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Really nice article about change in the hierarchy model of large organizations (e.g. US... - 2 views

www.forbes.com/...ingredient-part-2-the-military Leadership
shared by johannessimon81 on 01 Aug 12 - No Cached
  • johannessimon81 on 01 Aug 12
     
    "Real leadership is about transforming the system, not just succeeding within or despite the system. Today, we know how to run organizations in ways that that lift up the human spirit, both for those doing the work and those for whom the work is done. So why don't we get on with it?"
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Light Table - a new IDE concept - 2 views

www.chris-granger.com/...ight-table---a-new-ide-concept Inf
shared by dejanpetkow on 16 May 12 - No Cached
  • dejanpetkow on 16 May 12
     
    "Despite the dramatic shift toward simplification in software interfaces, the world of development tools continues to shrink our workspace with feature after feature in every release. Even with all of these things at our disposal, we're stuck in a world of files and forced organization - why are we still looking all over the place for the things we need when we're coding?"
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Metamaterials + Wireless Power Transfer - 2 views

www.sciencedaily.com/...140110153201.htm technology science phy
shared by dejanpetkow on 21 Jan 14 - No Cached
LeopoldS liked it
  • dejanpetkow on 21 Jan 14
     
    Put together two ACT topics and see what happens.
  • LeopoldS on 22 Jan 14
     
    I remember discussing this briefly and then discarding the idea - but don't remember why any more; duncan?
  • Thijs Versloot on 23 Jan 14
     
    Well, I think that although the antenna is small, you counteract this with a much large metameterial lens. Probably if you design an antenna of a similar size to the 'lens' you can couple power equally well over the same distance. Then again, further optimization might help improve the size. Maybe in the end you want to combine both together, optimization of the antenna, including a metamaterials lens.
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Hacking your 3D printer (video) - 0 views

gizmodo.com/y-skilled-air-hocke-1518317429 technology fun robotics
shared by Thijs Versloot on 10 Feb 14 - No Cached
  • Thijs Versloot on 10 Feb 14
     
    Why print stuff if you can turn it into an amazing air hockey table! Note, you will probably keep losing...
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14 Time Travelling Celebrities - 1 views

www.newageman.co.uk/14-time-travelling-celebrities fun time travel
shared by Luís F. Simões on 25 Feb 14 - No Cached
  • Do you ever wonder why some celebrities don't seem to age? The New Age Man has uncovered insurmountable evidence proving that some celebrities are time travelling time lords. Don't believe it? Take a look at the evidence with your own eyes.
  • Luís F. Simões on 25 Feb 14
     
    "The Man from Earth" is real !! and there are apparently many of them around...
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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...?
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The people who change the world... #thenextweb - 1 views

thenextweb.com/...stop-giving-f-people-think fun
shared by Thijs Versloot on 04 Mar 14 - No Cached
  • Thijs Versloot on 04 Mar 14
     
    Love tip 3.. thats why I am at the ACT of course :) 3. Surround yourself with pros Surround yourself with people who are self-assured, and live life without comprising their core values. These people will rub off on you quickly. finally.. The world is already full of people who obey the status quo. But the people who don't give a fuck are the ones that change the world.
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Will robots be smarter than humans by 2029? - 2 views

robohub.org/be-smarter-than-humans-by-2029 AI
shared by Guido de Croon on 10 Mar 14 - No Cached
  • Guido de Croon on 10 Mar 14
     
    Nice discussion about the singularity. Made me think of drinking coffee with Luis... It raises some issues such as the necessity of embodiment, etc.
  • ...9 more comments...
  • Luís F. Simões on 12 Mar 14
     
    "Kurzweilians"... LOL. Still not sold on embodiment, btw.
  • Ma Ru on 12 Mar 14
     
    The biggest problem with embodiment is that, since the passive walkers (with which it all started), it hasn't delivered anything really interesting...
  • Paul N on 13 Mar 14
     
    The problem with embodiment is that it's done wrong. Embodiment needs to be treated like big data. More sensors, more data, more processing. Just putting a computer in a robot with a camera and microphone is not embodiment.
  • Marcus Maertens on 14 Mar 14
     
    I like how he attacks Moore's Law. It always looks a bit naive to me if people start to (ab)use it to make their point. No strong opinion about embodiment.
  • johannessimon81 on 14 Mar 14
     
