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Temperature-induced film deformation produces teeth-like structures - 0 views

www.rsc.org/...buckling_microgears.asp phy micromechanics microgears
shared by pacome delva on 01 Sep 09 - Cached
  • Thin films can buckle round curved substrates to form gears for micromachines
  • Until now, making microgears has required expensive etching and micromachining. Chen's method only requires a change in temperature - no external guidance is required.
  • The team have made gears with diameters of 6 millimetres but they are keen to go smaller and make true microgears that could be used in biomedical engineering or aerospace.
  • ...1 more annotation...
    • pacome delva
      pacome delva on 01 Sep 09
       
      Where microgears could be useful in space ?
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Tiny Laser Could Light the Way to New Microchip Technology -- Cho 2009 (831): 2 -- Scie... - 0 views

sciencenow.sciencemag.org/...2 phy nan laser plasmonics
shared by pacome delva on 01 Sep 09 - Cached
  • The nanometer-sized gizmo could provide a key tool for researchers trying to develop a new type of microchip technology called "plasmonics" that mixes electronics and optics.
  • The channel in Zhang's device measures as little as 40 nanometers wide by 5 nanometers high, far smaller than the roughly 250-nanometer diameter of a conventional laser of a similar wavelength.
  • Some physicists and engineers are hoping to build nanocircuits that manipulate plasmonics to marry high-speed electronics and high-speed optics.
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Solar panels shaped like clay roof tiles - Springwise - 0 views

springwise.com/...solepowertile solar power
shared by Juxi Leitner on 16 Sep 09 - Cached
  • Juxi Leitner on 16 Sep 09
     
    I wonder how much more expensive they are...
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Better world: Take Friday off… forever - 15 September 2009 - New Scientist - 0 views

www.newscientist.com/...d-take-friday-off-forever.html social engineering
shared by Juxi Leitner on 16 Sep 09 - Cached
  • According to Facer, it was the crash of 1929 that led to the five-day week. "Before that it was common to work six-day weeks with 12 to 14-hour days. When the Great Depression hit, the idea was to share work around to get more people into employment." During the next big financial crisis in the 1970s, there was much talk of moving to a four-day week, but for a variety of reasons that didn't pan out. "Things are different now," says Facer. "I wouldn't be surprised if we could get 50 per cent or more of the workforce working four-day weeks in the next few years." Next up: the three-day week.
  • Ma Ru on 16 Sep 09
     
    As ACT is tasked to investigate innovative working methods... DO IT!!! :)
  • nikolas smyrlakis on 18 Sep 09
     
    but then we also have to ask who is willing to work on saturdays one day more for an extra 20% ...
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Liquid crystals bend over backwards for electricity - 0 views

www.rsc.org/...iquid_crystals_electricity.asp phy soft_matter liquid_crystal flexoelectricity
shared by pacome delva on 15 Sep 09 - Cached
  • Antal Jákli, at Kent State University, and colleagues have made use of a property called flexoelectricity, where materials, such as LCs, convert mechanical energy into electrical energy when they are flexed.
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Space headache: a new health complaint for astronauts | COSMOS magazine - 0 views

www.cosmosmagazine.com/...ew-health-complaint-astronauts astronauts headache leiden
shared by nikolas smyrlakis on 03 Jun 09 - Cached
  • nikolas smyrlakis on 03 Jun 09
     
    a survey made by Leiden University yeah!
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Google Wave Preview - 2 views

wave.google.com communication tools technology google web2.0
shared by Francesco Biscani on 29 May 09 - Cached
  • Francesco Biscani on 29 May 09
     
    Looks really cool! And it's open source :)
  • Ma Ru on 01 Nov 09
     
    Don't know if you've noticed, but the current version is becoming more and more usable... did you try it already in your collaborative work?
  • Francesco Biscani on 01 Nov 09
     
    We've used it a bit with Juxi and Leopold for the work on the new issue of acta futura, and I think it is quite nice. The problem right now is that only a few people in the team have an account (and I have exhausted my invitations). Maybe you have one or two you are willing to share? :)
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New Pattern Found in Prime Numbers - 0 views

www.physorg.com/news160994102.html mathematics prime numbers physics benfords law
shared by nikolas smyrlakis on 14 May 09 - Cached
  • LeopoldS on 15 May 09
     
