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nikolas smyrlakis

PARC (Palo Alto Research Center) - 0 views

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    An interesting research centre in California! Focus areas: Business Services Electronic Materials, Devices, & Systems Information & Communication Technologies Biomedical Systems Cleantech
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    and some very ACT- like interesting internships / ideas they have Automatic summarization of related documents http://www.parc.com/job/43/automatic-summarization-of-related-documents.html (remember Kev's idea?) Bayesian diagnosis http://www.parc.com/job/34/bayesian-diagnosis---summer.html Autonomous robotics UAVs UGVs http://www.parc.com/job/36/autonomous-robotics---summer.html
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    XEROX PARC was definitely heavily involved in computer development: eg. mouse, GUI, ethernet, OO programming, all came out of PARC, and all that without focusing on computers but printers...
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    aaah its the XEROX centre, didn't know. Yep they made the mouse and then handed it over nicely to Apple after IBM thought it was useless
Giusi Schiavone

RedTacton - 4 views

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    impressive: use of human body for communication between electronic devices
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    i saw once a similar system that would automatically transfer your business card when you shake hands ... funny ..
H H

Lockheed Claims Breakthrough on Fusion Energy - 3 views

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    Lockheed Martin Corp said on Wednesday it had made a technological breakthrough in developing a power source based on nuclear fusion, and the first reactors, small enough to fit on the back of a truck, could be ready in a decade.
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    Is positive news definitely, but when it comes to fusion energy being skeptic is the wisest course of action. On the back of a truck basically means that the energy density of the device is such that the surface energy of a (steady state) plasma is beyond currents materials limits. It is probably a pulsed (ignitor-type) device, which are prone to instabilities. That could therefore refer to their breakthrough claim, of which they hardly say anything though. Lets see
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    Since there were already a lot of false alarms on the field, one should definitively be careful about it. However not a single detail about its structure or how it works in this new... Here http://www.fusenet.eu/node/400 you can find a bit more of information about it.
LeopoldS

Open WhisperSystems >> Open WhisperSystems - 0 views

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    encrypted phone calls on android and now also ios devices? here we go, from the programmer of PGP
Isabelle Dicaire

Experimental space telescopes to be 3D-printed at NASA - Laser Focus World - 0 views

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    From the article: By the end of September 2014, Jason Budinoff, an aerospace engineer at NASA's Goddard Space Flight Center (Greenbelt, MD), is expected to complete the first imaging telescopes ever assembled almost exclusively from 3D-manufactured components. The devices' optics and electronics will be fabricated using conventional methods. "As far as I know, we are the first to attempt to build an entire instrument with 3D printing," says Budinoff. He is building a fully functional 50 mm camera whose outer tube, baffles, and optical mounts are all printed as a single structure. The instrument is appropriately sized for a CubeSat (a small satellite made of individual units each about 100 mm on a side). 
jaihobah

The Nanodevice Aiming to Replace the Field Effect Transistor - 2 views

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    very nice! "For a start, the wires operate well as switches that by some measures compare well to field effect transistors. For example they allow a million times more current to flow when they are on compared with off when operating at a voltage of about 1.5 V. "[A light effect transistor] can replicate the basic switching function of the modern field effect transistor with competitive (and potentially improved) characteristics," say Marmon and co. But they wires also have entirely new capabilities. The device works as an optical amplifier and can also perform basic logic operations by using two or more laser beams rather than one. That's something a single field effect transistor cannot do."
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    The good thing about using CdSe NW (used here) is that they show a photon-to-current efficiency window around the visible wavelengths, therefore any visible light can in principle be used in this application to switch the transistor on/off. I don't agree with the moto "Nanowires are also simpler than field effect transistors and so they're potentially cheaper and easier to make." Yes, they are simple, yet for applications, fabricating devices with them consistently is very challenging (being the research effort not cheap at all..) and asks for improvements and breakthroughs in the fabrication process.
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    any idea how the shine the light selectively to such small surfaces?
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    "Illumination sources consisted of halogen light, 532.016, 441.6, and 325 nm lasers ported through a Horiba LabRAM HR800 confocal Raman system with an internal 632.8 nm laser. Due to limited probe spacing for electrical measurements, all illumination sources were focused through a 50x long working distance (LWD) objective lens (N.A. = 0.50), except 325 nm, which went through a 10x MPLAN objective lens (N.A. = 0.25)." Laser spot size calculated from optical diffraction formula 1.22*lambda/NA
Alexander Wittig

Small, cheap gravity gadget to peer underground - BBC News - 2 views

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    According to their Nature article, they can detect "a tunnel less than 1m across, buried 2m underground" just from its gravitational difference. Using a device that they predict could cost ~100 € in mass production. UK researchers have built a small device that measures tiny fluctuations in gravity, and could be used to monitor volcanoes or search for oil. Such gravimeters already exist but compared to this postage stamp-sized gadget, they are bulky and pricy.
jmlloren

