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Apr 8, 2016
Quantum dots enhance light-to-current conversion in layered metal dichalcogenide semiconductors
Posted by Karen Hurst in categories: computing, electronics, quantum physics, solar power, sustainability
Improving light-sensing devices with Q-Dots.
Harnessing the power of the sun and creating light-harvesting or light-sensing devices requires a material that both absorbs light efficiently and converts the energy to highly mobile electrical current. Finding the ideal mix of properties in a single material is a challenge, so scientists have been experimenting with ways to combine different materials to create “hybrids” with enhanced features.
In two just-published papers, scientists from the U.S. Department of Energy’s Brookhaven National Laboratory, Stony Brook University, and the University of Nebraska describe one such approach that combines the excellent light-harvesting properties of quantum dots with the tunable electrical conductivity of a layered tin disulfide semiconductor. The hybrid material exhibited enhanced light-harvesting properties through the absorption of light by the quantum dots and their energy transfer to tin disulfide, both in laboratory tests and when incorporated into electronic devices. The research paves the way for using these materials in optoelectronic applications such as energy-harvesting photovoltaics, light sensors, and light emitting diodes (LEDs).
Apr 8, 2016
WebTorrent Desktop Streams Torrents Beautifully
Posted by Sean Brazell in categories: entertainment, internet, media & arts
WebTorrent is best described as a BitTorrent client for the web. It allows people to share files directly from their browser, without having to configure or install any additional software. Now WebTorrent Desktop has arrived, offering a lightweight yet feature-rich streaming and castable experience on Windows, Linux and Mac.
Every day millions of Internet users fire up a desktop-based BitTorrent client to download and share everything from movies, TV shows and music, to the latest Linux distros.
Sharing of multimedia content is mostly achieved by use of a desktop client such as uTorrent, Vuze, qBitTorrent or Transmission, but thanks to Stanford University graduate Feross Aboukhadijeh, there is another way.
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Apr 8, 2016
Video: Humans Could Engineer Themselves for Long-Term Space Travel
Posted by Klaus Baldauf in categories: bioengineering, biological, genetics, space
Apr 8, 2016
SCHAFT Unveils Awesome New Bipedal Robot at Japan Conference
Posted by Klaus Baldauf in category: robotics/AI
Apr 8, 2016
Microsoft Is Developing a New JARVIS-Like Artificial Intelligence System
Posted by Shailesh Prasad in categories: mobile phones, robotics/AI
Just A Rather Very Intelligent System, or as it is more commonly known, JARVIS, is a highly advanced personal digital assistant. And it could be your best friend of tomorrow.
Among all of the fictional artificial intelligence (AI) systems, by far, the coolest one has to be Tony Stark’s JARVIS—It can not only control everything for Iron Man, it’s also a highly intuitive and sentient entity that has become part and parcel of his Tony Stark’s way of life.
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Apr 8, 2016
Overwatch | “Alive” Animated Short | PS4
Posted by Shailesh Prasad in category: entertainment
Overwatch launches May 24, 2016 on PS4. Pre-order now to unlock early access to the Overwatch Open Beta for you and a friend starting May 3: http://bit.ly/1qlCYVO
“Alive” weaves a tale of Widowmaker, the peerless Talon assassin who stalks her prey with deadly efficiency. In this episode, we spend a fateful night in London’s King’s Row — where you’ll discover how one death can change everything.
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Apr 8, 2016
Meet Behrokh Khoshnevis, the Man Designing Robots to Build Colonies on Mars
Posted by Shailesh Prasad in categories: energy, robotics/AI, space
When Khoshnevis imagines the future of colonies on Mars, he imagines very tall buildings, with a lot of protection from the elements.
“Gravity is one third of Earth’s, and therefore with less construction material we can build stronger structures out there, therefore we can build much taller,” he says. “The cost of energy for elevators and all that will be much less. Theoretically everything could be three times as high as here with the same consumption of energy,” he says.
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Apr 8, 2016
‘Groundbreaking’ Stem Cell Treatment Could Regrow Limbs, Repair Bones
Posted by Shailesh Prasad in categories: biotech/medical, life extension
In the pages of comic books and on the silver screen, superheroes like Wolverine and Deadpool have a “healing factor” that allows their bodies to regenerate and recover from injuries or illness at an amazing rate – but certainly nothing like that is possible in real life, right?
Amazingly, a team of scientists led by John Pimanda, a hematologist and associate professor at the University of New South Wales in Australia, published a study in Monday’s edition of the journal PNAS reporting that they had successfully reprogrammed bone and fat cells into induced multipotent stem cells (iMS) – the first step to making such a repair system a reality.
As they explained in a statement, stem cell therapies using iMS cells could theoretically repair a fractured bone or fix injured spinal discs, using a technique similar to how salamanders are able to regenerate lost limbs. These treatments could radically alter the field of regenerative medicine, and perhaps most surprisingly, the authors believe they could be available in just a few years. The technique, which has been successfully tested in mice, “is a significant advance on many of the current unproven stem cell therapies, which have shown little or no objective evidence they contribute directly to new tissue formation,” Pimanda said.
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