SpeEdChange: Social Change and the American School
Tags: education, school, social_change, united_states, government on 2009-07-01 and saved by 3 people -All Annotations (2) -About
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I've seen many tweets, for example, spreading the "gospel" that only education can solve poverty. I find this odd because if there is one overwhelming predictor of school failure in the US, it is poverty.
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- what are we doing today?
- Consider what might change if those who spend a fortune daily promoting charter schools and Teach for America were to instead fund - Andrew Carnegie-style - free broadband access across America?
- Or if our governments poured money into finally constructing schools NOT based in Henry Barnard's 1848 advice?
- Or if teacher training institutions became completely free? And were completely re-thought?
- Or if graduates of our public schools were guaranteed free post-secondary training?
- Or if every school was paired with a local health system to help students get and stay healthy?
- Or if U.S. Labor laws were changed to require "Family Living Wages" and paid time off so parents might spend time with their children.
- Or if we finally threw out that "Committee of Ten" curriculum and adopted a project and interest based approach to education?
Young Children's Exposure To Audible Television Has Implications For Language Acquisition And Brain Development
Tags: tv, language, development, parenting on 2009-06-30 -All Annotations (1) -About
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"Adults typically utter approximately 941 words per hour. Our study found that adult words are almost completely eliminated when television is audible to the child," added Christakis. "These results may explain the association between infant television exposure and delayed language development." Christakis further adds that this may also explain attentional and cognitive delays, since it has been posed that language development is a critical component of brain development in early childhood.
AP Newsbreak: SC gov 'crossed lines' with women - Yahoo! News
this is really good stuff! I wonder what this guy reads.
Tags: politics, emotion, marriage, i'll_just_say_i_was_hiking_the_appalachian_trail, really_bad_lie on 2009-06-30 -All Annotations (9) -About
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- politics is the crowded table in the cafeteria: "I just think he needs to shut up," said Democratic Rep. Gilda Cobb-Hunter, a social worker and one of the few lawmakers not calling for his resignation. "I don't want any more details of his love life. He needs to stop being public with his angst and talk to a counselor." http://www.msnbc.msn.com/id/31694081/ns/politics-more_politics/post by taryn930 on 2009-07-02
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For the next seven-plus years, Sanford said, the two exchanged messages, sometimes sporadically.
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e-mails they'd exchanged for years reflected their anguish over what they had done.
"Now I am frightened," he told the AP, describing his state of mind at the time. "It was before safe. But now it's not safe. We gotta put the genie back in the bottle."
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a total of five encounters over their eight-year relationship
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"There was some kind of connection from the very beginning," he told The Associated Press
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what was to be a farewell meeting in New York chaperoned by a spiritual adviser soon after his wife found out about the affair.
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Sanford said Chapur is his soul mate
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"This was a whole lot more than a simple affair, this was a love story," Sanford said. "A forbidden one, a tragic one, but a love story at the end of the day."
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"never crossed the ultimate line"
Enough of the half-measures
as with education: nothing we're doing, currently, is going to stop this [good news-y links in this]
Tags: climate_crisis on 2009-06-30 and saved by 3 people -All Annotations (2) -About
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The planet and more importantly, all life on it has had 120m years to adapt to the 3 degree cooling which has occurred since then and we have adapted well. However, a rise of 3 degrees in less than 100 years would have catastrophic consequences for most plant and animal species on the planet who are designed to adapt to changes in geological timeframes, not generational ones.
The Technium: Why Technology Can't Fulfill
Leon spoke of the same equation: fewer distractions, more satisfaction. The ever-ready embrace of his community was palpable. Imagine it: neighbors would pay your medical bill if needed, or build your house in a few weeks without pay, and more importantly allow you to do the same for them. Minimal technology, unburdened by the cultural innovations such as insurance or credit cards, forces a daily reliance on neighbors and friends.
