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Scientists make quantum breakthrough - 25 views

  • Scientists have demonstrated for the first time that atoms can be guided in a laser beam and possess the same properties as light guided in an optical communications fiber.
  • Abstract Speckle patterns produced by multiple independent light sources are a manifestation of the coherence of the light field. Second-order correlations exhibited in phenomena such as photon bunching, termed the Hanbury Brown–Twiss effect, are a measure of quantum coherence. Here we observe for the first time atomic speckle produced by atoms transmitted through an optical waveguide, and link this to second-order correlations of the atomic arrival times. We show that multimode matter-wave guiding, which is directly analogous to multimode light guiding in optical fibres, produces a speckled transverse intensity pattern and atom bunching, whereas single-mode guiding of atoms that are output-coupled from a Bose–Einstein condensate yields a smooth intensity profile and a second-order correlation value of unity. Both first- and second-order coherence are important for applications requiring a fully coherent atomic source, such as squeezed-atom interferometry.
  • Australian National University
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The American Conservative » Return of the War Party - 0 views

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    Before we let ourselves be stampeded into another unnecessary war, let us review a few facts that seem to contradict the war propaganda. First, last week's acknowledgment that Iran has enough enriched uranium for one atom bomb does not mean Iran is building an atom bomb. To construct a nuclear device, the ton of low-enriched uranium at Natanz would have to be run through a second cascade of high-speed centrifuges to produce 55 pounds of highly enriched uranium (HUE). There is no evidence Iran has either created the cascade of high-speed centrifuges necessary to produce HUE or that Iran has diverted any of the low-enriched uranium from Natanz. And the International Atomic Energy Agency inspectors retain full access to Natanz. And rather than accelerating production of low-enriched uranium, only 4,000 of the Natanz centrifuges are operating. Some 1,000 are idle. Why? Dr. Mohamed El-Baradei, head of the IAEA, believes this is a signal that Tehran wishes to negotiate with the United States, but without yielding any of its rights to enrich uranium and operate nuclear power plants.
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Build an Atom - 116 views

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    This webpage allows students to view the structure of atoms from simple hydrogen and Helium all the way up to the complex Ununoctium. http://ictmagic.wikispaces.com/science
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Students tap into technology - Pittsburgh Tribune-Review - 1 views

  • use their laptops to read "Don Quixote" and Dante's "Divine Comedy" on the Internet
  • Technology is the wave of the future
  • a computer program
  • ...7 more annotations...
  • "Most jobs require computers," noted Brittnee Stephen, 16, as she assembled a slideshow on her HP Mini laptop. "It's good that we're learning it now."
    • Ed Webb
       
      The technology is still very visible, if students are talking in terms of 'computers' rather than the skills involved. We don't talk about 'paper' but writing, critical reading etc. Yet here the platform itself is emphasized. Early days, I guess.
  • has just begun incorporating technology
    • Ed Webb
       
      Uh, no. They have been using 'technology' forever, in the form of, say, books.
  • students seem far more interested in learning via interactive technology than they had been with a chalkboard and an overhead projector
    • Ed Webb
       
      Well, the problem here is that some of that can be ascribed to novelty. Once every class uses 'interactive technology' (yuk) then how much difference will there be? The tools are great. All tools can be useful. But focus on the pedagogy, people!
    • Scott Merrick
       
      I'm for focusing on understanding. I love the word "pedagogy" because most lay people don't really know what it entails--theory (which can be anything institutional or community deems effective or correct), practice (which, as we know, can be summed up with the phrase "mileage will vary"), and some third thing which if I could come up with it I'd have the magic 3 elements in an effective argument. I think effective tools used effectively by effective teachers (there! 3 uses of one adjective!) will remain effective as long as they are used to promote understanding. No argument here, Ed, just sayin'...
    • Ed Webb
       
      Perhaps the magic third thing would be 'attitude' or 'state of mind'? Alternatively, perhaps another of those non-transparent terms, 'praxis'. The point I was trying to make, of course, was that it ain't what you use, it's the way that you use it.
  • "I think the kids that have turned school off because it's boring to them will come here and see something familiar,"
    • Ed Webb
       
      Boring and familiar seem to me to be closely related, not opposites. I suspect that often when students say their learning environment is 'boring' they mean 'challenging'.
  • Educational technology does not come cheaply
    • Ed Webb
       
      The cost of books is astronomical!
  • "Learning is changing,"
    • Ed Webb
       
      Was it EVER the case that we could "just deliver a lecture and expect all the kids to get it"?
    • Gregory Louie
       
      Computer technology in my classroom has revolutionized my teaching of biology. Instead of static images on a printed page, or talk and chalk, my students can manipulate 3-D images of DNA, RNA and proteins. These have even been embedded in a research-based learning progression that leads the students to a robust understanding of the foundational elements of molecular literacy. 1. Atoms and molecules are constantly in motion. (A visualization is not possible on a 2-3 printed page.) 2. All Atoms and molecules have a 3-D structure that determines how they interact with other particles. 3. Charges and other intermolecular forces play a role in atomic and molecular interactions. My students can see these for themselves, change the number of particles in a box, or the distribution of charge on a large particle or the temperature of the box and other thought experiments which they can follow in real-time. There is no way, I could do that without the computer!
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Free Technology for Teachers - 125 views