    @Paul: How would embodiment be done RIGHT?
  • Guido de Croon on 16 Mar 14
     
    Embodiment has some obvious advantages. For example, in the vision domain many hard problems become easy when you have a body with which you can take actions (like looking at an object you don't immediately recognize from a different angle) - a point already made by researchers such as Aloimonos.and Ballard in the end 80s / beginning 90s. However, embodiment goes further than gathering information and "mental" recognition. In this respect, the evolutionary robotics work by for example Beer is interesting, where an agent discriminates between diamonds and circles by avoiding one and catching the other, without there being a clear "moment" in which the recognition takes place. "Recognition" is a behavioral property there, for which embodiment is obviously important. With embodiment the effort for recognizing an object behaviorally can be divided between the brain and the body, resulting in less computation for the brain. Also the article "Behavioural Categorisation: Behaviour makes up for bad vision" is interesting in this respect. In the field of embodied cognitive science, some say that recognition is constituted by the activation of sensorimotor correlations. I wonder to which extent this is true, and if it is valid for extremely simple creatures to more advanced ones, but it is an interesting idea nonetheless. This being said, if "embodiment" implies having a physical body, then I would argue that it is not a necessary requirement for intelligence. "Situatedness", being able to take (virtual or real) "actions" that influence the "inputs", may be.
  • Ma Ru on 17 Mar 14
     
    @Paul While I completely agree about the "embodiment done wrong" (or at least "not exactly correct") part, what you say goes exactly against one of the major claims which are connected with the notion of embodiment (google for "representational bottleneck"). The fact is your brain does *not* have resources to deal with big data. The idea therefore is that it is the body what helps to deal with what to a computer scientist appears like "big data". Understanding how this happens is key. Whether it is the problem of scale or of actually understanding what happens should be quite conclusively shown by the outcomes of the Blue Brain project.
  • johannessimon81 on 17 Mar 14
     
    Wouldn't one expect that to produce consciousness (even in a lower form) an approach resembling that of nature would be essential? All animals grow from a very simple initial state (just a few cells) and have only a very limited number of sensors AND processing units. This would allow for a fairly simple way to create simple neural networks and to start up stable neural excitation patterns. Over time as complexity of the body (sensors, processors, actuators) increases the system should be able to adapt in a continuous manner and increase its degree of self-awareness and consciousness. On the other hand, building a simulated brain that resembles (parts of) the human one in its final state seems to me like taking a person who is just dead and trying to restart the brain by means of electric shocks.
  • Paul N on 17 Mar 14
     
    Actually on a neuronal level all information gets processed. Not all of it makes it into "conscious" processing or attention. Whatever makes it into conscious processing is a highly reduced representation of the data you get. However that doesn't get lost. Basic, low processed data forms the basis of proprioception and reflexes. Every step you take is a macro command your brain issues to the intricate sensory-motor system that puts your legs in motion by actuating every muscle and correcting every step deviation from its desired trajectory using the complicated system of nerve endings and motor commands. Reflexes which were build over the years, as those massive amounts of data slowly get integrated into the nervous system and the the incipient parts of the brain. But without all those sensors scattered throughout the body, all the little inputs in massive amounts that slowly get filtered through, you would not be able to experience your body, and experience the world. Every concept that you conjure up from your mind is a sort of loose association of your sensorimotor input. How can a robot understand the concept of a strawberry if all it can perceive of it is its shape and color and maybe the sound that it makes as it gets squished? How can you understand the "abstract" notion of strawberry without the incredibly sensible tactile feel, without the act of ripping off the stem, without the motor action of taking it to our mouths, without its texture and taste? When we as humans summon the strawberry thought, all of these concepts and ideas converge (distributed throughout the neurons in our minds) to form this abstract concept formed out of all of these many many correlations. A robot with no touch, no taste, no delicate articulate motions, no "serious" way to interact with and perceive its environment, no massive flow of information from which to chose and and reduce, will never attain human level intelligence. That's point 1. Point 2 is that mere pattern recogn
  • Ma Ru on 18 Mar 14
     
    All information *that gets processed* gets processed but now we arrived at a tautology. The whole problem is ultimately nobody knows what gets processed (not to mention how). In fact an absolute statement "all information" gets processed is very easy to dismiss because the characteristics of our sensors are such that a lot of information is filtered out already at the input level (e.g. eyes). I'm not saying it's not a valid and even interesting assumption, but it's still just an assumption and the next step is to explore scientifically where it leads you. And until you show its superiority experimentally it's as good as all other alternative assumptions you can make. I only wanted to point out is that "more processing" is not exactly compatible with some of the fundamental assumptions of the embodiment. I recommend Wilson, 2002 as a crash course.
  • Paul N on 24 Mar 14
     
