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Jeff Woodcock

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

    • Jeff Woodcock
       
      hard part
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    "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."
dpurdy

Hydrogen vehicle - Wikipedia, the free encyclopedia - 13 views

    • dpurdy
       
      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.
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  • 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]
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    Fuel cell cars are expensive.  The fuel cell costs a lot
Marc Patton

The New Media Consortium | Sparking innovation, learning and creativity. - 26 views

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    The NMC (New Media Consortium) is an international community of experts in educational technology - from the practitioners who work with new technologies on campuses every day; to the visionaries who are shaping the future of learning at think tanks, labs, and research centers; to its staff and board of directors; to the advisory boards and others helping the NMC conduct cutting edge research.
Brianna Crowley

Tanks, Jets or Scholarships? - NYTimes.com - 24 views

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    Comparison between our foreign war efforts vs. our foreign investment in public education.
Steven Young

Demography and the Future of Secularism - Boston.com - 1 views

    • Steven Young
       
      The American Enterprise Institute is one of the leading conservative think tanks. The AEI, and the conservative movement in general, have an interest in a more religious population, since religious voters are more likely to vote Republican and for conservative parties elsewhere in the world. Therefore, one needs to skeptical of research emanating from a think tank with a strong ideological bias; especially when that research serves the interests of the institution.
  • Across the world, "population change is reversing secularism and shifting the center of gravity of entire societies in a conservative religious direction." The same will be true here in the United States, where religious families have more children than non-religious ones.
  • It's easy to underestimate the role that population change can have in social change, Kaufmann says, but it can have a huge role, especially when differences in values drive differences in fertility
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  • -- demographer
  • Americans and Europeans
  • Americans and European
  • the fringe of ultra-Orthodox pupils in Israel's Jewish primary schools in 1960 has ballooned: they now comprise a third of the Jewish first grade class. They are gaining power: in Jerusalem, Haredim rioted in late December, demanding the right to segregate women on buses, and have already elected the city's first Haredi mayor.
  • the ultra-Orthodox may form a majority of observant American and British Jews by 2050
  • In the United States, Republicans have a similar values-driven fertility advantage -- an advantage, Kaufmann argues, which will outweigh the Democratic advantage of increased immigration, in part because many immigrants are conservative on social issues and maximalist in their family planning.
  • "In Seattle, there are nearly 45 percent more dogs than children. In Salt Lake City, there are nearly 19 percent more kids than dogs.”
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    Summary of article from the American Enterprise Institute journal, "The American", that claims that future of the U.S. is more religious than secular due to the large family size of religious fundamentalists.
Stéphane Dufournet

TRACES | Théories et Réflexions sur l'Apprendre, la Communication et l'Éducat... - 2 views

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    Think & do tank sur la médiation scientifique
Daryl Bambic

Daniel Pink's Think Tank: Flip-thinking - the new buzz word sweeping the US - Telegraph - 117 views

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    ...But one American teacher is taking a different approach - and in the process, he's offering a lesson in innovation for organisations of every kind.
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    ...But one American teacher is taking a different approach - and in the process, he's offering a lesson in innovation for organisations of every kind.
Margaret FalerSweany

U.S. high school dropout rate reaches record low, driven by improvements among Hispanic... - 12 views

  • Just 7% of the nation’s 18-to-24 year olds had dropped out of high school, continuing a steady decline in the nation’s dropout rate since 2000, when 12% of youth were dropouts.
  • The decline in the size of the Hispanic dropout population has been particularly noteworthy because it’s happened at the same time that the Hispanic youth population is growing.
  • census data show that Hispanics have reached a record high school completion rate.
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  • The dropout rate for black youth also was at a record low in 2013 (8%) and has fallen by nearly half since 2000 (15%).
Jac Londe

POLITIQUE : WIKILEAKS - Les secrets du chevalier blanc, actualité Tech & Net ... - 6 views

