Updates from December, 2009 Toggle Comment Threads | Keyboard Shortcuts

  • Bertrand 5:16 pm on December 18, 2009 Permalink | Reply
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    Magnetic Clevis 

    Since 2 years, i’m playing around with natural permanent magnet. I’m really surprise that nobody is using this natural force as it should. There is a lot of new way to explore.

    Here is a little concept of of magnetic articulation driven by 3 or 4 little electric engines.  The main goal is to let natural magnets hold the biggest part of the weight and use a very little energy to drive it.  It could be use as a stepper engine except that the angle could be setup very precisely. The strength of the joint could be modify without adding extra electric energy. Also the velocity factor could be very interesting. There is no mechanical contact between the 2 heaviest parts so no sound, no heat and no usury. Only the driven part: the electric motors, the driving screws and the spherical bearing will!

    As i saw in many industrial manufacturer since few years, the electromagnetic bearing are now very in use. (ex: SKF)

    Here is a very simple concept of natural magnet bearing:

    Magnetic Bearing Basic

    This is an aluminium shaft with box magnet all around at 45 degrees. On each sides, i put a ring magnet in the repulsive side.  Of course, it’s a schema, so i let the rings floating in space to keep the pictures readable. So more the ring are closer from each other, more there is pressure over the whole shaft.

    After that, my question was how to made this turn.  As i was studying chopper’s swashplate few years ago, i fund a way to adapt this mechanical method to my concept. Simply by creating a disharmony between the rotor’s box magnets strength like this:

    So by tilting a little the rings in symmetry over it, this will give a direction to the shaft. Now the question is how to make the rings turn in symmetry without using a lot of energy? For this i setup a set of 3 driving screws to hold the rings magnet with spherical bearing. The 2 shaft’s strokes are set in an opposite stepping, that way, when i turn the shaft there are getting closer each other, or farest in opposite rotation.

    Magnetic Clevis from Lempereur Bertrand on Vimeo.

    Here a little schema of the Final concept:

    This is with 3 shaft but it could work also with 4.

    If you want to experiment some stuff with magnets:

    http://www.supermagnete.fr/eng/

    http://www.hkcm.de/

    For industrial stuff:

    http://shop.hpceurope.com/an/home_catalogue.asp

    Constant Velocity Joint

     
  • jyonkov 11:08 am on December 16, 2009 Permalink | Reply
    Tags: , , , ,   

    Blog / CMS software ? 

    We talked about installing plugins in WP and moving the blog to our own server.  Since we may want to do more that blogging, for example: Multilingual Posts, Projects, Some metrics and Analytics, (Nikolay was taking about Trust Metric), Event organizing, Advertising, Fund raising, add more… I wonder what software is best suited to handle all ?

     
    • jyonkov 12:23 pm on December 19, 2009 Permalink | Reply

      It seems that we can’t see what the other options are… so it would be nice if we add them as a comments. I was not expecting to see a lot of votes for google, but with google apps and JEE engine it seems that it has a lot of potential.

      • Bertrand 4:47 pm on December 20, 2009 Permalink | Reply

        Drupal and ModX are really simple and clear, Joomla is heavy to setup and manipulate but there is much more fonctionality.
        About Google tools, i turn a bit around Google Site and it’s look ugly and very limitated by default.
        Joomla, Drupal, your call ;o)

        • jyonkov 2:11 am on December 23, 2009 Permalink | Reply

          As you may have already realized, it’s not really “anyone’s call” what we are going to use, but to me its more about what we need and who is willing to contribute and what platform one has experience with… Please forgive me for the following brain dump but from what i know: Nikolay has experience with WP and he has acquired gambari.org for us, Naven has extensive experience in organizing communities, Stefan has extensive experience with PHP, Bertrand is extremely good with graphics, etc … and we are all pretty good at programming and software architecture. Please add anything you’d like to share… For example I’m more comfortable with Java and Google Engine than PHP. I’m also really exited about getting together and doing a development camp, perhaps sometime next year. Candidate projects pages and projects dashboard would be useful (we can add pages under Projects page), raising funds would help (start with google adsense?). About our community portal i’m sure you’re aware that you can export WP and experiment yourself. I personally think that instead of dividing out community it would be better to experiment bridging WP. For example we can setup our WP server at http://wp.gambari.org or/and JOOMLA at http://joomla.gambari.org , as for the current http://gambari.wordpress.com we are very limited as Nikolay mentioned earlier.

