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Mapping the spider genome: Surprising similarities to humans -- ScienceDaily - 1 views

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    Looks like we are all spider men and women :)
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The Universe Is Programmable. We Need an API for Everything - 3 views

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    Interesting ideas - though some metaphors are a bit far fetched. Personally, I think it could be interesting if every scientific article would also have a how-to or tutorial section that gives a recipe of how to apply the newly gained knowledge. Of course, that might be tough to do... :-)
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    The API of the world is already there (a bit), it is the previous knowledge developed by others. Open Source projects such as the wheel or the brick, allow everyday amazing new APPs to be build such as buildings and cars .... There still is merit, though, in learning from software developments techniques in the everyday world projects. This is indeed the motivation for the ACT to do work in open source (SOCIS, GSoC) and push its members to use stuff like wiki, svn, github, jenkins, and alike. This way we are performing and fostering (http://www.oxforddictionaries.com/definition/english/foster) research into working methods in the hope we will be able to export some of its benefit to the larger ESA.
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Dolphin inspired radar #biomimicry - 2 views

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    The device, like dolphins, sends out two pulses in quick succession to allow for a targeted search for semiconductor devices, cancelling any background "noise",
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    and it sends out two pulses of opposite polarity, in succession, such that a semiconductor changes the negative to a positive one, amplifying the returning signal. Very interesting. Maybe we can combine different frequencies for identifying a single variable in earth observation. We already use more that one frequencies but for identifying one variable each.
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    Could it be used to measure ocean acidification? I found a study that links sound wave propagation with ocean acidity. Maybe we are able to do such measurement from space even? "Their paper, "Unanticipated consequences of ocean acidification: A noisier ocean at lower pH," published last week in the journal Geophysical Research Letters, found that fossil fuels are turning up the ocean's volume. Since the beginning of the Industrial Revolution, the overall pH of the world's oceans has dropped by about 0.1 units, with more of the changes concentrated closer to the poles. The authors found that sound absorption has decreased by 15 percent in parts of the North Atlantic and by 10 percent throughout the Atlantic and Pacific"
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    The last time I asked an oceanographer for the use of acoustic waves, she said it is still a bit problematic method to take into account its data, but we were referring to measuring ocean circulation. It may be more conclusive for PH measurements, though. The truth is that there is a whole underwater network with pulse emmitters/receivers covering the North Atlantic basin, remnant infrastructure for spying activities in the WW2 and in the cold war, that stays unexploited. We should look more into this idea
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Heisenbergs Dog, the foundation of quantum computing - 1 views

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    A Heisenberg's dog is the central unit in a quantum computer that factors prime numbers. We report the outcome of a proof-of-principle Gedankenexperiment in which the number 3 was factored and good agreement was found both with an analytical theoretical prediction and with the results of a quantum Las Vegas calculation. Other future applications of Heisenberg's dog are hinted at. The anonymous reports of the referees and our reply to them are reproduced in appendix A and appendix B respectively.
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Ultimate Tic-Tac-Toe - 5 views

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    Tic-tac-toe for scientists... Plus a questions for the mathematicians, how many possible outcomes does this version have?
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    The game is actually really cool!
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    this seems like an important improvement: "As many have pointed out, the rules as I've described them are not the best. My gambit is too strong, and can be extended into a guaranteed win for X. So I recommend modifying "Clarifying Rule #1″ to say: If you are sent to a board that's already been won, you may go wherever you like."
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Black Hole Analogue Discovered in South Atlantic Ocean - 0 views

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    Vortices in the South Atlantic are mathematically equivalent to black holes, say physicists, an idea that could lead to new ways of understanding how currents transport oil and garbage across oceans Black holes are regions of spacetime in which gravity is strong enough to prevent anything escaping, even light.
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Study finds link between the atmospheric rivers and climate - 1 views

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    Atmospheric rivers, short-lived wind tunnels are created in the upper troposphere and carry vast amounts of water. They 'fuel' from the tropical Pacific reservoir and cause heavy precipitation events and even floods to mid-latitude land, as soon as they encounter the Sierra mountains. The new finding is that two inter-hemispheric climatic oscillation modes allow for their creation, as soon as they are found in a certain phase combination.
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    Could we conceivably control these like we're thinking to do with taifuns? :)) Would be geoengineering at its finest
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New fabrication technique could provide breakthrough for solar energy systems - 3 views

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    The principle behind that is Nantenna.
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    this is fantastic!!!! waiting of somebody to make this happen since years The size of the gap is critical because it creates an ultra-fast tunnel junction between the rectenna's two electrodes, allowing a maximum transfer of electricity. The nanosized gap gives energized electrons on the rectenna just enough time to tunnel to the opposite electrode before their electrical current reverses and they try to go back. The triangular tip of the rectenna makes it hard for the electrons to reverse direction, thus capturing the energy and rectifying it to a unidirectional current. Impressively, the rectennas, because of their extremely small and fast tunnel diodes, are capable of converting solar radiation in the infrared region through the extremely fast and short wavelengths of visible light - something that has never been accomplished before. Silicon solar panels, by comparison, have a single band gap which, loosely speaking, allows the panel to convert electromagnetic radiation efficiently at only one small portion of the solar spectrum. The rectenna devices don't rely on a band gap and may be tuned to harvest light over the whole solar spectrum, creating maximum efficiency. Through atomic layer deposition, Willis has shown he is able to precisely coat the tip of the rectenna with layers of individual copper atoms until a gap of about 1.5 nanometers is achieved. The process is self-limiting and stops at 1.5 nanometer separation The size of the gap is critical because it creates an ultra-fast tunnel junction between the rectenna's two electrodes, allowing a maximum transfer of electricity. The nanosized gap gives energized electrons on the rectenna just enough time to tunnel to the opposite electrode before their electrical current reverses and they try to go back. The triangular tip of the rectenna makes it hard for the electrons to reverse direction, thus capturing the energy and rectifying it to a unidirectional current. Impressively, the rectennas, because of th
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Why is life left-handed? The answer is in the stars - 2 views

