Skip to main content

Home/ Diigo In Education/ Group items matching "gas" in title, tags, annotations or url

Group items matching
in title, tags, annotations or url

Sort By: Relevance | Date Filter: All | Bookmarks | Topics Simple Middle
Jeff Woodcock

Why do so many oil spills happen? - CSMonitor.com - 0 views

www.csmonitor.com/...y-do-so-many-oil-spills-happen

spills oil

shared by Jeff Woodcock on 20 Nov 12 - No Cached
    • Jeff Woodcock
      Jeff Woodcock on 20 Nov 12
       
      hard part
  • Jeff Woodcock on 20 Nov 12
     
    "n brief, because there are a lot of tricky steps to get oil from inside the Earth to inside, say, your gas tank. Oil spills can be caused by the accidental or intentional release of any form of petroleum during any point in the oil production process, from drilling, refining, or storing to transporting. Oil can be spilled when a pipeline breaks, ships collide or are grounded (as happened earlier this month along the Great Barrier Reef), underground storage tanks leak, or in the current case, when an oil rig explodes or is damaged. IN PICTURES: Big Environmental Disasters Some oil was spilled when the Deepwater Horizon rig first burst into flames on April 20 in the Gulf, injuring crew members and sending a billowing plume of black smoke into the sky that could be seen by satellite. The oil rig, located about 51 miles (82 kilometers) southeast of Venice, La., then sank into the Gulf waters Thursday morning, creating concern that more oil could spill. Oil spills can also happen naturally: Oil is released into the ocean from natural oil seeps on the seafloor. The best known such seep is Coal Oil Point along the California coast where an estimated 2,000 to 3,000 gallons (7,570 to 11,400 liters) of crude oil is released each day."
Brandie Hayes

Institute for Global Environmental Strategies >> Carbon City - 19 views

esseacourses.strategies.org/module.php

student activity reduction of greenhouse gases

shared by Brandie Hayes on 24 Apr 13 - No Cached
  • Brandie Hayes on 24 Apr 13
     
    Great activity to help students use NASA data in order to develop a community-based strategy to reduce greenhouse gas emission. Includes additional resources (articles, websites, NASA instruments) to help students learn about CO2 emissions, what is being done around the world, to decrease CO2 emissions, and what they can do. 
Martin Burrett

Review: How to teach Secondary Science by @CatrinGreen - 13 views

ukedchat.com/...condary-science-by-catringreen

Science book review

shared by Martin Burrett on 09 Oct 16 - No Cached
  • Martin Burrett on 09 Oct 16
     
    We all remember science lessons from our school days. Whether the lessons were with the more 'characteristic' teachers in the school, or whether you all released the gas taps when the teacher foolishly left the room, we all seemed to miss the link that science is life! And what an opportunity science teachers have in releasing the magic of life to their pupils, answering BIG questions like "Why am I like my parents?", or "What will my life be like in 2050?", or "Why is Pripyat a deserted town?"
Jac Londe

Startup turns carbon dioxide into fuels - 1 views

phys.org/...rtup-carbon-dioxide-fuels.html

co2 dioxyde carbon carbon dioxide fuels science

shared by Jac Londe on 18 Jun 12 - No Cached
  • 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.
  • ...2 more annotations...
  • 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.
Jennie Snyder