          • Daniel Radev 3:32 am on December 23, 2009 Permalink | Reply

            It’s not about dividing community, I think we need a place where we can share some more information without it being visible to spam bots for example (Bertrand please remove your email from bellow :) ).

    • Nikolay 10:20 pm on January 1, 2010 Permalink | Reply

      From SEO point of view, it’s not good to have multiple subdomains. Whatever we pick, it’s better to reside on the same domain under different paths, i.e. gambari.org as the main and gambari.org/blog as the blog, etc. Regarding the CMS… I think for blogging, WordPress is the best. There are many additional things you can do on top of WordPress MU such as BuddyPress (SocNet), bbPress (forum), etc. Drupal is cool, but even the upcoming Drupal 7 is nowhere close to WordPress for blogging. Probably Drupal 8 will change the status quo, but for now I think WordPress MU + BuddyPress is the best choice for us.

      • jyonkov 2:10 am on January 2, 2010 Permalink | Reply

        Agree about the SEO point of view. About CMS I’m all for what people have experience with. The top things TODO in my opinion are to create our own WPMU, add advertisement and a way for all of us to see how much funds we have accumulated, add infrastructure for translating content. Nik, if you have time can you setup WPMU at http://gambari.org and suggest a way to add Ads. Additional user accounts might be useful (people may like to help…). Lets keep both WPMU’s active for awhile.

  • Jean 9:49 pm on December 14, 2009 Permalink | Reply
    Tags: AI, , image recognition   

    Google goes quantic 

    Google Research presented at NIPS some of the toying they have been doing with qubits from D-Wave.

    New Scientist Article

    Google Research blog entry

     
  • jyonkov 12:31 pm on December 14, 2009 Permalink | Reply
    Tags: , , , ,   

    Solar in Las Vegas 

    I was in Las Vegas for a while and decided to upload some pictures of my home renovation solar experiments. This is a 500 feet black hose that is connected to an old water heater. The hot water should circulate using D5 Solar circulation pump. My goal eventually is to concentrate solar energy with computer controlled mirrors or by pointing an old C-Band satellite towards the sun.

    It would be cool if one can find funding for organizing green development camps. For example a group of enthusiasts can get together once a year and dedicate 7 days to get their ideas into a working prototype. A demo session at the end should show the final  result. The funding is necessary for materials, travel and accommodation. Videos and pictures can be published so that the joy is shared :)

     
    • Neven Boyanov 9:21 pm on December 14, 2009 Permalink | Reply

      I think that it will be more efficient if the sun reaches the water directly, through a glass or transparent pipes. Rubber is not very good temperature conductor, it is actually very good isolator. Hristo (from Kozarevec), who has some experience, is using combination of sun heated water with gas burner or just regular wood-fire heater.

      • jyonkov 10:34 pm on December 30, 2009 Permalink | Reply

        It would be cool if Hristo can share his prototypes on the blog… Unfortunately we are blocked by the language barrier and until we get this blog to be multilingual. Its quite challenging to get oneself to write in its own language already… About the solar prototypes, i think CSP http://en.wikipedia.org/wiki/Concentrating_solar_power looks very promising.

