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"Students have always faced distractions and time-wasters. But computers and cellphones, and the constant stream of stimuli they offer, pose a profound new challenge to focusing and learning. Researchers say the lure of these technologies, while it affects adults too, is particularly powerful for young people. The risk, they say, is that developing brains can become more easily habituated than adult brains to constantly switching tasks - and less able to sustain attention. "Their brains are rewarded not for staying on task but for jumping to the next thing," said Michael Rich, an associate professor at Harvard Medical School and executive director of the Center on Media and Child Health in Boston. And the effects could linger: "The worry is we're raising a generation of kids in front of screens whose brains are going to be wired differently." But even as some parents and educators express unease about students' digital diets, they are intensifying efforts to use technology in the classroom, seeing it as a way to connect with students and give them essential skills. Across the country, schools are equipping themselves with computers, Internet access and mobile devices so they can teach on the students' technological territory. "

"'The most beautiful experience we can have is the mysterious - the fundamental emotion which stands at the cradle of true art and true science.' "We live in a society absolutely dependent on science and technology," Carl Sagan famously quipped in 1994, "and yet have cleverly arranged things so that almost no one understands science and technology. That's a clear prescription for disaster." Little seems to have changed in the nearly two decades since, and although the government is now actively encouraging "citizen science," for many "citizens" the understanding of - let alone any agreement about - what science is and does remains meager. So, what exactly is science, what does it aspire to do, and why should we the people care? It seems like a simple question, but it's an infinitely complex one, the answer to which is ever elusive and contentious. Gathered here are several eloquent definitions that focus on science as process rather than product, whose conduit is curiosity rather than certainty."

"In George Orwell's "1984," that novel of totalitarian politics whose great mistake was to emphasize the villainy of society's masters while playing down the mischief of the masses, the goal of communications technology was brutal and direct: to ensure the dominance of the state. The sinister "telescreens" placed in people's homes spewed propaganda and conducted surveillance, keeping the population passive and the leadership firmly in control. In the face of constant monitoring, all people could do was sterilize their behavior, conceal their thoughts and carry on like model citizens.\n\nThis was, it turns out, a quaint scenario, grossly simplistic and deeply melodramatic. As the Internet proves every day, it isn't some stern and monolithic Big Brother that we have to reckon with as we go about our daily lives, it's a vast cohort of prankish Little Brothers equipped with devices that Orwell, writing 60 years ago, never dreamed of and who are loyal to no organized authority. The invasion of privacy - of others' privacy but also our own, as we turn our lenses on ourselves in the quest for attention by any means - has been democratized. "

"For many years, scientists have thought that the first Americans came here from Asia 13,000 years ago, during the last ice age, probably by way of the Bering Strait. They were known as the Clovis people, after the town in New Mexico where their finely wrought spear points were first discovered in 1929. But in more recent years, archaeologists have found more and more traces of even earlier people with a less refined technology inhabiting North America and spreading as far south as Chile. And now clinching evidence in the mystery of the early peopling of America - Clovis or pre-Clovis? - for nearly all scientists appears to have turned up at a creek valley in the hill country of what is today Central Texas, 40 miles northwest of Austin. The new findings establish that the last major human migration, into the Americas, began earlier than once thought. And the discovery could change thinking about how people got here (by coastal migrations along shores and in boats) and how they adapted to the new environment in part by making improvements in toolmaking that led eventually to the technology associated with the Clovis culture. "

