Nervous suspects locked up in Britain's newest police station may feel relieved by a pleasant yellow color on the door . If they are close to confessing（供认）a crime , the blue on the wall might tip the balance .

    Gwent Police have abandoned colors such as greys and browns of the 20th-century police cell（牢房）and have used color psychology to decorate them .

    Ystrad Mynach station , which recently opened at a cost of ￡5 million has four cells with glass doors for prisoners who suffer from claustrophobia（幽闭恐怖症）. Designers have painted the frames yellow , which researchers say is a calming color . Other cells contain a royal blue line because psychologists believe that the color is likely to encourage truthfulness .

    The station has 31 cells , including 12 with a “live scan” system for drunken or disturbed prisoners , which detects the rise and fall of their chest . An alarm alerts officers if a prisoner's breathing stops and carries on ringing until the door is opened .

    Designers and psychologists have worked for years on color . Blue is said to suggest trust , efficiency , duty , logic , coolness , thinking and calm . It also suggests coldness and unfriendliness . It is thought that strong blues will stimulate clear thought and lighter , soft colors will calm the mind and aid concentration .

    Yellow is linked with confidence , self-respect and friendliness get the color wrong and it could cause fear , depression and anxiety , but the right yellow can lift spirits and self-respect .

    Ingrid Collins , a psychologist who specializes in the effects of color , said that color was an “ energy force ” . She said : “ Blue does enhance communication but I am not sure it would enhance truthful communication . ”

    Yellow , she said , affected the mind . Red , on the other hand , should never be considered because it could increase aggression . Mrs. Collins praised the designers for using colors in the cells . Gwent is not the first British force to experiment with color to calm down or persuade prisoners to co-operate , In the 1990s Strathclyde Police used pink in cells based on research carried out by the US Navy .

    It's such a happy-looking library, painted yellow, decorated with palm-tree stickers and sheltered from the Florida sun by its own roof. About the size of a microwave oven, it's pedestrian-friendly, too, waiting for book lovers next to a sidewalk in Palm Beach country Estates, along the northern boundary of Palm Beach Gardens.

    It's a library built with love.

  A year ago, shortly after Janey Henriksen saw a Brian Williams report about the Little Free Library organization, a Wisconsin-based nonprofit that aims to promote literacy and build a sense of community in a neighborhood by making books freely available, she announced to her family of four, “That's what we're going to do for our spring break!”

    Son Austin, now a 10th-grader, didn't see the point of building a library that resembles a mailbox. But Janey insisted, and husband Peter unwillingly got to work. The 51-year-old owner of a ship supply company modified a small wooden house that he'd built years earlier for daughter Abbie's toy horses, and made a door of glass.

    After adding the library's final touches (装点), the family hung a signboard on the front, instructing users to “take a book, return a book,” and making the Henriksen library, now one of several hundred like it nationwide and among more than 2,500 in the world, the only Little Free Library in Palm Beach County.

    They stocked it with 20 or so books they'd already read, a mix of science fiction, reference titles, novels and kids' favorites. “I told them, keep in mind that you might not see it again,” said Janey, a stay-at-home mom.

    Since then, the collection keeps replenishing (补充) itself, thanks to ongoing donations from borrowers. The library now gets an average of five visits a day.

    The project's best payoff, says Peter, are the thank-you notes left behind. “We had no idea in the beginning that it would be so popular.”  (317 words)

    People eat different things in different parts of the world.

    In south China we eat rice every day. Sometimes we eat it two or three times a day, for breakfast, lunch and supper. We usually eat it with fish, meat and vegetable.

    The Japanese eat rice, too. They also eat a lot of fish. They sometimes eat raw（生的）fish. In Africa, maize（玉米）is the most important food. People there make maize into flour（面粉）.From this flour they make different kinds of bread and cakes.

    In western（西方的）countries such as Britain, Australia and the U.S.A, the most important food is bread or potatoes. People there usually make their bread from wheat flour. They cook the potatoes in different ways. In England the most popular food is fish and chips. Sometimes people cook this food at home, but usually they buy it at the shop. They eat this food at home, in their work place, in the park or on the road. People call it "take-away" food.

Don't Drop the Ball

    Drop prevention risk assessment is really important. Everyone knows objects get dropped on work sites – there's nothing radical about that. In Australia, mining has the third highest fatality rate of any industry (4.4 fatalities per 100,000 workers in 2015), and in less well-documented areas like India the fatality rate is even higher. A lot of these fatalities come from dropped objects. It's worth trying to address this and work out just how big the risk is and where it comes from. At the end of the day, safety should be a priority in any industry and it should come as no surprise that addressing safety issues early can actually save money, long-term, for companies. It doesn't look good for a mining company if people are getting injured and equipment damaged from falling objects.

