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Martin Burrett

Every Last Drop - 21 views

ukedchat.com/...every-last-drop

water sustainability environment

shared by Martin Burrett on 09 Feb 18 - No Cached
  • Martin Burrett on 09 Feb 18
     
    "A well designed water awareness site. Scroll down the page to reveal how the average person uses water everyday and ideas for reducing it."
dpurdy

Hydrogen vehicle - Wikipedia, the free encyclopedia - 13 views

en.wikipedia.org/...Hydrogen_vehicle

hydrogen what form infrastructure current

shared by dpurdy on 19 Mar 12 - Cached
    • dpurdy
      dpurdy on 19 Mar 12
       
      Is hydrogen sustainable? depends on the source. see this highlight.
  • While methods of hydrogen production that do not use fossil fuel would be more sustainable
  • The challenges facing the use of hydrogen in vehicles include production, storage, transport and distribution.
  • ...3 more annotations...
  • The hydrogen infrastructure consists mainly of industrial hydrogen pipeline transport and hydrogen-equipped filling stations like those found on a hydrogen highway. Hydrogen stations which are not situated near a hydrogen pipeline can obtain supply via hydrogen tanks, compressed hydrogen tube trailers, liquid hydrogen tank trucks or dedicated onsite production.
  • Hydrogen use would require the alteration of industry and transport on a scale never seen before in history. For example, according to GM, 70% of the U.S. population lives near a hydrogen-generating facility but has little access to hydrogen, despite its wide availability for commercial use.[64] The distribution of hydrogen fuel for vehicles throughout the U.S. would require new hydrogen stations that would cost, by some estimates approximately 20 billion dollars[65] and 4.6 billion in the EU.[66] Other estimates place the cost as high as half trillion dollars in the United States alone.[67]
  • Hydrogen fuel does not occur naturally on Earth and thus is not an energy source, but is an energy carrier. Currently it is most frequently made from methane or other fossil fuels. However, it can be produced from a wide range of sources (such as wind, solar, or nuclear) that are intermittent, too diffuse or too cumbersome to directly propel vehicles. Integrated wind-to-hydrogen plants, using electrolysis of water, are exploring technologies to deliver costs low enough, and quantities great enough, to compete with traditional energy sources.[2]
  • dpurdy on 19 Mar 12
     
    Fuel cell cars are expensive.  The fuel cell costs a lot
oconnortammy

Education World: Are You a Techno-Constructivist? - 33 views

www.educationworld.com/...tech005.shtml

EDGI M2T2

shared by oconnortammy on 24 Apr 17 - Cached
  • not only complements instruction but redefines it.
    • missboess
      missboess on 24 Apr 17
       
      This statement encompasses what I am trying to achieve in this resource design assessment. It also clearly links to the SMAR model of best ICT use in education, by implementing learning experience with technology that 'redefines' the activity. Meaning the activity is something that could not be done without the technology used.
  • help children build on their own experiences, construct their own meanings, create products, and solve problems successfully.
    • missboess
      missboess on 24 Apr 17
       
      Encompasses the constructivist theory I am using in the resource design and furthermore links to the method of inquiry.
  • long-term problem-solving and product-generating tasks
    • missboess
      missboess on 24 Apr 17
       
      In my resource design students will take part in a long term water sustainability project. A website will assist them in attaining access to multiple resources, communication with the outerworld (blogging) and creating products such as videos, visuals etc.
    • oconnortammy
      oconnortammy on 24 Apr 17
       
      How are you helping your students to connect to the outside world? Are they having dialogues with others?
  • ...1 more annotation...
  • See The Webquest Page or WebQuest.org for endless materials.)
    • missboess
      missboess on 24 Apr 17
       
      Webquest was used as an inspiration for my resource design, as it provides a useful platform for inquiry units to be created. There are endless examples on there. I really recommend you have a look at them. I decided to create my own website on weebly, as it provided more options and interactivity.
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