Tags: religion, technology, consumer, education, adolescent, family, social_network, human_body, thoreau, agriculture, urban on 2009-06-27 and saved by 6 people -All Annotations (14) -About
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The Amish practice a remarkable tradition called "rumspringer" wherein their teenagers are allowed to ditch their home-made uniforms — suspenders and hats for boys, long dresses and bonnets for girls — and don baggy pants and short skits to buy a car, listen to music, and party for a few years before they decide to forever give up these modern amenities and join the Old Order church. This intimate, real exposure to the technological universe means that they are fully cognizant of what that world has to offer, and what exactly they are denying themselves. Leon is on a sort of permanent "rumspringer" although he doesn't party, but works very hard. His father runs a machine shop (a common Amish occupation; not all are farmers), and so Leon is genius with tools. I was in the middle of a bathroom plumbing job on the afternoon when Leon first showed up and he quickly took over the job. I was impressed by his complete mastery of hardware store parts. I've heard of Amish auto mechanics who don't drive cars but can fix any model you give them.
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"hormones kick in around the 9th grade and boys, and even some girls, just don't want to sit at desks and do paperwork. They need to use their hands as well as their heads and they ache to be useful. Kids learn more doing real things at that age."
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The technium amplifies possibilities, and a technological oriented education (which is what contemporary education is) optimizes choices. Amish minimalism, on the other hand, is deliberately aimed to optimize satisfaction, fulfillment and the comforting bonds of family and community. It does that well.
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Slowly those millions of hippies drifted away from their deliberate low tech world. One-by-one they left their domes for suburban garages and lofts, and much to our collective astonishment, transformed their small-is-beautiful skills into small-is-startup entrepreneurs. The origins of the Wired generation and the laid-back, long-hair computer culture (think open source) lay in the hippies of the 70s. As Stewart Brand, hippy founder of the Whole Earth Catalog remembers, " 'Do your own thing' easily translated into 'Start your own business'." I've lost count of the hundreds of individuals I personally know who left communes to eventually start hi-tech companies in Silicon Valley. It's almost a cliche by now -- barefoot to billionaire, a la Steve Jobs.
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In retrospect we might say the hippies left for the same reason Thoreau left his Walden; they came and then left to experience life to its fullest. Volunteer simplicity is a possibility, an option, a choice that one should experience for a least part of one's life, not the least to help you sort out your technology priorities. But in my observation simplicity's fullest potential requires that one consider it one phase of many (even if a recurring phase as is meditation or the Sabbath). In the past decade a new generation of minimites has arisen, and they are now urban homesteading — living lightly in cities, supported by adhoc communities of like-minded homesteaders. They are trying to have both, the Amish satisfaction of intense mutual aid and hand labor, and the ever cascading choices of a city.
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there is one aspect of the Amish, and the minimites, and the small-is-beautiful hippies at their heyday, that is selfish. The "good" they wish their minimal technology to achieve is primarily the fulfillment of a fixed nature. The human that is satisfied by this agricultural goodness is an unchanging human. For the Amish, one's fulfillment must swell inside the traditional confine of a farmer, tradesman, or housewife. For minimites and hippies, fulfillment must rise within the confine of the natural unhampered by artificial aids.
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But for anyone raised by a modern culture crammed with ubiquitous writing, communication technology, science, pervasive entertainment, travel, surplus food, abundant nutrition, and new possibilities every day, we are different beings than our ancestors. We think different. That should be no surprise because our personas are dictated beyond our genetics. More than our hunter-gatherer ancestors we are shaped by the accumulating wisdom, practices, traditions, and culture of our all those who've lived before us and live with us. At the same time our genes are racing. And we are speeding the acceleration of those genes by several means, from medical interventions to gene therapy, and then racing our culture with computers and wires as well. In fact every trend of the technium — especially its increasing evolvability — point to more rapid change of human nature in the future. Curiously many of the same traditionalists who deny we are changing, insist that we had better not.
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I believe the Amish and minimites have not, and can not, really discover who they are. They trade discovery for contentment. In their deliberate constraint of technology they optimize an alluring combination of leisure, comfort, and certainty over the optimization of uncertain possibilities - which is what the technium optimizes.
