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Joris _

Observatory - Cassini Data Solves Mystery of Iapetus's Two-Tone Surface - NYTimes.com - 4 views

www.nytimes.com/...15obmoon.html

space planets moon

shared by Joris _ on 16 Dec 09 - Cached
  • dust, most likely from another of Saturn’s moons, falls on the leading side of Iapetus as it orbits the planet
Francesco Biscani

Pi Computation Record - 4 views

bellard.org/pi2700e9

inf

shared by Francesco Biscani on 06 Jan 10 - Cached
  • Francesco Biscani on 06 Jan 10
     
    For Dario: the PI computation record was established on a single desktop computer using a cache optimized algorithm. Previous record was obtained by a cluster of hundreds of computers. The cache optimized algorithm was 20 times faster.
  • ...6 more comments...
  • Ma Ru on 06 Jan 10
     
    Teeeeheeeeheeee... assembler programmers greet Java/Python/Etc. programmers :)
  • Dario Izzo on 07 Jan 10
     
    And he seems to have done everything in his free time!!! I like the first FAQ.... "why did you do it?"
  • nikolas smyrlakis on 07 Jan 10
  • LeopoldS on 07 Jan 10
     
    did you read any of the books he recommends? suggest: Modern Computer Arithmetic by Richard Brent and Paul Zimmermann, version 0.4, November 2009, Full text available here. The Art of Computer Programming, volume 2 : Seminumerical Algorithms by Donald E. Knuth, Addison-Wesley, third edition, 1998. More information here.
  • LeopoldS on 07 Jan 10
     
    btw: we will very soon have the very same processor in the new iMac .... what record are you going to beat with it?
  • Francesco Biscani on 08 Jan 10
     
    Zimmerman is the same guy behind the MPFR multiprecision floating-point library, if I recall correctly: http://www.mpfr.org/credit.html I've not read the book... Multiprecision arithmetic is a huge topic though, at least from the scientific and number theory point of view if not for its applications to engineering problems. "The art of computer programming" is probably the closest thing to a bible for computer scientists :)
  • Francesco Biscani on 08 Jan 10
     
    "btw: we will very soon have the very same processor in the new iMac .... what record are you going to beat with it?" Fastest Linux install on an iMac :)
  • Juxi Leitner on 08 Jan 10
     
    "Fastest Linux install on an iMac :)" that is going to be a though one but a worthy aim! ""The art of computer programming" is probably the closest thing to a bible for computer scientists :)" yep! Programming is art ;)
pacome delva

Condensation transition in networks and other complex systems - 4 views

nuweb.neu.edu/...Condensation.html

phy bio complex_networks

shared by pacome delva on 15 Jan 10 - Cached
  • pacome delva on 15 Jan 10
     
    I like this work... it mixes physics, networks and biology ! Anyone heard about her ? Here's an interesting paper found on this website: http://nuweb.neu.edu/gbianconi/condensation.pdf
  • ...3 more comments...
  • Francesco Biscani on 15 Jan 10
     
    Eh... Barabasi is really milking the golden cow :) It seems interesting, even if I don't remember enough from my statistical mechanics classes to truly understand it without a major effort. Maybe you could make a layman's science coffee about it?
  • pacome delva on 15 Jan 10
     
    yeah i could if there's enough interest...? do u know Barabasi ?
  • Francesco Biscani on 15 Jan 10
     
    He's quite well known for his work on scale-free networks: http://en.wikipedia.org/wiki/Albert-L%C3%A1szl%C3%B3_Barab%C3%A1si He's applying them for everything and the kitchen sink :) We have a Barabasi-Albert network topology implemented in PaGMO...
  • Dario Izzo on 16 Jan 10
     
    We worked on this with Luzi a few years back ... while the analogy is original and interesting it fails to capture the dynamics of a network, e.g. if a network has hubs that grow and shrink .... Luzi worked on an extended model to solve this issue, but, if I remember correctly, he got stuck in a computationally very hard problem .... We intended to develop and use the extended model to define relevant characteristic of the ESA network formed by mail exchanges.....
  • nikolas smyrlakis on 18 Jan 10
     
