Sci-tech News
Home | Add News | Advanced Search
Theoretical and Applied Physics
   Recent | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005

Authorea Nabs $610k For Its Bid To Become A ‘Google Docs For Scientists’
23 Sep | TechCrunchFull Text External Link Indicator
"Authorea, a startup that’s aiming to shake up the staid scientific publication process — of learned journals and lengthy peer reviews — with a digital collaboration platform that encourages more immediate knowledge-sharing in the scientific research community, has closed a $610,000 seed round, jointly led by ff Venture Capital and NY Angels." by Natasha Lomas
Photonic router is a step toward quantum computing
11 Sep | MRS BulletinFull Text External Link Indicator
"Weizmann Institute scientists take another step down the long road
toward quantum computers as they demonstrate a photonic router: a quantum device based on a single atom that enables routing of single photons by single photons. At the core of the device is an atom that can switch between two states, as reported in the July 10 online edition of Science (DOI: 10.1126/science.1254699). The state is set just by sending a single particle of light—or photon—from the right or the left through an optical fiber. The atom, in response, then reflects or transmits the next incoming photon accordingly. For example, in one state, a photon coming from the right continues on its path to the left, whereas a photon coming from the left is refl ected backwards, causing the atomic state to fl ip. In this reversed state, the atom lets photons coming from the left continue in the same direction, while any photon coming from the right is refl ected backwards, flipping the atomic state back again. This atom based
switch is solely operated by single photons—no additional external fields are required."
Mechanical metamaterials produce ultralight, ultrastiff lattices
11 Sep | MRS BulletinFull Text External Link Indicator
"The word “metamaterial” conjures up visions of matter interacting with electromagnetic waves to bend the waves around objects, producing a “cloaking device” that hides the object from detection.
But the “mechanical metamaterials” that Chris Spadaccini’s group at Lawrence Livermore National Laboratory and Nicholas Fang’s team at the Massachusetts Institute of Technology (MIT) are working on aim to avoid bending as much as possible—mechanical bending, that is.
Instead, by causing forces to distribute only in stretching or compression modes along the struts of an octet truss, they have
fabricated ultralight, ultrastiff materials from polymers, metals, and ceramics. These materials could have applications in automobiles and aircraft, among other applications, where lightweighting could help conserve fuel without giving up strength." Tim Palucka
Sizing Solar Energy Harvesters for Wireless Sensor Network
01 Sep | EEWebFull Text External Link Indicator
"This application note presents Energy Harvesting as a means to power Wireless Sensing Network (WSN) device. The document describes the energy available, which only comes from only four choices namely temperature differential, vibration light (indoor and out) and the RF energy. It also presents the choice of PV cells, how much energy can be extracted, which is shown through calculations, the energy storage and the amount of storage and harvesting that is required."
Emerging Metamaterials Offer Remarkable Properties, Will Go Mainstream in 2024
29 Aug | Lux ResearchFull Text External Link Indicator
"Cost-effective manufacturing will be key to commercial adoption of novel materials that can help create devices like superlenses and improved antennas, says Lux Research" Carole Jacques
How D-Wave Built Quantum Computing Hardware for the Next Generation
17 Jul | IEEE SpectrumFull Text External Link Indicator
"One second is here and gone before most of us can think about it. But a delay of one second can seem like an eternity in a quantum computer capable of running calculations in millionths of a second. That's why engineers at D-Wave Systems worked hard to eliminate the one-second computing delay that existed in the D-Wave One—the first-generation version of what the company describes as the world's first commercial quantum computer.

Such lessons learned from operating D-Wave One helped shape the hardware design of D-Wave Two, a second-generation machine that has already been leased by customers such as Google, NASA, and Lockheed Martin. Such machines have not yet proven that they can definitely outperform classical computers in a way that would support D-Wave's particular approach to building quantum computers. But the hardware design philosophy behind D-Wave's quantum computing architecture points to how researchers could build increasingly more powerful quantum computers in the future." By Jeremy Hsu
Dartmouth firm Lamda Guard to announce deal with Airbus
03 Jun | Herald BusinessFull Text External Link Indicator
"Lamda Guard Inc., a Dartmouth company whose light filter technology can protect aircraft flight crews from laser light attacks, is forming a partnership with European aircraft giant Airbus." Bruce Erskine
First Acoustic Metamaterial Device reconfigurable in Real Time
01 May | TechFragmentsFull Text External Link Indicator
"Dynamically altering the form of a three-dimensional colloidal crystal in real time is possible, research from the University of Bristol’s Department of Mechanical Engineering shows. This was done using an acoustic metadevice that is able to influence the acoustic space and control any of the ways in which sound waves travel."
Heat cloaks hide objects in 3D
01 May | PhysicsWorld.ComFull Text External Link Indicator
"Heat cloaks" that hide objects from thermal energy and are made from readily available materials such as polystyrene and copper have been unveiled by two independent groups in Singapore. Whether these devices will have practical applications remains unclear, but one possible use for such heat cloaks could be to manage heat in electronic circuits and the batteries used in mobile devices." Tim Wogan
Nanoengineers develop ultrathin perfect UV light absorber
01 May | Nano WerkFull Text External Link Indicator
"(Nanowerk News) Ultraviolet light (UV) has not only harmful effects on molecules and biological tissue like human skin but it also can impair the performance of organic solar cells upon long-term exposure. Researchers of Kiel University and Helmholtz-Zentrum Geesthacht have now developed a so-called plasmonic metamaterial, which is compatible with solar technology and completely absorbs UV light – despite being only 20 nanometers thin." Source: Helmholtz-Zentrum Geesthacht

more results (24 total) > [Next]