    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?
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Travel and creativity: Expats at work | The Economist - 0 views

www.economist.com/...displaystory.cfm creativity education inspiration
shared by Joris _ on 19 May 09 - Cached
LeopoldS liked it
  • LeopoldS on 20 May 09
     
    well - might well be that the first experiments just measured that Americans are a bit more stupid or don't remember what a candle is ... :-)
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WISE Mission Assembled and Preparing for Launch - NASA Jet Propulsion Laboratory - 0 views

www.jpl.nasa.gov/...features.cfm MAD asteroids
shared by Joris _ on 15 Jun 09 - Cached
  • The mission will survey the entire sky at infrared wavelengths,
  • Among expected finds from WISE are hundreds of thousands of asteroids in our solar system's asteroid belt,
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Sex, Drugs, and Rock'n Roll... a real paradigm in our brain... - 0 views

www.washingtonpost.com/...AR2007053101848.html neurophysiology Fun curiosity
shared by ESA ACT on 24 Apr 09 - Cached
  • ESA ACT on 24 Apr 09
     
    If you have listened Beatles under strange circumstances, probably you will find lot of answers to your unspeakable questions...
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Are mirrors the best way to deflect asteroids? - space - 09 October 2007 - New Scientis... - 0 views

space.newscientist.com/article.ns neo asteroids
shared by ESA ACT on 24 Apr 09 - No Cached
  • ESA ACT on 24 Apr 09
     
    Max on New Scientist
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THEWEBLIST.net | what people are clicking on today - 0 views

theweblist.net bookmarks social Web2.0 aggregator
shared by ESA ACT on 24 Apr 09 - Cached
  • ESA ACT on 24 Apr 09
     
    Cool most visited web site list
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Twilight of the GPU - 1 views

arstechnica.com/...gpu-sweeney-interview.ars technology forecast
shared by ESA ACT on 24 Apr 09 - Cached
  • ESA ACT on 24 Apr 09
     
    Announcement of the end of an era.
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What are the greatest challenges to the advancement of science and research? - 0 views

www.publicservice.co.uk/article.asp science research future
shared by ESA ACT on 24 Apr 09 - Cached
  • ESA ACT on 24 Apr 09
     
    Our entry may not have made it to the publication but perhaps the other opinions will give some food for thought
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Online Technology Forecast - 10 views

www.techcast.org/Forecasts.aspx diigo
shared by Dario Izzo on 18 Nov 09 - Cached
  • Dario Izzo on 18 Nov 09
     
    Reminds me of something .... :)
  • pacome delva on 19 Nov 09
     
    Star travel in 2069 ! Completely crazy this guys.. and what do you do once you are around Betelgeuse or Proxima ?
  • Ma Ru on 19 Nov 09
     
    Not as crazy as "one united space agency in 2020" :)
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BBC NEWS | Asia-Pacific | Scientists bring snow to Beijing - 2 views

news.bbc.co.uk/...8337337.stm china asia Weather Modification Office climate change
shared by nikolas smyrlakis on 02 Nov 09 - Cached
  • nikolas smyrlakis on 02 Nov 09
     
    Did you know about this Weather Modification Office? Promising or dodgy?
  • Friederike Sontag on 03 Nov 09
     
    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...
  • Friederike Sontag on 03 Nov 09
     
    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.
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Prepare and transmit electronic text - American Institute of Physics - 2 views

www.aip.org/...compuscript.html acta futura publications latex xml INF
shared by LeopoldS on 07 Nov 09 - Cached
  • LeopoldS on 07 Nov 09
     
    new revTex version available ... what do they mean by this? how do they use XML and latex to XML? would this also be an option for acta futura? "While we appreciate the benefits to authors of preparing manuscripts in TeX, especially for math-intensive manuscripts, it is neither a cost-effective composition tool (for the volume of pages AIP currently produces) nor is it a format that can be used effectively for online publishing."
  • Francesco Biscani on 11 Nov 09
     
    Dunno really, they may have some in-house process that converts LaTeX to XML for some reason. Probably they are using some subset of SGML, the standard generalized markup language from which both HTML and XML derive. Don't think is really relevant for Acta Futura, and the rest of the world seems to get along with TeX just fine...
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