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This interactive timeline allows you to explore the evolution of English language and literature, from the 11th century to the present day. Scroll through decade by decade to investigate the richness and diversity of our poetry and prose, as well as the many social, cultural and political strands from which our language has been woven.

A puzzlement. Why, I wonder, are both these things true? There is an animal, a wee little thing, the size of a poppy seed, that lives in lakes and rivers and eats whatever flows through it; it's called a gastrotrich. It has an extremely short life. Hello, Goodbye, I'm Dead It hatches. Three days later, it's all grown up, with a fully adult body "complete with a mouth, a gut, sensory organs and a brain," says science writer Carl Zimmer. In 72 hours it's ready to make babies, and as soon as it does, it begins to shrivel, crumple ... and usually within a week, it's gone. Dead of old age. Sad, no? A seven-day life. But now comes the weird part. There's another very small animal (a little bigger than a gastrotrich) that also lives in freshwater ponds and lakes, also matures very quickly, also reproduces within three or four days. But, oh, my God, this one has a totally different life span (and when I say totally, I mean it's radically, wildly, unfathomably different) from a gastrotrich. It's a hydra. And what it does — or rather, what it doesn't do — is worthy of a motion picture. So we made one. Well, a little one. With my NPR colleague, science reporter Adam Cole, we're going to show you what science has learned about the hydra. Adam drew it, animated it, scored it, edited it. My only contribution was writing it with him, but what you are about to see is as close as science gets to a miracle.

In a project funded by the Office of Naval Research and coordinated under the Multidisciplinary University Research Initiative, scientists will explore the challenges of infusing autonomous robots with a sense for right, wrong, and the consequences of both. "Moral competence can be roughly thought about as the ability to learn, reason with, act upon, and talk about the laws and societal conventions on which humans tend to agree," says principal investigator Matthias Scheutz, professor of computer science at Tufts School of Engineering and director of the Human-Robot Interaction Laboratory (HRI Lab) at Tufts. "The question is whether machines -- or any other artificial system, for that matter -- can emulate and exercise these abilities." One scenario is a battlefield, he says. A robot medic responsible for helping wounded soldiers is ordered to transport urgently needed medication to a nearby field hospital. En route, it encounters a Marine with a fractured leg. Should the robot abort the mission to assist the injured? Will it? If the machine stops, a new set of questions arises. The robot assesses the soldier's physical state and determines that unless it applies traction, internal bleeding in the soldier's thigh could prove fatal. However, applying traction will cause intense pain. Is the robot morally permitted to cause the soldier pain, even if it's for the soldier's well-being?

I banned laptops in the classroom after it became common practice to carry them to school. When I created my “electronic etiquette policy” (as I call it in my syllabus), I was acting on a gut feeling based on personal experience. I’d always figured that, for the kinds of computer-science and math classes that I generally teach, which can have a significant theoretical component, any advantage that might be gained by having a machine at the ready, or available for the primary goal of taking notes, was negligible at best. We still haven’t made it easy to type notation-laden sentences, so the potential benefits were low. Meanwhile, the temptation for distraction was high. I know that I have a hard time staying on task when the option to check out at any momentary lull is available; I assumed that this must be true for my students, as well. Over time, a wealth of studies on students’ use of computers in the classroom has accumulated to support this intuition. Among the most famous is a landmark Cornell University study from 2003 called “The Laptop and the Lecture,” wherein half of a class was allowed unfettered access to their computers during a lecture while the other half was asked to keep their laptops closed. The experiment showed that, regardless of the kind or duration of the computer use, the disconnected students performed better on a post-lecture quiz. The message of the study aligns pretty well with the evidence that multitasking degrades task performance across the board.

The reason typos get through isn’t because we’re stupid or careless, it’s because what we’re doing is actually very smart, explains psychologist Tom Stafford, who studies typos of the University of Sheffield in the UK. “

As with all high level tasks, your brain generalizes simple, component parts (like turning letters into words and words into sentences) so it can focus on more complex tasks (like combining sentences into complex ideas). “We don’t catch every detail, we’re not like computers or NSA databases,” said Stafford. “Rather, we take in sensory information and combine it with what we expect, and we extract meaning.”

