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Glowing trees could light up city streets - environment - 25 November 2010 - New Scientist - 0 views

  • If work by a team of undergraduates at the University of Cambridge pans out, bioluminescent trees could one day be giving our streets this dreamlike look. The students have taken the first step on this road by developing genetic tools that allow bioluminescence traits to be easily transferred into an organism.
  • Nature is full of glow-in-the-dark critters, but their shine is feeble - far too weak to read by, for example. To boost this light, the team, who were participating in the annual International Genetically Engineered Machines competition (iGEM), modified genetic material from fireflies and the luminescent marine bacterium Vibrio fischeri to boost the production and activity of light-yielding enzymes. They then made further modifications to create genetic components or "BioBricks" that can be inserted into a genome.
  • So are glowing trees coming soon to a street near you? It's unlikely, says Alexandra Daisy Ginsberg, a designer and artist who advised the Cambridge team. "We already have light bulbs," she says. "We're not going to spend our money and time engineering a replacement for something that works very well." However, she adds that "bio-light" has a distinctive allure. "There's something much more visceral about a living light. If you have to feed the light and look after it, then it becomes more precious."
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Why dummies ONLY use statistics to make a point « - 0 views

  • look at stuff that statisticians usually dismiss as noise
  • I happen to be such a great fan of weirdonomics, I actually believe weird statistics sometimes work even better than the conventional approach – for one they provide a more timely snap shot of what’s really happening in the world than official numbers along with what we would usually term as market driven aggregates.
  • I don’t need to look the trading volume or for that matter refer to data that is generated by the EPFR, which tracks global money flows
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  • I could just as well get the same feel or texture of the prevailing sentiment by counting how many times people search for the word, “market down turn” – “recession” – “unemployment,” in Google or counting how many times those words appear in the Herald Tribune and WSJ – in either case, my point is resorting to unconventional methods to make sense of our world may actually hold out more prospects than resorting to a conventional methods.
  • we need to be mindful whenever we talk about productivity in the context of statistics bc it can skewer the picture
  • Statistics can even tell you what’s your chances of living beyond 70 years if you dont smoke and drink like me. But it can’t tell you really simple things like how much of life you lived in those years. In fact, it can tell you very little about the human condition – It can’t tell you for example why a parent believes so much in a disabled child, that to them, he’s god given; it cant tell you why people choose to fight and even die for their country - it can tell you even less about your story, love & hate, war & peace………or for that matter anything about the human condition. Man Stastistics has got no soul……. It’s machine language. And less of a heart. It’s good calculating how big manhole covers should be or how many nuts do you need to hold up a bridge under X, Y and Z conditions - other than that, its good for nothing else - that’s why whenever I see a man spouting statistics – I just know he is full of shit; doesn’t matter who he is -could well be a man on TV, a bent pastor who thinks Jesus asked him to build another shopping mall or even someone who just wants to sell you something you dont need - they’re all full of invisibe and odorless shit – and that’s the deadliest type of shit, bc you can be neck deep in it and still not know that you are in shit.”
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    Why dummies ONLY use statistics to make a point
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Skepticblog » Further Thoughts on Atheism - 0 views