Light Blue Touchpaper » Blog Archive » The Economics of Privacy in Social Networks
Tags: social_network, privacy on 2009-06-27 and saved by 4 people -All Annotations (1) -About
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Too much unnecessary data is collected by most sites, 90% requiring a full-name and DOB. Security practices are dreadful: no sites employed phishing countermeasures, and 80% of sites failed to protect password entry using TLS. Privacy policies were obfuscated and confusing, and almost half failed basic accessibility tests. Privacy controls were confusing and overwhelming, and profiles were almost universally left open by default.
Brain mechanisms of hypnotic paralysis : Neurophilosophy
Tags: brain, neuro, hypnosis, paralysis, fmri on 2009-06-27 and saved by 2 people -All Annotations (4) -About
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Because of the way in which the experiment was designed, the fMRI data allowed the researchers to test two hypotheses. First, they could test whether hypnotic suggestion of paralysis suppressed the intention to move, by analyzing brain activity during the preparatory interval, or whether it inhibited the movements themselves. Second, they could determine whether hypnotic paralysis involves the same inhibitory neural mechanisms as voluntary suppression of movement, by comparing the brain activity measured during the "go" and "no go" conditions under hypnosis and in the control trials in which participants feigned paralysis.
Web Squared: Web 2.0 Five Years On
With more users and sensors feeding more applications and platforms, developers are able to tackle serious real-world problems. As a result, the Web opportunity is no longer growing arithmetically; it’s growing exponentially. Hence our theme for this year: Web Squared. 1990-2004 was the match being struck; 2005-2009 was the fuse; and 2010 will be the explosion.
Key takeaway: A key competency of the Web 2.0 era is discovering implied metadata, and then building a database to capture that metadata and/or foster an ecosystem around it.
Key takeaway: Data analysis, visualization, and other techniques for seeing patterns in data are going to be an increasingly valuable skillset.
Key takeaway: Mapping from unstructured data to structured data sets will be a key Web Squared competency.
Key takeaway: there’s a new information layer being built around Twitter that could grow up to rival the services that have become so central to the Web: search, analytics, and social networks. Twitter also provides an object lesson to mobile providers about what can happen when you provide APIs. Lessons from the Twitter application ecosystem could show opportunities for SMS and other mobile services, or it could grow up to replace them.
Key takeaway: Businesses must learn to harness real-time data as key signals that inform a far more efficient feedback loop for product development, customer service, and resource allocation.
[Be sure to read examples at end: energy use, transportation, health care, the economy]
Tags: software, collaboration, crowd_sourcing, data, social_network, twitter, flickr, cell_phone, search, Google, augmented_reality, pay_attention! on 2009-06-27 and saved by 23 people -All Annotations (122) -About
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"the network as platform" means far more than just offering old applications via the network ("software as a service"); it means building applications that literally get better the more people use them, harnessing network effects not only to acquire users, but also to learn from them and build on their contributions.
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Google Mobile Application for the iPhone. The application detects the movement of the phone to your ear, and automatically goes into speech recognition mode. It uses its microphone to listen to your voice, and decodes what you are saying by referencing not only its speech recognition database and algorithms, but also the correlation to the most frequent search terms in its search database. The phone uses GPS or cell-tower triangulation to detect its location, and uses that information as well. A search for "pizza" returns the result you most likely want: the name, location, and contact information for the three nearest pizza restaurants.
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The Wikitude travel guide application for Android takes image recognition even further. Point the phone’s camera at a monument or other point of interest, and the application looks up what it sees in its online database (answering the question "what looks like that somewhere around here?") The screen shows you what the camera sees, so it’s like a window but with a heads-up display of additional information about what you’re looking at. It’s the first taste of an "augmented reality" future. It superimposes distances to points of interest, using the compass to keep track of where you’re looking. You can sweep the phone around and scan the area for nearby interesting things.
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Microsoft’s Photosynth demonstrates the power of the computer to synthesize 3D images from crowdsourced photographs. Gigapixel photography reveals details that were invisible even to people on the scene. Adobe’s Infinite Images reveals something even more startling: the ability of the computer to synthesize imaginary worlds that never existed, extrapolating a complete 3D experience from a set of photos. The video demonstration needs to be seen to be believed.
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evidence shows that formal systems for adding a priori meaning to digital data are actually less powerful than informal systems that extract that meaning by feature recognition. An ISBN provides a unique identifier for a book, but a title + author gets you close enough.
