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Yawning is one of the first things we learn to do. “Learn” may not even be quite the right word. Johanna de Vries, a professor of obstetrics at Vrije University Amsterdam, has discovered that the human fetus yawns during its first trimester in the womb. And, unless we succumb to neurodegenerative disease, yawning is something we keep doing throughout our lives. “You don’t decide to yawn,” Robert Provine, a neuroscientist and the author of “Curious Behavior: Yawning, Laughing, Hiccupping, and Beyond,” told me. “You just do it. You’re playing out a biological program.” We yawn unconsciously and we yawn spontaneously. We can’t yawn on command—and we sometimes can’t stop ourselves from letting out a big yawn, even at the most inopportune times. (Case in point: Sasha Obama’s infamous yawn during her father’s 2013 Inaugural Address.) But what, precisely, are we accomplishing with all this yawning?

How large is Africa compared to the United States, or Western Europe? Most inhabitants of the latter places might guess it is a little larger, but few would have any idea of the scale of the difference. This has led German graphics designer Kai Krause to produce this map to shake people's perceptions a little.

Any attempt to map a spherical planet onto a flat map will involve distortions of size, shape or both. There is a passionate debate among cartographers about the best way to hang the world on a wall, but most agree that the most common maps we get our sense of the world from are very bad ways to do it. The problem is that these maps exaggerate the size of the countries at high  latitudes, and shrink places near the equator - leading to a perception that Europe is larger than South America, to pick just one example among many.

Africa, which spans the equator, fares particularly badly on these sorts of projections: Krause says, "Africa is so mind-numbingly immense, that it exceeds the common assumptions by just about anyone I ever met: it contains the entirety of the USA, all of China, India, as well as Japan and pretty much all of Europe as well - all combined!”  Some have argued that since people associate size with importance this encourages the already strong tendency of the world's wealthiest nations to disregard those who live in the tropics. 

The true size of ...

The English “please” is short for “if you please,” “if it pleases you to do this” — it is the same in most European languages (French si il vous plait, Spanish por favor). Its literal meaning is “you are under no obligation to do this.” “Hand me the salt. Not that I am saying that you have to!” This is not true; there is a social obligation, and it would be almost impossible not to comply. But etiquette largely consists of the exchange of polite fictions (to use less polite language, lies). When you ask someone to pass the salt, you are also giving them an order; by attaching the word “please,” you are saying that it is not an order. But, in fact, it is.

In English, “thank you” derives from “think,” it originally meant, “I will remember what you did for me” — which is usually not true either — but in other languages (the Portuguese obrigado is a good example) the standard term follows the form of the English “much obliged” — it actually does means “I am in your debt.” The French merci is even more graphic: it derives from “mercy,” as in begging for mercy; by saying it you are symbolically placing yourself in your benefactor”s power — since a debtor is, after all, a criminal.

One thing he learned early on is that not all errors are created equal. Not all false information goes on to become a false belief—that is, a more lasting state of incorrect knowledge—and not all false beliefs are difficult to correct. Take astronomy. If someone asked you to explain the relationship between the Earth and the sun, you might say something wrong: perhaps that the sun rotates around the Earth, rising in the east and setting in the west. A friend who understands astronomy may correct you. It’s no big deal; you simply change your belief. But imagine living in the time of Galileo, when understandings of the Earth-sun relationship were completely different, and when that view was tied closely to ideas of the nature of the world, the self, and religion. What would happen if Galileo tried to correct your belief?

Recently, a psychiatric study on first episodes of psychosis made front-page news. People seemed quite surprised by the finding: that lower doses of psychotropic drugs, when combined with individual psychotherapy, family education and a focus on social adaptation, resulted in decreased symptoms and increased wellness.

Recently, a psychiatric study on first episodes of psychosis made front-page news. People seemed quite surprised by the finding: that lower doses of psychotropic drugs, when combined with individual psychotherapy, family education and a focus on social adaptation, resulted in decreased symptoms and increased wellness. But the real surprise — and disappointment — was that this was considered so surprising.