  • Even before I started writing Evolution: How We and All Living Things Came to Be I knew that it would very briefly mention religion, make a mild assertion that religious questions are out of scope for science, and move on. I knew this was likely to provoke blow-back from some in the atheist community, and I knew mentioning that blow-back in my recent post “The Standard Pablum — Science and Atheism” would generate more.
  • Still, I was surprised by the quantity of the responses to the blog post (208 comments as of this moment, many of them substantial letters), and also by the fierceness of some of those responses. For example, according to one poster, “you not only pandered, you lied. And even if you weren’t lying, you lied.” (Several took up this “lying” theme.) Another, disappointed that my children’s book does not tell a general youth audience to look to “secular humanism for guidance,” declared  that “I’d have to tear out that page if I bought the book.”
  • I don’t mean to suggest that there are not points of legitimate disagreement in the mix — there are, many of them stated powerfully. There are also statements of support, vigorous debate, and (for me at least) a good deal of food for thought. I invite anyone to browse the thread, although I’d urge you to skim some of it. (The internet is after all a hyperbole-generating machine.)
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  • I lack any belief in any deity. More than that, I am persuaded (by philosophical argument, not scientific evidence) to a high degree of confidence that gods and an afterlife do not exist.
  • do try to distinguish between my work as a science writer and skeptical activist on the one hand, and my personal opinions about religion and humanism on the other.
  • Atheism is a practical handicap for science outreach. I’m not naive about this, but I’m not cynical either. I’m a writer. I’m in the business of communicating ideas about science, not throwing up roadblocks and distractions. It’s good communication to keep things as clear, focused, and on-topic as possible.
  • Atheism is divisive for the skeptical community, and it distracts us from our core mandate. I was blunt about this in my 2007 essay “Where Do We Go From Here?”, writing, I’m both an atheist and a secular humanist, but it is clear to me that atheism is an albatross for the skeptical movement. It divides us, it distracts us, and it marginalizes us. Frankly, we can’t afford that. We need all the help we can get.
  • In What Do I Do Next? I urged skeptics to remember that there are many other skeptics who do hold or identify with some religion. Indeed, the modern skeptical movement is built partly on the work of people of faith (including giants like Harry Houdini and Martin Gardner). You don’t, after all, have to be against god to be against fraud.
  • In my Skeptical Inquirer article “The Paradoxical Future of Skepticism” I argued that skeptics must set aside the conceit that our goal is a cultural revolution or the dawning of a new Enlightenment. … When we focus on that distant, receding, and perhaps illusory goal, we fail to see the practical good we can do, the harm-reduction opportunities right in front of us. The long view subverts our understanding of the scale and hazard of paranormal beliefs, leading to sentiments that the paranormal is “trivial” or “played out.” By contrast, the immediate, local, human view — the view that asks “Will this help someone?” — sees obvious opportunities for every local group and grassroots skeptic to make a meaningful difference.
  • This practical argument, that skepticism can get more done if we keep our mandate tight and avoid alienating our best friends, seems to me an important one. Even so, it is not my main reason for arguing that atheism and skepticism are different projects.
  • In my opinion, Metaphysics and ethics are out of scope for science — and therefore out of scope for skepticism. This is by far the most important reason I set aside my own atheism when I put on my “skeptic” hat. It’s not that I don’t think atheism is rational — I do. That’s why I’m an atheist. But I know that I cannot claim scientific authority for a conclusion that science cannot test, confirm, or disprove. And so, I restrict myself as much as possible, in my role as a skeptic and science writer, to investigable claims. I’ve become a cheerleader for this “testable claims” criterion (and I’ll discuss it further in future posts) but it’s not a new or radical constriction of the scope of skepticism. It’s the traditional position occupied by skeptical organizations for decades.
  • In much of the commentary, I see an assumption that I must not really believe that testable paranormal and pseudoscientific claims (“I can read minds”) are different in kind from the untestable claims we often find at the core of religion (“god exists”). I acknowledge that many smart people disagree on this point, but I assure you that this is indeed what I think.
  • I’d like to call out one blogger’s response to my “Standard Pablum” post. The author certainly disagrees with me (we’ve discussed the topic often on Twitter), but I thank him for describing my position fairly: From what I’ve read of Daniel’s writings before, this seems to be a very consistent position that he has always maintained, not a new one he adopted for the book release. It appears to me that when Daniel says that science has nothing to say about religion, he really means it. I have nothing to say to that. It also appears to me that when he says skepticism is a “different project than atheism” he also means it.
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    FURTHER THOUGHTS ON ATHEISM by DANIEL LOXTON, Mar 05 2010
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The fog of war: The fog of war | The Economist - 0 views

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    The fog of war Apr 5th 2010, 22:54 by R.M. | NEW YORK
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What humans know that Watson doesn't - CNN.com - 0 views

  • One of the most frustrating experiences produced by the winter from hell is dealing with the airlines' automated answer systems. Your flight has just been canceled and every second counts in getting an elusive seat. Yet you are stuck in an automated menu spelling out the name of your destination city.
  • Even more frustrating is knowing that you will never get to ask the question you really want to ask, as it isn't an option: "If I drive to Newark and board my Flight to Tel Aviv there will you cancel my whole trip, as I haven't started from my ticketed airport of origin, Ithaca?"
  • A human would immediately understand the question and give you an answer. That's why knowledgeable travelers rush to the nearest airport when they experience a cancellation, so they have a chance to talk to a human agent who can override the computer, rather than rebook by phone (more likely wait on hold and listen to messages about how wonderful a destination Tel Aviv is) or talk to a computer.
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  • There is no doubt the IBM supercomputer Watson gave an impressive performance on "Jeopardy!" this week. But I was worried by the computer's biggest fluff Tuesday night. In answer to the question about naming a U.S. city whose first airport is named after a World War II hero and its second after a World War II battle, it gave Toronto, Ontario. Not even close!
  • Both the humans on the program knew the correct answer: Chicago. Even a famously geographically challenged person like me
  • Why did I know it? Because I have spent enough time stranded at O'Hare to have visited the monument to Butch O'Hare in the terminal. Watson, who has not, came up with the wrong answer. This reveals precisely what Watson lacks -- embodiment.
  • Watson has never traveled anywhere. Humans travel, so we know all sorts of stuff about travel and airports that a computer doesn't know. It is the informal, tacit, embodied knowledge that is the hardest for computers to grasp, but it is often such knowledge that is most crucial to our lives.
  • Providing unique answers to questions limited to around 25 words is not the same as dealing with real problems of an emotionally distraught passenger in an open system where there may not be a unique answer.
  • Watson beating the pants out of us on "Jeopardy!" is fun -- rather like seeing a tractor beat a human tug-of-war team. Machines have always been better than humans at some tasks.
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Climate change and extreme flooding linked by new evidence | George Monbiot | Environme... - 0 views