    ...but then the CMS YGT didn't really like the project
Joris _

Space shuttles for sale - Short Sharp Science - New Scientist - 4 views

www.newscientist.com/...space-shuttles-for-sale.html

Space shuttle

shared by Joris _ on 19 Jan 10 - Cached
  • If an entire shuttle is beyond your budget, consider a main engine instead. NASA had hoped to charge up to $800,000 for these but lack of interest has forced it to slash the price. They are now available for free
  • Nicholas Lan on 19 Jan 10
     
    will it fit in diego's van?
Nina Nadine Ridder

Public Invited To Pick Pixels on Mars :: Elites TV - 0 views

elitestv.com/...invited-to-pick-pixels-on-mars

Mars HiRISE

shared by Nina Nadine Ridder on 21 Jan 10 - Cached
LeopoldS liked it
  • Nina Nadine Ridder on 21 Jan 10
     
    HiRISE team gives public the oppotunity to propose imaging targets on Mars... i.e., they kind of stole our idea from the secondary payload brainstorm!
Joris _

DoD Buzz | Back Away from GPS: AF Chief - 4 views

www.dodbuzz.com/...back-away-from-gps-af-chief

MAD GPS security

shared by Joris _ on 21 Jan 10 - Cached
  • develop alternatives to GPS
  • The fact that the U.S., which invented GPS and most of what depends on it (ATMs, gas pumps, trucking companies and lost spouses), would consider stepping away from the system marks a cultural and technological milestone
  • recommended that the U.S. scrap building five more GPS satellites and engage European allies on sharing their proposed Galileo global navigation satellite system
Tobias Seidl

Rules for Biologically Inspired Adaptive Network Design -- Tero et al. 327 (5964): 439 ... - 4 views

www.sciencemag.org/...439

BIO AI robot navigation paper

shared by Tobias Seidl on 22 Jan 10 - Cached
  • Tobias Seidl on 22 Jan 10
     
    Navigation for robtos. That's how we should have done the hybrid controller study.
  • ...3 more comments...
  • LeopoldS on 23 Jan 10
     
    and why didnt we?
  • Tobias Seidl on 25 Jan 10
     
    Because I have no clue about fungi. They are no animals. (Neither they are plants, of which I also don't have a clue.)
  • LeopoldS on 25 Jan 10
     
    so what are they then? ... and don't tell me "fungi" now ..
  • Tobias Seidl on 25 Jan 10
     
    Well, it has always been a long discussion. Fungi are according to the most recent findings definitely no plants. Since they have always been in botanic textbooks, I would assume that they were never considered animals.No fauna, no flora, no stones. Maybe they are extraterrestrials. But that wouldn't solve the questions. Maybe they are just "fungi"?
  • LeopoldS on 25 Jan 10
     
    what about then: "can we use them for space?"
Nicholas Lan

A counter-distributed computing story - 4 views

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

computing technology

shared by Nicholas Lan on 25 Jan 10 - Cached
  • Nicholas Lan on 25 Jan 10
     
    article itself isn't terribly interesting but first piece i've seen on such a trend
Eduardo Martin Moraud

Making Mars the new Earth - 4 views

ngm.nationalgeographic.com/...mars

shared by Eduardo Martin Moraud on 27 Jan 10 - Cached
  • Eduardo Martin Moraud on 27 Jan 10
     
    How National Geographics depicts terraforming... in case it gives ideas
  • Luzi Bergamin on 27 Jan 10
     
    "Total Recall" was better, wasn't it?
Francesco Biscani

Can Curiosity Be Programmed? - 4 views

developers.slashdot.org/...Can-Curiosity-Be-Programmed

ai

shared by Francesco Biscani on 28 Jan 10 - Cached
  • Francesco Biscani on 28 Jan 10
     
