Glacier Bay is one of the most famous parks in America, located in the state of Alaska. This park in the southeastern part of the state covers more than 1 million hectares of Alaskan wilderness. It includes mountains, glaciers (冰川), bays, and even rainforests. Glacier Bay supports hundreds of kinds of animals, including many species of birds, fish, bears, whales and sea lions.

    As its name suggests, much of Glacier Bay National Park is covered by glaciers. A glacier is a large area of ice that moves slowly down a slope (斜坡) or valley, or over a wide area of land. Glaciers cover more than 5,000 square kilometers of the park.

    Glacial ice has shaped the land over the last seven million years. The glaciers found in the park today are what remains from an ice advance known as the Little Ice Age. That period began about 4,000 years ago.

    During the Little Ice Age, the cold weather caused the ice to grow and advance. That situation continued until about 1,700s, when the climate began to warm. The higher temperatures caused the ice to start melting. That melting led the huge glacier to separate into more than 1,000 different glaciers.

    The extremely tall and jagged (参差不齐的) mountains seen in Glacier Bay National Park were formed by the ice advancing and then melting over time. The melting of the ice also created water that filled in and created the many fjords (峡湾) within the park. Fjords are narrow parts of the ocean that sit between cliffs or mountains.

    The huge amount of water from the melted ice killed off many kinds of plants. Vegetation returned to the area over the next 200 years. The regrowth in plants also brought back many animals to the land. This return of life to Glacier Bay is why it is sometimes called “a land reborn” by people.

    Norman Garmezy, a development psychologist at the University of Minnesota, met thousands of children in his four decades of research. A nine-year-old boy in particular stuck with him. He has an alcoholic mother and an absent father. But each day he would walk in to school with a smile on his face. He wanted to make sure that "no one would feel pity for him and no one would know his mother's incompetence.” The boy exhibited a quality Garmezy identified as “resilience”.

    Resilience presents a challenge for psychologists. People who are lucky enough to never experience any sort of adversity (逆境) won't know how resilient they are. It's only when they're faced with obstacles, stress, and other environmental threats that resilience, or the lack of it, comes out. Some give in and some conquer.

    Garmezy's work opened the door to the study of the elements that could enable an individual's success despite the challenges they faced. His research indicated that some elements had to do with luck, but quite large set of elements was psychological, and had to do with how the children responded to the environment. The resilient children had what psychologists call an “internal lens of control(内控点)”. They believed that they, and not their circumstances, affected their achievements. The resilient children saw themselves as the arrangers of their own fates.

    Ceorge Bonanno has been studying resilience for years at Columbia University's Teachers College. He found that some people are far better than others at dealing with adversity. This difference might come from perception(认知) whether they think of an event as traumatic(创伤), or as an opportunity to learn and grow. “Stressful” or “traumatic” events themselves don't have much predictive power when it comes to life outcomes. "Exposure to potentially traumatic events does not predict later functioning,” Bonanno said. "It's only predictive if there's a negative response.” In other words, living through adversity doesn't guarantee that you'll suffer going forward.

The good news is that positive perception can be taught. "We can make ourselves more or less easily hurt by how we think about things," Bonanno said. In research at Columbia, the neuroscientist Kevin Ochsner has shown that teaching people to think of adversity in different ways--to reframe it in positive terms when the initial response is negative, or in a less emotional way when the initial response is emotionally “hot”—changes how they experience and react to the adversity.

    Do you have trouble trying to create the next big idea? Sometimes the answer isn't to just force an idea out of your mind. Instead, you might want to try sitting back, relaxing and letting your mind wander. Yes, you heard that correctly. If you are in need of a new idea, try daydreaming.

    Researchers from the university of California, Santa Barbara, found an association between daydreaming and creative problem-solving. Their study includes having participants first do an "unusual-use task". They had to try to come up with as many different ways to use an object as they could.

    Then, the participants chose to do one of the following four things before doing the "unusual-use task" again: complete a difficult task; complete an easy task; take a 12-minute break; or skip the 12-minute break and move right on to the task exercise again.

    Surprisingly, the group that performed best was the one that completed the easy task. Many participants reported that they were daydreaming while performing the easy task. So the researchers believed that this daydreaming might have helped unlock their creativity.

    But how could daydreaming help the brain come up with creative ways? The answer is something known as "unconscious thought". Even when you are not actively working to solve a problem, it is still in the back of your mind. Your brain is still thinking about the problem, but in a much more subtle (不易察觉的) way.

