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LeopoldS

Access : Coherent emission of light by thermal sources : Nature - 0 views

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    how "large" could these distances be? - ready for SPS?
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    I don't think that the distance is the important criteria... It seems that the directivity is of the order of a laser one, so the divergence will be equivalent. Perhaps the important criteria is that the cost of these type of light sources could be cheaper...? and also perhaps what power transmission is achievable? It seems also that now that this concept could be used for to focus cheap lasers, instead of using complex optics in cd-rom players, etc... see http://news.softpedia.com/news/Highly-Directional-Semiconductor-Laser-Created-at-Harvard-90839.shtml
nikolas smyrlakis

New Pattern Found in Prime Numbers - 0 views

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    wow - how comes that after so many years there are still some hidden "patterns" in primes? does however not seem to help for predicting where to discover new higher prime numbers, correct?
Tobias Seidl

Energiesparwunder: Frosch kann mehrere Jahre verschlafen - SPIEGEL ONLINE - Nachrichten... - 0 views

  • Sie berichteten beim Jahrestreffen der "Society of Experimental Biology" im schottischen Glasgow von ihren Ergebnissen.
  • Den Laubfröschen gelingt es nämlich, ihren Stoffwechsel stark herunterzuregeln - und so fast beliebig viel Energie zu sparen.
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    Unfortunately in German: A frog which is able to survive for years in the mud by using a technique calle Mitochondriatic coupling. And I should have gone to that conference!
nikolas smyrlakis

Should NIAC be Revived? | NASA Watch - 0 views

  • $4 million annual budge
    • nikolas smyrlakis
       
      To my knowledge (readers correct me if I'm wrong) no where else within NASA do people get paid to just think very long range ideas. My question: does such a group belong in NASA and should it or something like it be revived? And if you think so, what should its highest priority be? Propulsion? Artificial gravity systems? Space Elevator?
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    about the advanced concepts institute of NASA. Found via twitter
Joris _

Report: Planets will collide in 5 billion years - 0 views

  • Mercury, Mars, Venus and Earth to smash into each other, either one at a time or all at once
  • by the end of that same 5 billion years the sun will have burned up its hydrogen and in a cooler state will inflate itself
  • the great "gas giants" of the outer solar system - Jupiter, Saturn, Uranus and Neptune - are extremely stable in their orbits, so they could remain where they are for a much longer time
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    Interesting, but obviously something is wrong. How the big giants can remain still if the inner planets and the sun vanish at the same time !
ESA ACT

B Palermo, aereo rientra in pista - cronaca - Repubblica.it - 0 views

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    It is a bout a commercial aircraft which encounterd a bird swarm during flight and was forced to go back to the departure point.
ESA ACT

Home - 0 views

shared by ESA ACT on 24 Apr 09 - Cached
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    Web site of the open-source database on bird migration
ESA ACT

The Utopia Experiment - 0 views

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    how life will be affected by climate change and the end of cheap oil during the next few decades?
ESA ACT

Sì della Consob spagnola all'Opa di Enel su Endesa - economia - Repubblica.it - 0 views