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in his advice on the direction of the Government 2.0 Summit Federal CTO Aneesh Chopra has urged us not to focus on the successes of Web 2.0 in government, but rather on the unsolved problems. How can the technology community help with such problems as tracking the progress of the economic stimulus package in creating new jobs? How can it speed our progress towards energy independence and a reduction in CO2 emissions? How can it help us remake our education system to produce a more competitive workforce? How can it help us reduce the ballooning costs of healthcare?
ENHANCED: Optogenetics | h+ Magazine
Tags: brain, neuro, genetics, immuno, engineering, depression on 2009-06-27 and saved by 2 people -All Annotations (1) -About
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Optogenetics uses a brain cell switch with two genetic parts. The first is a gene taken from an algae that activates the cell in the presence of blue light in order to turn towards the light and photosynthesis. In a neuron, that activation fires the cell. The second is from an archaeon, a salt-based extremophile, which responds to yellow light by pumping chlorideions. In a brain cell, that means not firing at all.
Edge: BRAIN TIME By David M. Eagleman
The days of thinking of time as a river—evenly flowing, always advancing—are over. Time perception, just like vision, is a construction of the brain and is shockingly easy to manipulate experimentally. We all know about optical illusions, in which things appear different from how they really are; less well known is the world of temporal illusions. When you begin to look for temporal illusions, they appear everywhere. In the movie theater, you perceive a series of static images as a smoothly flowing scene. Or perhaps you've noticed when glancing at a clock that the second hand sometimes appears to take longer than normal to move to its next position—as though the clock were momentarily frozen...the more distant future of time research may change our views of other fields, such as physics. Most of our current theoretical frameworks include the variable t in a Newtonian, river-flowing sense. But as we begin to understand time as a construction of the brain, as subject to illusion as the sense of color is, we may eventually be able to remove our perceptual biases from the equation. Our physical theories are mostly built on top of our filters for perceiving the world, and time may be the most stubborn filter of all to budge out of the way.
Tags: brain, neuro, perception, memory, vision, hearing, ptsd, dyslexia, schizophrenia on 2009-06-27 and saved by 4 people -All Annotations (7) -About
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More subtle illusions can be teased out in the laboratory. Perceived durations are distorted during rapid eye movements, after watching a flickering light, or simply when an "oddball" is seen in a stream of repeated images. If we inject a slight delay between your motor acts and their sensory feedback, we can later make the temporal order of your actions and sensations appear to reverse. Simultaneity judgments can be shifted by repeated exposure to nonsimultaneous stimuli. And in the laboratory of the natural world, distortions in timing are induced by narcotics such as cocaine and marijuana or by such disorders as Parkinson's disease, Alzheimer's disease, and schizophrenia.
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Duration distortions are not the same as a unified time slowing down, as it does in movies. Like vision, time perception is underpinned by a collaboration of separate neural mechanisms that usually work in concert but can be teased apart under the right circumstances.
This is what we find in the lab, but might something different happen during real- life events, as in the common anecdotal report that time "slows down" during brief, dangerous events such as car accidents and robberies? My graduate student Chess Stetson and I decided to turn this claim into a real scientific question, reasoning that if time as a single unified entity slows down during fear, then this slow motion should confer a higher temporal resolution—just as watching a hummingbird in slowmotion video allows finer temporal discrimination upon replay at normal speed, because more snapshots are taken of the rapidly beating wings.
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How do we make sense of the fact that participants in free fall reported a duration expansion yet gained no increased discrimination capacities in the time domain during the fall? The answer is that time and memory are tightly linked. In a critical situation, a walnut-size area of the brain called the amygdala kicks into high gear, commandeering the resources of the rest of the brain and forcing everything to attend to the situation at hand. When the amygdala gets involved, memories are laid down by a secondary memory system, providing the later flashbulb memories of post- traumatic stress disorder. So in a dire situation, your brain may lay down memories in a way that makes them "stick" better. Upon replay, the higher density of data would make the event appear to last longer. This may be why time seems to speed up as you age: you develop more compressed representations of events, and the memories to be read out are correspondingly impoverished. When you are a child, and everything is novel, the richness of the memory gives the impression of increased time passage—for example, when looking back at the end of a childhood summer.
