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Dario Izzo

Space Oddity - YouTube - 4 views

www.youtube.com/watch

shared by Dario Izzo on 27 May 13 - No Cached
  • Dario Izzo on 27 May 13
     
    And thats why we do what we do :) Enjoy!!
  • ...2 more comments...
  • LeopoldS on 28 May 13
     
    did you see the comment "This is the greatest thing to come out of ISS." :-)
  • johannessimon81 on 28 May 13
     
    Coming next: Dancing bear jumps through burning hoop! ... on Asteroid!!! :-P But seriously - Chris Hadfield did an amazing job in getting ordinary Earthlings interested in space. His educational videos can be found here: http://www.youtube.com/playlist?list=PLUaartJaon3LV-ZQ4J3bNQj4VNVG2ByIG
  • Luís F. Simões on 28 May 13
     
    and to poison the waters of an amazing performance, here's the relevant(?) copyright law: http://www.economist.com/blogs/economist-explains/2013/05/economist-explains-12?fsrc=scn/tw_ec/how_does_copyright_work_in_space_
  • Ma Ru on 28 May 13
     
    And in case you wonder, this is *not* the most expensive music video ever made. Also, launching his guitar to the orbit was still far cheaper than the cost of some guitars sold on earth. Where else can this info come from if not http://what-if.xkcd.com/45/
santecarloni

From Bench to Bunker - The Chronicle Review - The Chronicle of Higher Education - 0 views

chronicle.com/...132743

technology science

shared by santecarloni on 12 Jul 12 - No Cached
  • santecarloni on 12 Jul 12
     
    How a 1960s discovery in neuroscience spawned a military project
Luke O'Connor

Flying robot quadrotors have better rhythm than you - 2 views

www.guardian.co.uk/...ing-robot-quadrotors-ted-video

shared by Luke O'Connor on 02 Mar 12 - No Cached
  • Luke O'Connor on 02 Mar 12
     
    Robotics scientists at TED unleash co-ordinated drones that mimic bird behavior to play the James Bond theme song At TED2012, the University of Pennsylvania's deputy dean for education Vijay Kuma showed off his latest accomplishment in robotics: a co-ordinated rendition of the James Bond theme song.
Athanasia Nikolaou

Why mental illness is on the rise in academia - 2 views

www.theguardian.com/...ng-problem-pressure-university

Social

shared by Athanasia Nikolaou on 06 Mar 14 - No Cached
  • Athanasia Nikolaou on 06 Mar 14
     
    Interesting discussion is going about, on how work anxiety is spreading in academia, with possible mental consequences. And with robust links to the "Doing What You Love" motto of life/work. Could be proven an unsustainable model though. Recalling of Higgs' recent declaration, that today's Academia productivity demands would be hectic for him, could point to the direction of the problem and the solution...?
johannessimon81

Bill Nye - The Science Guy on Jupiter and the Juno spacecraft - 0 views

www.youtube.com/watch

science education

shared by johannessimon81 on 19 Oct 13 - No Cached
  • johannessimon81 on 19 Oct 13
     
    Great explanations of space stuff for people who are not experts (for example children) :-)
Alexander Wittig

Outernet: Humanity's Public Library - 1 views

www.outernet.is/en

technology space

shared by Alexander Wittig on 11 Jun 15 - No Cached
LeopoldS liked it
  • Alexander Wittig on 11 Jun 15
     
    Humanity's Public Library #ImagineIf censorship did not exist information was free for everyone, education was truly universal, every home had a library, disasters could be anticipated. Get your Lantern Portable, solar-powered, multi-frequency Outernet receiver. Maybe we should get/build one of those receivers for the ACT just because it's geeky:)
andreiaries

NASA - MOONBASE ALPHA - 1 views

www.nasa.gov/...index.html

nasa moonbase game

shared by andreiaries on 02 Jul 10 - Cached
  • andreiaries on 02 Jul 10
     
    ........... COMING JULY 6th
jmlloren

Exotic matter : Insight : Nature - 5 views

www.nature.com/...index.html

nan phy

shared by jmlloren on 03 Aug 10 - Cached
LeopoldS liked it
  • jmlloren on 03 Aug 10
     
