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Soundsnap.com: Find and Share Free Sound Effects and Loops - 0 views

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    "Soundsnap is the best platform to find and share free sound effects and loops- legally. It is a collection of original sounds made or recorded by its users, and not songs or sound FX found on commercial libraries or sample CD's."
Juxi Leitner

StarCraft AI Competition | Expressive Intelligence Studio - 4 views

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    The Expressive Intelligence Studio at UC Santa Cruz will be hosting a StarCraft competition: This competition enables academic researchers to evaluate their AI systems in a robust commercial RTS environment. The final matches will be held live with commentary. Exhibition matches will also be held between skilled human players and the top performing bots.
Luzi Bergamin

First circuit breaker for high voltage direct current - 2 views

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    Doesn't really sound sexy, but this is of utmost importance for next generation grids for renewable energy.
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    I agree on the significance indeed - a small boost also for my favourite Desertec project ... Though their language is a bit too "grandiose": "ABB has successfully designed and developed a hybrid DC breaker after years of research, functional testing and simulation in the R&D laboratories. This breaker is a breakthrough that solves a technical challenge that has been unresolved for over a hundred years and was perhaps one the main influencers in the 'war of currents' outcome. The 'hybrid' breaker combines mechanical and power electronics switching that enables it to interrupt power flows equivalent to the output of a nuclear power station within 5 milliseconds - that's as fast as a honey bee takes per flap of its wing - and more than 30 times faster than the reaction time of an Olympic 100-meter medalist to react to the starter's gun! But its not just about speed. The challenge was to do it 'ultra-fast' with minimal operational losses and this has been achieved by combining advanced ultrafast mechanical actuators with our inhouse semiconductor IGBT valve technologies or power electronics (watch video: Hybrid HVDC Breaker - How does it work). In terms of significance, this breaker is a 'game changer'. It removes a significant stumbling block in the development of HVDC transmission grids where planning can start now. These grids will enable interconnection and load balancing between HVDC power superhighways integrating renewables and transporting bulk power across long distances with minimal losses. DC grids will enable sharing of resources like lines and converter stations that provides reliability and redundancy in a power network in an economically viable manner with minimal losses. ABB's new Hybrid HVDC breaker, in simple terms will enable the transmission system to maintain power flow even if there is a fault on one of the lines. This is a major achievement for the global R&D team in ABB who have worked for years on the challeng
zoervleis

Private Space Habitat to Launch in 2020 Under Commercial Spaceflight Deal - 0 views

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    Two aerospace companies are teaming up to launch giant space habitats to orbit, with the first such liftoff targeted for 2020. Bigelow Aerospace will loft its giant, expandable B330 modules - each of which will provide one-third as much usable volume as the entire International Space Station (ISS) - aboard United Launch Alliance (ULA) Atlas V rockets, representatives from both companies announced today (April 11).
Lionel Jacques

Joggobot turns a quadrocopter into a running companion - 3 views

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    Joggobot turns a quadrocopter into a running companion Researchers from RMIT in Melbourne, Australia have developed a flying running companion called Joggobot. The system uses the built-in camera on a commercially-available Parrot AR Drone quadrocopter to track the position of a jogger, and fly a few feet out in front.
Kevin de Groote

BBC - Future - 1 views

shared by Kevin de Groote on 13 Jun 12 - No Cached
LeopoldS liked it
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    Worth following for inspiration?
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    Yes, definitely!
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    "We're sorry but this site is not accessible from the UK as it is part of our international service and is not funded by the licence fee. It is run commercially by BBC Worldwide, a wholly-owned subsidiary of the BBC, the profits made from it go back to BBC programme-makers to help fund great new BBC programmes. You can find out more about BBC Worldwide and its digital activities at www.bbcworldwide.com." In other words, UK is not part of the world...
Thijs Versloot

Fun fact of the day: the uses of the elements in the periodic table - 1 views

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    To browse all the elements by usage in everyday products
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    Not sure for whom "commercial fixation of nitrogen from the air in the Haber ammonia process" is an everyday activity, but still my favourite is: "As only very little lawrencium has ever been made, lawrencium has no uses." Awww...
Thijs Versloot

Power hiking, single footstep powering 600 #LEDS - 1 views

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    nice indeed! " Triggered by commonly available ambient mechanical energy such as human footfalls, a NG with size smaller than a human palm can generate maximum short-circuit current of 2 mA, delivering instantaneous power output of 1.2 W to external load. The power output corresponds to an area power density of 313 W/m2 and a volume power density of 54 268 W/m3 at an open-circuit voltage of 1200 V. An energy conversion efficiency of 14.9% has been achieved. The power was capable of instantaneously lighting up as many as 600 multicolor commercial LED bulbs. The record high power output for the NG is attributed to optimized structure, proper materials selection and nanoscale surface modification. This work demonstrated the practicability of using NG to harvest large-scale mechanical energy, such as footsteps, rolling wheels, wind power, and ocean waves."
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    You should be able to put it also in your shoes such that you may be able to power some gadgets. Thinking about it, I have seen many kids already running around with brightly lit sneakers!
Athanasia Nikolaou

Perovskite Solar Cells Get the Lead Out - 1 views

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    The fast developping solar cell technology of perovskites. "Perovskites are a broad class of crystalline minerals that have been known for well over a century. But their ability to convert solar energy to electricity came to light only in 2009. Since then, the efficiency of perovskite solar cells has climbed from 3.8% to 19.3%, a pace of improvement unmatched by any other solar technology. By comparison, crystalline silicon solar cells, the leading commercial technology, convert about 25% of solar energy to electricity."
Thijs Versloot

