Thankfully, most of this Jew-targeted hatred takes the form of verbal aggression rather than physical violence. But because many critics of Israel make no distinction between citizens of the Jewish state and the worldwide Jewish community, the J-word has been the focus. You won't see "Kill Israelis" scrawled on London synagogue walls. What you see on walls is "Kill the Jews", and on banners "Hitler was Right". And this brings me back to the point about the complexity of anti-Semitism today. It is always around and in the end it is focused primarily on the J-word, in the same way that another form of racism is focused on the N-word. Those on the receiving end find their lives shaped by it. Certainly my life, my sense of myself, has been shaped by the casual anti-Semitism that I have encountered for more than half a century. The first time I was called a "Jew" with malicious intent was September 1958 in the playground of Belmont Hills Elementary School, in the suburbs of Philadelphia. It came as a surprise. I was eight years old and up until that time had been living in New York City where everyone I encountered was Jewish. Until that moment, the word "Jew" had simply been one of the words and phrases - like "Mike", "son" and "114 East 90th Street" - whose meanings were slowly building up into a sense of who I was.

Turn on the radio in France in 1951 and you might have heard contributors extol the benefits of parents smacking their children. "I don't like slapping the face," one commentator says. "Slapping can harm the ears and the eyes, especially if it's violent. But everybody knows that smacking the bottom is excellent for the circulation of the blood." At the time, few would have seen that advice as abusive. It was another three decades before Sweden became the first European country to make smacking children illegal. More than 20 others have followed suit, but France has held out against the changing tide of parenting, with staunch resolve. In the wake of the European ruling this week, articles have appeared in the French media with titles such as "Smacking: A French Passion", and contributors have lined up on online forums to advocate the benefits of "la fessee", as it's known here. "We were really surprised by the response," says Christine Hernandez, a writer for France's most popular parenting magazine, Parents. "Many of our readers said that smacking is part of educating children. It's astonishing that parents still think that it's a good way to teach children how to behave. They think they have to impose their authority on children from time to time - it's part of French traditional upbringing."

There is one clear difference, though: Iyer has not invented them. The definitions she illustrates – 60 so far, from 30 different languages – match The Meaning of Liff for absurdity, but all of them are real. There is komorebi, Japanese for ‘the sort of scattered dappled light effect that happens when sunlight shines in through trees’; or rire dans sa barbe, a French expression meaning ‘to laugh in your beard quietly while thinking about something that happened in the past’.

We tend to think of swear words as one entity, but they actually serve several distinct functions. Steven Pinker, in The Stuff of Thought, lists five different ways we can swear: “descriptively (Let’s fuck), idiomatically (It’s fucked up), abusively (Fuck you…!), emphatically (This is fucking amazing), and cathartically (Fuck!!!).” None of these functions require swearwords. In Bikol (a language of the Philippines), there’s a special anger vocabulary – many words have alternative words that refer to just the same thing but also mean you’re angry. In Luganda (an African language), you can make a word insulting just by changing its noun class prefix – from a class for persons to a class for certain kinds of objects, for instance. In Japanese, you can insult someone badly just by using an inappropriate form of ‘you’.

It was supposed to be a celebratory occasion, a high-profile performance of a piece given life by the orchestra that commissioned it — a young composer's music played by other young musicians. Instead, the performance scheduled for Sunday of Jonas Tarm's music at Carnegie Hall by the highly regarded New York Youth Symphony (NYYS) has been canceled after it came to the attention of the ensemble's administration that the piece contains a quotation from the Nazi "Horst Wessel Lied." Born in Estonia, Tarm is a 21-year-old composer studying at the New England Conservatory in Boston. In 2014, he won the "First Music" prize from the NYYS, which resulted in the commission of a piece to be played by the orchestra at Carnegie Hall. Within the 9-minute piece called, in Ukrainian, Marsh u Nebuttya (March to Oblivion), Tarm says he used two musical quotes, each about 45 seconds long. The first is the anthem of the Ukrainian Soviet Socialist Republic, the second is the Nazi anthem, the "Horst Wessel" song. Tarm maintains that a piece of music should not necessitate further verbal explication. As such, he did not volunteer to tell the NYYS he was making those musical quotations within his piece, nor did he provide any background or context about his artistic intentions to the orchestra.