    Trends in materials and condensed matter. Check out the topological insulators. amazing field.
  • ...12 more comments...
  • Luzi Bergamin on 03 Aug 10
     
    Aparently very interesting, will it survive the short hype? Relevant work describing mirror charges of topological insulators and the classical boundary conditions were done by Ismo and Ari. But the two communities don't know each other and so they are never cited. Also a way to produce new things...
  • jmlloren on 04 Aug 10
     
    Thanks for noticing! Indeed, I had no idea that Ari (don't know Ismo) was involved in the field. Was it before Kane's proposal or more recently? What I mostly like is that semiconductors are good candidates for 3D TI, however I got lost in the quantum field jargon. Yesterday, I got a headache trying to follow the Majorana fermions, the merons, skyrnions, axions, and so on. Luzi, are all these things familiar to you?
  • Luzi Bergamin on 04 Aug 10
     
    Ismo Lindell described in the early 90's the mirror charge of what is now called topological insulator. He says that similar results were obtained already at the beginning of the 20th century... Ismo Lindell and Ari Sihvola in the recent years discussed engineering aspects of PEMCs (perfect electro-megnetic conductors,) which are more or less classical analogues of topological insulators. Fundamental aspects of PEMCs are well knwon in high-energy physics for a long time, recent works are mainly due to Friedrich Hehl and Yuri Obukhov. All these works are purely classical, so there is no charge quantisation, no considerations of electron spin etc. About Majorana fermions: yes, I spent several years of research on that topic. Axions: a topological state, of course, trivial :-) Also merons and skyrnions are topological states, but I'm less familiar with them.
  • LeopoldS on 04 Aug 10
     
    "Non-Abelian systems1, 2 contain composite particles that are neither fermions nor bosons and have a quantum statistics that is far richer than that offered by the fermion-boson dichotomy. The presence of such quasiparticles manifests itself in two remarkable ways. First, it leads to a degeneracy of the ground state that is not based on simple symmetry considerations and is robust against perturbations and interactions with the environment. Second, an interchange of two quasiparticles does not merely multiply the wavefunction by a sign, as is the case for fermions and bosons. Rather, it takes the system from one ground state to another. If a series of interchanges is made, the final state of the system will depend on the order in which these interchanges are being carried out, in sharp contrast to what happens when similar operations are performed on identical fermions or bosons." wow, this paper by Stern reads really weired ... any of you ever looked into this?
  • jmlloren on 04 Aug 10
     
    C'mon Leopold, it's as trivial as the topological states, AKA axions! Regarding the question, not me!
  • LeopoldS on 04 Aug 10
     
    just looked up the wikipedia entry on axions .... at least they have some creativity in names giving: "In supersymmetric theories the axion has both a scalar and a fermionic superpartner. The fermionic superpartner of the axion is called the axino, the scalar superpartner is called the saxion. In some models, the saxion is the dilaton. They are all bundled up in a chiral superfield. The axino has been predicted to be the lightest supersymmetric particle in such a model.[24] In part due to this property, it is considered a candidate for the composition of dark matter.[25]"
  • jmlloren on 04 Aug 10
     
    Thank's Leopold. Sorry Luzi for being ironic concerning the triviality of the axions. Now, Leo confirmed me that indeed is a trivial matter. I have problems with models where EVERYTHING is involved.
  • Luzi Bergamin on 04 Aug 10
     
    Well, that's the theory of everything, isn't it?? Seriously: I don't think that theoretically there is a lot of new stuff here. Topological aspects of (non-Abelian) theories became extremely popular in the context of string theory. The reason is very simple: topological theories are much simpler than "normal" and since string theory anyway is far too complicated to be solved, people just consider purely topological theories, then claiming that this has something to do with the real world, which of course is plainly wrong. So what I think is new about these topological insulators are the claims that one can actually fabricate a material which more or less accurately mimics a topological theory and that these materials are of practical use. Still, they are a little bit the poor man's version of the topological theories fundamental physicists like to look at since electrdynamics is an Abelian theory.
  • jmlloren on 04 Aug 10
     
