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thinkahol *

Rachel Botsman: The case for collaborative consumption | Video on TED.com - 0 views

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    At TEDxSydney, Rachel Botsman says we're "wired to share" -- and shows how websites like Zipcar and Swaptree are changing the rules of human behavior.
thinkahol *

Japan team says stem cells made paralysed monkey jump again - 0 views

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    Japanese researchers said Wednesday they had used stem cells to restore partial mobility in a small monkey that had been paralysed from the neck down by a spinal injury.
stvalentine stvalentine

Make plastic objects appear before your eyes - 0 views

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    Everyone has experienced a broken knob or a broken piece off of an appliance. You also know that while trying to get a new one you might have a long waiting period. Well there might be a prototype that is here to solve that problem. The Thing-O-Matic claims to manifest any three-dimensional plastic object in just minutes. The machine was shown first at a Las Vegas trade fair and is meant to make manufacturing more common for the average person.\n\n3,000 have already been sold at $790 a device. This model only makes plastic objects but the manufacturers say that in the future models could make metal and plastic models to make super cool gadgets. The machines make objects that are six by six by seven inches. The machine is not capable of making images but it does make boxes, tubes and get this- even action figures!
thinkahol *

The American Wikileaks Hacker | Rolling Stone Culture - 0 views

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    On July 29th, returning from a trip to Europe, Jacob Appelbaum, a lanky, unassuming 27-year-old wearing a black T-shirt with the slogan "Be the trouble you want to see in the world," was detained at customs by a posse of federal agents. In an interrogation room at Newark Liberty airport, he was grilled about his role in Wikileaks, the whistle-blower group that has exposed the government's most closely guarded intelligence reports about the war in Afghanistan. The agents photocopied his receipts, seized three of his cellphones - he owns more than a dozen - and confiscated his computer. They informed him that he was under government surveillance. They questioned him about the trove of 91,000 classified military documents that Wikileaks had released the week before, a leak that Vietnam-era activist Daniel Ellsberg called "the largest unauthorized disclosure since the Pentagon Papers." They demanded to know where Julian Assange, the founder of Wikileaks, was hiding. They pressed him on his opinions about the wars in Afghanistan and Iraq. Appelbaum refused to answer. Finally, after three hours, he was released. Sex, Drugs, and the Biggest Cybercrime of All Time Appelbaum is the only known American member of Wikileaks and the leading evangelist for the software program that helped make the leak possible. In a sense, he's a bizarro version of Mark Zuckerberg: If Facebook's ambition is to "make the world more open and connected," Appelbaum has dedicated his life to fighting for anonymity and privacy. An anarchist street kid raised by a heroin- addict father, he dropped out of high school, taught himself the intricacies of code and developed a healthy paranoia along the way. "I don't want to live in a world where everyone is watched all the time," he says. "I want to be left alone as much as possible. I don't want a data trail to tell a story that isn't true." We have transferred our most intimate and personal information - our bank accounts, e-mails, photographs, ph
thinkahol *

DNA can discern between two quantum states, research shows - 0 views

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    ScienceDaily (June 4, 2011) - Do the principles of quantum mechanics apply to biological systems? Until now, says Prof. Ron Naaman of the Institute's Chemical Physics Department (Faculty of Chemistry), both biologists and physicists have considered quantum systems and biological molecules to be like apples and oranges. But research he conducted together with scientists in Germany, which appeared recently in Science, shows that a biological molecule -- DNA -- can discern between quantum states known as spin.
thinkahol *

Scientists Disarm AIDS Virus' Attack on Immune System | Health | English - 0 views

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    Scientists say they have found a way to disarm the AIDS virus in research that could lead to a vaccine.  Researchers have discovered that if they eliminate a cholesterol membrane surrounding the virus, HIV cannot disrupt communication among disease-fighting cells and the immune system returns to normal.  
thinkahol *

5 Things That Internet Porn Reveals About Our Brains | Sex & the Brain | DISCOVER Magazine - 0 views

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    With its expansive range and unprecedented potential for anonymity, (the Internet gives voice to our deepest urges and most uninhibited thoughts. Inspired by the wealth of unfettered expression available online, neuroscientists Ogi Ogas and Sai Gaddam, who met as Ph.D. candidates at Boston University, began plumbing a few chosen search engines (including Dogpile and AOL) to create the world's largest experiment in sexuality in 2009. Quietly tapping into a billion Web searches, they explored the private activities of more than 100 million men and women around the world. The result is the first large-scale scientific examination of human sexuality in more than half a century, since biologist Alfred Kinsey famously interviewed more than 18,000 middle-class Caucasians about their sexual behavior and published the Kinsey reports in 1948 and 1953. Building on the work of Kinsey, neuroscientists have long made the case that male and female sexuality exist on different planes. But like Kinsey himself, they have been hampered by the dubious reliability of self-reports of sexual behavior and preferences as well as by small sample sizes. That is where the Internet comes in. By accessing raw data from Web searches and employing the help of Alexa-a company that measures Web traffic and publishes a list of the million most popular sites in the world-Ogas and Gaddam shine a light on hidden desire, a quirky realm of lust, fetish, and kink that, like the far side of the moon, has barely been glimpsed. Here is a sampling of their fascinating results, selected from their book, A Billion Wicked Thoughts.
thinkahol *