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As long as the signals arrived within this window, viewers' brains would automatically resynchronize the signals; outside that tenth- of- a- second window, it suddenly looked like a badly dubbed movie.
This brief waiting period allows the visual system to discount the various delays imposed by the early stages; however, it has the disadvantage of pushing perception into the past. There is a distinct survival advantage to operating as close to the present as possible; an animal does not want to live too far in the past. Therefore, the tenth-of- a-second window may be the smallest delay that allows higher areas of the brain to account for the delays created in the first stages of the system while still operating near the border of the present. This window of delay means that awareness is postdictive, incorporating data from a window of time after an event and delivering a retrospective interpretation of what happened.3
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But given that the brain received the signals at different times, how can it know what was supposed to be simultaneous in the outside world? How does it know that a bang didn't really happen before a flash? It has been shown that the brain constantly recalibrates its expectations about arrival times. And it does so by starting with a single, simple assumption: if it sends out a motor act (such as a clap of the hands), all the feedback should be assumed to be simultaneous and any delays should be adjusted until simultaneity is perceived. In other words, the best way to predict the expected relative timing of incoming signals is to interact with the world: each time you kick or touch or knock on something, your brain makes the assumption that the sound, sight, and touch are simultaneous.
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It must be emphasized that everything I've been discussing is in regard to conscious awareness. It seems clear from preconscious reactions that the motor system does not wait for all the information to arrive before making its decisions but instead acts as quickly as possible, before the participation of awareness, by way of fast subcortical routes. This raises a question: what is the use of perception, especially since it lags behind reality, is retrospectively attributed, and is generally outstripped by automatic (unconscious) systems? The most likely answer is that perceptions are representations of information that cognitive systems can work with later. Thus it is important for the brain to take sufficient time to settle on its best interpretation of what just happened rather than stick with its initial, rapid interpretation. Its carefully refined picture of what just happened is all it will have to work with later, so it had better invest the time.
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Recently, a few neuroscientists have begun to consider certain disorders—for example, in language production or reading—as potential problems of timing rather than disorders of language as such. For example, stroke patients with language disorders are worse at distinguishing different durations, and reading difficulties in dyslexia may be problems with getting the timing right between the auditory and visual representations.
We have recently discovered that a deficit in temporalorder judgments may underlie some of the hallmark symptoms of schizophrenia, such as misattributions of credit ("My hand moved, but I didn't move it") and auditory hallucinations, which may be an order reversal of the generation and hearing of normal internal monolog.
As the study of time in the brain moves forward, it will likely uncover many contact points with clinical neurology. At present, most imaginable disorders of time would be lumped into a classification of dementia or disorientation, catch-all diagnoses that miss the important clinical details we hope to discern in coming years.
Can You Get Fit in Six Minutes a Week? - Well Blog - NYTimes.com
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After two weeks, both groups showed almost identical increases in their endurance (as measured in a stationary bicycle time trial), even though the one group had exercised for six to nine minutes per week, and the other about five hours. Additionally, molecular changes that signal increased fitness were evident equally in both groups. “The number and size of the mitochondria within the muscles” of the students had increased significantly, Gibala says, a change that, before this work, had been associated almost exclusively with prolonged endurance training. Since mitochondria enable muscle cells to use oxygen to create energy, “changes in the volume of the mitochondria can have a big impact on endurance performance.” In other words, six minutes or so a week of hard exercise (plus the time spent warming up, cooling down, and resting between the bouts of intense work) had proven to be as good as multiple hours of working out for achieving fitness. The short, intense workouts aided in weight loss, too, although Gibala hadn’t been studying that effect. “The rate of energy expenditure remains higher longer into recovery” after brief, high-intensity exercise than after longer, easier workouts, Gibala says. Other researchers have found that similar, intense, brief sessions of exercise improve cardiac health, even among people with heart disease.
There’s a catch, though. Those six minutes, if they’re to be effective, must hurt.
Ezra Klein - An Interview With Atul Gawande
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That brings up another point. Putting aside the difference between El Paso and McAllen, both are going to have higher costs because their people are poorer. This gets to the whole question of social determinants of health: the fact that you're sicker if you have less income, or education. Do we give that enough attention?