    I have the feeling, not the knowledge, that you are right. However, I think that the implications of this light quantum field effects are great. The fact of being able to sustain two currents polarized in spin is a technological breakthrough.
  • LeopoldS on 04 Aug 10
     
    not sure how much I can contribute to your apparently educated debate here but if I remember well from my work for the master, these non-Abelian theories were all but "simple" as Luzi puts it ... and from a different perspective: to me the whole thing of being able to describe such non-Abelian systems nicely indicates that they should in one way or another also have some appearance in Nature (would be very surprised if not) - though this is of course no argument that makes string theory any better or closer to what Luzi called reality ....
  • Luzi Bergamin on 04 Aug 10
     
    Well, electrodynamics remains an Abelian theory. From the theoretical point of view this is less interesting than non-Abelian ones, since in 4D the fibre bundle of a U(1) theory is trivial (great buzz words, eh!) But in topological insulators the point of view is slightly different since one always has the insulator (topological theory), its surrounding (propagating theory) and most importantly the interface between the two. This is a new situation that people from field and string theory were not really interested in.
  • Dario Izzo on 04 Aug 10
     
    guys... how would you explain this to your gran mothers?
  • jmlloren on 05 Aug 10
  • LeopoldS on 07 Aug 10
     
    *you* tried *your* best .... ??
Ma Ru

Train Like an Astronaut ESA Initiative - 2 views

www.trainlikeanastronaut.org/...mission-data

space fun fitness education

shared by Ma Ru on 21 Oct 10 - No Cached
  • Ma Ru on 21 Oct 10
     
    You know what to do...
LeopoldS

Times Higher Education - Top nations in physics - 5 views

www.timeshighereducation.co.uk/story.asp

statistics physics PHY

shared by LeopoldS on 18 Feb 10 - Cached
  • LeopoldS on 18 Feb 10
     
    another stat on publication comparisons - this time physics
  • Nicholas Lan on 26 Feb 10
     
    see, it's not just football where Scotland compete separately from england
Francesco Biscani

What Should We Teach New Software Developers? Why? | January 2010 | Communications of t... - 3 views

cacm.acm.org/...fulltext

inf

shared by Francesco Biscani on 15 Jan 10 - Cached
Dario Izzo liked it
  • Industry wants to rely on tried-and-true tools and techniques, but is also addicted to dreams of "silver bullets," "transformative breakthroughs," "killer apps," and so forth.
  • This leads to immense conservatism in the choice of basic tools (such as programming languages and operating systems) and a desire for monocultures (to minimize training and deployment costs).
  • The idea of software development as an assembly line manned by semi-skilled interchangeable workers is fundamentally flawed and wasteful.
  • Francesco Biscani on 15 Jan 10
     
    Nice opinion piece by the creator of C++ Bjarne Stroustrup. Substitute "industry" with "science" and many considerations still apply :)
  • Juxi Leitner on 18 Jan 10
     
    "for many, "programming" has become a strange combination of unprincipled hacking and invoking other people's libraries (with only the vaguest idea of what's going on). The notions of "maintenance" and "code quality" are typically forgotten or poorly understood. " ... seen so many of those students :( and ad "My suggestion is to define a structure of CS education based on a core plus specializations and application areas", I am not saying the austrian university system is good, but e.g. the CS degrees in Vienna are done like this, there is a core which is the same for everybody 4-5 semester, and then you specialise in e.g. software engineering or computational mgmt and so forth, and then after 2 semester you specialize again into one of I think 7 or 8 master degrees ... It does not make it easy for industry to hire people, as I have noticed, they sometimes really have no clue what the difference between Software Engineering is compared to Computational Intelligence, at least in HR :/
nikolas smyrlakis

mentored by the Advanced Concepts Team for Google Summer of Code 2010 - 4 views

socghop.appspot.com/...advancedconceptsteam

pagmo google summerofcode

shared by nikolas smyrlakis on 19 Mar 10 - Cached
LeopoldS liked it
  • nikolas smyrlakis on 19 Mar 10
     
    you propably already know,I post it for the twitter account and for your comments
  • ...4 more comments...
  • LeopoldS on 20 Mar 10
     
    once again one of these initiatives that came up from a situation and that would never have been possible with a top-down approach .... fantastic! and as Dario said: we are apparently where NASA still has to go with this :-)
  • Joris _ on 20 Mar 10
     