Part 1 of a 4-part series examining what happens when science is used for marketing (using brain-training software as the central example). Almost all of the programs that tout their ability to train your brain are limited in scope. Most train your ability to perform simple cognitive tasks by having you perform them repeatedly, often adapting the difficulty of the task over time to keep it challenging. Some determine which tasks you perform well and which need improvement and adjust the tasks based on your ongoing performance. The simplest ones, though, simply track how much you improve and inform you that such improvements have made increased the fitness of your brain. Such task-specific training effects can be really useful-if you want to enhance your ability to do Sudoku, by all means practice doing Sudoku. But what pitches for those programs regularly imply is that playing their videogame or using their training will enhance your ability to do other tasks that weren't specifically trained. For example, this advertisement for Nintendo's Brain Age implies that by using their game, you will be better able to remember your friend's name when you meet him on the street. The idea that playing games can improve your brain is pervasive, and it taps what Chris Chabris and I have called the "illusion of potential." A common myth of the mind is that we have vast pools of untapped mental resources that can be released with relatively minimal effort. This common intuitive belief underlies the pervasive myth that we only use 10% of our brains, that listening to Mozart can increase our IQ [pdf], and even the belief that some people have "discovered" psychic abilities. We devote the last main chapter of The Invisible Gorilla to this belief and its ramifications, and we recently wrote a column for the NY Times discussing how popular self-help books like The Secret and The Power capitalize on this mistaken belief. The marketing for some brain training programs

"When high school students in Shanghai crack their history textbooks this fall they may be in for a surprise. The new standard world history text drops wars, dynasties and Communist revolutions in favor of colorful tutorials on economics, technology, social customs and globalization. Socialism has been reduced to a single, short chapter in the senior high school history course. Chinese Communism before the economic reform that began in 1979 is covered in a sentence. The text mentions Mao only once - in a chapter on etiquette. Nearly overnight the country's most prosperous schools have shelved the Marxist template that had dominated standard history texts since the 1950's. The changes passed high-level scrutiny, the authors say, and are part of a broader effort to promote a more stable, less violent view of Chinese history that serves today's economic and political goals. Supporters say the overhaul enlivens mandatory history courses for junior and senior high school students and better prepares them for life in the real world. The old textbooks, not unlike the ruling Communist Party, changed relatively little in the last quarter-century of market-oriented economic reforms. They were glaringly out of sync with realities students face outside the classroom. But critics say the textbooks trade one political agenda for another. They do not so much rewrite history as diminish it. The one-party state, having largely abandoned its official ideology, prefers people to think more about the future than the past."

"How do we use the technologies of computation, statistics and networking to shed light - without killing the magic? This is more than a practical question. It goes to the heart of what we are after as humans. "

"But a better understanding of Asian writing systems has not stopped Western experts from making grand claims about their virtues and limitations. The latest scholar to venture into such politically sensitive territory is William C. Hannas, a linguist who speaks 12 languages and works as a senior officer at the Foreign Broadcast Information Service, a federal agency in Washington. In a polemical new book, ''The Writing on the Wall: How Asian Orthography Curbs Creativity'' (University of Pennsylvania Press), Mr. Hannas blames the writing systems of China, Japan and Korea for what he says is East Asia's failure to make significant scientific and technological breakthroughs compared to Western nations. Mr. Hannas's logic goes like this: because East Asian writing systems lack the abstract features of alphabets, they hamper the kind of analytical and abstract thought necessary for scientific creativity. "

"If the police want to search your house, they need a warrant. If they want to follow you around in an unmarked car, they don't. But what about GPS technology? It's highly accurate, virtually effortless and law enforcement are using it like never before. But the courts are divided on the legality of GPS and the issue seems destined for the Supreme Court. Law professor Orrin Kerr explains."

"If the cuts have struck a nerve far from this upstate campus and in more than one language, it is in large part because they involve language itself, and some cherished staples of the curriculum. The university announced this fall that it would stop letting new students major in French, Italian, Russian and the classics. The move mirrors similar prunings around the country at other public colleges and universities that are reeling from steep drops in state aid. After a generation of expansion, academic officials are being forced to lop entire majors. More often than not, foreign languages - European ones in particular - are on the chopping block. The reasons for their plight are many. Some languages may seem less vital in a world increasingly dominated by English. Web sites and new technologies offer instant translations. The small, interactive classes typical of foreign language instruction are costly for universities. But the paradox, some experts in higher education say, is that many schools are eliminating language degrees and graduate programs just as they begin to embrace an international mission: opening campuses abroad, recruiting students from overseas and talking about graduating citizens of the world. The University at Albany's motto is "The World Within Reach." "

The TOK issue here is whether or not European foreign languages are necessary or valuable and thus, whether or not their elimination is a loss to higher education.

