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annaheffernan

How to make droplets chase each other and self-assemble into devices - 0 views

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    Droplets can be made to chase each other around a track and even self-assemble into devices, simply by mixing two everyday liquids. This remarkable discovery made by scientists in the US has already been used to create beautiful shapes and patterns, and could also be exploited to create optical components that assemble themselves and even to clean surfaces. It looks very like Jojo's self-assembling balls :p
Thijs Versloot

Watch uranium radiation inside a cloud chamber - 6 views

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    Ever wondered what radiation looks like? If you have, I bet you didn't think it would look as cool as this. This is a small piece of uranium mineral sitting in a cloud chamber, which means you can see the process of decay and radiation emission....
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    Once I saw a DIY spark chamber in LIP (CERN associated laboratory). It was the work of a bunch of BSc students, they made it all from scratch, so it seemed to be not that difficult to have one at home. Yet another project for the future 'Experimental Physics' stagiare maybe :)
jcunha

Medical Xpress: Newly discovered hormone mimics the effects of exercise - 0 views

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    "Hormones are molecules that act as the body's signals, triggering various physiological responses. The newly discovered hormone, dubbed "MOTS-c," primarily targets muscle tissue, where it restores insulin sensitivity, counteracting diet-induced and age-dependent insulin resistance."

    Good news for long distance space travelers?
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    as well as lazy couch potatoes
johannessimon81

This incredible electron micrograph shows light as both a particle and a wave - 6 views

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    So basically we can photograph light now. Not just detect photons but photograph LIGHT WAVES. Really clever setup BTW.
annaheffernan

Filamentous laser beams point to new type of phase transition - applications in weather... - 2 views

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    Filaments of plasma created by a high-powered laser beam undergo a similar type of phase transition as liquid percolating through a porous material - that is the conclusion of physicists in Switzerland. The also describe the application of laser filamentation for directed lightening and encouraged rainfall - Isabelle should come back to take a closer look :p
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    Christophe? Isabelle?
Juxi Leitner

Game-playing software holds lessons for neuroscience : Nature News & Comment - 4 views

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    DeepMind actually got a comp-sci paper into nature...
Thijs Versloot

Alien star invaded the Solar System - 1 views

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    An alien star passed through our Solar System just 70,000 years ago, astronomers have discovered. No other star is known to have approached this close to us. An international team of researchers says it came five times closer than our current nearest neighbour - Proxima Centauri.

    Passing straight through the Oort Cloud region. This must have left some sort of mark maybe? A binary system of a red and brown dwarf (8% and 6% solar masses) so maybe not a too significant impact on trajectories in the Oort cloud?
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    I read this earlier and thought it might be another one of those alien conspiracy stuff. Freaky stuff.
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    what about taking a ride on one of these? - especially if they come with some companion planets? when is the next shuttle coming?
annaheffernan

Mining the moon - 1 views

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    Mining the moon - now we know that the Moon's poles hold millions of tonnes of water ice, firms in the US as well as the Indian and Chinese space agencies are planning to mine this resource and sell it to space missions as fuel.
jcunha

Nature Optics: Super vision - 6 views

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    Taking images through opaque, light-scattering layers is a vital capability and essential diagnostic tool in many applications.

    The research group of Prof. Mosk of U. Twente have started doing experiments shooting optical lasers into opaque materials in 2007, and for surprise of everyone, it turn out the light intensity after the opaque material in their experiments was orders of magnitude bigger than expected.

    Following these results they succeeded in taking non-invasive sharp pictures of objects hidden behind a screen of opaqueness, the so referred Super Vision in this Nature overview article.
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    very nice!!!
Marcus Maertens

Psychologists Have Uncovered a Troubling Feature of People Who Seem Nice All the Time -... - 6 views

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    "The irony is that a personality disposition normally seen as antisocial - disagreeableness - may actually be linked to 'pro-social' behavior ..."
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    anybody has access to the pdf of the original article? http://onlinelibrary.wiley.com/doi/10.1111/jopy.12104/abstract
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    have it ....
Ma Ru

PLOS Computational Biology: Ten Simple Rules for Organizing an Unconference - 1 views

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    For future reference...