But the real surprise — and disappointment — was that this was considered so surprising.

women” in 2013, Park Yu-ha wrote that she felt “a bit fearful” of how it might be received. After all, she said, it challenged “the common knowledge” about the wartime sex slaves.But even she was not prepared for the severity of the backlash.In February, a South Korean court ordered Ms. Park’s book, “Comfort Women of the Empire,” redacted in 34 sections where it found her guilty of defaming former comfort women with false facts. Ms. Park is also on trial on the criminal charge of defaming the aging women, widely accepted here as an inviolable symbol of Korea’s suffering under colonial rule by Japan and its need for historical justice, and she is being sued for defamation by some of the women themselves.

What, really, would Maria Montessori have made of this scene? The 30 or so children here were not down at the shore poking their fingers in the sand or running them along mossy stones or digging for hermit crabs. Instead they were all inside, alone or in groups of two or three, their faces a few inches from a screen, their hands doing things Montessori surely did not imagine. A couple of 3-year-old girls were leaning against a pair of French doors, reading an interactive story called Ten Giggly Gorillas and fighting over which ape to tickle next. A boy in a nearby corner had turned his fingertip into a red marker to draw an ugly picture of his older brother. On an old oak table at the front of the room, a giant stuffed Angry Bird beckoned the children to come and test out tablets loaded with dozens of new apps. Some of the chairs had pillows strapped to them, since an 18-month-old might not otherwise be able to reach the table, though she’d know how to swipe once she did.

If all art should be simple or if all art should be complex, the choice is clear. However, both of these norms seem absurd. Isn’t it obvious that some estimable art is simple and some is complex? True, there might be extremes that are beyond the pale; we are alienated by art that is far too complex and bored by art that is far too simple. However, between these two extremes there is a vast space of possibilities.

Science is different, at least according to many scientists. Albert Einstein spoke for many when he said that ‘it can scarcely be denied that the supreme goal of all theory is to make the irreducible basic elements as simple and as few as possible without having to surrender the adequate representation of a single datum of experience’. The search for simple theories, then, is a requirement of the scientific enterprise.

in the very worst manifestation it was actually kind of a weaponized mathematical algorithm. I was working in online advertising. Most of the people working online advertising represented it as a way of giving people opportunities. That’s true for most technologists, most educated people, most white people. On the other side of the spectrum you have poor people, who are being preyed upon, by the same kinds algorithms.

people need to stop trusting mathematics and they need to stop trusting black box algorithms. They need to start thinking to themselves. You know: Who owns this algorithm? What is their goal and is it aligned with mine? If they’re trying to profit off of me, probably the answer is no.

The tribunal that questioned me was not juridical, but ecclesiastical. I was not asked about my faith. (For the record, I’m an atheist.) I was not asked if it was a miracle. I was asked if I could explain it scientifically. I could not, though I had come armed for my testimony with the most up-to-date hematological literature, which showed that long survivals following relapses were not seen.

If we want to achieve true animal rights, we need to stop having pets.  That's according to Gary Francione, a law professor who deals with animal rights, and a longtime vegan. He says keeping pets is just another way of exploiting animals.  And he says pets shouldn't exist.

When two Syrian immigrant brothers refused to shake their female teacher’s hand this year, it ignited national outrage in Switzerland.This week, the authorities in the northern canton of Basel-Landschaft ruled that the students, who studied at a public school in the small town of Therwil, could not refuse to shake their teacher’s hand on religious grounds. They said that parents whose children refused to obey the longstanding tradition could be fined up to 5,000 Swiss francs, about $5,050.Shaking a teacher’s hand before and after class is part of Switzerland’s social fabric, and is considered an important sign of politeness and respect.

Jewish émigrés from the former Soviet Union tell inconsistent stories. What does this say about the nature of memory?

“Students who already believe they are not as academically successful as their more affluent peers, will further internalize defeat,” Carol Burris, a principal from Rockville Centre, wrote in the Washington Post last summer, calling on policymakers to “re-examine their belief that college readiness is achieved by attaining a score on a test, and its corollary—that is possible to create college readiness score thresholds for eight year olds.” This week, teachers at International High School at Prospect Heights, which serves a population of recently arrived immigrants from non-English-speaking countries, announced that they would not administer an assessment required by the city. A pre-test in the fall “was a traumatic and demoralizing experience for students,” a statement issued by the teachers said. “Many students, after asking for help that teachers were not allowed to give, simply put their heads down for the duration. Some students even cried.”