British English may have come first, but around the world, the American way of spelling is now far more popular.

    A recent examination of the English language shows that publications now largely use the American version swapping words like “centre” for “center” after the 1880s. To get data, researchers used Google's Ngram Viewer to analyze the words found in all English-language publications from 1800 to 2000. Entering a word into the viewer will show how frequently it occurs within the massive corpus(语料库)of books around the world.

    According to the data, this shift was further strengthened around World War I. Since then, English-language publications have preferred “gray” and “flavor” instead of “grey” and “flavour”. The American spelling has continued to grow over the years, with “liter” passing “liter” around 1900, and “center” becoming the more common choice over “centre” in 1913. “1913 marked a turning point in British spelling, as the American alternative became more frequently used in literature,” the post explains, in regard to “center”. This was just a year before the beginning of World War I, which many views as a key period in America's rise to superpower status.

    Though this switched again between 1920s and the late 1930s, the American, spelling took over for good around 1940, during which time the spelling “airplane” shifted dramatically over “aeroplane”.

    Ever since the middle of the 19th century, even the British Isles have slowly rejected the old spelling. The future is gray for British English.

    To foreigners Chinese food isn't a meal. It's an experience. Failing to order the right food and struggling with chopsticks are only parts of the adventure every time I sit down in a restaurant.

    In one of our favorite Sichuan restaurants, it took 3 waiters and 15 minutes for us to order only our drinks. I simply wanted water, but my dad wanted to try the fresh juice they had listed on the menu. There were two problems, however. There were neither pictures nor English on the menu. After several hand gestures, he ended up ordering just a coca cola to simplify things.

    One of our most embarrassing moments was at Xiabuxiabu, a very famous hotpot chain. As soon as we walked in, the entire restaurant seemed to stare at us. Uncomfortable already, we had the most difficulty ordering our meal, since there were so many steps to the whole process. Fortunately, the waitress was very patient and successfully gave us our food. Although it was not the best food I had in Beijing, it was certainly entertaining dropping things into the boiling pot of soup. Once, I tried picking up a dumpling to show my father and dropped it onto his pants. I looked behind me, and people were laughing secretly at my chopstick skills.

    No matter how many difficulties we have regarding food, our experiences give the best stories to tell. The servers are always understanding of our situation and their friendliness is exceptional. They always greet us with a big smile even when they realize they have to clean up the noodles slipped through our clumsy chopsticks.

    The elephant was lying heavily on its side, fast asleep. A few dogs started barking at it. The elephant woke up in a terrible anger: it chased the dogs into the village where they ran for safety. That didn't stop the elephant. It destroyed a dozen houses and injured several people. The villagers were scared and angry. Then someone suggested calling Parbati, the elephant princess.

    Parbati Barua's father was a hunter of tigers and an elephant tamer. He taught Parbati to ride an elephant before she could even walk. He also taught her the dangerous art of the elephant roundup-how to catch wild elephants.

    Parbati hasn't always lived in the jungle. After a happy childhood hunting with her father, she was sent to a boarding school in the city. But Parbati never got used to being there and many years later she went back to her old life. "Life in the city is too dull. Catching elephants is an adventure and the excitement lasts for days after the chase," she says.

    But Parbati doesn't catch elephants just for fun."My work," she says," is to rescue man from the elephants, and to keep the elephants safe from man." And this is exactly what Parbati has been doing for many years. Increasingly, the Indian elephant is angry: for many years, illegal hunters have attacked it and its home in the jungle has been reduced to small pieces of land. It is now fighting back. Whenever wild elephants enter a tea garden or a village, Parbati is called to guide the animals back to the jungle before they can kill.

    The work of an elephant tamer also involves love and devotion. A good elephant tamer will spend hours a day singing love songs to a newly captured elephant."Eventually they grow to love their tamers and never forget them. They are also more loyal than humans," she said, as she climbed up one of her elephants and sat on the giant, happy animal. An elephant princess indeed!

    In the early decades of the United States, the agrarian(土地的) movement promoted the farmer as society's hero. In the minds of agrarian thinkers and writers, the farmer was a person on whose well-being the health of the new country depended. The period between the Revolution, which ended in 1783, and the Civil War, which ended in 1865, was the age of the farmer in the United States. Agrarian philosophers, represented most eloquently by Thomas Jefferson, celebrated farmers extravagantly for their supposed centrality in a good society, their political virtue, and their Superior morality. And virtually all policy makers, whether they subscribed to the tenets of the philosophy held by Jefferson or not, recognized agriculture as the key component of the American economy. Consequently, government at all levels worked to encourage farmers as a social group and agriculture as economic enterprise.

