site-specific adapters for DNA-origami structures

(PhysOrg.com) -- DNA is not merely a carrier of genetic information; DNA is a useful building material for nanoscale structures. In a way similar to origami, the Japanese art of paper folding, a long single ...

Chemistry / Biochemistry

created Feb 02, 2012 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Scientists help define structure of exoplanets

Using models similar to those used in weapons research, scientists may soon know more about exoplanets, those objects beyond the realm of our solar system.

Space & Earth / Astronomy

created Feb 01, 2012 | popularity not rated yet | comments 0 | with audio podcast

A spider web's strength lies in more than its silk

While researchers have long known of the incredible strength of spider silk, the robust nature of the tiny filaments cannot alone explain how webs survive multiple tears and winds that exceed hurricane strength.

Technology / Computer Sciences

created Feb 01, 2012 | popularity 4.7 / 5 (11) | comments 0 | with audio podcast

New zeolite material may solve diesel shortage

World fuel consumption is shifting more and more to diesel at the expense of gasoline. A recently published article in Nature Chemistry by a research team at Stockholm University and the Polytechnic University of Valencia in Spa ...

Chemistry / Materials Science

created Feb 01, 2012 | popularity 3 / 5 (1) | comments 0

Protein study gives fresh impetus in fight against superbugs

Scientists have shed new light on the way superbugs such as MRSA are able to become resistant to treatment with antibiotics.

Chemistry / Biochemistry

created Jan 31, 2012 | popularity not rated yet | comments 0

Something old, something new: Evolution and the structural divergence of duplicate genes

(PhysOrg.com) -- Gene duplications are arguably the driving force of organismal evolution – and if they survive, such duplicate genes will diverge in both regulatory and coding genomic regions. Coding ...

Biology / Biotechnology

created Jan 31, 2012 | popularity 4.6 / 5 (7) | comments 1 | with audio podcast feature

Discovery of 'bioelectric' arteries opens path to heart disease treatment

Bionic eyes and limbs made television's six million dollar man an icon, but new research suggests our existing biological structure already exhibits a valuable electrical property. Scientists have found that ...

Physics / General Physics

created Jan 30, 2012 | popularity 4.1 / 5 (7) | comments 2 | with audio podcast