    Deja-vu?
  • Luzi Bergamin on 28 Jan 10
     
    He talks on "Singularity Summits" of good ol' Kurtzweil? Surprised?
LeopoldS

YouTube - Pigeon: Impossible - 4 views

www.youtube.com/watch_popup

fim joke fun

shared by LeopoldS on 01 Feb 10 - Cached
  • LeopoldS on 01 Feb 10
     
    nice :-)
LeopoldS

HP Labs' Central Nervous System for the Earth project aims to build a planetwide sensin... - 4 views

www.hpl.hp.com/...cense.html

NAN nanoengineering smart dust

shared by LeopoldS on 01 Feb 10 - Cached
  • LeopoldS on 01 Feb 10
     
    is it worth having another look at this smart dust evolution? anybody interested?
Juxi Leitner

Slashdot Science Story | Turns Out You Actually Can Be Bored To Death - 4 views

science.slashdot.org/...Actually-Can-Be-Bored-To-Death

mgmt

shared by Juxi Leitner on 09 Feb 10 - Cached
  • Juxi Leitner on 09 Feb 10
     
    whoa, so take care at those long presentations and meetings!
Francesco Biscani

BBC News - Study hints at dark matter action - 0 views

news.bbc.co.uk/...8508662.stm

phy

shared by Francesco Biscani on 16 Feb 10 - Cached
Ma Ru liked it
  • "We can't rule them out as being a signal but we can't conclude that they are a signal."
  • Francesco Biscani on 16 Feb 10
     
    Gotta love the scientific method :)
  • Ma Ru on 16 Feb 10
     
    Have to remember this very useful sentence...
  • pacome delva on 16 Feb 10
     
    haha
nikolas smyrlakis

DIME | Dynamics of Institutions and Markets in Europe - 4 views

www.dime-eu.org

CMS dynamics innovation economics europe

shared by nikolas smyrlakis on 09 Mar 10 - Cached
  • nikolas smyrlakis on 09 Mar 10
     
    an active and open community for whoever interested and the new YGTs RFs in Innovation/ Economics/ CMS etc.
LeopoldS

UW researchers look to reinvent the graphical user interface - 4 views

blog.seattlepi.com/...200101.asp

BMI INF

shared by LeopoldS on 31 Mar 10 - Cached
  • LeopoldS on 31 Mar 10
     
    Francesco have a look at this - any interest?
pacome delva

BEC coupled to mechanical oscillator - 0 views

physicsworld.com/...42297

phy BEC Casimir-Polder_force

shared by pacome delva on 15 Apr 10 - Cached
LeopoldS liked it
  • Treutlein and colleague’s work represents an important step forward in the use of ultracold atoms to study mechanical systems. "This experiment clearly demonstrates the possibility to use ultracold atomic systems as diagnostic tools and high-precision sensors, this is a very promising route of research," he said.
  • LeopoldS on 15 Apr 10
     
    nice!!!
pacome delva

Nanotube 'fuzz' boosts optical performance - 0 views

physicsworld.com/...42486

phy nan gold plasmonics metamaterials

shared by pacome delva on 29 Apr 10 - Cached
LeopoldS liked it
  • This structure is called a "plasmonic metamaterial" because its optical properties involve surface plasmons.
  • pacome delva on 29 Apr 10
     
    Again some plasmonic metamaterial...
Nina Nadine Ridder

Why Explore Mars? : Discovery News - 5 views

news.discovery.com/...why-explore-mars.html

Mars NASA rover

shared by Nina Nadine Ridder on 04 May 10 - Cached
  • Nina Nadine Ridder on 04 May 10
     
    "NASA's proposed budget for 2011 is $19 billion," Brown says. "That's about three weeks of the war in Iraq." + interesting video on new rover design ("tumbleweed" rover)
  • Christos Ampatzis on 05 May 10
     
    that's why I quit ESA - I'll join NATO, more promising career ahead
  • LeopoldS on 05 May 10
     
    I thought you became an EC bureaucrat ...
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