  • Two studies suggest for the first time a clear link between global warming and extreme precipitation
  • There's a sound rule for reporting weather events that may be related to climate change. You can't say that a particular heatwave or a particular downpour – or even a particular freeze – was definitely caused by human emissions of greenhouse gases. But you can say whether these events are consistent with predictions, or that their likelihood rises or falls in a warming world.
  • Weather is a complex system. Long-running trends, natural fluctuations and random patterns are fed into the global weather machine, and it spews out a series of events. All these events will be influenced to some degree by global temperatures, but it's impossible to say with certainty that any of them would not have happened in the absence of man-made global warming.
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  • over time, as the data build up, we begin to see trends which suggest that rising temperatures are making a particular kind of weather more likely to occur. One such trend has now become clearer. Two new papers, published by Nature, should make us sit up, as they suggest for the first time a clear link between global warming and extreme precipitation (precipitation means water falling out of the sky in any form: rain, hail or snow).
  • We still can't say that any given weather event is definitely caused by man-made global warming. But we can say, with an even higher degree of confidence than before, that climate change makes extreme events more likely to happen.
  • One paper, by Seung-Ki Min and others, shows that rising concentrations of greenhouse gases in the atmosphere have caused an intensification of heavy rainfall events over some two-thirds of the weather stations on land in the northern hemisphere. The climate models appear to have underestimated the contribution of global warming on extreme rainfall: it's worse than we thought it would be.
  • The other paper, by Pardeep Pall and others, shows that man-made global warming is very likely to have increased the probability of severe flooding in England and Wales, and could well have been behind the extreme events in 2000. The researchers ran thousands of simulations of the weather in autumn 2000 (using idle time on computers made available by a network of volunteers) with and without the temperature rises caused by man-made global warming. They found that, in nine out of 10 cases, man-made greenhouse gases increased the risks of flooding. This is probably as solid a signal as simulations can produce, and it gives us a clear warning that more global heating is likely to cause more floods here.
  • As Richard Allan points out, also in Nature, the warmer the atmosphere is, the more water vapour it can carry. There's even a formula which quantifies this: 6-7% more moisture in the air for every degree of warming near the Earth's surface. But both models and observations also show changes in the distribution of rainfall, with moisture concentrating in some parts of the world and fleeing from others: climate change is likely to produce both more floods and more droughts.
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Roger Pielke Jr.'s Blog: Full Comments to the Guardian - 0 views

  • The Guardian has an good article today on a threatened libel suit under UK law against Gavin Schmidt, a NASA researcher who blogs at Real Climate, by the publishers of the journal Energy and Environment. 
  • Here are my full comments to the reporter for the Guardian, who was following up on Gavin's reference to comments I had made a while back about my experiences with E&E:
  • In 2000, we published a really excellent paper (in my opinion) in E&E in that has stood the test of time: Pielke, Jr., R. A., R. Klein, and D. Sarewitz (2000), Turning the big knob: An evaluation of the use of energy policy to modulate future climate impacts. Energy and Environment 2:255-276. http://sciencepolicy.colorado.edu/admin/publication_files/resource-250-2000.07.pdf You'll see that paper was in only the second year of the journal, and we were obviously invited to submit a year or so before that. It was our expectation at the time that the journal would soon be ISI listed and it would become like any other academic journal. So why not publish in E&E?
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  • That paper, like a lot of research, required a lot of effort.  So it was very disappointing to E&E in the years that followed identify itself as an outlet for alternative perspectives on the climate issue. It has published a number of low-quality papers and a high number of opinion pieces, and as far as I know it never did get ISI listed.
  • Boehmer-Christiansen's quote about following her political agenda in running the journal is one that I also have cited on numerous occasions as an example of the pathological politicization of science. In this case the editor's political agenda has clearly undermined the legitimacy of the outlet.  So if I had a time machine I'd go back and submit our paper elsewhere!
  • A consequence of the politicization of E&E is that any paper published there is subsequently ignored by the broader scientific community. In some cases perhaps that is justified, but I would argue that it provided a convenient excuse to ignore our paper on that basis alone, and not on the merits of its analysis. So the politicization of E&E enables a like response from its critics, which many have taken full advantage of. For outside observers of climate science this action and response together give the impression that scientific studies can be evaluated simply according to non-scientific criteria, which ironically undermines all of science, not just E&E.  The politicization of the peer review process is problematic regardless of who is doing the politicization because it more readily allows for political judgments to substitute for judgments of the scientific merit of specific arguments.  An irony here of course is that the East Anglia emails revealed a desire to (and some would say success in) politicize the peer review process, which I discuss in The Climate Fix.
  • For my part, in 2007 I published a follow on paper to the 2000 E&E paper that applied and extended a similar methodology.  This paper passed peer review in the Philosophical Transactions of the Royal Society: Pielke, Jr., R. A. (2007), Future economic damage from tropical cyclones: sensitivities to societal and climate changes. Philosophical Transactions of the Royal Society A 365 (1860) 2717-2729 http://sciencepolicy.colorado.edu/admin/publication_files/resource-2517-2007.14.pdf
  • Over the long run I am confident that good ideas will win out over bad ideas, but without care to the legitimacy of our science institutions -- including journals and peer review -- that long run will be a little longer.
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North Korea's cinema of dreams - 101 East - Al Jazeera English - 0 views