Mind-reading car could drive you round the bend | Technology | The Guardian - 0 views

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    Nissan collaborates with Swiss scientists to develop interface between man and machine, saying it will help road safety
thinkahol *

NASA Announces Results of Epic Space-Time Experiment - NASA Science - 0 views

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    May 4, 2011: Einstein was right again. There is a space-time vortex around Earth, and its shape precisely matches the predictions of Einstein's theory of gravity.Researchers confirmed these points at a press conference today at NASA headquarters where they announced the long-awaited results of Gravity Probe B (GP-B)."The space-time around Earth appears to be distorted just as general relativity predicts," says Stanford University physicist Francis Everitt, principal investigator of the Gravity Probe B mission.
thinkahol *

First successful transplantation of a synthetic windpipe | KurzweilAI - 0 views

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    A 36-year-old man has received the world's first synthetic trachea, made from a synthetic scaffold seeded with his own stem cells, in an operation at the Karolinska University Hospital in Stockholm, Sweden. Professor Paolo Macchiarini of Karolinska University Hospital and Karolinska Institutet led an international team, including professor Alexander Seifalian from University College London, who designed and built the nanocomposite tracheal scaffold, and Harvard Bioscience, which produced a specifically designed bioreactor used to seed the scaffold with the patient´s own stem cells. The cells were grown on the scaffold inside the bioreactor for two days before transplantation to the patient. Because the cells used to regenerate the trachea were the patient's own, there has been no rejection of the transplant and the patient is not taking immunosuppressive drugs. "The big conceptual breakthrough is that we can move from transplanting organs to manufacturing them for patients," says David Green, the president of Harvard Bioscience in Holliston, Massachusetts. Transplantations of tissue-engineered windpipes with synthetic scaffolds in combination with the patient's own stem cells as a standard procedure means that patients will not have to wait for a suitable donor organ. Patients could benefit from earlier surgery and have a greater chance of cure. This would be of especially great value for children, since the availability of donor tracheas is much lower than for adult patients.
David Mills

Making My Fleet Business More successful - 1 views

I admit managing my fleet business has been very challenging. There were even times when I wanted to give up because I could no longer figure out how to make it succeed considering that I have alr...

started by David Mills on 11 Oct 13 no follow-up yet
Todd Suomela

Guest Post: Tom Levenson on Isaac Newton as the First Cosmologist | Cosmic Variance - 0 views

  • Newton knew what he had done. He was no accidental writer. A parabola, of course, is a curve that keeps on going – and that meant that at the end of a very long and very dense book, he lifted off again from the hard ground of daily reality and said, in effect, look: All this math and all these physical ideas govern everything we can see, out to and past the point where we can’t see anymore. Most important, he did so with implacable rigor, a demonstration that, he argued, should leave no room for dissent. He wrote “The theory that corresponds exactly to so nonuniform a motion through the greatest part of the heavens, and that observes the same laws as the theory of the planets and that agrees exactly with exact astronomical observations cannot fail to be true.” (Italics added).
  • To make his ambitions absolutely clear Newton used the same phrase for the title of book three. There his readers would discover “The System of the World.” This is where the literary structure of the work really comes into play, in my view. Through book three, Newton takes his audience through a carefully constructed tour of all the places within the grasp of his new physics. It begins with an analysis of the moons of Jupiter, demonstrating that inverse square relationships govern those motions. He went on, to show how the interaction between Jupiter and Saturn would pull each out of a perfect elliptical orbit; the real world, he says here, is messier than a geometer’s dream.
Todd Suomela

SkyandTelescope.com - Homepage News - "Pioneer Anomaly" Solved? - 0 views

  • Turyshev has spent the last several years retrieving archival tracking records from obsolete storage media (those classic magnetic tapes, some of them corrupted) as well as detailed specifications of the Pioneer spacecraft itself from 40 years ago. He likens his searching and discovery to rooting around a dusty attic. "No one told me what I'd be getting into," he says. The Pioneer missions lasted so long that they outlived programming languages and data formats. (The Pioneers were launched in the days of punched cards.)
    • Todd Suomela
       
      Note the long term problems of accessing scientific information in archival formats.
Todd Suomela

The BBC Trust Report on Science | through the looking glass - 0 views

  • Aside from questions over appropriateness of expertise being a rather slippery issue, there is very little information given about the expertise of a speaker. We found lot of reliance on phrases such as ‘scientists have found’ and ‘experts say’. Personally I think we need to address this issue before we can even get on to matters of whether experts are the right ones or not. Although expertise may be implied through editing, and TV in particular can flag up institutional association and title, we rarely saw a contributor’s disciplinary background specified. Especially significant I thought, in broadcast reports about new research we found little explicit reference to whether or not a particular contributor was involved in the research being reported (online reports often refer to someone as ‘lead author’ or ‘co-author’). This lack of definition makes it hard for audiences to judge a contributor’s independence, whether they are speaking on a topic they have studied in depth or if they are simply working from anecdote.
Pump Wat