A boy who dressed as a character from Fifty Shades of Grey was excluded from his school's World Book Day celebrations, according to his mother. Liam Scholes, 11, went to Sale High School as Christian Grey from the explicit novel, wearing a grey suit and carrying cable ties and an eye mask. His mother Nicola Scholes, a teacher, said the Greater Manchester school ruled the costume was "inappropriate" and excluded her son from photographs. The school is unavailable for comment. Ms Scholes said she feels Liam's outfit was actually more appropriate than some of the costumes worn by others. She said it was deemed "appropriate for a teacher to dress up as a serial killer" and "acceptable for kids to dress up as people that kill others" and "come in with [toy] guns".

Archaeologists and officials have expressed outrage about the bulldozing of the ancient Assyrian city of Nimrud by Islamic State militants in Iraq.

From Amie I first heard about Yitang Zhang, a solitary, part-time calculus teacher at the University of New Hampshire who received several prizes, including a MacArthur award in September, for solving a problem that had been open for more than a hundred and fifty years. The problem that Zhang chose, in 2010, is from number theory, a branch of pure mathematics. Pure mathematics, as opposed to applied mathematics, is done with no practical purposes in mind. It is as close to art and philosophy as it is to engineering. “My result is useless for industry,” Zhang said. The British mathematician G. H. Hardy wrote in 1940 that mathematics is, of “all the arts and sciences, the most austere and the most remote.” Bertrand Russell called it a refuge from “the dreary exile of the actual world.” Hardy believed emphatically in the precise aesthetics of math. A mathematical proof, such as Zhang produced, “should resemble a simple and clear-cut constellation,” he wrote, “not a scattered cluster in the Milky Way.” Edward Frenkel, a math professor at the University of California, Berkeley, says Zhang’s proof has “a renaissance beauty,” meaning that though it is deeply complex, its outlines are easily apprehended. The pursuit of beauty in pure mathematics is a tenet. Last year, neuroscientists in Great Britain discovered that the same part of the brain that is activated by art and music was activated in the brains of mathematicians when they looked at math they regarded as beautiful.

Earlier this year, two forensic psychologists—Julia Shaw, of the University of Bedfordshire, and Stephen Porter, of the University of British Columbia—upped the ante. Writing in the January issue of the journal Psychological Science, they described a method for implanting false memories, not of getting lost in childhood but of committing a crime in adolescence. They modelled their work on Loftus’s, sending questionnaires to each of their participant’s parents to gather background information. (Any past run-ins with the law would eliminate a student from the study.) Then they divided the students into two groups and told each a different kind of false story. One group was prompted to remember an emotional event, such as getting attacked by a dog. The other was prompted to remember a crime—an assault, for example—that led to an encounter with the police. At no time during the experiments were the participants allowed to communicate with their parents.

The director of a Russian museum at a Stalin-era prison camp says local officials have taken over the site and removed references to the Soviet dictator's crimes.

At a home in the Romanian city of Iași, Carlson measured cortisol levels in a group of children ranging from two months to three years old. The caregiver-to-child ratio was twenty to one, and most of the children had experienced severe neglect and sensory deprivation. Multiple times a day, Carlson took saliva samples, tracking how cortisol levels fluctuated in response to stressful events. The children, she found, were hormonally off kilter. Under normal conditions, cortisol peaks just before we wake up and then tapers off; in the leagăne infants, it peaked in the afternoon and remained elevated. Those levels, in turn, correlated with faltering performance on numerous cognitive and physical assessments. Then Carlson tried an intervention modelled on the work of Joseph Sparling, a child-development specialist, and the outcomes changed. When half of the orphans received more touching from more caregivers—an increase in hugs, holding, and the making of small adjustments to clothes and hair—their performance markedly improved. They grew bigger, stronger, and more responsive, both cognitively and emotionally, and they reacted better to stress.

The researchers - Peera Wongupparaj, Veena Kumari and Robin Morris at Kings College London - did not themselves ask anyone to sit an IQ test, but they analysed data from 405 previous studies. Altogether, they harvested IQ test data from more than 200,000 participants, captured over 64 years and from 48 countries. Focusing on one part of the IQ test, the Raven's Progressive Matrices, they found that on average intelligence has risen the equivalent of 20 IQ points since 1950. IQ tests are designed to ensure that the average result is always 100, so this is a significant jump.

A recent paper in the journal Cognition, for instance, quipped that if people were as bad at naming sights as they are at naming scents, “they would be diagnosed as aphasic and sent for medical help.” The paper quoted scattershot attempts by participants in a previous study to label the smell of lemon: “air freshener,” “bathroom freshener,” “magic marker,” “candy,” “lemon-fresh Pledge,” “some kind of fruit.” This sort of difficulty seems to have very little to do, however, with the nose’s actual capabilities. Last spring, an article in the journal Science reported that we are capable of discriminating more than a trillion different odors. (A biologist at Caltech subsequently disputed the finding, arguing that it contained mathematical errors, though he acknowledged the “richness of human olfactory experience.”) Whence, then, our bumbling translation of scent into speech?