  • North Korean leader Kim Jong-Il's love of film is well-documented, but few outsiders know that he is revered as a genius of cinema by his own people.

    Now, this groundbreaking film opens a window inside the world's most secretive country and an elite academy, where young actors are hand-picked to serve a massive propaganda machine.

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Real Climate faces libel suit | Environment | guardian.co.uk - 0 views

  • Gavin Schmidt, a climate modeller and Real Climate member based at Nasa's Goddard Institute for Space Studies in New York, has claimed that Energy & Environment (E&E) has "effectively dispensed with substantive peer review for any papers that follow the editor's political line." The journal denies the claim, and, according to Schmidt, has threatened to take further action unless he retracts it.
  • Every paper that is submitted to the journal is vetted by a number of experts, she said. But she did not deny that she allows her political agenda to influence which papers are published in the journal. "I'm not ashamed to say that I deliberately encourage the publication of papers that are sceptical of climate change," said Boehmer-Christiansen, who does not believe in man-made climate change.
  • Simon Singh, a science writer who last year won a major libel battle with the British Chiropractic Association (BCA), said: "A libel threat is potentially catastrophic. It can lead to a journalist going bankrupt or a blogger losing his house. A lot of journalists and scientists will understandably react to the threat of libel by retracting their articles, even if they are confident they are correct. So I'm delighted that Gavin Schmidt is going to stand up for what he has written." During the case with the BCA, Singh also received a libel threat in response to an article he had written about climate change, but Singh stood by what he had written and threat was not carried through.
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  • Schmidt has refused to retract his comments and maintains that the majority of papers published in the journal are "dross"."I would personally not credit any article that was published there with any useful contribution to the science," he told the Guardian. "Saying a paper was published in E&E has become akin to immediately discrediting it." He also describes the journal as a "backwater" of poorly presented and incoherent contributions that "anyone who has done any science can see are fundamentally flawed from the get-go."
  • Schmidt points to an E&E paper that claimed that the Sun is made of iron. "The editor sent it out for review, where it got trashed (as it should have been), and [Boehmer-Christiansen] published it anyway," he says.
  • The journal also published a much-maligned analysis suggesting that levels of the greenhouse gas carbon dioxide could go up and down by 100 parts per million in a year or two, prompting marine biologist Ralph Keeling at the Scripps Institute of Oceanography in La Jolla, California to write a response to the journal, in which he asked: "Is it really the intent of E&E to provide a forum for laundering pseudo-science?"
  • Schmidt and Keeling are not alone in their criticisms. Roger Pielke Jr, a professor of environmental studies at the University of Colorado, said he regrets publishing a paper in the journal in 2000 – one year after it was established and before he had time to realise that it was about to become a fringe platform for climate sceptics. "[E&E] has published a number of low-quality papers, and the editor's political agenda has clearly undermined the legitimacy of the outlet," Pielke says. "If I had a time machine I'd go back and submit our paper elsewhere."
  • Any paper published in E&E is now ignored by the broader scientific community, according to Pielke. "In some cases perhaps that is justified, but I would argue that it provided a convenient excuse to ignore our paper on that basis alone, and not on the merits of its analysis," he said. In the long run, Pielke is confident that good ideas will win out over bad ideas. "But without care to the legitimacy of our science institutions – including journals and peer review – that long run will be a little longer," he says.
  • she has no intention of changing the way she runs E&E – which is not listed on the ISI Journal Master list, an official list of academic journals – in response to his latest criticisms.
  • Schmidt is unsurprised. "You would need a new editor, new board of advisors, and a scrupulous adherence to real peer review, perhaps ... using an open review process," he said. "But this is very unlikely to happen since their entire raison d'être is political, not scientific."
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Let There Be More Efficient Light - NYTimes.com - 0 views