    The risks from dropped objects come from all sorts of areas; it's not just a matter of dropped tools. We're talking about sites characterized by a lot of activities, where all sorts of things can come loose or fall, whether its light fittings or objects like rocks falling off transporting belts. The risks are largely personal but are also financial: if a piece of equipment gets damaged it will need replacing. That's a pretty strong inspiration for companies to address these risks. In terms of frequency, here in Australia we're looking at around 18% of compensation claims coming from workers being hit by moving objects, but those are just the claims – the frequency is likely higher. Around 28% of deaths and injuries come from such incidents, too. As I said earlier, that's just Australia; some industries don't keep statistics, but I wouldn't be surprised to find other countries report comparable rates. That's a lot of accidents that could be prevented with adequate safety measures.

    It's important to take an active approach. It's a lot easier and cheaper to address these risks during the installation or maintenance phases by adding barriers to the inside of guard railings on walkways and transporting systems and adding nets to fixed devices. There are safety mechanisms available, but it's up to the companies to install them. It is a lot more efficient to add barriers right from the start rather than waiting for an accident and then thinking, "Should we be safer?", when they should have reduced these risks from the start.

    There is a cry of anger, and a tennis racket crashes to the ground. Jake, age 7, has just lost another match and is now in tears beside the court. His sister Sally, just one year older, looks at her mother and rolls her eyes: it is hard to enjoy winning when this keeps happening. It is not an unusual situation, and it is one reason why many people argue that competition is bad for children. However, the truth is that competitive games are a valuable preparation for adult life.

    Games with winners and losers give children the chance to experience life's ups and downs. Take Jake, for example. Even though he is unhappy now, he will probably be smiling and laughing with his sister in a few minutes, just like the last time this happened. Gradually, he will learn that the world does not end when you lose a game. Eventually, he may even be able to lose with a smile on his face. This is an important lesson. Not everything in life goes the way you would like, and it is important to know how to handle disappointment when it occurs.

    Children who participate in competitive games develop qualities that allow them to succeed in the complex world of adult life. For example, one of the missions of the Youth Olympic Games is to inspire young people to adopt the Olympic values, which include striving, determination and optimism. Competition creates a desire to do better. Children have to learn to succeed in a competitive atmosphere in order to take advantage of opportunities in the future. Although it is possible to win by chance occasionally, people who win and keep winning work very hard to achieve their success.

    On the negative side, there are those who will say that competition actually encourages some values, which does happen. It is common to see sports competition in which the desire to win has replaced the desire to have fun. You may even see very young children playing violently—like the superstars they see on TV. While the bad behavior of young athletes is troubling, the problem is not the competition itself. In reality, the blame lies with the professional players who are bad role models for these children. In fact, a recent study of young athletes by the school of Physical Health Education at the University of Wyoming showed an improvement in mood after exercise, athletes were less depressed or tense.

    Of course, there are parents who argue that children of Jake's age are too young to handle the pain of losing. But whether we like it or not, adult life is very competitive, and keeping children away from competition does them more harm than good. If children do not learn how to compete, they will be defeated by people who can. It is an unfortunate fact of life: whether ten or a hundred people want the same job, there can be only one winner. Wouldn't you want your child to be that person?

"Having the world at our fingertips" is a metaphor often used when we put our hands on information technology, like smartphones and computers. This is a good metaphor. But what is much better is how we use our hands to make things done.

Put one hand flat on a surface, palm down, and you might be able to make out the outline of 14 short bones in your thumb and fingers, in addition to 5 longer ones in your palm that are jointed to your wrist. These bones give each hand its rigid, knuckled structure. Together they're critical components of the anatomical （解剖的） architecture that allows your hand to move. At each of your fingertips there's an ever-growing, translucent plate of fibrous protein, otherwise known as a nail. Although they're nice for decoration, your nails protect and enhance your sensitivity to touch, too.

Imagine squeezing a piece of paper between your thumb and index finger, for example. We use this type of forceful pad-to-pad precision grasping without thinking about it, and literally in no time. Yet it was a breakthrough in human evolution. Other primates （灵长目动物） exhibit some kinds of precision grasps in the handling and use of objects, but not with the kind of efficiency that our hand does.

With a unique combination of traits, the human hand shaped history. No question, stone tools couldn't have become a keystone of human technology without hands that could do the job, along with a nervous （神经的） system that could regulate and coordinate the necessary signals. Even for those who have never attempted to make a spear tip or arrowhead from a rock, it's obvious that it would require strong grasps, constant rotation and repositioning, careful strikes with another hard object. And even for those who have done so, it can be a bloody business.

Of course, the most common object that people touch nowadays is a screen. And the tap-tap-tap movement of our fingers is a unique human ability, as no other primate can move their fingers as rapidly and independently as we do. Here again, we can thank the extraordinary human brain given that normal finger tapping requires the functional integrity of different parts of our central nervous system.