"A new study uses advanced brain-scanning technology to cast light on a topic that psychologists have puzzled over for more than half a century: social conformity. The study was based on a famous series of laboratory experiments from the 1950's by a social psychologist, Dr. Solomon Asch. In those early studies, the subjects were shown two cards. On the first was a vertical line. On the second were three lines, one of them the same length as that on the first card. Then the subjects were asked to say which two lines were alike, something that most 5-year-olds could answer correctly. But Dr. Asch added a twist. Seven other people, in cahoots with the researchers, also examined the lines and gave their answers before the subjects did. And sometimes these confederates intentionally gave the wrong answer. Dr. Asch was astonished at what happened next. After thinking hard, three out of four subjects agreed with the incorrect answers given by the confederates at least once. And one in four conformed 50 percent of the time. Dr. Asch, who died in 1996, always wondered about the findings. Did the people who gave in to group do so knowing that their answers was wrong? Or did the social pressure actually change their perceptions? "

"Where is my mind? The question - memorably posed by rock band the Pixies in their 1988 song - is one that, perhaps surprisingly, divides many of us working in the areas of philosophy of mind and cognitive science. Look at the science columns of your daily newspapers and you could be forgiven for thinking that there is no case to answer. We are all familiar with the colorful "brain blob" pictures that show just where activity (indirectly measured by blood oxygenation level) is concentrated as we attempt to solve different kinds of puzzles: blobs here for thinking of nouns, there for thinking of verbs, over there for solving ethical puzzles of a certain class, and so on, ad blobum. (In fact, the brain blob picture has seemingly been raised to the status of visual art form of late with the publication of a book of high-octane brain images. ) There is no limit, it seems, to the different tasks that elicit subtly, and sometimes not so subtly, different patterns of neural activation. Surely then, all the thinking must be going on in the brain? That, after all, is where the lights are. As our technologies become better adapted to fit the niche provided by the biological brain, they become more like cognitive prosthetics. But then again, maybe not. We've all heard the story of the drunk searching for his dropped keys under the lone streetlamp at night. When asked why he is looking there, when they could surely be anywhere on the street, he replies, "Because that's where the light is." Could it be the same with the blobs?"

"WHEN colleges and universities finally decide to make full use of the Internet, most professors will lose their jobs. Enlarge This Image Many leading universities have put free videos online featuring their best lecturers. One aggregator site, Academic Earth, offers 150 courses. That includes me. I'm not worried, though, at least for the moment. Amid acute budget crises, state universities like mine can't afford to take that very big step - adopting the technology that renders human instructors obsolete. "

"Have the latest advances in communication technology radically altered the fundamental dynamics of struggles for change in authoritarian settings? Or have cell phones and social media merely brought about small shifts in the dynamics of revolution? Is the Web a godsend to those trapped in oppressive states, as Nobel Laureate Liu Xiaobo suggests in his essay "The Internet is God's Gift to China"? Or does this thinking give in to a form of "cyber-utopianism" that glosses over the potential of new media to be used by autocrats, their propaganda ministries and security forces to massage public opinion, keep tabs on dissidents and ensure that populations stay docile and distracted, as Evgeny Morozov argues in The Net Delusion: The Dark Side of Internet Freedom? This is a fascinating moment to ponder such questions, due both to what is happening on the streets in the Middle East and in the offices of publishing, where Morozov's book is one of many to stake out bold claims about the pros and cons of the newest new media."

