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Blog – Page 11913

Facebook today announced the launch of the Telecom Infra Project (TIP), which is bringing together a coalition of internet service providers and tech companies to focus on the engineering challenges of delivering high-res video and virtual reality. The group has 30 initial members including T-Mobile, Nokia, Intel, Deutsche Telekom, and SK Telecom. The approach is modeled after the Open Compute Project, which was started by Facebook in 2011 to share designs of data-center products, and has ties to Facebook’s Internet.org initiative to bring connectivity to rural areas and developing countries.

“Every day, more people and more devices around the world are coming online, and it’s becoming easier to share data-intensive experiences like video and virtual reality,” Jay Parikh, Facebook’s global head of engineering and infrastructure, writes in a blog post. “Scaling traditional telecom infrastructure to meet this global data challenge is not moving as fast as people need it to.”

The TIP’s technology companies and hardware makers will work together to contribute designs for products like wireless radios and optical fiber gear to better manage, store, and deliver intensive data, while telecoms can then use those designs in practice. “This will result in significant gains in cost and operational efficiency for both rural and urban deployments,” Parikh adds. The group will also work toward accelerating the development of 5G networks.

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The clang of metal, breathtaking speed and tons of adrenaline! Watch a futuristic video of battle robots in ultimate fighting in Moscow. The iron warriors are clashing without mercy for the right to face foreign competitors.

The Russian capital is holding an international competition ‘Bronebot-2016’ for battle robots, February 21–23. “Attention! The show contains scenes of total robot carnage,” the banner reads.

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A major goal in renewable energy research is to harvest the energy of the sun to convert water into hydrogen gas, a storable fuel. Now, with a nanoparticle-based system, researchers have set a record for one of the half-reactions in this process, reporting 100% efficiency for the reduction of water to hydrogen (Nano Lett. 2016, DOI: 10.1021/acs.nanolett.5b04813).

To make such water-splitting systems, researchers must find the right materials to absorb light and catalyze the splitting of water into hydrogen and oxygen. The two half-reactions in this process—the reduction of water to hydrogen gas, and the oxidation of water to oxygen gas—must be isolated from each other so their products don’t react and explode. “Completing the cycle in an efficient, stable, safe fashion with earth-abundant elements is an ongoing challenge,” says chemist Nathan S. Lewis of Caltech, who was not involved in this study.

Until recently, the efficiency of the reduction step had maxed out at 60%. One challenge is that electrons and positive charges formed in the light absorption process can rapidly recombine, preventing the electrons from reducing water molecules to form hydrogen. To overcome this problem, several years ago, Lilac Amirav of Technion–Israel Institute of Technology and her colleagues designed a nanoparticle-based system (J. Phys. Chem. Lett. 2010, DOI: 10.1021/jz100075c) that would physically separate the charges formed during photocatalysis.

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Physicists have zoomed in on the transition that could explain why copper-oxides have such impressive superconducting powers.

Settling a 20-year debate in the field, they found that a mysterious quantum phase transition associated with the termination of a regime called the “pseudogap” causes a sharp drop in the number of conducting electrons available to pair up for superconductivity. The team hypothesizes that whatever is happening at this point is probably the reason that cuprates support superconductivity at much higher temperatures than other materials—about half way to .

“It’s very likely that the reason superconductivity grows in the first place, and the reason it grows so strongly, is because of that ,” CIFAR Senior Fellow Louis Taillefer (Université de Sherbrooke) says. The new findings are published in Nature.

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