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    While most humans are right-handed, our proteins are made up of lefty molecules. In the same way your left and right hands mirror one another, molecules can assemble in two reflected structures. Life prefers the left-handed version, which is puzzling since both mirrored types form equally in the laboratory.
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Microscopic fish are 3-D-printed to do more than swim: Researchers demonstrate a novel ... - 1 views

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    Useful for space exploration, e.g. subsurface water reservoirs such as Europa or Enceladus? Nanoengineers at the University of California, San Diego used an innovative 3-D printing technology they developed to manufacture multipurpose fish-shaped microrobots -- called microfish -- that swim around efficiently in liquids, are chemically powered by hydrogen peroxide and magnetically controlled.
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Why are the Dutch so tall - 1 views

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    Following a discussion with Kzrystof, where he came up with gravity anomaly reasons for why Dutch people are so tall. Funny to see this fact gathers scientific attention as well.
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    We solved this darwinian riddle years ago. They must be tall in order to find their partners above the fog and thus reproduce in the dutch weather.
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Portable ultra-broadband lasers could be key to next-generation sensors - 0 views

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    Quantum Cascade Lasers are rising in the mid-infrared region, the so-called fingerprint zone of the electromagnetic spectrum for a whole bunch of chemical species that we are most of times interested in sensing. One more sign of the underlying importance of this technology comes just by seeing NSF, USHS, Naval Air Command and NASA as the main monetary contributors to this research.
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'Doomsday Ark' to be Housed on the Moon -A Remote Access Toolkit to Rebuild the Human Race - 5 views

  • our future may reside on the Moon if plans.being drawn up for a “Doomsday ark” on the moon by the European Space Agency are carried through.
  • whether living organisms could survive, European Space Agency scientists are hoping to experiment with growing tulips on the moon within the next decade.
  • would initially be run by robots
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    did not know ESA was doing that!
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    too late, the world will in end in 2012 ......... I fail to see in which scenario this would be better than a couple of vaults on Earth (since there would be no humans on the moon). But if tulips on the moon can convince politicians, I'm all for it.
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    "The first flowers - tulips or arabidopsis, a plant widely used in research - could be grown in 2012 or 2015 according to Bernard Foing, chief scientist at the agency's research department." - Bernhard strikes again :-)
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The World's Most Unusual Outsourcing Destination - PCWorld Business Center - 5 views

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    As discussed during lunchtime...
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    "Development work that requires an Internet connection is transferred across the border to China." What are programmers doing 'while the code is compiling'? Play table tennis?
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    fantastic ... I particularly like: "Kim Jong Il, the de-facto leader of the country, declared people who couldn't use computers to be one of the three fools of the 21st century. (The others, he said, are smokers and those ignorant of music.)"
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BBC News - Hayabusa capsule particles may be from asteroid - 3 views

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    "Researchers hope the minute particles are from the asteroid"
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Saturn's rings gave birth to mini-moons - 0 views

  • Low density, recent surfaces, and somewhat oblong shapes all hint that some of these moons are likely to be less than 100 million years old.
  • Researchers suspected that the moons might have originated through some sort of interactions within the A Ring, but the number of bodies involved made modeling the system too computationally challenging. Fortunately, Moore's Law caught up with Cassini, and today's issue of Nature contains a paper that describes a model that successfully reproduces the pattern of moons we now observe.
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Dynamic Coalition on Internet and Climate Change - 0 views

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    IGF - The Internet Governance Forum. Did you know that the Internet and its usage are responsible for 5 per cent of the world's total electricity consumption
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Top 100 Most Visited Articles on Wikipedia in 2009 - 2 views

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    the most impressive thing about this blog, TechXav is that it is run by 14-15 year olds..... And it's not only TechXav what they are doing, wow
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Physics - Small-scale hydraulics - 1 views

  • Taking a cue from biology, scientists are now designing nanofluidic devices in which molecular interactions at the walls of a narrow channel are engineered to control fluid flow.
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You Are Now Free to Move About the Insect - ScienceNOW - 1 views

  • Researchers thought that flies chose their altitude based on optic flow, a phenomenon familiar to anyone who has ridden an airplane.
  • The team's observations, published online today in Current Biology, suggest that flies base their cruising altitude on horizontal edges and landmarks—such as table surfaces or tree tops—and not on how fast the ground is moving beneath them. The edge-tracking strategy may enable flies to keep tabs on possible landing spots.
  • This may be the general principle" for all flying insects, he says.
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