Deserts are found where there is little rainfall or where rain for a whole year falls in only a few weeks' time. Ten inches of rain may be enough for many plants to survive if the rain is spread throughout the year. If it falls within one or two months and the rest of the year is dry, those plants may die and a desert may form.

    Sand begins as tiny pieces of rock that get smaller and smaller as wind and weather wear them down. Sand dunes (沙丘) are formed as winds move the sand across the desert. Bit by bit, the dunes grow over the years, always moving with the winds and changing the shape. Most of them are only a few feet tall, but they can grow to be several hundred feet high.

There is, however, much more to a desert than sand. In the deserts of the southwestern United States, cliffs (悬崖) and deep valleys were formed from thick mud that once lay under a sea more than millions of years ago. Over the centuries, the water dried up. Wind, sand, rain, heat and cold all wore away at the remaining rocks. The faces of the desert mountains are always changing –-very, very slowly —as these forces of nature continue to work on the rock.

    Most deserts have a surprising variety of life. There are plants, animals and insects that have adapted to life in the desert. During the heat of the day a visitor may see very few signs of living things, but as the air begins to cool in the evening, the desert comes to life. As the sun begins to rise again in the sky, the desert once again becomes quiet and lonely.

    It seems that technology could be changing the places where we live. A project conducted by Johann Siau, a senior lecturer at the University of Hertfordshire's School of Engineering and Technology, has built on the university's InterHome project aimed to create a home that supervises people living at home who are weak or elderly.

    “We've developed a wristband type of device（装罝）,” said Johann Siau, “which allows us to monitor the condition of an elderly person, or whoever is wearing the device. It allows us to collect data of a person to see if the person has fallen or is away from where they are supposed to be. It connects an elderly person with an assisted living type of device with the InterHome.” The assisted living project is part of the university's wider InterHome project, which is the development of a smart house. The house stores the usage patterns of the person living there and can adapt to make it use as little energy as possible. Connecting the two together and building the service element（元素）allow us to introduce the assisted living idea to care for the elderly. It's very important that these technologies are there to help and support rather than to replace any of the existing services.

    The InterHome is not just a prototype（样品）or a vehicle for research. It's a study tool to help students from different scientific backgrounds learn about and develop technology. The InterHome combines the latest broadband technology, mobile data and communication. Researchers and students make sure that all the technology works together. Students get experience by developing new hardware and software themselves. It requires a variety of skills from students—electronic engineers, computer students, design students and so on. “The present plan we are working on is a smart home project in Watford with some commercial companies, ” said Johann Siau. “We are looking at how a smarter home can provide extra value services.”

                                                                                         The University of Sheffield

    Back to its origin

    The University of Sheffield is a research university in the city of Sheffield in South Yorkshire, England. It is one of the original “red brick” universities, which are a group of top and famous old universities. The University of Sheffield was originally formed by the combination of three colleges. The Sheffield School of Medicine was founded in 1828, followed in 1879 by the opening of Firth College by Mark Firth, a steel manufacturer (制造商), to teach arts and science subjects. Firth College then helped to provide money for the opening of the Sheffield Technical School in 1884 to teach applied science. In 1897 the three institutions were joined together to form the University College of Sheffield, which in turn became the University of Sheffield by Royal Charter (特许) in 1905. This university is famous for its good education and boasts a number of Nobel Prize winners among its former students.

    More information

    System: The University has five departments: Arts and Humanities; Engineering; Pure Science; Social Sciences; Medicine, Dentistry and Health. Sheffield also has many research programs in fields including aerospace, environmental science, psychology, and biology.

    City show: Sheffield is a lively city in the north of England. Sheffield is known as the greenest city in Europe because of its 2 million trees. As a result, there are many parks and woods throughout the city and beyond. Sheffield is the greenest city in England with 150 woodlands and 50 public parks within the city. Once, in Sheffield, the folk hero—Robin Hood lived in Sherwood Forest with 150 of his loyal friends. And Charlotte Bronte, the English writer noted for her novel Jane Eyre was born in Sheffield.

    The Olympic Games are well known and always receive the world's attention, but there has been another little-known Olympic event in the UK for hundreds of years. And it's an event which some say helped start the Olympic movement in this country. The Cotswold Olimpicks take place every year on a Friday in spring. They are held in a village in England known as the Cotswold. It isn't clear when the first event took place but some say it was as early as 1612.

    The Cotswold Olimpicks were the idea of a lawyer called Robert Dover but no one knows exactly why he organized the games. Some people say he wanted to encourage people to support their king and country. Another explanation is that Dover was keen (渴望的) to bring people together, in particular the rich and poor from the local community. Whatever the reason, the yearly games quickly became popular. People competed in familiar activities such as horse-racing, running, jumping, and wrestling; famous people of the time attended it and poets wrote about the celebrations. It is even said that Shakespeare mentioned the Cotswold Olimpicks in The Merry Wives of Windsor, though the play may have been written some time before the first games.

    As the Cotswold Olimpicks grew in popularity, a group of people known as the Puritans(清教徒) started to object to them for religious reasons, saying they encouraged bad behaviour. The games came to an end at the start of the English Civil War but in 1660 they were re-introduced. Over time they became more and more popular and there are records of 30, 000 people attending in one year. However, the games also attracted people who were more interested in the celebrations than the sporting events. Finally, they came to an end once again in 1852. However, this was not the end of the Cotswold Olimpicks. They were re-introduced again in 1966 and have since been recognized by the British Olympic Committee. Out of respect to their history, the modem games are watched over by a man dressed as Sir Robert Dover, riding on horseback and accompanied by a representative of King James I. Unlike the real Olympic Games, the Cotswold Olimpicks has only about two hours and they are followed by celebrations in the village.

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What Is a Superiority Complex?

A superiority complex is a behavior that suggests a person believes they are somehow superior to others. People with this complex often have overstated opinions of themselves. They may believe their abilities and achievements are better than those of others. However, the complex is believed to be a defense system for feelings of inadequacy that we all struggle with.

It is unclear why a person develops a superiority complex. Multiple incidents may be the root cause. For example, it may be the result of many failures. A person tries to complete a specific goal or achieve a desired outcome, but they don't succeed. They learn to handle the anxiety and stress of the failure by pretending to be above it. If they feel protected from their failures in this way, they may repeat this behavior in the future.

These behaviors can begin at an early age. When a child is learning to cope with challenges, they may learn to control feelings of inadequacy or fear. A superiority complex may develop. Likewise, it may also happen later in life. As teens and adults, a person has many opportunities to try new things among new people. If these situations are not successfully coped with, a person may develop a superiority complex to overcome feeling isolated.

People with a superiority complex are unlikely to be a threat to anyone's physical health. However, the continuous lies and overstatements can become annoying to others and may negatively affect relationships. It can push away other people in your life and shrink your social circle. If you are in a relationship with a person who you think has the issue, encourage the person to seek help. For example, never hesitate to reach out to mental health professionals. They can find healthier ways to deal with hidden feelings.