Unsupervised Generative Modeling Using Matrix Product States - 2 views

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    Our work sheds light on many interesting directions of future exploration in the development of quantum-inspired algorithms for unsupervised machine learning, which are promisingly possible to realize on quantum devices.
LeopoldS

This 'personal carbon sequestration' device uses algae to capture CO2 - 3 views

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    for our new office?
LeopoldS

2512 - Charlie's Diary - 4 views

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    As we are allowed to think ...
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    Charles Stross... this one was interesting, but I think the best essay he has written in the past few months is this one: How low (power) can you go? -- On the subject of ubiquitous computing devices and urban architecture
LeopoldS

Ultrashort laser pulses squeezed out of graphene : Nature News & Comment - 1 views

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    isabelle: an option for space baed laser?
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    The fact that the graphene can emit laser pulses at different wavelengths might be interesting for spectroscopy and laser communications. The tiny dimensions might also help in miniaturization of devices (although apparently a conventional laser is necessary for pumping...). Maybe it would be possible to make very efficient displays with such a technology..?
Wiktor Piotrowski

This Mask Gives You Superhuman Abilities - 2 views

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    It does not only give you superhuman abilities... it also makes you look hideous beyond human imagination :-P Nonetheless, it seems really interesting to bring all these separately existing technologies together in a single augmented reality device.
Annalisa Riccardi

Smartphones, Tablets Help Researchers Improve Storm Forecasts - 0 views

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    The next advance in weather forecasting may not come from a new satellite or supercomputer, but from a device in your pocket. University of Washington atmospheric scientists are using pressure sensors included in the newest smartphones to develop better weather forecasting techniques.
jcunha

Clothes that receive and transmit digital information are closer to reality - 1 views

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    Hard work in functional materials is driving the development of new wearable electronics that could be advantageous for communications and sensing is being pursued in the Advanced Functional Fabrics of America Institute. Through embroidering circuits into fabric with 0.1 mm precision full integration of electronic components such as sensors and computer memory devices into clothing is now possible.
jcunha

NanoSmell Project - 0 views

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    "Despite years of promise, an odor-emitting component in devices such as televisions, phones, computers and more has yet to be developed."
LeopoldS

Characterizing Quantum Supremacy in Near-Term Devices - 2 views

shared by LeopoldS on 04 Sep 16 - No Cached
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    google paper on quantum computers ... anybody with further insight on how realistic this is
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    Not an answer to Leopold's question but here is a little primer on quantum computers for those that are (like me) still confused about what they actually do: http://www.dwavesys.com/tutorials/background-reading-series/quantum-computing-primer It give a good intuitive idea of the kinds of problems that an adiabatic quantum computer can tackle, an easy analogy of the computation and an explanation of how this get set up in the computer. Also, there is emphasis on how and why quantum computers lend themselves to machine learning (and maybe trajectory optimization??? - ;-) ).
Lionel Jacques

Solar energy-harvesting "nanotrees" could produce hydrogen fuel on a mass scale - 1 views

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    "... they are looking to use the nanotree structure to mimic photosynthesis in a device that not only harnesses the power of the sun to produce hydrogen fuel, but also captures CO2 from the atmosphere to reduce carbon emissions at the same time."
Lionel Jacques

LED converts heat into light - 0 views

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    "A light-emitting diode (LED) that emits more light energy than it consumes in electrical energy has been unveiled by researchers in the US. The device - which has a conventional efficiency of greater than 200% - behaves as a kind of optical heat pump that converts lattice vibrations into infrared photons, cooling its surroundings in the process."
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    Sorry, did not see that you have already posted this one ...
Ma Ru

Error Undoes Faster-Than-Light Neutrino Results - 3 views

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    :-)
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    And this guy is 200 bucks ahead http://xkcd.com/955/
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    Well, it's not yet confirmed... That error would be worse than the magnetic moment of the muon about 10 years ago. There, it was "at least" a conflict of conventions used in the computer codes!
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    In a statement based on an earlier press release from the OPERA collaboration, CERN said two possible "effects" may have influenced the anomalous measurements. One of them, due to a possible faulty connection between the fiber-optic cable bringing the GPS signals to OPERA and the detector's master clock, would have caused the experiment to underestimate the neutrinos' flight time, as described in the original story. The other effect concerns an oscillator, part of OPERA's particle detector that gives its readings time stamps synchronized to GPS signals. Researchers think correcting for an error in this device would actually increase the anomaly in neutrino velocity, making the particles even speedier than the earlier measurements seemed to show. CERN's statement says OPERA scientists are studying the "potential extent of these two effects" but doesn't indicate which source of error (if either) is likely to outweigh the other. However, Lucia Votano, director of the Gran Sasso laboratory, says the "main suspicion" focuses on the optical-fiber connection. She adds that OPERA researchers deserve credit for "having tenaciously followed this particular evidence via checks completed in the last few days." The two effects will get a new round of tests in May, when the two labs are scheduled to make velocity measurements with short-pulsed beams designed to give readings much more precise than scientists have achieved so far.
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