All Things TOK

"For the second time in just over two decades, China's Communist leaders watch anxiously as a series of popular revolutions in another critical area of the world sweep out entrenched dictators and threaten to reverberate in the People's Republic. In the late 1980s and early 1990s, it was fellow Communist regimes in Eastern Europe and the Soviet Union that toppled under people power. Now it is Arab and Persian tyrants who face the wrath of the people they have oppressed for generations. Events have seemed to reach the critical tipping-point when the regime's fear of the people exceeds the people's fear of the regime. Chinese bloggers have been quick to raise the obvious question - could it happen in China? - and to begin testing the waters. Internet postings have called for silent protests in several Chinese cities to emulate Tunisia's "jasmine revolution." They have spawned a few sporadic gatherings that the authorities quickly snuffed out before they could grow - but it was a surprisingly early indication that the spark of hope for freedom in China is not extinguished."

"Could a Tunisian fruit vendor's self-immolation spark political turmoil - in China? That may be less far-fetched than it sounds. Revolutionaries have always inspired each other, from French san-culottes channeling Thomas Paine to South American Marxists embracing Chairman Mao. And as recent events in Egypt show, civic anger these days is viral; it shows little respect for frontiers. Noted economic historian Barry Eichengreen, for one, thinks Beijing should worry. He sees parallels between the dire political and economic conditions that lit the fuse in Cairo and circumstances in China."

"The comparisons are inescapable, and for many pundits, irresistible. Thousands of jubilant protestors gathered under often tense and volatile circumstances on a landmark national square to voice opposition to their government. It could be Cairo, it could be Beijing. As the world waits to see how Egypt's mass protests will end, talk of China's own disastrous uprising in 1989 continues on. In China, the Tiananmen Square uprising is on the minds of many watching the situation in Egypt, and the political content is being carefully managed and filtered for China's domestic audience."

"You'd think that with all their Googling to find the Spark Notes of the novels they didn't read, today's students would understand how the search engine works. Wrong: They are completely clueless! In a detailed study of 30 college students by anthropologists at Illinois Wesleyan, only seven were able to do a "reasonably well-executed search." According to Inside Higher Ed: They were basically clueless about the logic underlying how the search engine organizes and displays its results. Consequently, the students did not know how to build a search that would return good sources. (For instance, limiting a search to news articles, or querying specific databases such as Google Book Search or Google Scholar.) Duke and Asher said they were surprised by "the extent to which students appeared to lack even some of the most basic information literacy skills that we assumed they would have mastered in high school." Even students who were high achievers in high school suffered from these deficiencies, Asher told Inside Higher Ed in an interview."

In this edition I would like to explain why hot water freezes faster than cold water, when put into the freezer. It is a very counter-intuitive observation, it's a paradox. This is called the Mpemba Effect. The effect is named according to Tanzanian high-school student Erasto B. Mpemba who re-discovered the effect while making ice cream back in 1963. The Mpemba Effect is a nice example of how the change of one variable, the temperature, can have unexpected side effects. Most people assume that the difference between a hot glass of water and a cold glass of water is only the temperature. But this is not the case. Just by heating the water we are introducing a range of other variables that have an unexpected effect on the outcome.

"Acousticians have been designing concert halls for more than a century, but Dr. Kyriakakis does something different. He shapes the sound of music to conform to the space in which it is played. The goal is what Dr. Kyriakakis calls the "ground truth" - to replicate the original in every respect. "We remove the room," he said, "so the ground truth can be delivered." Dr. Kyriakakis, an electrical engineer at U.S.C. and the founder and chief technical officer of Audyssey Laboratories, a Los Angeles-based audio firm, could not achieve his results without modern sound filters and digital microprocessors. But the basis of his technique is rooted in the science of psychoacoustics, the study of sound perception by the human auditory system. "It's about the human ear and the human brain, and understanding how the human ear perceives sound," Dr. Kyriakakis said. Psychoacoustics has become an invaluable tool in designing hearing aids and cochlear implants, and in the study of hearing generally. "Psychoacoustics is fundamental," said Andrew J. Oxenham, a psychologist and hearing expert at the University of Minnesota. "You need to know how the normally functioning auditory system works - how sound relates to human perception." "