    Both the national and state governments developed transportation infrastructure, building canals, roads, bridges, and railroads, deepening harbors, and removing obstructions from navigable streams. The national government imported plant and animal varieties and launched exploring expeditions into prospective farmlands in the West. In addition, government trade policies facilitated the exporting of agricultural products.

    For their part, farmers seemed to meet the social expectations agrarian philosophers had for them, as their broader horizons and greater self-respect, both products of the Revolution, were reflected to some degree in their behavior. Farmers seemed to become more scientific, joining agricultural societies and reading the farm newspapers that sprang up throughout the country. They began using improved implements, tried new crops and pure animal breeds, and became more receptive to modern theories of soil improvement.

    They also responded to inducements by national and state governments. Farmers streamed to the West, filling frontier lands with stunning rapidity. But farmers responded less to the expectations of agrarians and government inducements than to growing market opportunities. European demand for food from the United States seemed insatiable. War, industrialization, and urbanization all kept demand high in Europe. United States cities and industries grew as well; even industries not directly related to farming thrived because of the market, money, and labor that agriculture provided.

A living robot has been created out of frog skin cells. Xenobots, named after the frog species Xenopus laevis that the cells come from, were first described last year. Now the team behind the robots has improved their design and demonstrated new capabilities.

To create the xenobots, Michael Levin at Tufts University in Massachusetts and his colleagues obtained tissue from 24-hour-old frog embryos after very small physical operation. Where the previous version relied on the contraction of heart muscle cells to move them forward by pushing off surfaces, these new xenobots swim around faster. They also live between three and seven days longer than their previous generation, which only lasted about seven days, and have the ability to sense their surroundings to some extent, turning red when exposed to blue light.

"The fundamental finding here is that when you free skin cells from their normal context, and you give them a chance to build other things than what they normally build," says Levin. "To me, one of the most exciting things here is that they are plastic. This idea that even normal cells, not genetically modified, are in fact capable of building something completely different."

Because they are created from cells, the xenobots eventually break apart and are totally biodegradable, says team member Douglas Blackiston, also at Tufts University. He therefore hopes that they can be used for biomedical and environmental applications.

Previous attempts at creating living robots, such as a wirelessly controlled cockroach, have involved dealing with live animals, raising ethical concerns. Xenobots differ from these because they are made entirely of living cells. "The approach here is maybe ethically the least problematic because everything starts with cells. They have no neurons, so it's not an animal," says Auke ljspeert at the Swiss Federal Institute of Technology at Lausanne, who wasn't involved in the research. "It's really cells, so I find it maybe the cleanest way."

In life, once on a path, we tend to follow it, for better or worse. What's sad is that even if it's the latter, we often accept it anyway because we are so used to the way things are that we don't even recognize that they could be different. This is a phenomenon psychologist call functional fixedness.

This classic experiment will give you an idea of how it works and a sense of whether you may have fallen into the same trap: People are given a box of tacks (大头钉) and some matches and asked to find a way to attach a candle to a wall so that it burns properly.

Typically, the subjects try tacking the candle to the wall or lighting it to fix it with melted wax. The psychologists had, of course, arranged it so that neither of these obvious approaches would work. The tacks are too short, and the paraffin (石蜡) doesn't stick to the wall. So how can you complete the task? The successful technique is to use the tack box as a candle-holder. You empty it, tack it to the wall. and stand the candle inside it. To think of that, you have to look beyond the box's usual role as a receptacle just for tacks and re-imagine it serving an entirely new purpose. That is difficult because we all suffer to one degree or another from functional fixedness.

The inability to think in new ways affects people in every corner of society. The political theorist Hannah Arendt coined the phrase" frozen thoughts" to describe deeply held ideas that we no longer question but should. In Arendt's eyes, the self- content reliance on such accepted "truths" also made people blind to ideas that didn't fit their worldview, even when there was plenty of evidence for them.

Frozen thinking has nothing to do with intelligence. She said," It can be found in highly intelligent people."