    Actually, NASA Ames did that already within the NASA Open Source Agreement in 2008 for a V&V software!
  • Joris _ on 20 Mar 10
  • LeopoldS on 20 Mar 10
     
    indeed ... you are right .... interesting project btw - they started in 1999, were in 2005 the first NASA project on Sourceforge and won several awards .... then this entry why they did not participate last year: "05/01/09: Skipping this years Google Summer-of-Code - many of you have asked why we are not participating in this years Summer of Code. The answer is that both John and Peter were too busy with other assignments to set this up in time. We will be back in 2010. At least we were able to compensate with a limited number of NASA internships to continue some of last years projects." .... but I could not find them in this years selected list - any clue?
  • LeopoldS on 20 Mar 10
     
    but in any case, according to the apple guru, Java is a dying technology, so their project might as well ...
  • Joris _ on 21 Mar 10
     
    They participate under the name "The Java Pathfinder Team" (http://babelfish.arc.nasa.gov/trac/jpf/wiki/events/soc2010). It is actually a very useful project for both education and industry (Airbus created a consortium on model checking soft, and there is a lot of research on it) As far as I know, TAS had some plans of using Java onboard spacecrafts, 2 years ago. Not sure the industry is really sensible about Jobs' opinions ;) particularly if there is no better alternative!
Ma Ru

ESA highlights online games as key future technology - 3 views

www.esa.int/...SEMHGBFKZ6G_index_0.html

technology inf online gaming education

shared by Ma Ru on 23 Mar 10 - Cached
  • Ma Ru on 23 Mar 10
     
    Did you know that? (Obviously you should, as it's GSP)
  • andreiaries on 24 Mar 10
     
    I was actually at the mid-term review in Sweden last year. Also played the game for a few minutes. The final presentation is next week in case anyone in the ACT is interested.
Juxi Leitner

Open Source Satellite Initiative | machine project - 3 views

machineproject.com/...satellite

education tech outreach satellites DIY

shared by Juxi Leitner on 20 May 10 - Cached
LeopoldS liked it
  • Juxi Leitner on 20 May 10
     
    All the satellite-related systems (except for the rocket to launch it) are DIY programs -- designed so that regular people may also have the chance of developing and eventually launching their own.
  • ...2 more comments...
  • Joris _ on 20 May 10
     
    The book is actually funny to read ... but this is not serious! Is it ?
  • Juxi Leitner on 20 May 10
  • Joris _ on 20 May 10
     
    I was saying that mainly because of some flaws - the piggy-pack installation, no dedicated stage, the limited control, ... It is so far very funny, but once he can fill all the gaps, it should be an excellent initiative - although careful about the debris if anyone has its own ;p
  • LeopoldS on 26 May 10
     
    his quote: "when art becomes practical, we call it technology; when technology becomes useless, we call it art" ... this is probably the later one ....
Tobias Seidl

Office of Research Integrity - 0 views

ori.hhs.gov/...plagiarism

Plagiarism

shared by Tobias Seidl on 14 Aug 09 - Cached
  • Tobias Seidl on 14 Aug 09
     
    Avoiding plagiarism, self-plagiarism, and other questionable writing practices: A guide to ethical writing
Joris _

Travel and creativity: Expats at work | The Economist - 0 views

www.economist.com/...displaystory.cfm

creativity education inspiration

shared by Joris _ on 19 May 09 - Cached
LeopoldS liked it
  • LeopoldS on 20 May 09
     
    well - might well be that the first experiments just measured that Americans are a bit more stupid or don't remember what a candle is ... :-)
ESA ACT

NASA.gen.y.pdf (application/pdf-Objekt) - 0 views

images.spaceref.com/...NASA.gen.y.pdf

NASA presentation GenerationY Creativity education future games forecast web2.0 Web3.0 virtual SemanticWeb

shared by ESA ACT on 24 Apr 09 - No Cached
  • ESA ACT on 24 Apr 09
     
    NASA should use social media to make generation Y interested in space
ESA ACT

Light and Matter: educational materials for physics and astronomy - 0 views

www.lightandmatter.com

phy book online

shared by ESA ACT on 24 Apr 09 - Cached
  • ESA ACT on 24 Apr 09
     
    online books on physics
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