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Lionel Jacques

Miniature robot rides bicycle like a pro - 8 views

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    pretty impressive
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    Awesome, Dutch robotics labs must be so jealous!
Juxi Leitner

ESA Servers Hacked - 11 views

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    uups :)
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    whoops indeed
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    sounds really bad ... how bad is it???
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    Heads will fall in ESRIN... And now I know who crashed my computations on sophia ;-) [Edit] A lesson for everyone: look at the file with email passwords and see how many you are able to guess even though they're supposed to be scrambled by removing a middle part... [Edit] And a hilarious quote from the hacker's "about me": "I had another blog, more exactly www.tinkode.baywords.com but I forgot the password, so now I created this one."
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    got the reply from IT security today: they had dealt with apparently the very same day and all under control :-)
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    Well, I wouldn't expect a reply: "all our past emails have been downloaded and sold to NASA" even if that was the case.
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    Of course Marek is right... What matters is the theatre of security, not security itself. Just like in airports :)
jaihobah

An AI physicist can derive the natural laws of imagined universes - 1 views

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    I'm afraid I take some issue with this rather glorious title. I've only skimmed this paper but looking at the experimental details, their 'imagined universes' comprise of a ball confined in a 2D space as well as a double pendulum. Work along this area is nothing new - it's known in the control community as Inverse Reinforcement Learning - learning dynamics of some system from demonstration trajectories. The paper title ('Toward an AI Physicist for Unsupervised Learning') is more moderate so yet again the issue is how AI is reported in the media...
jaihobah

Demonstrating a new technology for space debris removal using a bi-directional plasma t... - 2 views

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    Some people answering the question 'What's cooler than blasting space debris with lasers...?'.
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    If it fires in both directions, can we align it such that it deorbits two debris with one shot?
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    :) the idea of having this method for debris removal is actually an ACT one from Claudio Bombardelli (ACT RF in MAD https://en.wikipedia.org/wiki/Ion-beam_shepherd). This is just a technological device to implement it so that the system on board is simplified (i.e. instead of two engines, you get away with one and a weird nozzle) Marcus, you cannot align it to get rid of two debris as you need to keep the spacecraft close to the debris as this is a long duration acion. One of the two would drift away (can only follow one!)
jaihobah

The innovation turning desert sand into farmland - 1 views

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    Norwegian scientist Kristian Morten Olesen has patented a process to mix nano-particles of clay with water and bind them to sand particles to condition desert soil - he has been working on Liquid Nanoclay (LNC) since 2005.
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    The news here that some patent has been filed. If it actually works the guy is an ass for wanting to patent something that is solving world hunger. If it does not, then the guy is still an ass. So the news is that this guy is an ass :)
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    Agreed :) But, if it does work I doubt the guy will be able to enforce the patent in most of the countries where this will be helpful.
marliesarnhof

Attention PGP Users: New Vulnerabilities Require You To Take Action Now - 2 views

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    no cutting-edge space-related science, but important anyways
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    The EFF communicate is actually quite inaccurate. This is disappointing from the EFF, though for some part, it is due to the communication from the researchers who "discovered" the attack. PGP itself is not broken, but rather some implementations on some email clients (notably Enigmail, though it was patched several months ago). See https://protonmail.com/blog/pgp-vulnerability-efail/ On the other hand, if you are very keen on security, there is an XSS attack reported on Signal, so… https://thehackernews.com/2018/05/signal-messenger-code-injection.html The *good* recommendation here is actually rather to keep your software stack up to date (surprising, no?) and keep encrypting your emails.
Alexander Wittig

Calling Bullshit - 2 views

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    A college course at University of Washington on "Calling Bullshit". We should invite them to give a lunch lecture at ESA... Our aim in this course is to teach you how to think critically about the data and models that constitute evidence in the social and natural sciences. While bullshit may reach its apogee in the political domain, this is not a course on political bullshit. Instead, we will focus on bullshit that comes clad in the trappings of scholarly discourse. Our learning objectives are straightforward. After taking the course, you should be able to: * Remain vigilant for bullshit contaminating your information diet. * Recognize said bullshit whenever and wherever you encounter it. * Figure out for yourself precisely why a particular bit of bullshit is bullshit. * Provide a statistician or fellow scientist with a technical explanation of why a claim is bullshit. * Provide your crystals-and-homeopathy aunt or casually racist uncle with an accessible and persuasive explanation of why a claim is bullshit. We will be astonished if these skills do not turn out to be among the most useful and most broadly applicable of those that you acquire during the course of your college education.
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    love it: "Politicians are unconstrained by facts. Science is conducted by press release. Higher education rewards bullshit over analytic thought. Startup culture elevates bullshit to high art. Advertisers wink conspiratorially and invite us to join them in seeing through all the bullshit - and take advantage of our lowered guard to bombard us with bullshit of the second order. The majority of administrative activity, whether in private business or the public sphere, seems to be little more than a sophisticated exercise in the combinatorial reassembly of bullshit. We're sick of it. It's time to do something, and as educators, one constructive thing we know how to do is to teach people. So, the aim of this course is to help students navigate the bullshit-rich modern environment by identifying bullshit, seeing through it, and combating it with effective analysis and argument."
Luís F. Simões

Why Is It So Hard to Predict the Future? - The Atlantic - 1 views

  • The Peculiar Blindness of Experts Credentialed authorities are comically bad at predicting the future. But reliable forecasting is possible.
  • The result: The experts were, by and large, horrific forecasters. Their areas of specialty, years of experience, and (for some) access to classified information made no difference. They were bad at short-term forecasting and bad at long-term forecasting. They were bad at forecasting in every domain. When experts declared that future events were impossible or nearly impossible, 15 percent of them occurred nonetheless. When they declared events to be a sure thing, more than one-quarter of them failed to transpire. As the Danish proverb warns, “It is difficult to make predictions, especially about the future.”
  • Tetlock and Mellers found that not only were the best forecasters foxy as individuals, but they tended to have qualities that made them particularly effective collaborators. They were “curious about, well, really everything,” as one of the top forecasters told me. They crossed disciplines, and viewed their teammates as sources for learning, rather than peers to be convinced. When those foxes were later grouped into much smaller teams—12 members each—they became even more accurate. They outperformed—by a lot—a group of experienced intelligence analysts with access to classified data.
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  • This article is adapted from David Epstein’s book Range: Why Generalists Triumph in a Specialized World.
eblazquez

Intel launches its next-generation neuromorphic processor-so, what's that again? | Ars ... - 1 views

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    Seems to be a fun playground for Spiking Neural Networks right (from my newbie PoV)?
pablo_gomez

The Webb Space Telescope Will Rewrite Cosmic History. If It Works. - 0 views

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    A nice look back into how JWST came to be and what it's all about. :)
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