    When you daydream, your mind is allowed to think in ways it normally would not. Because it is free of control, it can create completely new and out-of-the-box ideas.

    Great ideas never come easily, but that does not mean you always have to work hard to get them. Feel free to do what you want and let your mind wander.

Be careful on January 8^th — It's officially the most dangerous day of the year. The insurance company Hyperion has studied accident statistics(统计数字) and has found that there are more accidents on January 8^th than on any other day.

    Accidents are certainly more likely to happen at particular times of the year. One general rule is that more accidents happen in winter months, because risk increases in bad weather. In 2004 and 2005 Hyperion found that the worst day was January 8^th, with 298 accidents reported to them. March 3^rd was the safest day, with only 89 reports. Six of the ten worst days for driving were in January.

    It's clear that icy and snowy conditions are dangerous, but some other statistics are puzzling. A British Medical Journal report in 2001, for example, found that hospital admissions(住院) were always higher than usual on Friday the 13^th.

But it is not only when Friday falls on the 13^th that it is a dangerous day. Four of the top ten worst days for accidents last year were Fridays — perhaps because everyone is rushing home for the weekend — while Thursdays are the safest day of the week.

At what time of the day is an accident most likely to happen? The Health and Safety Authority found that people are most likely to have an accident at 11.00 a.m., while the safest time of day is between 4.00 and 5.00 a.m. — probably because most people are in bed!

    Finally, good news for Harry Potter fans. Doctors at the John Radcliffe Hospital in Oxford noted that fewer children were in hospital on the weekend when Harry Potter books were available to the public. Casualties(伤亡人员) fell by over 50% when the last two books went on sale. So if you want to be really safe, you should read a Harry Potter book in bed, at around 5.00 on a Thursday morning, in summer.

    Languages have been coming and going for thousands of years, but in recent times there has been less coming and a lot more going. When the world was still populated by hunter-gatherers, small, tightly knit(联系) groups developed their own patterns of speech, independent of each other. Some language experts believe that 10,000 years ago, when the world had just five to ten million people, they spoke perhaps 12,000 languages between them.

    Soon afterwards, many of those people started settling down to become farmers, and their languages too became more settled and fewer in number. In recent centuries, trade, industrialization, the development of the nation-state and the spread of universal compulsory education, especially globalization and better communications in the past few decades, all have caused many languages to disappear, and dominant languages such as English, Spanish and Chinese are increasingly taking over.

    At present, the world has about 6,800 languages. The distribution of these languages is hugely uneven. The general rule is that mild zones have fewer languages spoken by many people while hot, wet zones have more, often spoken by small numbers. Europe has only around 200 Languages: the Americas about 1,000, Africa 2,400; and Asia and the Pacific perhaps 3,200, of which New Guinea alone accounts for well over 800. The median number(中位数) of speakers is a mere 6,000, which means that half the world's languages are spoken by fewer people than that.

    Now over 400 of the total of 6,800 languages are close to extinction(消亡), with only a few elderly speakers left. None of these seems to have chances of survival.

    One of the most famous buildings in the United States is Carnegie Hall, the home of classical and popular music concerts in New York. Carnegie Hall is known not just for its beauty and history, but also for its amazing sound. It has been said that the hall itself is an instrument. It takes the music and makes it larger than life.

    Carnegie Hall is named after Andrew Carnegie, who paid for its construction. Construction on Carnegie Hall began in 1890 and the official opening night was on May 5, 1891.

    The hall was owned by the Carnegie family until 1924 when it was sold to Robert E. Simon. The building became very old and in 1960, the new owner made plans to destroy it and build an office block. Isaac Stem led a group of people who fought to save Carnegie Hall and finally, the city of New York bought it for $5 million. It was then fixed up between 1983 and 1995.

    Advertisements and stories in newspapers about how Carnegie Hall needed help to recover its history led people to send in old concert programmes and information from all over the world. Over 12,000 concert programmes were received and with these it was possible to make a proper record of Carnegie Hall's concert history.

Carnegie Hall is actually made up of several different halls, but the Main Hall, now called the Isaac Stern Hall, is the most famous. The hall itself can hold an audience of 2,804 in five levels of seating.

    Because the best and most famous musicians of all time have played at Carnegie Hall, it is the dream of most musicians who want to be great to play there. This has led to a very old joke which is now part of Carnegie Hall's history. Question: "How do I get to Carnegie Hall?" Answer: "Practise, practise, practise."