I think the really interesting thing is that even beyond the baseline amount of poorer health associated with lower incomes, there's this whole body of powerful literature showing that levels of inequality are even more highly correlated with poor health.
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there's something protective about rural areas, where there's less inequality, so if you take rural areas and urban areas with similar levels of poverty, the rural areas will be healthier. And people say these areas are more socially cohesive and that's what does it. But how does that make cancer rates lower?
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My hypothesis is that communities have local anchor institutions that foster values and norms that make the medical system successful. My sense is that in McAllen it was about a few institutions striking out in different ways that set the norm for what others did.
Morning People And Night Owls Show Different Brain Function
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Evening people became physically stronger throughout the day, but the maximum amount of force morning people could produce remained the same.
Can Rafael Nadal Survive His Own Grueling Style of Tennis? - NYTimes.com
in tennis you have to kill the other.” Not just play better. Sometimes the one who plays better can lose. It’s a sport of splendid cruelty, for all its decorum and finicky trappings; every winning point comes when the other guy, in front of a whole stadium of people staring directly at him, is forced by his opponent into inadequacy. He lunges for the ball but whiffs, he whacks it long, he hits it into the net, he screws up. From the stands, you sometimes see players surrender not because they don’t know how to return the shots coming at them but because the specter of this impending inadequacy has suddenly just taken over their brains. It transpires right in front of your eyes: something sags, and they go sort of limp; you can see their faces and their posture start registering get me out of here.
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Federer is elegant and fluid and cerebral, so that his best tennis looks effortless even when he is making shots that ought to be physically impossible. Nadal is muscled-up and explosive and relentless, so that his best tennis looks not like a gift from heaven but instead like the product of ferocious will. His victories and his taped-up knees and his years as a very good No. 2 in the world all resonate together, as though the rewards and the wages of individual effort had been animated in a single human being: if you hurl yourself at a particular goal furiously enough and long enough you may tear your body up in the process, but maybe you can get there after all.
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“Benito! Throw something at me.” Perez-Barbadillo tossed his cellphone. Nadal’s right arm jerked up and grabbed the phone out of the air, and he smiled and shrugged. “Whatever involves feeling, I do with the right.”
The word he used was sensibilidad, which means many kinds of feeling, literal and perceptual and emotional, and the assertion that Nadal does everything of sensibilidad right-handed seemed sort of preposterous, given what tennis requires of the hand that is holding the racket.
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the young man is educado, as they say in Spanish, not so much educated in the formal sense (Nadal left conventional schooling after he turned pro at 15), but courteous, respectful, raised by a family with its priorities in order. Nadal may have the on-court demeanor of a hit man, as far as the party across the net is concerned, but you will never see this champion hurl his racket during a match.
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Among the numerous Rafa-and-Toni stories I heard in the stands: that Toni declared years ago that if he ever saw Rafa lose his temper on the court (racket-hurling is the standard tantrum, but there’s also cursing the line judges, sulking and yelling at spectators), their coaching relationship would end on the spot. Or that Toni refuses on principle to carry Rafa’s rackets for him. Or that they always fly commercial because Toni scoffs at the idea of a tennis star, even one worth scores of millions, believing that he merits a private jet.
These accounts turn out to be exaggerated, but not by much. “No, no, I’ve never delivered ultimatums to him,” Toni said dismissively in Spanish when I met him in Miami in March. “He knows he can’t throw a racket. He just knows. As far as I’m concerned, it’s shameful when he orders a meal and doesn’t finish it. Understand? Same thing with rackets. These rackets cost money.”
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Like Woods, Nadal started what would become his career sport when he was a toddler; Toni remembers his nephew having been no older than 3. “He was at the club one day, and I handed him a racket, we had some little ones, and then tossed a ball at him,” Toni said before practice one morning in Miami. “When he hit it back — two-handed, he wouldn’t have been strong enough otherwise — I said to myself, ‘O.K., this is not normal.’ His feet, especially, the way he’d move himself into good hitting position when I tossed balls at him. This is a rare thing in a child.”
