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jhave2

"Completely implausible"-a controversial paper exists, but so do black holes | Ars Tech... - 11 views

arstechnica.com/...r-exists-but-so-do-black-holes

astrophysics black holes

shared by jhave2 on 03 Mar 15 - No Cached
  • If correct, this applies everywhere
    • jhave2
      jhave2 on 03 Mar 15
       
      incorrect.
    • jhave2
      jhave2 on 03 Mar 15
       
      nothing applies everywhere.
  • jhave2 on 03 Mar 15
     
    "In order to conclude that black holes don't exist, she claims to have united general relativity with quantum mechanics"
Mark Johnstone

Noam Chomsky on Democracy and Education in the 21st Century and Beyond - 32 views

www.truth-out.org/...in-the-21st-century-and-beyond

shared by Mark Johnstone on 26 Nov 14 - Cached
  • Everybody was a good student. The kids were just encouraged to do what they like to do and what was best, and there was a structure; there was a program. It's not you ran around doing anything you felt like. I skipped a grade, but I didn't pay any attention and no one else paid any attention. Just that I was the smallest kid in the class, but the idea that somebody is a good student; somebody is not a good student - it just never arose. There were tests, but they just gave information about what's going on. This is something we ought to be doing better. The kids weren't ranked; there were no grades. There's a lot of cooperative work and cooperative projects and they encouraged us. You know, study, challenging questions, and it was extremely successful. I remember everything very well. I went into the academic high school and it's kind of like a black hole. I was able to get all As and a scholarship to go into college. I might well not have gone, except for what I learned on my own.
  • Mark Johnstone on 26 Nov 14
     
    "Everybody was a good student. The kids were just encouraged to do what they like to do and what was best, and there was a structure; there was a program. It's not you ran around doing anything you felt like. I skipped a grade, but I didn't pay any attention and no one else paid any attention. Just that I was the smallest kid in the class, but the idea that somebody is a good student; somebody is not a good student - it just never arose. There were tests, but they just gave information about what's going on. This is something we ought to be doing better. The kids weren't ranked; there were no grades. There's a lot of cooperative work and cooperative projects and they encouraged us. You know, study, challenging questions, and it was extremely successful. I remember everything very well. I went into the academic high school and it's kind of like a black hole. I was able to get all As and a scholarship to go into college. I might well not have gone, except for what I learned on my own."
Lisa C. Hurst

Inside the School Silicon Valley Thinks Will Save Education | WIRED - 9 views

www.wired.com/altschool

shared by Lisa C. Hurst on 05 May 15 - No Cached
  • Lisa C. Hurst on 05 May 15
     
    "AUTHOR: ISSIE LAPOWSKY. ISSIE LAPOWSKY DATE OF PUBLICATION: 05.04.15. 05.04.15 TIME OF PUBLICATION: 7:00 AM. 7:00 AM INSIDE THE SCHOOL SILICON VALLEY THINKS WILL SAVE EDUCATION Click to Open Overlay Gallery Students in the youngest class at the Fort Mason AltSchool help their teacher, Jennifer Aguilar, compile a list of what they know and what they want to know about butterflies. CHRISTIE HEMM KLOK/WIRED SO YOU'RE A parent, thinking about sending your 7-year-old to this rogue startup of a school you heard about from your friend's neighbor's sister. It's prospective parent information day, and you make the trek to San Francisco's South of Market neighborhood. You walk up to the second floor of the school, file into a glass-walled conference room overlooking a classroom, and take a seat alongside dozens of other parents who, like you, feel that public schools-with their endless bubble-filled tests, 38-kid classrooms, and antiquated approach to learning-just aren't cutting it. At the same time, you're thinking: this school is kind of weird. On one side of the glass is a cheery little scene, with two teachers leading two different middle school lessons on opposite ends of the room. But on the other side is something altogether unusual: an airy and open office with vaulted ceilings, sunlight streaming onto low-slung couches, and rows of hoodie-wearing employees typing away on their computers while munching on free snacks from the kitchen. And while you can't quite be sure, you think that might be a robot on wheels roaming about. Then there's the guy who's standing at the front of the conference room, the school's founder. Dressed in the San Francisco standard issue t-shirt and jeans, he's unlike any school administrator you've ever met. But the more he talks about how this school uses technology to enhance and individualize education, the more you start to like what he has to say. And so, if you are truly fed up with the school stat
Kent Gerber

What the Web Said Yesterday - The New Yorker - 42 views

www.newyorker.com/...cobweb

web digital preservation archives digital archives preservation history scholarly communication citations

shared by Kent Gerber on 02 Feb 15 - No Cached
  • average life of a Web page is about a hundred days
    • Kent Gerber
      Kent Gerber on 02 Feb 15
       
      Where does this statistic come from?
  • Twitter is a rare case: it has arranged to archive all of its tweets at the Library of Congress.
  • Sometimes when you try to visit a Web page what you see is an error message: “Page Not Found.” This is known as “link rot,”
  • ...14 more annotations...
  • Or maybe the page has been moved and something else is where it used to be. This is known as “content drift,”
  • For the law and for the courts, link rot and content drift, which are collectively known as “reference rot,” have been disastrous.
  • According to a 2014 study conducted at Harvard Law School, “more than 70% of the URLs within the Harvard Law Review and other journals, and 50% of the URLs within United States Supreme Court opinions, do not link to the originally cited information.”
  • one in five links provided in the notes suffers from reference rot
  • 1961, in Cambridge, J. C. R. Licklider, a scientist at the technology firm Bolt, Beranek and Newman, began a two-year study on the future of the library, funded by the Ford Foundation and aided by a team of researchers that included Marvin Minsky, at M.I.T.
  • Licklider envisioned a library in which computers would replace books and form a “network in which every element of the fund of knowledge is connected to every other element.”
  • Licklider’s two-hundred-page Ford Foundation report, “Libraries of the Future,” was published in 1965.
  • Kahle enrolled at M.I.T. in 1978. He studied computer science and engineering with Minsky.
  • Vint Cerf, who worked on ARPAnet in the seventies, and now holds the title of Chief Internet Evangelist at Google, has started talking about what he sees as a need for “digital vellum”: long-term storage. “I worry that the twenty-first century will become an informational black hole,” Cerf e-mailed me. But Kahle has been worried about this problem all along.
  • The Internet Archive is also stocked with Web pages that are chosen by librarians, specialists like Anatol Shmelev, collecting in subject areas, through a service called Archive It, at archive-it.org, which also allows individuals and institutions to build their own archives.
  • Illien told me that, when faced with Kahle’s proposal, “national libraries decided they could not rely on a third party,” even a nonprofit, “for such a fundamental heritage and preservation mission.”
  • screenshots from Web archives have held up in court, repeatedly.
  • Perma.cc has already been adopted by law reviews and state courts; it’s only a matter of time before it’s universally adopted as the standard in legal, scientific, and scholarly citation.
  • It’s not possible to go back in time and rewrite the HTTP protocol, but Van de Sompel’s work involves adding to it. He and Michael Nelson are part of the team behind Memento, a protocol that you can use on Google Chrome as a Web extension, so that you can navigate from site to site, and from time to time. He told me, “Memento allows you to say, ‘I don’t want to see this link where it points me to today; I want to see it around the time that this page was written, for example.’ ”
  • Kent Gerber on 02 Feb 15
     
    Profile of the Internet Archive and the Wayback Machine.
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