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LeopoldS

Software » OpenStack Open Source Cloud Computing Software - 2 views

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    for the ACT? already posted here once I think but can#t remember the discussion
LeopoldS

Always Innovating: MeCam - 2 views

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    open source open hardware quadrocopter ! next platform for Astrodrone ?
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    MSRP suggests it's not designed to survive landing.
Marcus Maertens

US Petition for building a Death Star 2016 - 3 views

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    By focusing our defense resources into a space-superiority platform and weapon system such as a Death Star, the government can spur job creation in the fields of construction, engineering, space exploration, and more, and strengthen our national defense.
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    I want to sign, it is totally a meaningful idea .... ! Just remember not to put the nuclear energy source at the end of a tunnel which has an opening on the surface :)
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    Bad news from this frontier: https://petitions.whitehouse.gov/response/isnt-petition-response-youre-looking As the Americans are not going for it, it might be a good opportunity for Europeans to make a real difference in space.
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    Merkel seems anyway a bit short of ideas ...
Ma Ru

Ten Simple Rules for the Open Development of Scientific Software - 0 views

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    Another great piece from "Ten Simple Rules" series by PLOSCB
Kevin de Groote

Gephi, an open source graph visualization and manipulation software - 5 views

shared by Kevin de Groote on 05 Jun 12 - Cached
LeopoldS and Joris _ liked it
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    Gephi is an interactive visualization and exploration platform for all kinds of networks and complex systems, dynamic and hierarchical graphs. Runs on Windows, Linux and Mac OS X. Gephi is open-source and free. Learn More on Gephi Platform " Gephi 0.8.1-beta has been released! Discover a new Timeline, dynamic ranking and weighted community detection.
Dario Izzo

edX - Home - 1 views

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    The future of education? I will defnitely have a look to the reusability of the open source platform ....
LeopoldS

NYTimes/ice - GitHub - 5 views

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    Anybody tried this out already?
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    nobody? where is Francesco hiding?
Lionel Jacques

code.nasa.gov - 0 views

shared by Lionel Jacques on 06 Jan 12 - No Cached
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    NASA open source code initiative... Should ESA do the same?
Dario Izzo

Throwable Panoramic Ball Camera // Jonas Pfeil - 3 views

shared by Dario Izzo on 14 Oct 11 - No Cached
Ma Ru liked it
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    Good to solve the Landing problem!!!! No skew due to perspective and gimballed by definition
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    Very very nice idea! Unfortunately samples show they still have quite some work to do on the image processing side... which is interesting because there are very good open-source solutions for stitching.
Luís F. Simões

Bitcoin P2P Currency: The Most Dangerous Project We've Ever Seen - 10 views

  • After month of research and discovery, we’ve learned the following:1. Bitcoin is a technologically sound project.2. Bitcoin is unstoppable without end-user prosecution.3. Bitcoin is the most dangerous open-source project ever created.4. Bitcoin may be the most dangerous technological project since the internet itself.5. Bitcoin is a political statement by technotarians (technological libertarians).*6. Bitcoins will change the world unless governments ban them with harsh penalties.
  • The benefits of a currency like this:a) Your coins can’t be frozen (like a Paypal account can be)b) Your coins can’t be trackedc) Your coins can’t be taxedd) Transaction costs are extremely low (sorry credit card companies)
  • An individual with the name -- or perhaps handle -- of Satoshi Nakamoto first wrote about bitcoins in a paper called Bitcoin: A Peer-to-Peer Electronic Cash System.
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  • * We made this term up to describe the “good people” of the internet who believe in the fundamental rights of individuals to be free, have free speech, fight hypocrisy and stand behind logic, technology and science over religion, political structure and tradition. These are the people who build and support things like Wikileaks, Anonymous, Linux and Wikipedia. They think that people can, and should, govern themselves. They are against external forms of control such as DRM, laws that are bought and sold by lobbyists, and religions like Scientology. They include splinter groups that enforce these ideals in the form of hacktivism, such as the takedown of the Sony Playstation Network after Sony tried to prosecute a hacker for unlocking its console.
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    Sounds good!
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    wow it's frigthening! it's the dream of every anarchist, every drug, arm, human dealer! the world made as a global fiscal paradise... the idea is clever however it will not replace real money because 1 - no one will build a fortune on bitcoin if a technological breakthrough can ruin them 2 - government never allowed parallel money to flourish on their territory, so it will be almost impossible to change bitcoin against euros or dollars
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    interesting stuff anyone read cryptonomicon by neal stephenson? similar theme.
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    :) yes. One of the comments on reddit was precisely drawing the parallels with Neal Stephenson's Snowcrash / Diamond Age / Cryptonomicon. Interesting stuff indeed. It has a lot of potential for misuse, but also opens up new possibilities. We've discussed recently how emerging technologies will drive social change. Whether it's the likes of NSA / CIA who will benefit the most from the Twitters, Facebooks and so on, by gaining greater power for control, or whether individuals are being empowered to at least an identical degree. We saw last year VISA / PayPal censoring WikiLeaks... Well, here's a way for any individual to support such an organization, in a fully anonymous and uncontrollable way...
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    One of my colleagues has made a nice, short write-up about BitCoin: http://www.pds.ewi.tudelft.nl/~victor/bitcoin.html
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    very nice analysis indeed - thanks Tamas for sharing it!
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    mmm I'm not an expert but it seemed to me that, even if these criticisms are true, there is one fundamental difference between the money you exchange on internet via your bank, and bitcoins. The first one is virtual money and the second one aims at being real, physical, money, even if digital, in the same way as banknotes, coins, or gold.
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    An algorithm wanna-be central bank issuing untraceable tax free money between internet users? not more likely than the end of the world supposed to take place tomorrow, in my opinion. Algorithms don't usually assault women though !:P
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    well, most money is anyway just virtual and only based on expectations and trust ... (see e.g. http://en.wikipedia.org/wiki/Money_supply) and thus if people trust that this "money" has some value in the sense that they can get something of value to them in exchange, then not much more is needed it seems to me ...
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    @Leopold: ok let's use the rigth words then. Bitcoin aim at being a currency ("physical objects generally accepted as a medium of exchange" from wikipedia), different than the "demand deposit". In the article proposed by Tamas he compares what cannot be compared (currencies, demand deposits and their mean of exchange). The interesting question is wether one can create a digital currency which is too difficult to counterfeit. As far as I know, there is no existing digital currency except this bitcoins (and maybe the currencies from games as second life and others, but which are of limited use in real world).
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    well of course money is trust, and even more loans and credit and even more stock and bond markets. It all represents trust and expectations. However since the first banks 500 years ago and the first loans etc. etc., and as well the fact that bonds and currencies bring down whole countries (Greece lately), and are mainly controlled by large financial centres and (central) banks, banks have always been on the winning side no matter what and that isn't going to change easily. So if you are talking about these new currencies it would be a new era, not just a new currency. So should Greece convert its debt to bitcoins ;P ?
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    well, from 1936 to 1993 the central bank of france was owned by the state and was supposed to serve the general interest...
pacome delva