    • Jac Londe
       
      Cet homme vous veut du bien, il permet de chasser les hypocrites, les criminels et les menteurs du pouvoir. Wikileaks, c'est Millenium sur le Web.
  • WIKILEAKS
  • Lancé en janvier 2007
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  • WikiLeaks fascine la presse, qui voit en lui une partie de son avenir.
  • Une équipe mystérieuse
  • Menacé par les services secrets américains et par tous les acteurs qu'il bouscule, WikiLeaks se protège. Pas de bureau ou d'adresse physique : seule une boîte postale à l'université de Melbourne, ainsi que des adresses e-mail anonymisées permettent aux informateurs de contacter l'équipe.
  • L'infrastructure technique, parfois en peine par manque de financement, est basée en Suède, chez un hébergeur lié au très controversé The Pirate Bay. D'autres serveurs sont répartis dans le monde entier,
  • le budget annuel de 600.000 dollars n'en est pas pour autant bouclé.
  • Le porte-parole, Julian Assange, a toutefois mis en place un comité éditorial restreint, dont neuf noms sont dévoilés. Parmi eux, Wang Dan, l'un des 21 étudiants "les plus recherchés" par la Chine après les manifestations de Tiananmen en 1989, le Britannique Ben Laurie, génie mondialement reconnu de la cryptographie, ou encore le Brésilien Chico Whitaker, cofondateur du Forum social mondial.
  • WikiLeaks a travaillé avec des élus islandais sur l'Icelandic Modern Media Initiative (IMMI)
  • Son objectif dans la vie ? "Provoquer ou orienter des réformes politiques", en révélant des informations jusque-là cachées aux citoyens. Un peu comme ce qu'avait fait son modèle, Daniel Ellsberg, en 1971 : cet ancien analyste de la RAND Corporation (un très influent think tank américain) avait alors transmis à la presse les "Pentagon papers"
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    Julian Assange
jsilverstein

4Teachers : Main Page - 7 views

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    4Teachers Family of Tools include -- rubistar, trackstar, think tank, etc
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    This site contains rubistar, and pbl, quizstar, and many other free tools for teachers to use. With rubistar, project-specific rubrics can be prepared in 10 minutes.
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    A teacher to teacher blog supporting tech in the classroom.
A Gardner

Brain Food: Realistic Lateral Thinking Puzzles - 201 views

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    Link from coxmath.blogspot
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    These puzzles are not for me. Perhaps I'm too right-brained.
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    It's probably my Engineering background but some of these assume (incorrectly) alot. For example. "A man is lying dead in a room. There is a large pile of gold and jewels on the floor, a chandelier attached to the ceiling, and a large open window." "Lying" leads one to believe the man is being held down by weight. If we assume he properly set his ballasts for zero/neutral buoyancy he would be floating especially given his now empty tank. Also most wreckage divers use some form of balloon or cabling system attached to a boat to help "carry" heavy loads to the surface. So he wouldn't have been held down by the find. Finally, only the most experienced divers, with the proper training dive for salvage. An experience diver would never be caught out with no air. Not to mention the problems states there is an easy access path with the "large window" so even if things went completely wrong, the diver could have at least tried for the surface. I'm with Sigrid, not for me. ;-)
Marti Pike

Teachers: Five Ways to Ease Back into School | Edutopia - 49 views

  • planning to see kids on my first day or two back to school
    • Marti Pike
       
      Find a techy way to arrange this for my 5th grade teachers missing their students now in Middle School.
    • Marti Pike
       
      Perhaps a lunchtime Skype!
  • If you know that on that first day you will return to your classroom you'll have a friend to help and talk with it'll be much easier.
    • Marti Pike
       
      For the kids too.  See if parents can let you know who they are then make arrangements for them to pass notes in the halls and meet at lunch. 
  • fun back-to-school tasks
    • Marti Pike
       
      Rebuild my webpage.  Create my first 3 Committee webpages so I'll feel like I'm ahead. Watch video clips and TedEd flip them. Marti Pike less than a minute ago Print, read, and mark up interesting articles that might be used in class or committees.  
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  • Our mindset is the key to how we experience our reality. If we can help our minds land on thoughts that are energizing, empowering, and affirming then we'll experience our return to school in an easier way.
    • Marti Pike
       