Atul Gawande: How Do Good Ideas Spread? : The New Yorker - 36 views

www.newyorker.com/...130729fa_fact_gawande

Innovation

shared by Jennie Snyder on 01 Aug 13 - No Cached
  • Why do some innovations spread so swiftly and others so slowly
  • Consider the very different trajectories of surgical anesthesia and antiseptics, both of which were discovered in the nineteenth century.
  • The first public demonstration of anesthesia was in 1846.
  • ...18 more annotations...
  • nsisted that he had found a gas that could render patients insensible to the pain of surgery.
  • The idea spread like a contagion, travelling through letters, meetings, and periodicals. By mid-December, surgeons were administering ether to patients in Paris and London. By February, anesthesia had been used in almost all the capitals of Europe, and by June in most regions of the world.
  • On October 16, 1846, at Massachusetts General Hospital, Morton administered his gas through an inhaler in the mouth of a young man undergoing the excision of a tumor in his jaw.
  • Four weeks later, on November 18th, Bigelow published his report on the discovery of “insensibility produced by inhalation” in the Boston Medical and Surgical Journal.
  • There were forces of resistance, to be sure. Some people criticized anesthesia as a “needless luxury”; clergymen deplored its use to reduce pain during childbirth as a frustration of the Almighty’s designs.
  • Yet soon even the obstructors, “with a run, mounted behind—hurrahing and shouting with the best.” Within seven years, virtually every hospital in America and Britain had adopted the new discovery.
  • Sepsis—infection—was the other great scourge of surgery. It was the single biggest killer of surgical patients, claiming as many as half of those who underwent major operations
  • nfection was so prevalent that suppuration—the discharge of pus from a surgical wound—was thought to be a necessary part of healing.
  • In the eighteen-sixties, the Edinburgh surgeon Joseph Lister read a paper by Louis Pasteur laying out his evidence that spoiling and fermentation were the consequence of microorganisms. Lister became convinced that the same process accounted for wound sepsis.
  • Lister had read about the city of Carlisle’s success in using a small amount of carbolic acid to eliminate the odor of sewage, and reasoned that it was destroying germs. Maybe it could do the same in surgery.
  • During the next few years, he perfected ways to use carbolic acid for cleansing hands and wounds and destroying any germs that might enter the operating field.
  • The result was strikingly lower rates of sepsis and death.
  • Far from it.
  • Surgeons soaked their instruments in carbolic acid, but they continued to operate in black frock coats stiffened with the blood and viscera of previous operations—the badge of a busy practice.
  • hey reused sea sponges without sterilizing them.
  • It was a generation before Lister’s recommendations became routine and the next steps were taken toward the modern standard of asepsis—that is, entirely excluding germs from the surgical field, using heat-sterilized instruments and surgical teams clad in sterile gowns and gloves.
  • Maybe ideas that violate prior beliefs are harder to embrace. To nineteenth-century surgeons, germ theory seemed as illogica
  • The technical complexity might have been part of the difficulty. Giving Lister’s methods “a try” required painstaking attention to detail.
Randolph Hollingsworth

SECME, Inc. - Diversity in STEM Education - 10 views

www.secme.org/Default.aspx

accelerated program college

shared by Randolph Hollingsworth on 18 Mar 11 - No Cached
  • Randolph Hollingsworth on 18 Mar 11
     
    "Our Mission To increase the pool of historically underrepresented and under-served students who will be prepared to enter and complete post-secondary studies in science, technology, engineering and mathematics (STEM); thus creating a diverse and globally competitive workforce." Started in 1975 as Southeastern Consortium for Minorities in Engineering by engineering deans at AL, FL, GA Tech, USC, UTn, Tuskegee - now partners in 17 states
Susan Smith

More Remote Learners in Your Future | From the Bell Tower - 7/16/2009 - Library Journal - 0 views

www.libraryjournal.com/...CA6671395.html

blog education teaching learning elearning blended learning technology

shared by Susan Smith on 23 Jul 09 - Cached
  • Susan Smith on 23 Jul 09
     
    What does this have to do with higher education? High gas prices got adult learners questioning the value of driving an hour each way to a college campus. Suddenly, online learning became vastly more attractive to a whole segment of higher education's market. Articles about fuel prices driving students to online courses became as prevalent as those about the impact of the recession on higher education are right now. While the price of fuel has retreated to a more manageable range, the number of Americans flocking to online higher education has shown no such decline.
Betsy Morris

Social Bookmarking In The Classroom - 51 views

livebinders.com/...present

social bookmarking web2.0 education howto

shared by Betsy Morris on 23 Mar 10 - Cached
  • var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www."); document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E")); try { var pageTracker = _gat._getTracker("UA-1741032-1"); pageTracker._trackPageview(); } catch(err) {} 1
  • Betsy Morris on 24 Mar 10
     
