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Jac Londe

EIA-411 Data File - 17 views

    • Jac Londe
      NorAmeriCanada What do we have to think of this? Que devons-nous penser de ceci ? What do we learn from this graphic ? Quelles conclusions cognitives tirons-nous de ce graphique ?
Jac Londe

Making Oil from Plastic - 34 views

  • Making Oil from Plastic
  • Tons of plastic from Japan and US is left afloat in the Pacific Ocean, which is endangering marine life significantly.
  • Blest, a Japanese company has invented a safe and user friendly machine
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  • The machine is effective in recycling different kinds of plastic into oil.
  • Utilization doesn't just take into account the 20 percent of recycled plastic. But it also considers the incinerated 52 percent used for energy recovery like generating electric power or heat. Akinori Ito says "If we burn the plastic, we generate toxins and a large amount of CO2. If we convert it into oil, we prohibit CO2 production and at the same time, increase people's awareness about the value of plastic garbage"
  • Oil from Shale: Oil can be extracted from this fine grained, organic rich, sedimentary rock through pyrolysis, thermal dissolution or hyderogentation. Shale contains high concentrations of organic chemical compounds known as Kerogen. From this solid mixture, oil is extracted through chemical process. Shale can be effective converted into combustible oil shale gas and liquid hydrocarbons (shale oil). Global deposits of Shale are estimated to be around 2.8 trillion to 3.3 trillion barrels of restorable oil. Planet earth is blessed with about 600 known oil shale deposits, most of which is found in United States of America. Although several countries have oil hale deposits, known deposits of economic importance is found only in 33 countries.
Lara Kessler

TVA Kids: Hydroelectric Power - 0 views

    A short article on how hydroelectric energy works and how it is used.
Jac Londe

All Measures and Formulas - 48 views

    Everything you need to know about formats and calculations for all kinds of chemical elements and materials
Martin Burrett

Energy and the Environment - Impacts of Generating Electricity - 60 views

    A well made presentation about energy and the environment, with animated diagrams and lots of child-friendly information.
Brianna Crowley

Adam Kirk Edgerton: Why I Quit Teaching - 53 views

  • Who orders books? A classroom teacher. Who writes the curriculum? A classroom teacher. Who handles discipline? A classroom teacher.
  • Evaluations are done by peers, and the tools are developed by teachers. Teachers are hired by other teachers. There are no outside consultants, no central office administrators, and no superintendents.
  • Let it be the person who pays the electrical bill, who makes sure everyone gets paid, who is a sounding board for teachers. Let it be someone who still has to lesson plan, grade and walk in front of a room of children every day and figure out what's best for them, one day at a time.
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  • If we continue to treat our teachers like children, what will become of our children?
  • given leadership positions while remaining in the classroom for their entire careers.
  • I quit teaching because I was tired of feeling powerless. Tired of watching would-be professionals treated as children, infantilized into silence. Tired of the machine that turns art into artifice for the sake of test scores. Tired of being belittled, disrespected and looked down upon by lawyers, politicians, and decision-makers who see teaching as the province of provincials, the work of housewives that can be done by anyone.
    "If we continue to treat our teachers like children, what will become of our children?" Although this article is very confrontational, it does offer some solution-focused thinking. Teachers should be pushing our profession in these ways--prompting dialogue and debate among our communities and our faculties. 
Jac Londe

Startup turns carbon dioxide into fuels - 1 views

  • Today, carbon dioxide (CO2) is a hot topic. Scientists around the globe are searching for ways to store, dispose of, or prevent the formation of the greenhouse gas, which is a major driver of global climate change. Liquid Light hopes to take this concept one step further and harness waste CO2 as a source of carbon to make industrial chemicals and fuels.
  • Take CO2 and mix it in a water-filled chamber with an electrode and a catalyst. The ensuing chemical reaction converts CO2 into a new molecule, methanol, which can be used as a fuel, an industrial solvent or a starting material for the manufacture of other chemicals.
  • Bocarsly likes to call the process "reverse combustion" because it is like running a burning reaction backwards. Instead of burning fuel and oxygen to produce CO2, the CO2 converts back into fuel and oxygen.
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  • Cole set up a flask containing a solution of CO2 and a pyridinium catalyst dissolved in water. In place of sunlight, which emits a broad spectrum of wavelengths of light, she shined on the flask a blue light-emitting diode (LED) because it gives off certain wavelengths that are highly efficient at driving the reaction. In the flask she placed an electrode that is activated by particles of light, or photons. "We used a semiconductor electrode that would allow us to substitute light for electricity," said Cole.
  • The Princeton scientists did some additional studies, and made a surprising discovery: They could turn CO2, which contains only one carbon, into a compound with a carbon-carbon bond, which vastly increases the possibilities for creating commercial applications.
Martin Burrett

Succeeding With Science - 101 views

    A great site with some lovely flash based, age specific games and resource for topics across the science curriculum.
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