  • LAST week Michele Bachmann, a Republican representative from Minnesota, introduced a bill to roll back efficiency standards for light bulbs, which include a phasing out of incandescent bulbs in favor of more energy-efficient bulbs. The “government has no business telling an individual what kind of light bulb to buy,” she declared.
  • But this opposition ignores another, more important bit of American history: the critical role that government-mandated standards have played in scientific and industrial innovation.
  • inventions alone weren’t enough to guarantee progress. Indeed, at the time the lack of standards for everything from weights and measures to electricity — even the gallon, for example, had eight definitions — threatened to overwhelm industry and consumers with a confusing array of incompatible choices.
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  • This wasn’t the case everywhere. Germany’s standards agency, established in 1887, was busy setting rules for everything from the content of dyes to the process for making porcelain; other European countries soon followed suit. Higher-quality products, in turn, helped the growth in Germany’s trade exceed that of the United States in the 1890s. America finally got its act together in 1894, when Congress standardized the meaning of what are today common scientific measures, including the ohm, the volt, the watt and the henry, in line with international metrics. And, in 1901, the United States became the last major economic power to establish an agency to set technological standards. The result was a boom in product innovation in all aspects of life during the 20th century. Today we can go to our hardware store and choose from hundreds of light bulbs that all conform to government-mandated quality and performance standards.
  • Technological standards not only promote innovation — they also can help protect one country’s industries from falling behind those of other countries. Today China, India and other rapidly growing nations are adopting standards that speed the deployment of new technologies. Without similar requirements to manufacture more technologically advanced products, American companies risk seeing the overseas markets for their products shrink while innovative goods from other countries flood the domestic market. To prevent that from happening, America needs not only to continue developing standards, but also to devise a strategy to apply them consistently and quickly.
  • The best approach would be to borrow from Japan, whose Top Runner program sets energy-efficiency standards by identifying technological leaders in a particular industry — say, washing machines — and mandating that the rest of the industry keep up. As technologies improve, the standards change as well, enabling a virtuous cycle of improvement. At the same time, the government should work with businesses to devise multidimensional standards, so that consumers don’t balk at products because they sacrifice, say, brightness and cost for energy efficiency.
  • This is not to say that innovation doesn’t bring disruption, and American policymakers can’t ignore the jobs that are lost when government standards sweep older technologies into the dustbin of history. An effective way forward on light bulbs, then, would be to apply standards only to those manufacturers that produce or import in large volume. Meanwhile, smaller, legacy light-bulb producers could remain, cushioning the blow to workers and meeting consumer demand.
  • Technologies and the standards that guide their deployment have revolutionized American society. They’ve been so successful, in fact, that the role of government has become invisible — so much so that even members of Congress should be excused for believing the government has no business mandating your choice of light bulbs.
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The Devil's Kitchen: Scientists hoist by their own petard - 0 views

  • the vast majority of the world's scientists back urgent action on carbon emissions: energy must be made much more expensive. Oh, wait, we didn't mean for us!World-class research into future sources of green energy is under threat in Britain from an environmental tax designed to boost energy efficiency and drive down carbon emissions, scientists claim.Some facilities must find hundreds of thousands of pounds to settle green tax bills, putting jobs and research at risk.
  • Among the worst hit is the Culham Centre for Fusion Energy in Oxfordshire, a facility for research into almost limitless carbon-free energy. The lab faces an estimated £400,000 payment next year, raising the spectre of job losses and operational cuts. "Considering our research is aimed at producing zero-carbon energy, it seems ironic and perverse to clobber us with an extra bill," a senior scientist at the lab said. "We have to use electricity to run the machine and there is no way of getting around that."
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Analysis: Hold the panic on cell phones and cancer | Phones | iOS Central | Macworld - 0 views

