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red regularly sways behavior.

Red is a powerful color

It means luck in China, where bridal wear is red, mourning in parts of Africa and sex in Amsterdam's red-light district.

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.

Why is it easy for some people to learn to read, and difficult for others? It’s a tough question with a long history. We know that it’s not just about raw intelligence, nor is it wholly about repetition and dogged persistence. We also know that there are some conditions that, effort aside, can hold a child back. Socioeconomic status, for instance, has been reliably linked to reading achievement. And, regardless of background, children with lower general verbal ability and those who have difficulty with phonetic processing seem to struggle. But what underlies those differences? How do we learn to translate abstract symbols into meaningful sounds in the first place, and why are some children better at it than others?

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?

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.”

Decades after foot-binding was outlawed in China, a British photographer has met some of the last women subjected to the practice. It was with a sense of pride that Su Xi Rong revealed her feet to British photographer Jo Farrell. Her feet, bound from the age of seven, were so small that she had been renowned for their beauty. The 75-year-old is among the last remaining women in China to bear the effects of foot-binding, a practice first banned in 1912. Farrell met more than 50 of them over an eight-year period, and says she was surprised to find stories of pride and empowerment. Her book about the women is being launched at the British Council in Hong Kong on Monday. Foot-binding was believed to create a more beautiful foot and promote obedience.

By the late ‘90s, trolley problems had fallen out of fashion. Many philosophers questioned the value of the conclusions reached by analyzing a situation so bizarre and specific.

It wasn’t clear trolleys could ever find a life out of the pages of academic journals until one philosophy graduate student, Joshua Greene, revived them with the modern techniques of neuroscience.

The ethicist Peter Singer cites Greene's research to support some of his positions about why we ought to make greater sacrifices for problems that may seem distant, like world poverty or a disease raging halfway around the globe.

And so it’s not entirely surprising that minority students in Yale’s Silliman College were upset that their master, Nicholas Christakis, and his wife, Erika, the associate master, defended the rights of students to wear offensive costumes at a Halloween party, while counselling those bothered by such behavior to “look away.”

some of the tensions of the liberal-arts college’s role: namely, that they are not just heady intellectual spaces but also domestic spaces, where young people live in close contact and negotiate emotionally intricate issues, including racial hostility, sexual violence, and more. The whole point of the residential system—as distinct from Yale’s classrooms—is to be a safe space, or at least this is what Yale itself implies.

“Estimating the Reproducibility of Psychological Science,” from Science This paper isn’t really a study; it’s the outcome of an important movement in the field of psychology. In an effort called the Reproducibility Project, researchers at dozens of universities collaborated to replicate a hundred psychology studies that were initially conducted in 2008. They ended up replicating between a third and half of the studies. is that result bad or good? It’s inevitable that studies won’t always be replicable—if every study could be replicated, then every researcher would be right the first time; even legitimate findings can prove fragile when you try to repeat them. All the same, the paper concludes that there is “room for improvement” in psychology, especially when it comes to “cultural practices in scientific communication.” Specifically, the authors propose that “low-power research designs combined with publication bias favoring positive results together produce a literature with upwardly biased effect sizes.” In other words, the desire for novelty drives researchers to overestimate the conclusiveness of their own work. It’s a fascinating and valuable effort to make sure that psychology moves forward in the best way possible.

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.

That the Islamic State has made violent use of hIstory shouldn’t come as a surprIse. Perhaps more surprIsing Is that in all those places where a modern nation has been grafted onto an ancient culture, hIstory has returned with a vengeance. From Confucian China to BuddhIst Myanmar to Hindu India, hIstory has become the source of a fierce new conservatIsm that Is being used to curb freedoms of women and stoke hatred of minorities. As the ultimate source of legitimacy, hIstory has become a way for modernizing societies to procure the trappings of modernity while guarding themselves from its values.