Gerd Gigerenzer's test In 2006 and 2007 Gigerenzer gave a series of statistics workshops to gynaecologists, and kicked off every session with the same question: A 50-year-old woman, no symptoms, participates in routine mammography screening. She tests positive, is alarmed, and wants to know from you whether she has breast cancer for certain or what the chances are. Apart from the screening results, you know nothing else about this woman. How many women who test positive actually have breast cancer? What is the best answer? nine in 10 eight in 10 one in 10 one in 100 Gigerenzer then supplied the doctors with data about Western women of this age. (His figures were based on US studies from the 1990s, rounded up or down for simplicity - recent stats from Britain's National Health Service are slightly different.) The probability that a woman has breast cancer is 1% ("prevalence") If a woman has breast cancer, the probability that she tests positive is 90% ("sensitivity") If a woman does not have breast cancer, the probability that she nevertheless tests positive is 9% ("false alarm rate") In one session, almost half the gynaecologists said the woman's chance of having cancer was nine in 10. Only 21% said that the figure was one in 10 - which is the correct answer.

last month, Bill Gates released a video of one of the latest ventures funded by the Bill and Melinda Gates Foundation: the Omniprocessor, a Seattle-based processing plant that burns sewage to make clean drinking water. In the video, Gates raises a glass of water to his lips. Just five minutes ago, the caption explains, that water was human waste. Gates takes a sip. “It’s water,” he says. “Having studied the engineering behind it,” he writes, on the foundation’s blog, “I would happily drink it every day. It’s that safe.”

A newly published paper suggests that personality similarity affects teachers' estimation of student achievement. That is, how much you are like your teacher contributes to his or her feelings about you — and your abilities. "Astonishingly, little is known about the formation of teacher judgments and therefore about the biases in judgments," says Tobias Rausch, an author of the study and a research scientist at the Otto-Friedrich-Universität Bamberg. "However, research tells us that teacher judgments often are not accurate."

For example, a recent study from Israel showed that teachers gave girls lower grades on math tests when they knew their gender. And lots of researchers have looked at the importance of having teachers who share the racial and socioeconomic backgrounds of their students.

What is the sky worth? This sounds like a philosophical question, but it might become a more concrete one. A report released last week by the National Research Council called for research into reversing climate change through a process called albedo modification: reflecting sunlight away from earth by, for instance, spraying aerosols into the atmosphere. Such a process could, some say, change the appearance of the sky — and that in turn could affect everything from our physical health to the way we see ourselves. If albedo modification were actually implemented, Alan Robock, a professor of environmental sciences at Rutgers, told Joel Achenbach at The Washington Post: “You’d get whiter skies. People wouldn’t have blue skies anymore.” And, he added, “astronomers wouldn’t be happy, because you’d have a cloud up there permanently. It’d be hard to see the Milky Way anymore.”

One of the problems is that no narrative feature is going to be able to convey the absolute truth. Characters inevitably get conflated and information omitted.“I think if you have two hours to tell a story, you have to contract things, you have to make your point in ways that a documentary would make them differently,” says David Oyelowo, the British actor who portrays Martin Luther King Jr.

Today, prison design is a civic cause for some architects who specialize in criminal justice and care about humane design. There is a lot of research documenting how the right kinds of design reduce violence inside prisons and even recidivism. Architects can help ensure that prisons don’t succumb to our worst instincts — that they are not about spending the least amount of money to create the most horrendous places possible, in the name of vengeance — but promote rehabilitation and peace.Designing execution chambers is something else. They require their own deathly architecture. If architects refuse to design them, that doesn’t mean that they won’t be built, any more than the refusal by doctors and pharmaceutical companies to participate in executions has stopped executions from happening. But Ms. Dreiling said it herself: “Many, if not most, architects enter this profession because it is a calling. They believe they can make the world a better place, they believe they can enhance the lives of people on a daily basis, where they live, work and play.”

LYING may be an age-old part of politics, but it’s becoming easier to spot the fibs, fictions and falsehoods. A growing army of fact-checkers around the world is busy debunking falsehoods from presidents, prime ministers and pundits — and if their results are indicative, 2014 was a banner year. Some of the claims were so absurd that fact-checking groups honored them with awards, like Australia’s Golden Zombie and Italy’s Insane Whopper of the Year.Such lies are fun to read, but identifying them is serious business: Misinformation, unchecked, can turn elections, undermine public health efforts and even lead countries into war.