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    Enel buys ENDESA
Ma Ru

Euroscience Open Forum 2010 - 2 views

shared by Ma Ru on 24 Apr 09 - Cached
LeopoldS liked it
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    A conference ACT should consider going to.
  • ...4 more comments...
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    Perhaps some of ACTers will find this conference interesting... One of the talks: "Would Einstein be on Twitter? Exploring the potential and limits of Web 2.0 in science & science communication" [Edit] Oh, I see someone has already posted this link... a year ago. Anyway, if anyone of you plans to go, let me know - I'll be around ;-)
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    Just came back from ESOF 2010... I was on look for ACT agents undercover, but either they were not there or the cover was good enough... Anyway here's a few remarks from me (I could write a nice report... if you paid): 1) In general, to say that ESA was underrepresented on the conference as a whole is not enough (I guess ESA just failed to notice the event taking place). For instance, on the GMES presentation, ESA as such was not mentioned at all... at some point I started to wonder if ESA is actually involved in the project, but now I checked the website and apparently it is. On the other hand, GMES presentation was crap anyway, as after 1:15 of talking, I didn't gain any knowledge of what GMES is and what its contributions to the EU community will be. 2) There was a lot of talk about LHC and particle research (well, at least among those that I attended). Some of them were very good, some of them rather crap... 3) "Would Einstein be on Twitter? Exploring the potential and limits of Web 2.0 in science & science communication" talk - quite interesting, but focusing mainly on Science-to-Wide Public and Science-to-Journalists communication. Not really on Science-to-Science (as in Ariadnet). There was quite an extensive discussion with the public. You may be interested that Nature is trying to stimulate Web 2.0 communication, running blog service, but also I think a kind of social network - perhaps you'd like to have a look. In general the conclusion was that Web 2.0 is not so useful for scientific communication because practising it requires TIME (blogs, etc.) and often some professional skills (podcasts/videocasts, etc.), and scientists have neither of these. This can be run on corporation level (like ESA does actually), but then it looses the "intimate" character. 4) "How much can robots learn?" talk... very nicely presented: understandable by the wide public, but conveying the message... which is something like "we can already make the robots do stuff absolutely imp
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    Well, my comment was cut in half, and I don't feel like typing it again... the most important highlight from the rest is that the only presenter from ESA (ESTEC) did not show up on his talk because his department was undergoing some sort of audit on the same day :)
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    Fantastic comment - or better report!! thanks very much Marek! Who was the supposed no-show speaker from ESA?
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    Bernard Foing (he is actually one of the 8 ESA employees who have their own page on Wikipedia)...
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    written almost entirely by a guy called a "quest for knowledge" ... who will this be????? :-)
pacome delva

A Physics Paradox: Holes That Block Light -- Fox 2009 (1113): 3 -- ScienceNOW - 0 views

  • Make holes in a film of gold so thin that it's already semitransparent, and less light gets through.
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    A good example of "Can we use it for space.com"... For shielding of course !
nikolas smyrlakis

BBC NEWS | Asia-Pacific | Scientists bring snow to Beijing - 2 views

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    Did you know about this Weather Modification Office? Promising or dodgy?
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    Yes. In China it happens apparently quite often that weather is regionally modified, e.g. in order to have good weather conditions during certain events (like olympics in Beijing). But also in other countries weather modification is applied, for reasons of agriculture, pollution, skiing, etc. Obviously, one wonders on the environmental impact of such an artificial cloud feeding process with silver iodide. I just googled, stumbling upon this report http://www.weathermodification.org/AGI_toxicity.pdf which published the result: no environmentally harmful effects...
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    and w.r.t. ur question: I mean different weather conditions which we experience locally (like droughts or other extreme weather events) are (often) due to large-scale/global climatic changes. Hence, cloud seeding just describes a local, short-term mitigation of these events. However, there is a geoengineering proposal (so climate modification) which also suggests to seed clouds above the sea (i.e. increase cloud coverage, e.g. by using seaspray as cloud condesation nuclei), thereby increasing the planetary albedo (Earth reflectance) and reducing the energy reaching the Earth surface. If this idea is promising or not, I couldn't judge upon, but for sure it is worthwhile to take a closer look at.
LeopoldS

Google Code Blog: Introducing Closure Tools - 1 views

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    new open source tool from google .... Francesco: of any interest to us?
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    I don't think so, it is just a code optimizer for JavaScript, unless there are somewhere big JavaScript (web2.0) applications running that is not of much interest for us Other google labs systems e.g. FriendConnect could be useful for Ariadnet, maybe also the visualization and social graph API
Juxi Leitner

Mendeley, the-Last.fm-of-research, could be world's largest online research paper datab... - 4 views

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    smells like ariadnet for ariadna papers and researchers
  • ...1 more comment...
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    Ideed, seems like what we dream for ariadnet... However could have been good to allow the creation of groups. I will try it next week. The possibility to "Explore research trends and statistics" will please Leopold ;)
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    I am on mendeley now and I like it so far ! You can check my page on http://www.mendeley.com/profiles/pacome-delva/
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    am also on Medelay since some time - think that Tobias has showed it to me. Nice but did not actually use it yet really ....
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