    At the same time, a crowdsourced article:
    "We began the crowdsourcing by collecting a list of possible rules for the article via a git-controlled repository"
    SVN would be so 2000-ish...
jcunha

Missing link in metal physics explains Earth's magnetic field - 0 views

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    In a work published on Nature (http://www.nature.com/nature/journal/v517/n7536/full/nature14090.html#affil-auth) a new DFT based simulation of convection in Earth's Core iron shows that electron-electron scattering has a similar contribution to electron's thermal vibration.
    The outcome is that using the old dynamo theory the simulation matches the Earth magnetic field experimental results, solving an 80 years old puzzle.
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    Yay to science! I'm always intrigued by related experiments that try to measure material properties at the GPa range. Especially, the efforts of reaching 'metallic hydrogen' (http://en.wikipedia.org/wiki/Metallic_hydrogen), requiring pressures above 25GPa at which hydrogen becomes conductive. It is thought that gas giant planets could have such a core, but no-one has been able to produce/verify this theory as off yet.
annaheffernan

How to make tiny 3D flowers and peacocks from silicon - 1 views

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    "Tilted table", "peacock" and "triple-floor building" are just three of many fantastical 3D structures that have been created by compressing simple 2D patterns. The new technique for creating these objects is called compressive buckling, and has been developed by researchers in the US, China and South Korea.
annaheffernan

Lost Beagle 2 spacecraft found intact on Martian surface - 0 views

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    The UK-led Beagle 2 Mars lander, thought lost on the red planet since 2003, has been found partially deployed on the Martian surface. New images show that it successfully touched down on the planet's surface in 2003 but failed to deploy all four of its solar panels, thereby allowing no communication with scientists on Earth.
annaheffernan

New apps allow smartphone users to join the hunt for ultrahigh-energy cosmic rays - 0 views

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    Two apps - the Distributed Electronic Cosmic-ray Observatory (DECO) and Cosmic Rays Found in Smartphones (CRAYFIS) - transform smartphones into miniature cosmic-ray detectors. They use the CMOS chips inside phones' onboard cameras to detect the secondary particles produced when cosmic rays - energetic, charged subatomic particles arriving from beyond the solar system - collide with air molecules in the Earth's atmosphere
jcunha

Cloud cities for Venus exploration - 3 views

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    Our friends from NASA have come out with a plan to the human exploration of Venus in the time that everyone is speaking about Mars.
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    Love the concept acronym, which pretty much says it all... Not sure which astronaut would fancy floating around in an atmosphere where clouds are made of sulphuric acid.
    Besides I don't see the point of a manned mission if one can't reach the surface.. tele-operation would be easy and so much cheaper.
jcunha

Science magazine breakthrough of the year - 3 views

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    A compilation of the highlights of the year, with Rosetta on the first page. There is a follow-up article about potential breakthroughs for 2015 based on ongoing research very interesting to see as well.
annaheffernan

Physicsworld top 10 breakthroughs of the year - at the top Rosetta - 3 views

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    Physicsworld releases their top 10 breakthroughs of the year 2014, ESA's Rosetta mission tops the list with the achievement of landing on a comet.
Paul N

Have We Been Interpreting Quantum Mechanics Wrong This Whole Time? - 6 views

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    "The experiments involve an oil droplet that bounces along the surface of a liquid. The droplet gently sloshes the liquid with every bounce. At the same time, ripples from past bounces affect its course. The droplet's interaction with its own ripples, which form what's known as a pilot wave, causes it to exhibit behaviors previously thought to be peculiar to elementary particles - including behaviors seen as evidence that these particles are spread through space like waves, without any specific location, until they are measured."

    Pilot-wave theory reresurrected. Maybe something for the next "fundamental" :P physics RF?
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    And for the next 'Experimental Physics Stagiaire' position why not try to do "Unpredictable Tunneling of a Classical Wave-Particle Association" http://stilton.tnw.utwente.nl/people/eddi/Papers/PhysRevLett_TUNNEL.pdf, there are some rumors online that the results of Yves Couder Experiments can be reproduced with simple DIY vibrating tables!

    It is very funny to see the videos of the MIT's replication of this experiment (with lightening legends for those who are uncomfortable with the concepts involved https://www.youtube.com/watch?v=YF5iHQMjcsM)
Ma Ru

Shop which knows your name - 6 views

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    I'm sure Leo will love it. Yet another argument not to have a facebook account or a smartphone.
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    absolutely ... so you ditched yours also already?
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    Ditched? I never had either!

    But then on the other hand a recent Dilbert summarised me pretty well...
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    so you also don't have a mobile phone? I thought I knew only one person of my age who does not have one yet ... congratulations
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