      See also Carol Dweck's Mindset.  
  • The key is learning to shift these stories into interpretations that offer possibilities and empowerment
  • a rut story. A different interpretation could be
    • Marti Pike
       
      This committee they've made me chair might turn out to be a powerful Think Tank on issuses that are important to me. I'm looking carefully for applications. 
  • Our thoughts create our realities
    • Marti Pike
       
      "Nothing is but what thinking makes it so."  Shakespear
  • rejuvenated
    • Marti Pike
       
      I spent time at the Family History Center. 
  • no more than three hours a day of work.
    • Marti Pike
       
      It felt that way because I did the things I enjoyed about my job...and a few "must dos."
Comrad Compadre

DOJ won't help FCC fight state laws that harm municipal broadband | Ars Technica - 1 views

  • DOJ attorney told a federal appeals court last week that "Respondent United States of America takes no position in these cases."
    • Comrad Compadre
       
      Arguably one of the best lines to come out of the US DOJ
  • The DOJ's decision to stay out of the case was cheered by Randolph May, who was an FCC lawyer between 1978 and 1981. May opposes both the municipal broadband and net neutrality decisions and today runs a "free market-oriented think tank" called The Free State Foundation. He wrote that "the Department of Justice's curt statement advising the court that it takes no position in the appeal of the FCC's preemption of state laws restricting local government broadband networks is very curious. As someone who served as FCC Associate General Counsel, I can tell you this is a very rare occurrence."
Tara Heath

Know Your Rights | Students' Rights | American Civil Liberties Union - 2 views

  • Do I have First Amendment rights in school? You have the right to speak out, hand out flyers and petitions, and wear expressive clothing in school — as long as you don’t disrupt the functioning of the school or violate school policies that don’t hinge on the message expressed. What counts as “disruptive” will vary by context, but a school disagreeing with your position or thinking your speech is controversial or in “bad taste” is not enough to qualify. Courts have upheld students’ rights to wear things like an anti-war armband, an armband opposing the right to get an abortion, and a shirt supporting the LGBTQ community. Schools can have rules that have nothing to do with the message expressed, like dress codes. So, for example, a school can prohibit you from wearing hats — because that rule is not based on what the hats say — but it can’t prohibit you from wearing only pink pussycat hats or pro-NRA hats. Outside of school, you enjoy essentially the same rights to protest and speak out as anyone else. This means you’re likely to be most protected if you organize, protest, and advocate for your views off campus and outside of school hours. You have the right to speak your mind on social media, and your school cannot punish you for content you post off campus and outside of school hours that does not relate to school.
  • Can my school tell me what I can and cannot wear based on my gender? Public schools can have dress codes, but under federal law dress codes can’t treat students differently based on their gender, force students to conform to sex stereotypes, or censor particular viewpoints. Schools can’t create a dress code based on the stereotype that only girls can wear some types of clothes and only boys can wear other types of clothes. For example, your school can require that skirts must be a certain length, but it cannot require that some students wear skirts and prohibit others from doing so based on the students’ sex or gender expression. That also applies to pants, ties, or any other clothing associated with traditional gender roles. Dress codes also must be enforced equally. For example, rules against “revealing” clothing, such as bans on tank tops or leggings, shouldn’t be enforced only or disproportionately against girls. All students should be allowed to wear clothing consistent with their gender identity and expression, whether they identify as transgender or cisgender. This also applies to homecoming, prom, graduation, and other special school events. Schools shouldn’t require different types of clothing for special events based on students’ sex or gender identity — for example, requiring tuxedos for boys and prom dresses for girls.
  • Can my school discipline me for participating in a walkout? Because the law in most places requires students to go to school, schools can discipline you for missing class. But schools cannot discipline you more harshly because of the message or the political nature of your action. The punishment you could face will vary by your state, school district, and school. If you’re planning to miss a class or two, look up the policy for unexcused absences for your school and school district. If you’re considering missing several days, read about truancy. Also take a look at the policy for suspensions. If you are facing a suspension of 10 days or more, you have a right to a formal process and can be represented by a lawyer. Some states and school districts require a formal process for fewer days. You should be given the same right to make up work just as any other student who missed classes.
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