Graphene coated silicon super-capacitors for energy storage - 1 views

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    Recharge in seconds and efficiently store power for weeks between charges. Added bonus is the cheap and abundant components needed. One of the applications they foresee is to attach such a super-capacitor to the back of solar panels to store the power and discharge this during the night
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    very nice indeed - is this already at a stage where we should have a closer look at it? what you think? With experience in growing carbon nanostructures, Pint's group decided to try to coat the porous silicon surface with carbon. "We had no idea what would happen," said Pint. "Typically, researchers grow graphene from silicon-carbide materials at temperatures in excess of 1400 degrees Celsius. But at lower temperatures - 600 to 700 degrees Celsius - we certainly didn't expect graphene-like material growth." When the researchers pulled the porous silicon out of the furnace, they found that it had turned from orange to purple or black. When they inspected it under a powerful scanning electron microscope they found that it looked nearly identical to the original material but it was coated by a layer of graphene a few nanometers thick. When the researchers tested the coated material they found that it had chemically stabilized the silicon surface. When they used it to make supercapacitors, they found that the graphene coating improved energy densities by over two orders of magnitude compared to those made from uncoated porous silicon and significantly better than commercial supercapacitors. Transmission electron microscope image of the surface of porous silicon coated with graphene. The coating consists of a thin layer of 5-10 layers of graphene which filled pores with diameters less than 2-3 nanometers and so did not alter the nanoscale architecture of the underlying silicon. (Cary Pint / Vanderbilt) The graphene layer acts as an atomically thin protective coating. Pint and his group argue that this approach isn't limited to graphene. "The ability to engineer surfaces with atomically thin layers of materials combined with the control achieved in designing porous materials opens opportunities for a number of different applications beyond energy storage," he said.
Paul N

Hacking Team Breach Shows a Global Spying Firm Run Amok | WIRED - 1 views

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    Few news events can unleash more schadenfreude within the security community than watching a notorious firm of hackers-for-hire become a hack target themselves. In the case of the freshly disemboweled Italian surveillance firm Hacking Team, the company may also serve as a dark example of a global surveillance industry that often sells to any government willing to pay, with little regard for that regime's human rights record. Scroll down for the commercial. :)) Funny that when I keep complaining about privacy and monitoring, people still point and laugh.
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    And the direct link to the whole stash: https://ht.transparencytoolkit.org/ Their admin kept a plain text file with passwords on his desktop. Maybe they should have hired someone to do an audit :) More importantly, from the files it follows that this company found and exploited yet another vulnerability in Flash. So the current round of plugin/browser updates is thanks to this hack :)
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    The vulnerability only seemed to affect some of the more recent versions. Maybe from time to time we should downgrade flash to avoid them :))
Joris _

French Bond Issue To Fund Rocket Satellite Projects | SpaceNews.com - 1 views

  • France is focusing on a modular rocket whose different versions would carry government satellites into low Earth orbit and commercial telecommunications satellites weighing up to 6,000 kilograms into geostationary-transfer orbit
LeopoldS

how to use the results our Diigo bookmarks for the benefit of rest of ESA - 11 views

just listening to a company representative - funnily called Michael Jackson - who presents their tool called "shaping tomorrow" who do exactly the same as we do with Diigo but on a commercial basis...

started by LeopoldS on 24 Jun 09 no follow-up yet
Juxi Leitner

Rapid design and manufacture of novel micro-devices - 0 views

  • Starting with a commercial micro-fluidics polymer prototyping kit (from ThinXXS), the project successfully developed a 'template' polymer system into which silicon components can be simply 'plugged in'.
Joris _

SPACE.com -- Railway to the Sky? NASA Ponders New Launch System - 3 views

  • A team of engineers from NASA's Kennedy Space Center in Florida and some of the agency's other field centers are looking into this and other novel launch systems based on cutting-edge technologies.
  • The launch system would require some advancements of existing technologies, but it wouldn't need any brand-new technologies to work
  • Scramjet vehicles could be used as a basis for a commercial launch program
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  • It's not very often you get to work on a major technology revolution
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    I wonder if they are also working with that SCRAMSPACE initiative in Australia that was presented at ESTEC a while back...
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    what about a space elevator!!! quiet old concept (1895), see this link on wiki http://en.wikipedia.org/wiki/Space_elevator
Joris _

American Institute of Aeronautics and Astronautics - Space and the Biological Economy - 0 views

  • the U.S. space program has a robust life science program that is diligently working to innovate new approaches, research and technologies in the fields of biotechnology and bio-nanotechnology science, which are providing new solutions for old problems – including food security, medical needs and energy needs
  • more money be allocated to develop environmentally sound and energy efficient engine programs for commercial and private aviation
  • waste water program
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  • we lack fundamental knowledge about the entire effect of the photosynthesis system on food growth, and that space-based research could provide vital clues to scientists on how to streamline the process to spur more efficient food growth
  • From the start of the space age until 2010 only around 500 people have journeyed into space, but with the advent of private space travel in the next 24 months another 500 people are expected to go into space
  • Wagner indentified prize systems that award monetary prizes to companies or individuals as an effective way to spur innovation and creativity, and urged the Congressional staffers present to consider creating more prize systems to stimulate needed innovation
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    a bunch of ideas, iinitiatives, and good points about upcoming changes in space ...
Joris _

SPACE.com -- Bigelow Aerospace Soars with Private Space Station Deals - 0 views

  • A private space company offering room on inflatable space habitats for research has found a robust international market
  • A question that continues to float through the halls of NASA and the Congress: Is there a commercial market for utilizing space?
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