    • Neven Boyanov 9:27 pm on December 14, 2009 Permalink | Reply

      I like the idea about the camps!
      It will be really cool. Somewhere in the mountins or even in Hroisto’s backyard, about noon everyone is already drunk and generates hundreds of new ideas. :D

      PS: Don’t bring any females though, they will spoil it all.
      PPS: So, may be in the cold mountins is better idea, women don’t like to go there anyways, so no need to convince them. ;)

      • jyonkov 10:44 pm on December 30, 2009 Permalink | Reply

        I’m glad you like the camps… I think Bertrand is also exited about it. We may even be able to raise funds for it, assuming there are projects themes, goals and people willing to share their thoughts ahead of time in order to do some preparations. Lets go for it.

  • jyonkov 10:22 pm on December 1, 2009 Permalink | Reply
    Tags: 3d, flash, libs, ,   

    Software in Flash 

    A friend of mine – Bertrand, showed me a nice collaborative whiteboard/canvas  software in flash.
    Collaborative mind-map for google-wave, anyone ?

    While on the subject here are some other interesting flash-based apps & libs:

     
    • Stefan Stefanov 8:14 am on December 3, 2009 Permalink | Reply

      Collaborative mind-map for google-wave – definitely yes, thumbs up! I’m really intrigued by the possibility to develop wave widgets/robots in general. However, I’m total newbie on that subject. Or I should better say – I’m a pre-newbie. :)

      What I can say for sure is this is one of those applications google wave is created for.

      • jyonkov 9:03 pm on December 12, 2009 Permalink | Reply

        It’s very exiting that you’re interested in collaborative visualization and and modeling, Diagrams can go long way… Here is a process that my friend Ian showed me a while ago. Professionally I’ve been using Graphviz for a while now to visualize models, conceptual graphs, RDF sub-graphs etc. Here is a google wave that i used to transfer a brain-map from my IPhone. All, feel free to link your visual thoughts to mine !

    • Neven Boyanov 9:14 pm on December 14, 2009 Permalink | Reply

      Did you invite Bertrand to that blog?

      • jyonkov 10:36 am on December 16, 2009 Permalink | Reply

        Yes, I’ve invited Bertrand a while ago… One more reason for us to get our act together and get a plugin to contribute translations…I’ll put a poll together about different Blog/CMS systems we can use.

        • Bertrand 10:09 pm on December 18, 2009 Permalink | Reply

          Yea guys, i put my first article today ;o)
          Sorry for being so long, but i had a child 1 month ago so.
          A little question about the idiagram.com schema. I love that kind of diagram!
          Do you think that there is a way of making a usable schema for politic purpose?
          Because, when i check the tv news since few month, it looks that human being are definitively not able to succeed by itself. It’s Rome again now. I know that it’s look like very stupid question but what if we could let a AI take decisions independently of human decision? Not by thinking deeply but just by taking the smartest decision for the community and not for 1 or 2 guys.
          Politic, Economie, Law are getting more and more complex and no-one is coming to understand what going on anymore. Maybe use an AI model to regulate or control some crucial point could be really nice for humanity! Our fucking history prove us so many times that we just can’t manage each other alone.

          • Neven Boyanov 9:50 pm on December 20, 2009 Permalink | Reply

            Hey Bertrand, congratulations for the baby!

            About the politics, I think you’re right – any sort of sophisticated enough A.I. system will do better than they do – most of them are just idiots in the uniform of the public office.

            This world will definitely change, but it will take time, and based on our history it may take a while, could be another 2000 years. That’s more like a fraction of a second in the scale of the entire human history (if anyone can tell how what’s the length of the human history) but this is our time and may we should use A.I. to replace those not-that-smart decision makers.

            Let’s make an experiment:
            Choose a AI/Expert system and feed it with enough information so it could make some sort of decision. Regularly choose important problems that occur in our society, those that and international and will be judged and made decision about by all (or most) governments. See what decision our system will make and later compare it with theirs.

            It may prove that the A.I. is better, equal or worse that them, on all cases it will be interesting, and a lot of fun of course.

            PS: I thought that this forum here is more for creating things, not a chatter, so here it is – a challenge.