  • Today’s cell phones are, essentially, extremely sophisticated radios and, as such, emit electromagnetic waves. Much like the vast majority of radiation that surrounds us—from visible light to AM and FM radio waves—electromagnetic waves do not possess enough energy to interact directly with the tissues in our bodies in a way that can cause direct damage. “The radiation that cell phones emit is nowhere near the kind of radiation that x-ray machines, for example, emit,” says Perras. “X-rays […] have much, much shorter wavelengths. Consequently, [they] carry much more energy and thus have much more penetrating power, which is required to be able to image the interior of the human body.”
  • X-rays and other “hard” waves are called ionizing radiation because they can interact with the human body in a way that leads to the creation of chemical compounds called free radicals that can, in turn, be responsible for mutations and the incidence of cancer.
  • The focus of much of the currently-ongoing scientific research, then, is on whether the radiation emitted by cell phones is focused enough to be absorbed into the body and cause heating, which could, in the long run, damage human tissue and eventually lead to cancer.
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  • The issue is particularly important because most users still hold their phones close to the head; since the brain is particularly sensitive to external stimuli, even a small amount of heat could lead to medical trouble in the long term.
  • What makes it challenging to determine if a link between cell phones and cancer actually exists are the many variables involved. “The incidence of brain tumors is quite small, making it more difficult to study in large numbers,” says Dr. Eric Olyejar, a Radiation Oncologist from Ironwood Cancer and Research Centers, based in Chandler, Ariz. That means “quantifying the lifetime dose each patient received is extremely difficult.”
  • To make things more difficult, cancer often develops as a result of many different factors. “Family history, exposure to chemicals or radiation, growth defects, the amount of radiation that is actually coming from the phone, amount of time used, proximity to the brain, skull thickness, and wave frequency are only a few of the many variables,” Olyejar says.
  • cell phones have become so ubiquitous that it’s hard to compare the health of users and non-users.
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    Do cell phones cause cancer? Nobody really knows for sure, but scientists are determined to keep an eye on the ever-evolving evidence that continues to accumulate on the subject. That's the gist of a report recently released by the World Health Organization's International Agency for Research on Cancer (IARC), the United Nations body responsible for oncological studies. In the report, IARC scientists have classified cell phone usage as a possible cause of cancer, meaning that, while the data currently available is still inconclusive, the subject deserves further research before a call can be made one way or another.
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Kevin Slavin: How algorithms shape our world | Video on TED.com - 0 views

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    Kevin Slavin argues that we're living in a world designed for -- and increasingly controlled by -- algorithms. In this riveting talk from TEDGlobal, he shows how these complex computer programs determine: espionage tactics, stock prices, movie scripts, and architecture. And he warns that we are writing code we can't understand, with implications we can't control.
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Roger Pielke Jr.'s Blog: Faith-Based Education and a Return to Shop Class - 0 views

  • In the United States, nearly a half century of research, application of new technologies and development of new methods and policies has failed to translate into improved reading abilities for the nation’s children1.
  • the reasons why progress has been so uneven point to three simple rules for anticipating when more research and development (R&D) could help to yield rapid social progress. In a world of limited resources, the trick is distinguishing problems amenable to technological fixes from those that are not. Our rules provide guidance\ in making this distinction . . .
  • unlike vaccines, the textbooks and software used in education do not embody the essence of what needs to be done. That is, they don’t provide the basic ‘go’ of teaching and learning. That depends on the skills of teachers and on the attributes of classrooms and students. Most importantly, the effectiveness of a vaccine is largely independent of who gives or receives it, and of the setting in which it is given.
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  • The three rules for a technological fix proposed by Sarewitz and Nelson are: I. The technology must largely embody the cause–effect relationship connecting problem to solution. II. The effects of the technological fix must be assessable using relatively unambiguous or uncontroversial criteria. III. Research and development is most likely to contribute decisively to solving a social problem when it focuses on improving a standardized technical core that already exists.
  • technology in the classroom fails with respect to each of the three criteria: (a) technology is not a causal factor in learning in the sense that more technology means more learning, (b) assessment of educational outcome sis itself difficult and contested, much less disentangling various causal factors, and (c) the lack of evidence that technology leads to improved educational outcomes means that there is no such standardized technological core.
  • This conundrum calls into question one of the most significant contemporary educational movements. Advocates for giving schools a major technological upgrade — which include powerful educators, Silicon Valley titans and White House appointees — say digital devices let students learn at their own pace, teach skills needed in a modern economy and hold the attention of a generation weaned on gadgets. Some backers of this idea say standardized tests, the most widely used measure of student performance, don’t capture the breadth of skills that computers can help develop. But they also concede that for now there is no better way to gauge the educational value of expensive technology investments.
  • absent clear proof, schools are being motivated by a blind faith in technology and an overemphasis on digital skills — like using PowerPoint and multimedia tools — at the expense of math, reading and writing fundamentals. They say the technology advocates have it backward when they press to upgrade first and ask questions later.
  • [D]emand for educated labour is being reconfigured by technology, in much the same way that the demand for agricultural labour was reconfigured in the 19th century and that for factory labour in the 20th. Computers can not only perform repetitive mental tasks much faster than human beings. They can also empower amateurs to do what professionals once did: why hire a flesh-and-blood accountant to complete your tax return when Turbotax (a software package) will do the job at a fraction of the cost? And the variety of jobs that computers can do is multiplying as programmers teach them to deal with tone and linguistic ambiguity. Several economists, including Paul Krugman, have begun to argue that post-industrial societies will be characterised not by a relentless rise in demand for the educated but by a great “hollowing out”, as mid-level jobs are destroyed by smart machines and high-level job growth slows. David Autor, of the Massachusetts Institute of Technology (MIT), points out that the main effect of automation in the computer era is not that it destroys blue-collar jobs but that it destroys any job that can be reduced to a routine. Alan Blinder, of Princeton University, argues that the jobs graduates have traditionally performed are if anything more “offshorable” than low-wage ones. A plumber or lorry-driver’s job cannot be outsourced to India.
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    In 2008 Dick Nelson and Dan Sarewitz had a commentary in Nature (here in PDF) that eloquently summarized why it is that we should not expect technology in the classroom to reault in better educational outcomes as they suggest we should in the case of a tehcnology like vaccines
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Do Androids Dream of Origami Unicorns? | Institute For The Future - 0 views