"During the summer of 2008, the eminent Notre Dame sociologist Christian Smith led a research team that conducted in-depth interviews with 230 young adults from across America. The interviews were part of a larger study that Smith, Kari Christoffersen, Hilary Davidson, Patricia Snell Herzog and others have been conducting on the state of America's youth. Josh Haner/The New York Times Smith and company asked about the young people's moral lives, and the results are depressing. It's not so much that these young Americans are living lives of sin and debauchery, at least no more than you'd expect from 18- to 23-year-olds. What's disheartening is how bad they are at thinking and talking about moral issues. The interviewers asked open-ended questions about right and wrong, moral dilemmas and the meaning of life. In the rambling answers, which Smith and company recount in a new book, "Lost in Transition," you see the young people groping to say anything sensible on these matters. But they just don't have the categories or vocabulary to do so. "

"The 21-year-old woman was carefully trained not to flirt with anyone who came into the laboratory over the course of several months. She kept eye contact and conversation to a minimum. She never used makeup or perfume, kept her hair in a simple ponytail, and always wore jeans and a plain T-shirt. Each of the young men thought she was simply a fellow student at Florida State University participating in the experiment, which ostensibly consisted of her and the man assembling a puzzle of Lego blocks. But the real experiment came later, when each man rated her attractiveness. Previous research had shown that a woman at the fertile stage of her menstrual cycle seems more attractive, and that same effect was observed here - but only when this woman was rated by a man who wasn't already involved with someone else. The other guys, the ones in romantic relationships, rated her as significantly less attractive when she was at the peak stage of fertility, presumably because at some level they sensed she then posed the greatest threat to their long-term relationships. To avoid being enticed to stray, they apparently told themselves she wasn't all that hot anyway. This experiment was part of a new trend in evolutionary psychology to study "relationship maintenance." Earlier research emphasized how evolution primed us to meet and mate: how men and women choose partners by looking for cues like facial symmetry, body shape, social status and resources. "

"The typical institutional response to bullying is to get tough. In the Tyler Clementi case, prosecutors are considering bringing hate-crime charges. But programs like the one I want to discuss today show the potential of augmenting our innate impulses to care for one another instead of just falling back on punishment as a deterrent. And what's the secret formula? A baby. We know that humans are hardwired to be aggressive and selfish. But a growing body of research is demonstrating that there is also a biological basis for human compassion. Brain scans reveal that when we contemplate violence done to others we activate the same regions in our brains that fire up when mothers gaze at their children, suggesting that caring for strangers may be instinctual. When we help others, areas of the brain associated with pleasure also light up. Research by Felix Warneken and Michael Tomasello indicates that toddlers as young as 18 months behave altruistically. (If you want to feel good, watch one of their 15-second video clips here.)"

"How do we tell the difference between real threats and bogus ones? (This is important for many reasons; for one, chasing fake threats takes away resources from real issues.) But it's tough to do, since evolution has given us a brain with what scientists call a "negativity bias" that makes it prone to feeling threatened. This bias developed because the ancient mammals, primates, and early humans that were all mellow and fearless did not notice the shadow overhead or slither nearby that CHOMP! killed them. The ones that survived to pass on their genes were nervous and cranky, and we are their great-grandchildren, sitting atop the food chain, armed with nuclear weapons. Your brain is continually looking for bad news. As soon as it finds some, it fixates on it with tunnel vision, fast-tracks it into memory storage, and then reactivates it at the least hint of anything even vaguely similar. But good news gets a kind of neural shrug: "uh, whatever." In effect, the brain is like Velcro for negative experiences but Teflon for positive ones. All this makes human beings super-sensitive to apparent threats. Basically, in evolution, there are two kinds of mistakes: (1) You think there is a tiger in the bushes but there isn't one, and (2) You think the coast is clear, no tiger in the bushes, but there really is one about to pounce. These mistakes have very different consequences. The first one will make you anxious, but the second one will kill you. That's why Mother Nature wants you to make the first mistake a thousand times over in order to avoid making the second mistake even once. This hard-wired tendency toward fear affects individuals, groups (from couples to multinational corporations), and nations. It makes them overestimate threats, underestimate opportunities, and underestimate resources. "