Transparent material opens a new window on solar energy - physicsworld.com - 4 views

  • Researchers in the US have developed a new kind of organic solar cell that converts a small but significant fraction of the sunlight that falls onto it into electricity, while still allowing most of the visible part of that light to pass through. Thanks to this transparency, the team says that the cell could be mounted onto windows in buildings or cars in order to tap a currently under-exploited source of energy.
LeopoldS

Knowledge, networks and nations | Royal Society - 4 views

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    nice graphs ... and nice stats
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    the graphs are Motion Charts. They were made famous by Hans Rosling's TED talks (http://www.ted.com/speakers/hans_rosling.html). Google eventually bought his software, and made part of it freely available: http://code.google.com/apis/visualization/documentation/gallery/motionchart.html. That's what they are using there.
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    thanks - I was already wondering several times what had happened to this technique that he used at the talk we looked at several times when it was first uploaded ... good that they have made it open source! are they easy to use?
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    the easiest way to use them is: Google Docs > open/create a spreadsheet > Insert > Gadget > Charts > Motion Chart !! :) You have here a tutorial describing all the steps to get it running.
LeopoldS

NASA - Open Source Summit 2011 - 1 views

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    can't come at a better time with respect to SOCIS ....
Luís F. Simões

Polynomial Time Code For 3-SAT Released, P==NP - Slashdot - 0 views

  • "Vladimir Romanov has released what he claims is a polynomial-time algorithm for solving 3-SAT. Because 3-SAT is NP-complete, this would imply that P==NP. While there's still good reason to be skeptical that this is, in fact, true, he's made source code available and appears decidedly more serious than most of the people attempting to prove that P==NP or P!=NP. Even though this is probably wrong, just based on the sheer number of prior failures, it seems more likely to lead to new discoveries than most. Note that there are already algorithms to solve 3-SAT, including one that runs in time (4/3)^n and succeeds with high probability. Incidentally, this wouldn't necessarily imply that encryption is worthless: it may still be too slow to be practical."
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    here we go again...
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    slashdot: "Russian computer scientist Vladimir Romanov has conceded that his previously published solution to the '3 SAT' problem of boolean algebra does not work."
pacome delva

BibSonomy Jabref Plugin - 0 views

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    An open-source project to replace mendeley Anyone motivated to try it ?
Luís F. Simões

Open Source Hardware Hits 1.0 - Slashdot - 1 views

  • Open Source Hardware is a term for tangible artifacts — machines, devices, or other physical things — whose design has been released to the public in such a way that anyone can make, modify, distribute, and use those things.
Dario Izzo

Google defends H.264 removal from Chrome, says WebM plug-ins coming to Safari and IE9 -- Engadget - 1 views

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    Free software or a marketing move?
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    They have all the weight they need to pull this through. I'm dreaming of a day in which they will switch all Youtube videos to WebM, with all the Apple devices becoming useless to watch Internet video :) And Steve Jobs struggling to explain why, after wearing the mantle of open standards in the whole Flash vs HTML5 thing, he's now pushing H.264 against WebM... Anyway, in my view the less encumbered formats around the best for everyone's freedom.
Dario Izzo

JHelioviewer - 7 views

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    OPen SOurce developed entirely in ESA
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