  • rep.licants is the work that I did for my master thesis. During my studies, I developed an interest about the way most of people are using social networks but also the differences in between someone real identity and his digital one.
  • Back to rep.licants - when I began to think about a project for my master thesis, I really wanted to work on those two thematics (mix in between digital and real identity and a kind of study about how users are using social networks). With the aim to raise discussions about those two thematics.
  • the negative responses are mainly from people who were thinking rep.licants is a real and serious webservice which is giving for free performant bots who are able to almost perfectly replicate the user. And if they are expecting that I understand their disappointment because my bot is far from being performant ! Some were negatives because people were thinking it is kind of scary asking a bot to manage your own digital identity so they rejected the idea.
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  • For the positive responses it's mainly people who understood that rep.licants is not about giving performant bots but is more like an experiment (and also a kind of critics about how most of the users are using social networks) where users can mix themselves with a bot and see what is happening. Because even if my bots are crap they can be, sometimes, surprising.
  • But I was kind of surprised that so many people would really expect to have a real bot to manage their social networks account. Twitter never responded and Facebook responded by banning, three times already, my Facebook applications which is managing and running all the Facebook's bots.
  • some people use the bot: a. Just as an experiment, they want to see what the bot can do and if the bot can really improve their virtual social influences. Or users experimenting how long they could keep a bot on their account without their friends noticing it's runt by a bot. b. I saw few time inside my database which stores informations about the users that some of them have a twitter name like "renthouseUSA", so I guess they are using rep.licants for getting a presence on social networks without managing anything and as a commercial goal. c. This is a feedback that I had a lot of time and it is the reason why I am using rep.licants on my own twitter account: If you are precise with the keywords that you give to the bot, it will sometimes find very interesting content related to your interest. My bot made me discover a lot of interesting things, by posting them on Twitter, that I wouldn't never find without him. New informations are coming so fast and in so big quantities that it becomes really difficult to deal with that. For example just on Twitter I follow 80 persons (which is not a lot) all of those persons that I follow is because I know that they might tweet interesting stuffs related to my interests. But I have maybe 10 of those 80 followers who are tweeting quiet a lot (maybe 1-2 tweet per hour) and as I check my twitter feed only one time per day I sometimes loose more than one hour to find interesting tweets in the amount of tweets that my 80 persons posted. And this is only for Twitter ! I really think that we need more and more personal robots for filtering information for us. And this is a very positive point I found about having a bot that I could never imagine when I was beginning my project.
  • One surprising bugs was when the Twitter's bots began to speak to themselves. It's maybe boring for some users to see their own account speak to itself one time per day but when I discovered the bug I found it very funny. So I decided to keep that bug !
  • this video of a chatbot having a conversation with itself went viral – perhaps in part because the conversation immediately turned towards more existentialist questions and responses.  The conversation was recorded at the Cornell Creative Machines Lab, where the faculty are researching how to make helper bots. 

