Washington, Dec 10 : A new research has determined that contrary to earlier projections, few developing countries will be able to afford more efficient technologies to reduce greenhouse gas emissions in the next few decades.

The study, by researchers at the National Center for Atmospheric Research (NCAR) and the University of Colorado, warns that continuing economic and technological disparities will make it more difficult than anticipated to reduce greenhouse gas emissions, and it underscores the challenges that poorer nations face in trying to adapt to global warming.

Many developing countries, such as Mexico, are failing to adapt technologies that are substantially more efficient and could result in reduced carbon dioxide emissions.

Washington, December 10 : A new chromium-free coating can help protect cars against rust, reveals new study.

Researchers at the Fraunhofer Institutes for Silicate Research ISC in Würzburg and for Machine Tools and Forming Technology IWU in Chemnitz, developed an alternative anti-corrosion method based on nanocomposites as against the long-standing chromium plating prohibited since 2007.

The boffins along with colleagues at the Institute for Corrosion Protection Dresden GmbH had submerged steel sheets into a coating sol, applied a power coating and exposed them to various tests to produce the new nanomaterials.

Washington, Dec 10 : In an effort to combine the properties of plastics and metals, scientists have developed a composite material, which not only conducts electricity like metals but is also light and inexpensive like plastics.

The plastic-metal hybrids will be used in the very places where plastic components are equipped with printed circuit boards, for instance in cars or aircraft.

Till date, it was only possible via the roundabout route of punching and bending metal sheets in an elaborate process in order to integrate them in a component.

London, December 9 : Researchers at Imperial College London claim that they have set a new record for concentrating the Sun’s light on to a solar cell with the aid of a transparent polymer plate.

They think that their solar concentrator sheets may help develop a technology that can result in vastly improved solar power capabilities at much cheaper cost.

Luminescent solar concentrators (LSCs) are plates of plastic or glass that have solar cells mounted along their edges. They are coated with light-absorbing dye molecules.

When the molecules re-emit the light, it bounces through the plate by total internal reflection until it hits the solar cell.

Washington, Dec 9 : The High Resolution Science Imaging Experiment (HiRISE) team, based at the University of Arizona (UA) in the US, has captured 362 three-dimensional images of Mars taken by the HiRISE camera on NASA’s Mars Reconnaissance Orbiter.

Other Mars-orbiting cameras have taken 3D views of Mars, but the HiRISE camera - the most powerful camera ever to orbit another planet - can resolve features as small as one meter, or 40 inches, across.

Washington, Dec 9 : A new image from NASA''s Spitzer Space Telescope shows a turbulent star-forming region, where rivers of gas and stellar winds are eroding thickets of dusty material.

The image is of a stormy region, called M17, or the Swan nebula.

The picture provides some of the best examples yet of the ripples of gas, or bow shocks, that can form around stars in choppy cosmic waters.

"The stars are like rocks in a rushing river," said Matt Povich of the University of Wisconsin, Madison.