    These deal with different things in human intelligence. One is the depth of the intelligence (how much of the bigger picture can you see, how abstract can you form concept and ideas), another is the breadth of the intelligence (how well can you actually generalize, how encompassing those concepts are and what is the level of detail in which you perceive all the information you have) and another is the relevance of the information (this is where the embodiment comes in. What you do is to a purpose, tied into the environment and ultimately linked to survival). As far as I see it, these form the pillars of human intelligence, and of the intelligence of biological beings. They are quite contradictory to each other mainly due to physical constraints (such as for example energy usage, and training time). "More processing" is not exactly compatible with some aspects of embodiment, but it is important for human level intelligence. Embodiment is necessary for establishing an environmental context of actions, a constraint space if you will, failure of human minds (i.e. schizophrenia) is ultimately a failure of perceived embodiment. What we do know is that we perform a lot of compression and a lot of integration on a lot of data in an environmental coupling. Imo, take any of these parts out, and you cannot attain human+ intelligence. Vary the quantities and you'll obtain different manifestations of intelligence, from cockroach to cat to google to random quake bot. Increase them all beyond human levels and you're on your way towards the singularity.
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IPCC models getting mushy | Financial Post - 2 views

opinion.financialpost.com/...ipcc-models-getting-mushy models climate
shared by Dario Izzo on 17 Sep 13 - No Cached
  • Dario Izzo on 17 Sep 13
     
    why am I not surprised .....
  • Athanasia Nikolaou on 17 Sep 13
     
    http://www.academia.edu/4210419/Can_climate_models_explain_the_recent_stagnation_in_global_warming A view of well-respected scientists on how to proceed from here, that was rejected from Nature. In any case, a long way to go...
  • LeopoldS on 18 Sep 13
     
    unfortunately it's too early to cheer and burn more coal ... there is also a nice podcast associated to this paper from nature Recent global-warming hiatus tied to equatorial Pacific surface cooling Yu Kosaka & Shang-Ping Xie Nature 501, 403-407 (19 September 2013) doi:10.1038/nature12534 Received 18 June 2013 Accepted 08 August 2013 Published online 28 August 2013 Despite the continued increase in atmospheric greenhouse gas concentrations, the annual-mean global temperature has not risen in the twenty-first century1, 2, challenging the prevailing view that anthropogenic forcing causes climate warming. Various mechanisms have been proposed for this hiatus in global warming3, 4, 5, 6, but their relative importance has not been quantified, hampering observational estimates of climate sensitivity. Here we show that accounting for recent cooling in the eastern equatorial Pacific reconciles climate simulations and observations. We present a novel method of uncovering mechanisms for global temperature change by prescribing, in addition to radiative forcing, the observed history of sea surface temperature over the central to eastern tropical Pacific in a climate model. Although the surface temperature prescription is limited to only 8.2% of the global surface, our model reproduces the annual-mean global temperature remarkably well with correlation coefficient r = 0.97 for 1970-2012 (which includes the current hiatus and a period of accelerated global warming). Moreover, our simulation captures major seasonal and regional characteristics of the hiatus, including the intensified Walker circulation, the winter cooling in northwestern North America and the prolonged drought in the southern USA. Our results show that the current hiatus is part of natural climate variability, tied specifically to a La-Niña-like decadal cooling. Although similar decadal hiatus events may occur in the future, the multi-decadal warming trend is very likely to continue with greenhouse gas
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Accidental Discovery Dramatically Improves Electrical Conductivity - - iTech Post - 3 views

www.itechpost.com/...es-electrical-conductivity.htm PHY technology
shared by Marcus Maertens on 18 Nov 13 - No Cached
  • Marcus Maertens on 18 Nov 13
     
    Oh those bloody physicists... someone forgot to turn off the lights and now they have a 400 times better conductive crystal. If science was always that easy, I would light a candle every day.
  • ...1 more comment...
  • Thijs Versloot on 18 Nov 13
     
    One of the reason why I like science, those random things that sometimes happen with outcomes you just didn't expect
  • johannessimon81 on 18 Nov 13
     
    Apparently this was not the first discovery of this effect involving SrTiO3. In an article from 2012 a conductance increase of 5 orders in magnitude is described (http://pubs.acs.org/doi/abs/10.1021/nn203991q). But indeed many large impact discoveries are accidental...
  • Paul N on 18 Nov 13
     