     


  • The questions that rep.licants poses are deep human and social ones – laced with uncertainties about the kinds of interactions we count as normal and the responsibilities we owe to ourselves and each other.  Seeing these bots carry out conversations with themselves and with human counterparts (much less other non-human counterparts) allows us to take tradition social and technological research into a different territory – asking not only what it means to be human – but also what it means to be non-human.
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Rationally Speaking: Ray Kurzweil and the Singularity: visionary genius or pseudoscient... - 0 views

  • I will focus on a single detailed essay he wrote entitled “Superintelligence and Singularity,” which was originally published as chapter 1 of his The Singularity is Near (Viking 2005), and has been reprinted in an otherwise insightful collection edited by Susan Schneider, Science Fiction and Philosophy.
  • Kurzweil begins by telling us that he gradually became aware of the coming Singularity, in a process that, somewhat peculiarly, he describes as a “progressive awakening” — a phrase with decidedly religious overtones. He defines the Singularity as “a future period during which the pace of technological change will be so rapid, its impact so deep, that human life will be irreversibly transformed.” Well, by that definition, we have been through several “singularities” already, as technology has often rapidly and irreversibly transformed our lives.
  • The major piece of evidence for Singularitarianism is what “I [Kurzweil] have called the law of accelerating returns (the inherent acceleration of the rate of evolution, with technological evolution as a continuation of biological evolution).”
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  • the first obvious serious objection is that technological “evolution” is in no logical way a continuation of biological evolution — the word “evolution” here being applied with completely different meanings. And besides, there is no scientifically sensible way in which biological evolution has been accelerating over the several billion years of its operation on our planet. So much for scientific accuracy and logical consistency.
  • here is a bit that will give you an idea of why some people think of Singularitarianism as a secular religion: “The Singularity will allow us to transcend [the] limitations of our biological bodies and brains. We will gain power over our fates. Our mortality will be in our own hands. We will be able to live as long as we want.”
  • Fig. 2 of that essay shows a progression through (again, entirely arbitrary) six “epochs,” with the next one (#5) occurring when there will be a merger between technological and human intelligence (somehow, a good thing), and the last one (#6) labeled as nothing less than “the universe wakes up” — a nonsensical outcome further described as “patterns of matter and energy in the universe becom[ing] saturated with intelligence processes and knowledge.” This isn’t just science fiction, it is bad science fiction.
  • “a serious assessment of the history of technology reveals that technological change is exponential. Exponential growth is a feature of any evolutionary process.” First, it is highly questionable that one can even measure “technological change” on a coherent uniform scale. Yes, we can plot the rate of, say, increase in microprocessor speed, but that is but one aspect of “technological change.” As for the idea that any evolutionary process features exponential growth, I don’t know where Kurzweil got it, but it is simply wrong, for one thing because biological evolution does not have any such feature — as any student of Biology 101 ought to know.
  • Kurzweil’s ignorance of evolution is manifested again a bit later, when he claims — without argument, as usual — that “Evolution is a process of creating patterns of increasing order. ... It’s the evolution of patterns that constitutes the ultimate story of the world. ... Each stage or epoch uses the information-processing methods of the previous epoch to create the next.” I swear, I was fully expecting a scholarly reference to Deepak Chopra at the end of that sentence. Again, “evolution” is a highly heterogeneous term that picks completely different concepts, such as cosmic “evolution” (actually just change over time), biological evolution (which does have to do with the creation of order, but not in Kurzweil’s blatantly teleological sense), and technological “evolution” (which is certainly yet another type of beast altogether, since it requires intelligent design). And what on earth does it mean that each epoch uses the “methods” of the previous one to “create” the next one?
  • As we have seen, the whole idea is that human beings will merge with machines during the ongoing process of ever accelerating evolution, an event that will eventually lead to the universe awakening to itself, or something like that. Now here is the crucial question: how come this has not happened already?
  • To appreciate the power of this argument you may want to refresh your memory about the Fermi Paradox, a serious (though in that case, not a knockdown) argument against the possibility of extraterrestrial intelligent life. The story goes that physicist Enrico Fermi (the inventor of the first nuclear reactor) was having lunch with some colleagues, back in 1950. His companions were waxing poetic about the possibility, indeed the high likelihood, that the galaxy is teeming with intelligent life forms. To which Fermi asked something along the lines of: “Well, where are they, then?”
  • The idea is that even under very pessimistic (i.e., very un-Kurzweil like) expectations about how quickly an intelligent civilization would spread across the galaxy (without even violating the speed of light limit!), and given the mind boggling length of time the galaxy has already existed, it becomes difficult (though, again, not impossible) to explain why we haven’t seen the darn aliens yet.
  • Now, translate that to Kurzweil’s much more optimistic predictions about the Singularity (which allegedly will occur around 2045, conveniently just a bit after Kurzweil’s expected demise, given that he is 63 at the time of this writing). Considering that there is no particular reason to think that planet earth, or the human species, has to be the one destined to trigger the big event, why is it that the universe hasn’t already “awakened” as a result of a Singularity occurring somewhere else at some other time?
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