"Prosecutors here noted that she is also in the vanguard of a growing trial trend: in Arizona, Hawaii, Idaho, Indiana and some other states in the last few years, courts have allowed such trained dogs to offer children and other vulnerable witnesses nuzzling solace in front of juries. The new role for dogs as testimony enablers can, however, raise thorny legal questions. Defense lawyers argue that the dogs may unfairly sway jurors with their cuteness and the natural empathy they attract, whether a witness is telling the truth or not, and some prosecutors insist that the courtroom dogs can be a crucial comfort to those enduring the ordeal of testifying, especially children. The new witness-stand role for dogs in several states began in 2003, when the prosecution won permission for a dog named Jeeter with a beige button nose to help in a sexual assault case in Seattle. "Sometimes the dog means the difference between a conviction and an acquittal," said Ellen O'Neill-Stephens, a prosecutor there who has become a campaigner for the dog-in-court cause. "

"Professor Philip Zimbardo conveys how our individual perspectives of time affect our work, health and well-being. Time influences who we are as a person, how we view relationships and how we act in the world."

December 2005 Over the millennia, many mathematicians have hoped that mathematics would one day produce a Theory of Everything (TOE); a finite set of axioms and rules from which every mathematical truth could be derived. But in 1931 this hope received a serious blow: Kurt Gödel published his famous Incompleteness Theorem, which states that in every mathematical theory, no matter how extensive, there will always be statements which can't be proven to be true or false. Gregory Chaitin has been fascinated by this theorem ever since he was a child, and now, in time for the centenary of Gödel's birth in 2006, he has published his own book, called Meta Math! on the subject (you can read a review in this issue of Plus). It describes his journey, which, from the work of Gödel via that of Leibniz and Turing, led him to the number Omega, which is so complex that no mathematical theory can ever describe it. In this article he explains what Omega is all about, why maths can have no Theory of Everything, and what this means for mathematicians."

"An online poll conducted in the '90s set Vitaly Komar, Alex Melamid and David Soldier on a quest to create the most annoying song ever. After gathering data about people's least favorite music and lyrical subjects, they did the unthinkable: they combined them into a single monstrosity, specifically engineered to sound unpleasant to the maximum percentage of listeners. The song is not new, but it resurfaced on Dial "M" for Musicology. Amazingly, this "most unwanted music" contains little dissonance - that would have been too easy. For the most part, they seem to have tried to assemble these elements in a listenable way. Komar & Melamid and David Soldier's list of undesirable elements included holiday music, bagpipes, pipe organ, a children's chorus and the concept of children in general (really?), Wal-Mart, cowboys, political jingoism, George Stephanopoulos, Coca Cola, bossanova synths, banjo ferocity, harp glissandos, oompah-ing tubas and much, much more. It's actually a fascinating listen, worthwhile for the opera rapping alone. (We didn't think that was possible either.)"

"A long-standing idea that human languages share universal features that are dictated by human brain structure has been cast into doubt. A study reported in Nature has borrowed methods from evolutionary biology to trace the development of grammar in several language families. The results suggest that features shared across language families evolved independently in each lineage. The authors say cultural evolution, not the brain, drives language development. At the heart of both studies is a method based on what are known as phylogenetic studies."

Awesome visual Prezi-like demonstration of the universal macro and the subatomic micro as a comparative scale. Very cool!