    Excellent, concise explanation of social bookmarking. Also an ad for Delicious, since it uses only that tool as an example, but tabs at top offer explanations of Diigo, too.
Y R

A Google a Day - 20 views

www.agoogleaday.com/#date=2011-08-10

shared by Y R on 08 Aug 18 - No Cached
    • Y R
      Y R on 08 Aug 18
       
      xxz zxcv ga as gas sd t sdf gsdfgfd
  • There'
    • Y R
      Y R on 08 Aug 18
       
      aerftqwaerwe qr qwe
Catherine Hainstock

http://www.classicalcomics.com/education/FreeDownloads/DulceEtDecorumEst.pdf - 3 views

www.classicalcomics.com/...DulceEtDecorumEst.pdf

war history WWI poet British poison gas warfare

shared by Catherine Hainstock on 15 Jan 13 - No Cached
  • Catherine Hainstock on 15 Jan 13
     
    FREE DOWNLOAD: PDF Comic Wilfred Owen's poem "Dulce et Decorum Est" from Classical Comics. Perfect for using in English class or history of WWI. 
Dave Fones

Japanese Real Estate Bubble Recoverry? - 0 views

www.doctorhousingbubble.com/g-its-way-to-the-united-states

real estate real estate bubble Japan

shared by Dave Fones on 17 Jul 12 - No Cached
  • look at economic trends
  • it is becoming more apparent that we may be entering a time when low wage jobs dominate and home prices remain sluggish for a decade moving forward.
  • looking at the Federal Reserve’s quantitative easing program, growth of lower paying jobs, baby boomers retiring, and the massive amount of excess housing inventory we start to see why Japan’s post-bubble real estate market is very likely to occur in the United States.
  • ...9 more annotations...
  • both economies had extraordinarily large real estate bubbles.
  • Massive real estate bubble (check) -Central bank bailing out banks (check) -Bailed out banks keep bad real estate loans on their books at inflated values (check) -Government taking on higher and higher levels of debt relative to GDP (check) -Employment situation stabilizes with less secure labor force (check) -Home prices remain stagnant (check)
  • the United States had never witnessed a year over year drop in nationwide home prices since the Great Depression.
  • home prices are now back to levels last seen 8 years ago.  The lost decade is now nipping at our heels but what about two lost decades like Japan?
  • the U.S. has such a large number of part-time workers and many of the new jobs being added are coming in lower paying sectors signifies that our economy is not supportive of the reasons that gave us solid home prices for many decades. 
  • young Japanese workers, some in their late 20s or early 30s, already resigned that they would never buy a home.
  • The notion that housing is always a great investment runs counter to what they saw in their lives.  Will they even want to buy as many baby boomers put their larger homes on the market
  • many of our young households here are now coming out with massive amounts of student loan debt.
  • Lower incomes, more debt, and less job security.  What this translated to in Japan was stagnant home prices for 20 full years.  We are nearing our 10 year bear market anniversary in real estate so another 10 is not impossible.  What can change this?  Higher median household incomes across the nation but at a time when gas costs $4 a gallon, grocery prices are increasing, college tuition is in a bubble, and the financial system operates with no reform and exploits the bubble of the day, it is hard to see why Americans would be pushing home prices higher.
  • Dave Fones on 17 Jul 12
     
    Explains how Japan has responded to the breaking of their real estate market bubble and the effect it has had on Japan's economy
Randolph Hollingsworth

EDUCAUSE hubsite for resources related to the GA State eReserves case - 6 views

www.educause.edu/...gastate

copyright fair use

shared by Randolph Hollingsworth on 08 Jun 12 - No Cached
  • Randolph Hollingsworth on 08 Jun 12
     
    Some resources on the GSU ereserves case
Jac Londe

Making Oil from Plastic - 34 views

www.oil-price.net/...making-oil-from-plastic.php

oil plastic science plastiques

shared by Jac Londe on 14 Oct 10 - No Cached
  • 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
  • ...3 more annotations...
  • 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.
1 - 20 of 26 Next ›
Showing 20▼ items per page