    I thought we all knew already that science is just another form of directed random search :)))
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Climate scientists told to 'cover up' the fact that the Earth's temperature hasn't rise... - 5 views

www.dailymail.co.uk/...emperature-risen-15-years.html climate temperature
shared by Dario Izzo on 20 Sep 13 - No Cached
  • Dario Izzo on 20 Sep 13
     
    This is becoming a mess :)
  • ...2 more comments...
  • Athanasia Nikolaou on 20 Sep 13
     
    I would avoid reading climate science from political journals, for a less selective / dramatic picture :-) . Here is a good start: http://www.realclimate.org/ And an article on why climate understanding should be approached hierarcically, (that is not the way done in the IPCC), a view with insight, 8 years ago: http://www.princeton.edu/aos/people/graduate_students/hill/files/held2005.pdf
  • Dario Izzo on 20 Sep 13
     
    True, but fundings are allocated to climate modelling 'science' on the basis of political decisions, not solid and boring scientific truisms such as 'all models are wrong'. The reason so many people got trained on this area in the past years is that resources were allocated to climate science on the basis of the dramatic picture depicted by some scientists when it was indeed convenient for them to be dramatic.
  • Athanasia Nikolaou on 20 Sep 13
     
    I see your point, and I agree that funding was also promoted through the energy players and their political influence. A coincident parallel interest which is irrelevant to the fact that the question remains vital. How do we affect climate and how does it respond. Huge complex system to analyse which responds in various time scales which could obscure the trend. What if we made a conceptual parallelism with the L Ácquila case : Is the scientific method guilty or the interpretation of uncertainty in terms of societal mobilization? Should we leave the humanitarian aspect outside any scientific activity?
  • Dario Izzo on 20 Sep 13
     
    I do not think there is anyone arguing that the question is not interesting and complex. The debate, instead, addresses the predictive value of the models produced so far. Are they good enough to be used outside of the scientific process aimed at improving them? Or should one wait for "the scientific method" to bring forth substantial improvements to the current understanding and only then start using its results? One can take both stand points, but some recent developments will bring many towards the second approach.
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European Health Levels Suddenly Collapsed After 2003 And Nobody is Sure Why - The Physi... - 1 views

medium.com/...3664ec51205c data statistics
shared by LeopoldS on 27 Nov 13 - No Cached
  • LeopoldS on 27 Nov 13
     
    interesting stats ...still living longer but enjoying it less?
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Laser fusion reactor inches closer to ignition #NIF - 2 views

www.bbc.co.uk/...science-environment-24429621 energy fusion technology
shared by Thijs Versloot on 08 Oct 13 - No Cached
  • Thijs Versloot on 08 Oct 13
     
    a point called plasma/fuel break-even is reached where the energy released is higher than the power absorbed by the pellet. Of course, to produce 192 high power lasers does also have an efficiency. Thats why 'machine break-even' or even 'grid break-even' is more important and still quite a long way off. It does show that laser fusion is catching up quickly, although with serious bumps along the road.
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Why starting from differential equations for computational physics? - 1 views

www.sciencedirect.com/...S0021999113005548 INF PHY
shared by jmlloren on 02 Dec 13 - No Cached
LeopoldS liked it
  • jmlloren on 02 Dec 13
     
    "The computational methods currently used in physics are based on the discretization of differential equations. This is because the computer can only perform algebraic operations. The purpose of this paper is to critically review this practice, showing how to obtain a purely algebraic formulation of physical laws starting directly from experimental measurements."
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Kerbal Space Program | Media - 2 views

kerbalspaceprogram.com/media.php fun space education
shared by Nicholas Lan on 24 Apr 14 - No Cached
  • Nicholas Lan on 24 Apr 14
     
    what seems to be an impressively detailed space game
  • ...4 more comments...
  • Ma Ru on 27 Apr 14
     
    Yeah... 2011 called with the greetings. However, there was quite an interesting news about KSP recently... Perhaps it's been ACT's small failure to spot this opportunity? Considering we wrote space missions games ourselves...
  • johannessimon81 on 27 Apr 14
     
    This guy actually makes very detailed video tutorials about how to master the orbital dynamics in Kerbal. I think the level of detail (and sometimes realism) is quite impressive: https://www.youtube.com/channel/UCxzC4EngIsMrPmbm6Nxvb-A
  • Thijs Versloot on 28 Apr 14
     
    I will have to try this definitely, looks like a lot of fun.. I also saw some crazy 'Insane Rocket Division' videos.. :)
  • Dario Izzo on 02 May 14
     