"At one point in "The Wizard Of Oz," Dorothy (Judy Garland) picks an apple and the tree she picks it off protests: "Well, how would you like to have someone come along and pick something off of you?" Dorothy is abashed and she says, "Oh, dear - I keep forgetting I'm not in Kansas," by which she means she's now entered an alternate universe where the usual distinctions between persons and objects, animate and inanimate, human beings and the natural world that is theirs to exploit do not hold. In Kansas and, she once assumed, everywhere else, trees are things you pick things off (even limbs) and persons are not. Persons have an autonomy and integrity of body that are to be respected; trees do not. A person who is maimed has a legal cause of action. A tree that has been cut down has no legal recourse, although there may be a cause of action (not, however, on behalf of the tree) if it was cut down by someone other than the owner of the property it stood on. All this seems obvious, but what the tree's question to Dorothy shows is that the category of the obvious can be challenged and unsettled. I thought of this scene on the last day of my jurisprudence course when we came to the chapter on animal rights and the rights of objects . The question of the day was posed by Christopher Stone's landmark article "Should Trees Have Standing? - Toward Legal Rights For Natural Objects" (1972), and was answered, it would seem, in Genesis 1:26, when God gave man "dominion over the fish of the sea, and over the fowl of the air, and over the cattle and over all the earth and over every creeping thing that creepeth upon the earth." The dominion of man over animals and nature is established theologically, and it is established again in the modern period by classical liberalism's privileging of individual rights exercised by beings endowed (by either God or nature) with the capacity of choice. From Locke to Mill to Berlin to Rawls, the centrality of the

"Noam Chomsky: My Reaction to Osama bin Laden's Death May 6, 2011 Bookmark and Share We might ask ourselves how we would be reacting if Iraqi commandos landed at George W. Bush's compound, assassinated him, and dumped his body in the Atlantic. By Noam Chomsky chomsky300.jpgIt's increasingly clear that the operation was a planned assassination, multiply violating elementary norms of international law. There appears to have been no attempt to apprehend the unarmed victim, as presumably could have been done by 80 commandos facing virtually no opposition-except, they claim, from his wife, who lunged towards them. In societies that profess some respect for law, suspects are apprehended and brought to fair trial. I stress "suspects." In April 2002, the head of the FBI, Robert Mueller, informed the press that after the most intensive investigation in history, the FBI could say no more than that it "believed" that the plot was hatched in Afghanistan, though implemented in the UAE and Germany. What they only believed in April 2002, they obviously didn't know 8 months earlier, when Washington dismissed tentative offers by the Taliban (how serious, we do not know, because they were instantly dismissed) to extradite bin Laden if they were presented with evidence-which, as we soon learned, Washington didn't have. Thus Obama was simply lying when he said, in his White House statement, that "we quickly learned that the 9/11 attacks were carried out by al Qaeda." Nothing serious has been provided since. There is much talk of bin Laden's "confession," but that is rather like my confession that I won the Boston Marathon. He boasted of what he regarded as a great achievement. There is also much media discussion of Washington's anger that Pakistan didn't turn over bin Laden, though surely elements of the military and security forces were aware of his presence in Abbottabad. Less is said about Pakistani anger that the U.S. invaded their territor

"Killer Whale" is terrible branding. From now on, people will call you "Happy Silly Fun Fish."

"Apart from the most rabid fundamentalists among us, nearly everyone admits that the Bible might contain errors -- a faulty creation story here, a historical mistake there, a contradiction or two in some other place. But is it possible that the problem is worse than that -- that the Bible actually contains lies? Most people wouldn't put it that way, since the Bible is, after all, sacred Scripture for millions on our planet. But good Christian scholars of the Bible, including the top Protestant and Catholic scholars of America, will tell you that the Bible is full of lies, even if they refuse to use the term. And here is the truth: Many of the books of the New Testament were written by people who lied about their identity, claiming to be a famous apostle -- Peter, Paul or James -- knowing full well they were someone else. In modern parlance, that is a lie, and a book written by someone who lies about his identity is a forgery. Most modern scholars of the Bible shy away from these terms, and for understandable reasons, some having to do with their clientele. Teaching in Christian seminaries, or to largely Christian undergraduate populations, who wants to denigrate the cherished texts of Scripture by calling them forgeries built on lies? And so scholars use a different term for this phenomenon and call such books "pseudepigrapha." You will find this antiseptic term throughout the writings of modern scholars of the Bible. It's the term used in university classes on the New Testament, and in seminary courses, and in Ph.D. seminars. What the people who use the term do not tell you is that it literally means "writing that is inscribed with a lie.""