DARPA is working on glasses that will endow the user with zoom vision, various forms of nightsight, and act as a heads-up display besides. Perhaps best of all, the proposed kit would also offer “full sphere awareness” – that is, eyes in the back of your head. It is the goals of the DARPA Soldier …
Robert Reich recommends raising the marginal income tax rate on the highest earners to 70-90% to end the US recession. This site does not agree with that recommendation but provides it as an FYI (for your information). In the decades after World War II, legislation like the G.I. Bill, a vast expansion of public higher …
The Carnival of Space 181 is up at Weird warp This site provided an article on robotic air taxis and small pocket airports. Weird Sciences looks at possible paths to negative energy The research paper Experimental Concepts for Generating Negative Energy in the Laboratory y E. W. Devis and H. E. Puthoff is here Davis …
Sketch of the studied system. A QD (green trapezoid) is placed a distance z below a metal mirror. The lateral extension of a QD emitting at 1.2 eV is typically a=20 nm. The plasmon wavelength is λpl=262 nm (figure is not to scale). The field amplitude of the plasmon decays exponentially away from the interface with a change …
Repulsive Casimir forces with finite-thickness slabs We use the extended Lifshitz theory to study the behaviors of the Casimir forces between finite-thickness effective medium slabs. We first study the interaction between a semi-infinite Drude metal and a finite-thickness magnetic slab with or without substrate. For no substrate, the large distance d dependence of the force …
Ray Kurzweil responds to the IEEE Spectum article about his predictions. While I appreciate some of the things John Rennie has to say, his review of my predictions is filled with inaccuracies, including misquotes of mine, and misunderstandings of the meaning of my words and the reality of today’s technology. For starters, he takes note …
Scientists from the Kavli Institute of Nanoscience at Delft University of Technology and Eindhoven University of Technology have succeeded in controlling the building blocks of a future super-fast quantum computer. They are now able to manipulate these building blocks (qubits) with electrical rather than magnetic fields, as has been the common practice up till now. …
A nanotrampoline built out of graphene can directly detect radio frequency signals, paving the way for a new generation of radios. For some time now, physicists have been hoping to find ways of using nanoelectromechanical resonators to filter and generate radio signals directly. At present, this has to be done with various kinds of mixing …
Large-scale cultivation of sea lettuce can help reduce acidification of the oceans. And help solve the global food supply problem to boot. Ocean acidification is an effect of having too much carbon dioxide. The other effect of too much carbon dioxide is global warming. Growing 180,000 square kilometres of sea lettuce (ulva lactuca) could be …
Scanning electron microscope images of the suspended structures of single crystal diamond, (a) cantilever, (b) bridge, and (c) 3-terminal NEMS switch. Air gap structure has been formed in the substrate side. Dr. Meiyong Liao, a Senior Researcher of Sensor Materials Center, National Institute for Materials Science (Japan), and his colleagues, succeeded in the batch fabrication …
Angstron Materials has invented a graphene-based supercapacitor with ultra high energy density, a feature that permits storage of a significant amount of energy This development has pushed the specific energy density of an electrical double-layer (EDL) graphene-enabled supercapacitor to an unprecedented level of nearly 90 watt hours per kilogram at room temperature and a level …