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Madeline Brownstone

Re-Greening in Africa - World Wide Web Foundation - 1 views

www.webfoundation.org/...greening-africa

Africa science and the environment ICT greening

shared by Madeline Brownstone on 30 Nov 09 - Cached
  • Madeline Brownstone on 30 Nov 09
     
    "The project will exploit the current infrastructure consisting of Internet cafes in larger towns, mobile phones available to most families or communities, and radios that are an important way of providing information to people. We expect the following outcomes: "
  • Madeline Brownstone on 30 Nov 09
     
    This project looks interesting. I wonder if any issues have arisen from it. It was only established this year as a service project of W3C, but what are the potential issues here?
Jaymee C

Solar start-up squeezes more juice from silicon cells | Green Tech - CNET News - 0 views

news.cnet.com/8301-11128_3-10350957-54.html

shared by Jaymee C on 15 Sep 09 - Cached
  • says it can produce a very efficient solar cell from silicon which will be in the market in two years.
    • Jaymee C
      Jaymee C on 15 Sep 09
       
      Area of Impact: Buisness and Employment. This is because something is being advertised.
  • The Lexington, Mass.-based company on Monday plans to disclose the details of its Self-Aligned Cell (SAC) architecture, a set of technologies it has developed to convert 18 percent of sunlight to electricity with polysilicon, the most common solar cell material.
    • Jaymee C
      Jaymee C on 15 Sep 09
       
      this may be good for the enviroment in the sense that there could be less batteries to be disposed of.
  • silicon solar cells
    • Jaymee C
      Jaymee C on 15 Sep 09
       
      IT system= cell phones
  • ...1 more annotation...
  • But the efficiency rating for the majority of commercially available silicon solar cells is in the 15 percent range. Panels using cells made from alternative materials, such as a combination of copper, indium, gallium, and selenide (CIGS), are lower efficiency--about 9 percent or 10 percent--but are cheaper to produce.
    • Jaymee C
      Jaymee C on 15 Sep 09
       
      Social and Ethical Issuse: Reliablitiy. this is because if a product isn't efficient how can we trust it to be reliable?
  • Jaymee C on 15 Sep 09
     
    This about the production of a silicon cell phone.
Rubayeth M

Are local solutions the future for government IT? - 0 views

www.guardian.co.uk/...government-it-local-nhs

security privacy electronic health records

shared by Rubayeth M on 07 Feb 11 - No Cached
  • Rubayeth M on 07 Feb 11
     
    Damian Green a person who insists not giving their medical information to Google Health and Microsoft Vault.
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