  • skip to main | skip to sidebar Pages Free Downloads Job Board Google Tools Tutorials Video Creation Resources Develop a PLN Work With Me Advertise Monday, June 21, 2010 Measure the Impact of Asteroids & Atomic Bombs Carlos Labs, a data architecture and data integration firm in Australia, has developed two Google Maps-based widgets that demonstrate the range of atomic weapons and the size of areas that could be affected by asteroid impacts.Ground Zero
  • size of an area that
  • TimeMaps is best described as a mash-up of encyclopedia
  • ...3 more annotations...
  • Investopedia
    • plaggeart
       
      This is a cool article!!! I like to use exclamation points to show my enthusiasm!!!!!
  • the new version of Google Earth is now a core component of G Suite for Education. This means that your students will be able to use Google Earth with the same account that they use for Google Drive, Classroom, Keep, and other core G Suite components.
    • plaggeart
       
      This is a great point!!
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    Free resources and lesson plans for teaching with technology
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    Good blog about free technology teachers can access for education
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Atomic Learning's eBook on How to Flatten Your Classroom - Movies - 1 views

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    Free ebook based on Atomic Learning workshop developed by Vicki Davis
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Attention versus distraction? What that big NY Times story leaves out » Niema... - 51 views

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    The web is a space whose very abundance of information - and whose very informational infrastructure - trains our attention to follow our interests. And vice versa. In that, it's empowering information as a function of interest. It's telling Vishal that it's better to spend time with video than with Vonnegut - simply because he's more interested in editing than in reading. Vishal needs needs no other justification for his choice; interest itself is its own acquittal. And we're seeing the same thing in news. While formal learning has been, in the pre-digital world, a matter of rote obligation in the service of intellectual catholicism - and news consumption has been a matter of the bundle rather than the atom - the web-powered world is creating a knowledge economy that spins on the axis of interest. Individual interest. The web inculcates a follow your bliss approach to learning that seeps, slowly, into the broader realm of information; under its influence, our notion of knowledge is slowly shedding its normative layers.
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Students and Technology: an Infographic - 80 views

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    Students today are using more tech in more places than even Popular Science imagined back in the atomic age. 98% of students own a gadget and 70% of them use a gadget in class-some for note-taking and study, some for poke wars on Facebook during lecture. And while the time spent online in a day might set off some warning bells, the good news is that a breakdown of that time shows much of it is spent learning.
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Magnifying the Universe - 4 views

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    Terrific interactive showing the size of various items from atoms to the universe. Great for a white board! Hat tip to Free Technology for Teachers - a great resource and blog.
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Magnifying the Universe - 6 views

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    A great resource for viewing the very biggest and very smallest things in the universe, ranging from galaxies to insects, nebulae and stars to molecules and atoms. http://ictmagic.wikispaces.com/Science
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Misconceptions of Science: what is a chemical bond - YouTube - 8 views

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    Because of the way bonding is taught in high school, many students believe chemical bonds isa form of matter holding them together. Students do not understand bonding is more of an attraction holding the atoms together.
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Official Blog: Learn about the atomic bombings of Hiroshima and Nagasaki on the Google ... - 1 views

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    seven new online exhibits on the Google Cultural Institute that help tell the story of the two cities and their tragic fate.
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Eyewitness - 37 views

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    Great photos here for some of your topics...
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Interactive Whiteboards - 94 views

    • nycliteracy
       
      Great list to use as a starting point for potential uses!!
  • ideo files to teach a software application
    • nycliteracy
       
      I have the membership to Atomic Learning!
  • ...2 more annotations...
  • Interactive Whiteboard Tutorials and Templates
  • Software to Download (Software to use as a class on an interactive whiteboard)
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    Interactive Whiteboards in the Classroom: Tutorials, software to download, activities, links
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Free Social Teaching and Learning Network focused solely on education - 58 views

  • Some people describe Sophia as a mash up of Wikipedia, YouTube, and Facebook — focused solely on teaching and learning. It’s where you can teach what you know and learn what you don’t. Whether you’re a high school student, college student, teacher, professor, tutor or parent, Sophia makes knowledge easier to share, easier to find, and easier to organize. And it’s free.
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    A new startup social networking site focusing on teaching and learning.
  • ...1 more comment...
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    It will be interesting to see how this site develops. I plan to use it to host some learning modules I'm working on.
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    Sophia hosts free online learning content in multimedia "packets" tied to MN K-12 standards. A blend of Facebook, Wikipedia, Atomic Learning, and Hippocampus.
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    Some people describe Sophia as a mash up of Wikipedia, YouTube, and Facebook - focused solely on teaching and learning. It's where you can teach what you know and learn what you don't. Whether you're a high school student, college student, teacher, professor, tutor or parent, Sophia makes knowledge easier to share, easier to find, and easier to organize. And it's free.
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