Rafael’s parents have a standard policy of declining interview requests; their support for him is by all accounts unwavering but uniformly private, and when I asked Toni how the family managed the destined-to-do-this challenge, how you help a gifted child flourish without oppressing or souring him, he shot me a look that was at once mocking and stern. “I don’t believe anybody’s destined to do anything in this life,” he said. He is firmly antireligioso, his term, and he also seems to take pleasure in placing the game of tennis — “being able to pass a ball back and forth over a net,” as I’ve heard him describe it — into its proper perspective in the universe. (Once when I used the word “drama” in a question about Rafa and Federer, Toni interrupted me midsentence. “This is not drama,” he said. “Drama is people in Africa who don’t have enough to eat. Drama is people no one ever smiles at. There is no drama here.”) The primary athletic goal when Rafa was little was ensuring that he had fun
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The arms have also been considered with more seriousness of purpose, as have the legs, by observers trying to dissect the mechanics of Nadal’s power and to guess at the cumulative toll his style of play may be taking on his body. The coach Robert Lansdorp, who has worked with Pete Sampras and Maria Sharapova, among others, uses the informal label “reverse forehand” for Nadal’s most characteristic stroke, his searing, spinning, miserable-to-return forehand drive. The crowds around Nadal’s practice courts love to watch him up close as he repeats this stroke over and over; his racket appears to rip across the top of the tennis ball, shooting it toward the net like a twirling missile, not only brutally fast but also heavy-feeling and unpredictable on the bounce. The “reverse” part comes at the finish, which is sometimes not the traditional across-the-chest follow-through, but rather a defiant full-arm snap upward, as though Nadal were whipping a lariat over his head or delivering an Italian obscene gesture — almost the opposite, Lansdorp observes, of what coaches generally teach tennis students to do.
“It’s not that he’s the only one who hits this,” Lansdorp says. “Nadal just does it to an extreme, and he’s really mastered that reverse forehand to a great extent. He can do it from anyplace, almost to any ball, and make winners. He can hit it cross court, down the line, wherever he wants to go. And he’s probably done it since he was 10. Thank God nobody changed it and told him, ‘Hey, that is not the way to hit a forehand.’ ”
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“The first guys we did were Sampras and Agassi. They were hitting forehands that in general were spinning about 1,800 to 1,900 revolutions per minute.” Sampras’s serve, the deadliest in tennis during his five years as the world No. 1, was so hard to return partly because it combined so much speed with so much spin, Yandell said. “One guy who played against him said to me once: ‘John, I can return to guys who serve faster than Pete. But the problem with Pete’s serve is you’re trying to return a bowling ball with a badminton racket.’ ”
Yandell chuckled. “Federer is hitting with an amazing amount of spin, too, right? Twenty-seven hundred revolutions per minute. Well, we measured one forehand Nadal hit at 4,900. His average was 3,200. Think about that for a second. It’s a little frightening to contemplate. It takes a ball about a second to travel between the players’ rackets, O.K.?” He grabbed a calculator and punched in numbers. “So a Nadal forehand would have turned over 80 times in the second it took to get to Federer’s racket. I don’t know about you, but that’s almost impossible for me to visualize.”
BuddyPress.org → Roadmap
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Pine Grosbeak
behavior and flight
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The flight of this bird is undulating and smooth, performed in a direct
line when it is migrating, at a considerable height above the forests, and in
groups of from five to ten individuals. They alight frequently during the day,
on such trees as are opening their buds or blossoms. At such times they are
extremely gentle, and easily approached, are extremely fond of bathing, and
whether on the ground or on branches, move by short leaps. I have been much
surprised to see, on my having fired, those that were untouched, fly directly
towards me, until within a few feet, and then slide off and alight on the lower
branches of the nearest tree, where, standing as erect as little Hawks, they
gazed upon me as if I were an object quite new, and of whose nature they were
ignorant. They are easily caught under snow-shoes put up with a figure of four,
around the wood-cutters' camps in the State of Maine, and are said to afford
good eating. Their food consists of the buds and seeds of almost all sorts of
trees. Occasionally also they seize a passing insect. I once knew one of these
sweet songsters, which, in the evening, as soon as the lamp was lighted in the
room where its cage was hung, would instantly tune its voice anew.