    @Marek: true, old news. But "opportunity"? For what? The games we write are always games with a scientific purpose (not training not educational) Kerbal Space programme is cool, but it is a game just like Microsoft Flight Simulator (but less accurate). Having ESA mission simulated in it is also cool but is it what we should or could do? Even more is it want we want to do? My personal opinion: No-No-No
  • Ma Ru on 07 May 14
     
    > The games we write are always games with a scientific purpose (not training not educational) I'd say investigating how to get the crowd may be an important part of "science of crowdsourcing". So, an obvious example would be comparing how many participants the original ACT space mission game attracted versus a variant implemented in Kerbal and why. Easily made and easily publishable I think. But that's just an obvious example I can give on the spot. I think there is more potential than that, so would not dismiss the idea so definitively. But then, correct me if I'm wrong, social sciences are still not represented in the ACT... Perhaps an idea to revive during the upcoming retreat? ;-)
  • Nicholas Lan on 08 May 14
     
    it's on sale on steam til tomorrow by the way if anyone's interested
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The Moroccan flic-flac spider: A gymnast among the arachnids -- ScienceDaily - 5 views

www.sciencedaily.com/...140428074422.htm BIO science space PHY
shared by Tom Gheysens on 29 Apr 14 - No Cached
  • Tom Gheysens on 29 Apr 14
     
    New form of locomotion found in spiders. They say it could be used for a robot on Mars...don't immediately see how though. :)
  • ...2 more comments...
  • Ma Ru on 29 Apr 14
     
    Before it gets out of control... I hope you realise that quoting "Science Daily" in the context of science is pretty much like using Daily Mail as your reference news agency?
  • johannessimon81 on 29 Apr 14
     
    I was just going to post the same story. Here is BTW a video of the intended type of robot: https://www.youtube.com/watch?v=OHo32JrkDRk&feature=youtu.be
  • Dario Izzo on 02 May 14
     
    True Marek :) The article does quote a Journal Paper though ..... published in zootaxa: a staggering 0.9 impact factor journal!! And watching the video you immediately understand why :)
  • Ma Ru on 07 May 14
     
    I of course watched the video and have trouble sleeping since.
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Singularity University, class of 2010: projects that aim to impact a billion people wit... - 8 views

www.kurzweilai.net/ty-webinar-today-sneak-preview AI robotics biomedicine biotechnology electronics energy nanotechnology singularity futures social ethics space synthetic biology computer science defence
shared by Luís F. Simões on 22 Sep 10 - No Cached
  • Luís F. Simões on 22 Sep 10
     
    At the link below you find additional information about the projects: Education: Ten weeks to save the world http://www.nature.com/news/2010/100915/full/467266a.html
  • ...8 more comments...
  • LeopoldS on 23 Sep 10
     
    this is the podcast I was listening to ...
  • Dario Izzo on 23 Sep 10
     
    We can do it in nine :)
  • LeopoldS on 24 Sep 10
     
    why wait then?
  • Juxi Leitner on 24 Sep 10
     
    hmm, wonder how easy it is to get funding for that, 25k is a bit steep for 10weeks :)
  • Dario Izzo on 26 Sep 10
     
    well, we wait for the same fundings they get and then we will do it in nine.... as we say in Rome "a mettece un cartello so bboni tutti". (italian check for Juxi)
  • LeopoldS on 26 Sep 10
     
    and what you think about the project subjects?
  • LeopoldS on 26 Sep 10
     
    I like the fact that there are quite a lot of space projects .... and these are not even bad in my view: The space project teams have developed imaginative new solutions for space and spinoffs for Earth. The AISynBio project team is working with leading NASA scientists to design bioengineered organisms that can use available resources to mitigate harsh living environments (such as lack of air, water, food, energy, atmosphere, and gravity) - on an asteroid, for example, and also on Earth . The SpaceBio Labs team plans to develop methods for doing low-cost biological research in space, such as 3D tissue engineering and protein crystallization. The Made in Space team plans to bring 3D printing to space to make space exploration cheaper, more reliable, and fail-safe ("send the bits, not the atoms"). For example, they hope to replace some of the $1 billion worth of spare parts and tools that are on the International Space Station.
  • Dario Izzo on 26 Sep 10
     
    and all in only a three months summer graduate program!! that is impressive. God I feel so stupid!!!
  • LeopoldS on 26 Sep 10
     
    well, most good ideas probably take only a second to be formulated, it's the details that take years :-)
  • Dario Izzo on 26 Sep 10
     