Best Quality Clean Water Pumps - 1 views

In the previous months, I was looking for quality water pumps for my house that will ensure safe drinking water for my family. I have asked several friends where I could possibly look for the best ...

water pumps

started by Pump Wat on 15 Sep 11 no follow-up yet
Todd Suomela

The Technium: The World Without Technology - 0 views

  • Although strictly speaking simple tools are a type of technology made by one person, we tend to think of technology as something much more complicated. But in fact technology is anything designed by a mind. Technology includes not only nuclear reactors and genetically modified crops, but also bows and arrows, hide tanning techniques, fire starters, and domesticated crops. Technology also includes intangible inventions such as calendars, mathematics, software, law, and writing, as these too derive from our heads. But technology also must include birds' nests and beaver dams since these too are the work of brains. All technology, both the chimp's termite fishing spear and the human's fishing spear, the beaver's dam and the human's dam, the warbler's hanging basket and the human's hanging basket, the leafcutter ant's garden and the human's garden, are all fundamentally natural. We tend to isolate human-made technology from nature, even to the point of thinking of it as anti-nature, only because it has grown to rival the impact and power of its home. But in its origins and fundamentals a tool is as natural as our life.
  • The gravity of technology holds us where we are. We accept our attachment. But to really appreciate the effects of technology – both its virtues and costs -- we need to examine the world of humans before technology. What were our lives like without inventions? For that we need to peek back into the Paleolithic era when technology was scarce and humans lived primarily surrounded by things they did not make. We can also examine the remaining contemporary hunter-gatherer tribes still living close to nature to measure what, if anything, they gain from the small amount of technology they use.
  • Then about 50,000 years ago something amazing happened. While the bodies of early humans in Africa remained unchanged, their genes and minds shifted noticeably. For the first time hominins were full of ideas and innovation. These newly vitalized modern humans, which we now call Sapiens, charged into new regions beyond their ancestral homes in eastern Africa. They fanned out from the grasslands and in a relatively brief burst exploded from a few tens of thousands in Africa to an estimated 8 million worldwide just before the dawn of agriculture 10,000 years ago.
  • ...1 more annotation...
  • It should have been clear to Neanderthal, as it is now clear to us in the 21st century, that something new and big had appeared -- a new biological and geological force. A number of scientists (Richard Klein, Ian Tattersall, William Calvin, among many others) think that the "something" that happened 50,000 years ago was the invention of language. Up until this point, humanoids were smart. They could make crude tools in a hit or miss way and handle fire – perhaps like an exceedingly smart chimp. The African hominin's growing brain size and physical stature had leveled off its increase, but evolution continued inside the brain.  "What happened 50,000 years ago," says Klein, "was a change in the operating system of humans. Perhaps a point mutation effected the way the brain is wired that allowed languages, as we understand language today: rapidly produced, articulate speech."  Instead of acquiring a larger brain, as the Neanderthal and Erectus did, Sapien gained a rewired brain.  Language altered the Neanderthal-type mind, and allowed Sapien minds for the first time to invent with purpose and deliberation. Philosopher Daniel Dennet crows in elegant language: "There is no step more uplifting, more momentous in the history of mind design, than the invention of language. When Homo sapiens became the beneficiary of this invention, the species stepped into a slingshot that has launched it far beyond all other earthly species." The creation of language was the first singularity for humans. It changed everything. Life after language was unimaginable to those on the far side before it.
Todd Suomela

Sociology and History: Shapin on the Merton Thesis « Ether Wave Propaganda - 1 views

  • Shapin observed that the link Merton drew between Puritanism and seventeenth-century English science was a matter of happenstance rather than determinism. According to Merton, science requires certain “values” and “sentiments” allowing intellectual individualism, and fostering not only an interest in the transcendent, but also secular improvement. It so happened that these values and sentiments were to be found in Puritan asceticism and sense of social obligation, which thus provided a social context in which science could develop. Definitively, this was not to say that Puritanism provided a unique source of these values and sentiments, or that science did not have other roots. It was obviously possible for science to develop in Catholic contexts as well, despite the less hospitable value system of Catholicism. The confluence of values simply seemed to promise some insight into the growth of science in a particular time and place.
  • Robert K. Merton’s “functionalist” sociology viewed “science” as a kind of Weberian ideal type — a form of thought that is identifiable by its peculiar, philosophically-defined characteristics. Merton’s sociology of science held that this thought could also be identified with social behaviors, characterized by a set of “norms”, which made the thought possible. The Merton Thesis (which slightly predates Merton’s enumeration of science’s norms) holds that the rise of science in early-modern England could be linked to the social behaviors valued by the Puritanism of that milieu. This was the subject of Merton’s PhD thesis and his 1938 book Science, Technology and Society in Seventeenth-Century England.
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    Great link. Thanks
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