            • Bertrand 10:08 am on December 21, 2009 Permalink | Reply

              We could also take the problem from the other side and ask an AI to rewrite our law and politic system !

              Few month ago, i was in court and i was chatting with my lawyer about laws system (waiting our turn). He explained me that law is just another economy. As i already explain in another post about software, economy has a great problem, it made people made stupid and crazy stuff for made more money rather than take care of people’s needs. So, even if someone tomorrow find a couple a fundamental awesome laws that could handle any problems, no-one will listen to him because it will kill this economy. So the only point of making laws more and more complex is for increase this economy. And the point of letting lawyers write laws is to let this system get more profitable.

              Also, the actual political and law system is from century and is based on very old world behaviors. Maybe the idea to find a global system from actual knowledge and composed with simple rules may be very interesting to help people choose good direction.

              • jyonkov 11:11 am on December 21, 2009 Permalink | Reply

                I agree. Trying to make this economy model work might not be enough and the best thing for humanity… Talking about economy models it would be great if we collaboratively build one that would allow us to allocate funds (if we manage to get any) per project and contribution without the subjectivity of a particular person. Initially this can be all virtual… like a game.

                • Bertrand 1:01 pm on December 21, 2009 Permalink | Reply

                  Economical game :o )This remind me something.
                  I think we should avoid to consider the economy part of the structure. Only people’s side should be think. Redo a political model, this is the point. Maybe we could find something without laws and economy! Or something new.

                  For the fund part, we could try to sell an economic prediction algorithm like the one for the weather. Setup huge supercomputer to try to predict few bullshit and then work on something greater in parallel!

          • Daniel Radev 6:47 pm on December 22, 2009 Permalink | Reply

            Hi guys,

            The idea of AI making decisions instead of us (mankind) terrifies me. Yes, most politics are idiots and yes, people tend to make wrong choices (depending on ones point of view).
            However mankind history shows unambiguously that mankind moves ahead and learns from it’s mistakes (unfortunately sometimes through tragedies).
            Furthermore how the “right” decision is defined – the one that benefits majority or the one that benefits minority?

            The idea of economy model that allows allocating funds is something very interesting and worth discussing…

            Also let’s decide what we can discuss here and is it better to discuss things somewhere else, google wave for example.

            • Bertrand 8:30 pm on December 22, 2009 Permalink | Reply

              Agree for Waves. Blog is very good begining for turning around ideas but google tools could be really better for organize the work around ideas !

              So from where to begin? Any ideas?

              • Daniel Radev 8:49 pm on December 22, 2009 Permalink | Reply

                Well, if anyone of you guys don’t have Wave account I have a lot of invitations to give away.
                We can create private Waves on specific topics and invite people there (also it’s probably worth it to research how we can embed a wave on this site)…

                • Bertrand 8:54 pm on December 22, 2009 Permalink | Reply

                  beber.lempereur at gmail dot com
                  What’s yours?

            • jyonkov 1:08 am on December 23, 2009 Permalink | Reply

              There are many tools for collaboration, thats why I’ve posted the CMS/Blog poll. It’s important before we decide to use one or another to think about what are we trying to do, what we have achieved so far and whats missing. There are many ways that google wave (as is now) is inferior to other tools… The whole google tool set is another matter. I think that it might be useful for us to have ability to create content like projects pages, organize content and navigation, use current assets for fund raising even trough adds and much more… I think that the tool of preference will be determined by the people willing to contribute within our community. By contribution i don’t mean only ideas but also by developing and improving these tools. I’ll continue this discussion in the CMS/Blog poll thread…

  • Daniel Radev 8:51 am on December 1, 2009 Permalink | Reply
    Tags: ,   

    eyewriter.org open source initiative. 

    The EyeWriter project is an ongoing collaborative research effort to empower people who are suffering from ALS with creative technologies.

    http://www.eyewriter.org/

    Absolutely stunning

     
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