    I do not think the point of the SU is to formulate new ideas (infact there is nothing new in the projects chosen). Their mission is to build and maintain a network of contacts among who they believe will be the 'future leaders' of space ... very similar to our beloved ISU.
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Google combines skycrane, VTOL and lifting wing to make drone deliveries - 6 views

www.wired.com/...ffort-to-build-delivery-drones technology drone_delivery VTOL skycrane FUN soundtrack
shared by johannessimon81 on 30 Aug 14 - No Cached
annaheffernan liked it
  • johannessimon81 on 30 Aug 14
     
    Nice video featuring the technology. Plus it comes with a good soundtrack! Google's project wing uses a lifting wing concept (more fuel efficient than normal airplane layouts and MUCH more efficient than quadrocopters) but it equips the plane with engines strong enough to hover in a nose up position, allowing vertical landing and takeoff. For the delivery of packages the drone does not even need to land - it can lower them on a wire - much like the skycrane concept used to deliver the Curiosity rover on Mars. Not sure if the skycrane is really necessary but it is certainly cool. Anyways, the video is great for its soundtrack alone! ;-P
  • ...4 more comments...
  • Paul N on 31 Aug 14
     
    could we just use genetic algorithms to evolve these shapes and layouts? :P
  • Ma Ru on 31 Aug 14
     
    > Not sure if the skycrane is really necessary but it is certainly cool. I think apart from coolness using a skycrane helps keep the rotating knives away from the recipient...
  • Thijs Versloot on 01 Sep 14
     
    Honest question, are we ever going to see this in practice? I mean besides some niche application somewhere, isn't it fundamentally flawed or do I need to keep my window opened on the 3rd floor without a balcony when I ordered something from DX? Its pretty cool yes, but practical?
  • Guido de Croon on 02 Sep 14
     
    Package delivery is indeed more complicated than it may seem at first sight, although solutions are possible for instance by restricting delivery to distribution centers. What we really need of course is some really efficient and robust AI to navigate without any problems in urban areas : ) The hybrid is interesting since it combines the advantage of a Vertical Takeoff and Landing (and hover), and a wing for more efficient forward flight. Challenges lie in the control of the vehicle under any angle and all that this entails also for higher levels of control. Our lab has first used this concept a few years ago for the DARPA UAVforge challenge, and we had two hybrids in our entry last year for the IMAV 2013 (for some shaky images: https://www.youtube.com/watch?v=Z7XgRK7pMoU ).
  • Thijs Versloot on 04 Sep 14
     
    Fair enough, but even if you consider advanced/robust/efficient AI, why would you use a drone? Do we envision hundreds of drones above our heads in the street instead of UPS vans, or postmen, considering delivers letters might be more easily achievable. I am not so sure if personal delivery will take this route. On the other hand, if the system would work smoothly, I can image that I'm send a mail with the question whether I'm home (or they might know already from my personal GPS tracker) and then notify me that they are launching my DVD and it will come crashing into my door in 5min.
  • Paul N on 08 Sep 14
     
    I'm more curios how they're planning to keep people from stealing the drones. I could do with a drone army myself and having cheap amazon or google drones flying about sounds like a decent source.
2More

Hey There Little Electron, Why Won't You Tell Me Where You Came From? - 2 views

www.wired.com/...double-slit-empzeal PHY science FUN
shared by Christophe Praz on 29 Sep 14 - No Cached
  • Christophe Praz on 29 Sep 14
     
    A nice article explaining the principle of quantum superposition from the double slits experience. Nothing new here but still interesting to read :)
  • Paul N on 03 Oct 14
     
    I myself am quite a big fan of the one-electron universe paradigm :))) And of the cat cannon: http://www.askamathematician.com/2010/12/q-can-you-do-the-double-slit-experiment-with-a-cat-cannon/
3More

CPU and password strength - 4 views

www.zdnet.com/...ering-strong-passwords-useless cryptography
shared by LeopoldS on 22 May 15 - No Cached
  • LeopoldS on 22 May 15
     
    true?
  • Paul N on 26 May 15
     
    Isn't that why systems have a "wait for 15 minutes before trying again" after 3 or 5 wrong guesses? All the brute force in the word can't save you from real-life latency.
  • Ma Ru on 28 May 15
     
    Oh, so you haven't heard about diceware yet? http://world.std.com/~reinhold/diceware.html And, of course, a related XKCD...
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