Unfortunately, that kind of instinctual feedback doesn’t exist in the editing process. When you’re proof reading, you are trying to trick your brain into pretending that it’s reading the thing for the first time. Stafford suggests that if you want to catch your own errors, you should try to make your work as unfamiliar as possible. Change the font or background color, or print it out and edit by hand. “Once you’ve learned something in a particular way, it’s hard to see the details without changing the visual form,” he said.

But now experts say a reliance on sat-navs and smartphone map apps is undermining map-reading skills. So here are five reasons why you should love maps and resist the easy attraction of the sat-nav.

Memorised music performance has interested scientists since as far back as the 1800s. One type of memory that musicians use is commonly called "muscle memory", but the memories are not actually stored in the muscles. Muscle memory instead refers to a type of "procedural" memory called motor learning, in which memories for movement patterns are acquired through repetition. Procedural memory is separate from other types of memory, such as our memory for events (autobiographical memory) or general knowledge about the world (semantic memory).

Scientists are beginning to tap into a wellspring of knowledge buried in the ancient stories of Australia's Aboriginal peoples. But the loss of indigenous languages could mean it is too late to learn from them.

Digital note-taking apps also leave their users only a finger-swipe away from e-mail or Candy Crush. An article on digital distraction in the June issue of The Harvard Business Review cites an estimate, by the Information Overload Research Group, that the problem is costing the U.S. economy nine hundred and ninety-seven billion dollars a year. “The digital world provides a lot of opportunity to waste a lot of time,” Allen said. A paper notebook, by contrast, is a walled garden, free from detours (except doodling), and requiring no learning curve. A growing body of research supports the idea that taking notes works better on paper than on laptops, in terms of comprehension, memorization, and other cognitive benefits.

If we’re going to rely on science as a means for reaching the truth — and it’s still the best tool we have — it’s important that we understand and respect just how difficult it is to get a rigorous result

Scientists’ overreliance on p-values has led at least one journal to decide it has had enough of them. In February, Basic and Applied Social Psychology announced that it will no longer publish p-values.

P-hacking and similar types of manipulations often arise from human biases. “You can do it in unconscious ways — I’ve done it in unconscious ways,” Simonsohn said. “You really believe your hypothesis and you get the data and there’s ambiguity about how to analyze it.” When the first analysis you try doesn’t spit out the result you want, you keep trying until you find one that does.

India, which has a literacy level well below the global average, has intensified its efforts in the field of education. In 2012 the country passed the Right to Education act which guarantees free and compulsory education for all children until the age of 14.However, some of the "facts" that have been found in textbooks around the country have given rise to speculation over what exactly passes for "education" in India.Glaring mistakes, downright lies and embellishments in textbooks are often featured in local media. A trend that is all the more worrying, given that India's education system promotes rote learning at the cost of analytical thinking.

There are people who can quickly memorize lists of thousands of numbers, the order of all the cards in a deck (or ten!), and much more. Science writer Joshua Foer describes the technique — called the memory palace — and shows off its most remarkable feature: anyone can learn how to use it, including him.

What's ConflictMap? This site aims to help shed light on wars and other armed conflicts around the globe. It contains summary information, links to more resources, and, most importantly, continuously updated lists of relevant news articles. We hope to make it easier to learn where wars are happening, who's involved, and what's going on right now, especially for smaller conflicts that may not be well covered in large media outlets. For those with a specific interest in conflicts, we hope to make it easier to follow the large volume of news in this field.

An elderly Chinese woman is only able to speak English after suffering a stroke, it's been reported. Liu Jaiyu, a 94-year-old former English teacher, has found herself no longer able to speak Chinese after parts of her brain relating to native language were damaged by a cerebral infarction, the local Hunan TV reports. Television pictures show her in bed, answering simple questions in English, which means the nursing staff are having to brush up on their language skills. "She greets me in the morning using English, after she's eaten her meals in the afternoon she uses English," one nurse tells the TV. "My memory of the language isn't too good, sometimes I don't understand what she's saying!" A doctor at the hospital says that Ms Liu is suffering from paralysis of all her limbs, as well as an "obstacle" to her language functions. "It seems the part of her brain responsible for her mother tongue has been damaged, however the part that uses English has been preserved," Li Yanfang says. There have been rare cases where patients develop a different accent after a stroke, migraine or head trauma. But Ms Liu's case appears different because she has apparently turned to an already-learned language. Experts say that the complex Chinese language requires the use of both parts of the brain, while English only uses one side.

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’.