Cornell Lab of Ornithology - Winter 2008
more corroborating evidence
Tags: bird_id on 2009-06-19 -All Annotations (1) -About
more fromwww.birds.cornell.edu
-
Pine Grosbeaks are making their first major irruption into the northeastern United States in several years, delighting a new generation of birders who are now seeing these large finches for the first time. Grosbeaks have been reported across much of New York, Vermont, New Hampshire, Massachusetts, and Maine, as well as parts of Michigan, Wisconsin, and Minnesota. Sightings of two birds in northern Ohio offer hope that Pine Grosbeaks will continue to move southward into states such as New Jersey, Pennsylvania, Indiana, Illinois, Iowa, and South Dakota, where they can occur during major irruption years.
Ezra Klein - Health Insurance Exchanges: The Most Important, Undernoticed Part of Health Reform
conversation gone nowhere
Tags: healthcare, reform, insurance, president_obama on 2009-06-17 and saved by 2 people -All Annotations (2) -About
more fromvoices.washingtonpost.com
-
The Health Insurance Exchange gives you another option. Unlike your employer, it will have a wide array of competing providers offering different plans with varying benefit levels, emphases and price tags. Unlike the individual market, insurers won't be able to discriminate based on your health history or your future risk. Plans will have to be certified as meeting a minimum level of comprehensiveness. Plans that routinely screw over members will lose customers to competing insurers.
Edge: HOW DOES OUR LANGUAGE SHAPE THE WAY WE THINK? By Lera Boroditsky
Tags: brain, language on 2009-06-17 and saved by 19 people -All Annotations (45) -About
more fromwww.edge.org
-
Let's focus on just the verb, "read." To say this sentence in English, we have to mark the verb for tense; in this case, we have to pronounce it like "red" and not like "reed." In Indonesian you need not (in fact, you can't) alter the verb to mark tense. In Russian you would have to alter the verb to indicate tense and gender. So if it was Laura Bush who did the reading, you'd use a different form of the verb than if it was George. In Russian you'd also have to include in the verb information about completion. If George read only part of the book, you'd use a different form of the verb than if he'd diligently plowed through the whole thing. In Turkish you'd have to include in the verb how you acquired this information: if you had witnessed this unlikely event with your own two eyes, you'd use one verb form, but if you had simply read or heard about it, or inferred it from something Bush said, you'd use a different verb form.
-
the Kuuk Thaayorre, like many other Aboriginal groups, use cardinal-direction terms — north, south, east, and west — to define space.1 This is done at all scales, which means you have to say things like "There's an ant on your southeast leg" or "Move the cup to the north northwest a little bit." One obvious consequence of speaking such a language is that you have to stay oriented at all times, or else you cannot speak properly. The normal greeting in Kuuk Thaayorre is "Where are you going?" and the answer should be something like " Southsoutheast, in the middle distance." If you don't know which way you're facing, you can't even get past "Hello."
-
Kuuk Thaayorre are much better than English speakers at staying oriented and keeping track of where they are, even in unfamiliar landscapes or inside unfamiliar buildings. What enables them — in fact, forces them — to do this is their language. Having their attention trained in this way equips them to perform navigational feats once thought beyond human capabilities.
Can lack of sleep drive you mad? - Features, Health & Families - The Independent
Tags: sleep, mental_health on 2009-06-16 and saved by 2 people -All Annotations (1) -About
more fromwww.independent.co.uk
-
Exactly why lack of sleep can have such a profound effect on our psychological
and emotional well-being is a question that scientists are just beginning to
tackle. But one key factor may be that when we don’t get enough sleep, the
part of the brain behind our foreheads that controls our thoughts,
behaviours and emotions (the prefrontal lobe) doesn’t function efficiently.
Our rational mind, the executive centre that keeps us on an even keel, is
overwhelmed by our feelings, no matter how negative.
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- 85writing,
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- 1x-phi,
- 1yankees,
- 20year_end,
- 4youth,
- 2zebra_finch,
- 1zola,
- 2zugunruhe


