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Frank Sprich

Iran urges Yemen's neighbors to stay out of rebellion - CNN.com - 0 views

www.cnn.com/...index.html

shared by Frank Sprich on 13 Nov 09 - Snapshot
  • The Houthi claimed the airstrikes occurred within Yemeni territory, a claim both the Saudi and Yemeni governments denied. Meanwhile, Yemen has accused Iran of supporting the rebels.
  • "The main reason for fighting this group is that it's up in arms in rebellion against Yemen's government and it is challenging the legitimacy of Yemen's central government in Sanaa,"
    • Frank Sprich
      Frank Sprich on 13 Nov 09
       
      Is Yemen doing anything to change their governmental systems?
Darryl Currie

UNICEF - At a glance: Sierra Leone - Sierra Leone's Mother and Child Health Week aims to im... - 0 views

www.unicef.org/...sierraleone_50092.html

shared by Darryl Currie on 01 Nov 09 - Snapshot
  • “We can guarantee that every child will be vaccinated against polio, every woman will receive vaccines and every child will be breastfed exclusively and grow healthily.”
  • Then I had no idea of the importance of sleeping under insecticide-treated bed nets, but now my baby and I sleep under bed nets.
Hadley Edwards

It's Elemental - The Element Fluorine - 0 views

education.jlab.org/...ele009.html

Fluorine Uses

shared by Hadley Edwards on 25 Sep 09 - Snapshot
    • Hadley Edwards
      Hadley Edwards on 25 Sep 09
       
      This is good for the uses of Fluorine, we could maybe  be selling toothpaste because compounds of it are used in toothpaste.  
Hadley Edwards

Chemical Elements.com - Fluorine (F) - 0 views

www.chemicalelements.com/...f.html

basic info Fluorine

shared by Hadley Edwards on 25 Sep 09 - Snapshot
Hadley Edwards

WebElements Periodic Table of the Elements | Fluorine | Essential information - 0 views

www.webelements.com/fluorine

Flurine facts

shared by Hadley Edwards on 25 Sep 09 - Snapshot
  • Hadley Edwards
    Hadley Edwards on 25 Sep 09
     
    This gives a brief description of our element and gives basic data that is clear and helpful.
Darryl Currie

Percents - 0 views

www.shodor.org/...index.html

percent error chemistry

shared by Darryl Currie on 22 Sep 09 - Snapshot
  • When working with measurements there is often some associated error
    -- usually measured as
    percent error:



    % error =

    true - approximate

    true

  • When working with measurements there is often some associated error
    -- usually measured as
    percent error:



    % error =

    true - approximate

    true

  • When working with measurements there is often some associated error
    -- usually measured as
    percent error:



    % error =

    true - approximate

    true






    For example, suppose we test a new thermometer for accuracy by using it to find the boiling point
    of pure water.
    The boiling point of pure water is 212°F but the thermometer measures
    212.9°F. What is the % error of the reading?




    % error =

    212 - 212.9

    212


    =

    -.9

    212


    = .004245283




    which is 0.425% to
    three sig figs. Note the absolute values; that's why the - sign was dropped.

  • Darryl Currie
    Darryl Currie on 22 Sep 09
     
    When working with measurements there is often some associated error -- usually measured as percent error:

    % error =
    true - approximate

    true


    For example, suppose we test a new thermometer for accuracy by using it to find the boiling point of pure water. The boiling point of pure water is 212°F but the thermometer measures 212.9°F. What is the % error of the reading?

    % error =
    212 - 212.9

    212
    =
    -.9

    212
    = .004245283

    which is 0.425% to three sig figs. Note the absolute values; that's why the - sign was dropped.
MICDS LIBRARY

Is the term 21st Century out of date? | U Tech Tips - 0 views

www.utechtips.com/-term-21st-century-out-of-date

shared by MICDS LIBRARY on 22 Sep 09 - Snapshot
  • with us and now its a matter of fitting their great work into our original framework. But the premise remains. Past models – the best they could be in their time – generally failed because teachers did not believe it was their job to teach technology.
    • MICDS LIBRARY
      MICDS LIBRARY on 22 Sep 09
       
      jjjjj
  • MICDS LIBRARY
    MICDS LIBRARY on 22 Sep 09
     
    with us and now its a matter of fitting their great work into our original framework. But the premise remains. Past models - the best they could be in their time - generally failed because teachers did not believe it was their job to teach technology.
annie goessling

Periodic Table of Elements: Magnesium - Mg (EnvironmentalChemistry.com) - 0 views

environmentalchemistry.com/...Mg.html

shared by annie goessling on 20 Sep 09 - Snapshot
  • Electrical: 0.226 106/cm
    • annie goessling
      annie goessling on 20 Sep 09
       
      conductivity
  • Thermal: 1.56 W/cmK
annie goessling

Science Resource Center -- Academic Journal Display - 0 views

galenet.galegroup.com/...SciRC

shared by annie goessling on 20 Sep 09 - Snapshot
  • entation with this mineral can have a significant effect on blood pressure in
    hypertensive subjects. The study summarized here was a double-blind controlled
    trial of magnesium supplementation in
    hypertensive women.
    • annie goessling
      annie goessling on 20 Sep 09
       
      use
  • These findings suggest that increased magnesium
    intake may be of value in the treatment of mild to moderate hypertension.
    • annie goessling
      annie goessling on 20 Sep 09
       
      use
annie goessling

It's Elemental - The Element Magnesium - 0 views

education.jlab.org/...ele012.html

shared by annie goessling on 20 Sep 09 - Snapshot
  • minerals dolomite (CaCO3·MgCO3) and carnallite
    (KCl·MgCl2·6H2O), but is most often obtained from
    seawater. Every cubic kilometer of seawater contains about 1.3 billion kilograms
    of magnesium (12 billion pounds per cubic mile).
    • annie goessling
      annie goessling on 20 Sep 09
       
      where found
  • second most abundant compound in the earth's
    crust
    • annie goessling
      annie goessling on 20 Sep 09
       
      lots of it
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