"When high school students in Shanghai crack their history textbooks this fall they may be in for a surprise. The new standard world history text drops wars, dynasties and Communist revolutions in favor of colorful tutorials on economics, technology, social customs and globalization. Socialism has been reduced to a single, short chapter in the senior high school history course. Chinese Communism before the economic reform that began in 1979 is covered in a sentence. The text mentions Mao only once - in a chapter on etiquette. Nearly overnight the country's most prosperous schools have shelved the Marxist template that had dominated standard history texts since the 1950's. The changes passed high-level scrutiny, the authors say, and are part of a broader effort to promote a more stable, less violent view of Chinese history that serves today's economic and political goals."

"FaceResearch.org allows you to participate in short online psychology experiments looking at the traits people find attractive in faces and voices. Register to participate in experiments if this is your first time at FaceResearch.org or login if you have been here before. Make your own average faces with our interactive demos! In addition to participating in facial attractiveness experiments, you can also complete lifestyle and personality questionnaires about characteristics that may be associated with face and voice preferences and see how you compare to others. We post all our study results after we have finished collecting data. You can also learn about our computer-graphic technology and read about some of the findings of our previous studies."

"A few months after the World Trade Center attacks, a strange message appeared on a U.S. Army computer: "Your security system is crap," it read. "I am Solo. I will continue to disrupt at the highest levels." Solo scanned thousands of U.S. government machines and discovered glaring security flaws in many of them. Between February 2001 and March 2002, Solo broke into almost a hundred PCs within the Army, Navy, Air Force, NASA, and the Department of Defense. He surfed around for months, copying files and passwords. At one point he brought down the U.S. Army's entire Washington, D.C., network, taking about 2000 computers out of service for three days. U.S. attorney Paul McNulty called his campaign "the biggest military computer hack of all time." But despite his expertise, Solo didn't cover his tracks. He was soon traced to a small apartment in London. In March 2002, the United Kingdom's National Hi-Tech Crime Unit arrested Gary McKinnon, a quiet 36-year-old Scot with elfin features and Spock-like upswept eyebrows. He'd been a systems administrator, but he didn't have a job at the time of his arrest; he spent his days indulging his obsession with UFOs. In fact, McKinnon claimed that UFOs were the reason for his hack. Convinced that the government was hiding alien antigravity devices and advanced energy technologies, he planned to find and release the information for the benefit of humanity. He said his intrusion was detected just as he was downloading a photo from NASA's Johnson Space Center of what he believed to be a UFO. Despite the outlandishness of his claims, McKinnon now faces extradition to the United States under a controversial treaty that could land him in prison for years-and possibly for the rest of his life. The case has transformed McKinnon into a cause célèbre. Supporters have rallied outside Parliament with picket signs. There are "Free Gary" websites, T-shirts, posters. Rock star David Gilmour, the former guitarist for Pink Floyd, even recorded

"The photographs of celebrities and models in fashion advertisements and magazines are routinely buffed with a helping of digital polish. The retouching can be slight - colors brightened, a stray hair put in place, a pimple healed. Or it can be drastic - shedding 10 or 20 pounds, adding a few inches in height and erasing all wrinkles and blemishes, done using Adobe's Photoshop software, the photo retoucher's magic wand. "Fix one thing, then another and pretty soon you end up with Barbie," said Hany Farid, a professor of computer science and a digital forensics expert at Dartmouth. And that is a problem, feminist legislators in France, Britain and Norway say, and they want digitally altered photos to be labeled. In June, the American Medical Association adopted a policy on body image and advertising that urged advertisers and others to "discourage the altering of photographs in a manner that could promote unrealistic expectations of appropriate body image." Dr. Farid said he became intrigued by the problem after reading about the photo-labeling proposals in Europe. Categorizing photos as either altered or not altered seemed too blunt an approach, he said. Dr. Farid and Eric Kee, a Ph.D. student in computer science at Dartmouth, are proposing a software tool for measuring how much fashion and beauty photos have been altered, a 1-to-5 scale that distinguishes the infinitesimal from the fantastic. Their research is being published this week in a scholarly journal, The Proceedings of the National Academy of Sciences. "

The idea that your mother tongue shapes your experience of the world may be true after all.