London's newest skyscraper (摩天大楼)is called the Shard and it cost about 430 million pounds to build. At a height of almost 310 metres, it is the tallest building in Europe. The Shard has completely changed the appearance of London. However, not everyone thinks that it is a change for the better.

    The Shard was designed by the famous Italian architect Renzo Piano. When he began designing the Shard for London, Piano wanted a very tall building that looked like a spire (尖顶)• He wanted the glass surfaces to reflect the sky and the city. The sides of the building aren't regular. So the building has an unusual shape. It looks like a very thin，sharp piece of broken glass. And that is how the building got the name: the Shard. Piano says that the spire shape of the Shard is part of a great London tradition. The shape reminds him of the spires of the churches of London or the tall masts (桅杆）of the ships that were once on the river Thames.

    The Shard has 87 floors. At the top, there is an observatory. At the moment the building is empty, but eventually there will be a five-star hotel. There will also be top quality restaurants, apartments and offices.

    Before building work began, a lot of people didn't want the Shard though the plans were approved. Now they are still unhappy about the Shard. Some critics say that such a tall skyscraper might be good in a city like New York, but not in London. They say that the best thing about the Shard is its spire shape. But that is the only thing. There is no decoration, only flat surfaces. The Egyptians did that 4,500 years ago. They also think the Shard is too big for London. It destroys the beauty of the city.

    Other critics don't like what the Shard seems to represent. They say that the Shard shows how London is becoming more unequal. Only very rich people can afford to buy the expensive private apartments and stay in the hotel. But the people who live near the Shard are among the poorest in London. So the Shard seems a symbol of the division in society between the very rich and the poor.

    The Shard now dominates the London skyline. It is not certain, however, that ordinary London citizens will ever accept it as a valuable addition to the city.

    As self-driving cars come closer to being common on American roads, much of the rhetoric（说辞）promoting them has to do with safety. About 40,000 people die on U.S. roads every year, and driver errors are linked to more than 90 percent of crashes. But many of the biggest advocates of autonomous（自动的）vehicles aren't car companies looking to improve the safety of their existing products. Huge support for itself-driving technologies is coming from Silicon Valley giants like Google and Apple.

    Those of us who have studied the relationship between technology and society tend to look more carefully at the motivations behind any technologically push. In this case, it's clear that in addition to addressing safety concerns, Silicon Valley firms have a strong incentive（动机）to create a new venue for increasing the use of their digital devices. Every minute people spend on their mobile phones provides data—and often money—to tech companies.

    At present, digital devices and driving are in conflict: There are serious, often fatal, consequences when drivers use smartphones to talk or to text. Regulators and safety advocates look to resolve dial conflict by banning phone use while driving – as has happened in almost every state. But the tech companies are taking a different approach. The obvious answer for Silicon Valley is creating an automobile in which continuous cellphone use no longer poses a threat to anyone.

    In recent years, the amount of time adults spend on their mobile devices has grown rapidly. At the moment, it's around four hours a day for the average adult in the U.S. However, that rapid growth is likely to slow down as people run out of time that's available for them up to use their devices. Unless, of course, there's a new block of time that suddenly opens up. The average American now spends about 48 minutes in a car every day, a sizeable opportunity for increased cellphone use.

    Sop as the public conversation around autonomous cars highlights the safety advantages, don't forget the tech industry's powerful desire for more profits, which goes well beyond simply saving us from ourselves.

    A Canadian man is asking forgiveness for a birdbrained thing he did 17 years ago: inadvertently（无心地） encouraging seagulls to trash his hotel room.

    Back in 2001, Burchill checked into the Fairmont Empress Hotel in Victoria, B.C, for a business meeting. He brought a small suitcase full of Brothers Pepperoni from his hometown to share with former Navy buddies in the area. But his room had no fridge so he opened a window to keep it cool. And then he went for a long walk. That was when things got messy. Really messy. The result was such a housekeeping nightmare that the hotel permanently banned him.

    “I remember walking down the long hall and opening the door to my room to find an entire flock of seagulls in my room. There must have been 40 of them and they had been eating pepperoni for a long time.” Burchill said.

    When he walked into the room, Burchill recalled he frightened the birds. They “immediately started flying around and crashing into things as they desperately tried to leave the room.” The result was a tornado of seagull feathers, pepperoni chunks and fairly large birds whipping around the room. The lamps were     falling. The curtains were trashed. The coffee tray was just disgusting.

    Eventually, Burchill called the front desk and requested help cleaning up the room. “I can still remember the look on the lady's face when she opened the door. ”said Burchill. A short time later, he received a note from the hotel saying he'd been banned for life.

    Recently, Burchill visited the hotel to apologize in person, in hope of making amends with the woman who had to clean the seagull-and-pepperoni-trashed room, but was told she was no longer there.

    “When I was talking to the people at the desk and the manager, they did say that they had heard this story from a long-term employee that works there,” said Burchill, “I was just kind of in and out. I didn't     want to overstay my welcome.” So he apologized and was forgiven. Burchill left them a present of about a pound of Brothers Pepperoni as a peace offering. It seemed to have worked.

The Truth About the Environment

    For many environmentalists, the world seems to be getting worse. They have developed a hit-list of our main fears: that natural resources are running out, that the population is ever growing, leaving less and less to eat, that species are becoming disappeared in huge numbers, and that the planet's air and water are becoming ever more polluted.

    But a quick look at the facts shows a different picture. First, energy and other natural resources have become more abundant, not less so. Second, more food is now produced per head of the world's population than at any time in history. Fewer people are starving. Third, although species are indeed becoming disappeared, only about 0.7% of them are dying out in the next 50 years, not 25-50%, as has so often been predicted. And finally, most forms of environmental pollution either appear to have been best cured not by limiting economic growth, but by accelerating it.

    Yet public opinion surveys suggest that many people hold the belief that environmental standards are declining and four factors seem to cause this gap between what they know and what the reality is.

    One is the unbalanced budget for scientific research. Scientific funding goes mainly to areas with many problems. That may be wise policy, but it will also create an impression that many more potential problems exist than is the case.

    Secondly, environmental groups need to be noticed by the mass media. They also need to keep the money rolling in. Understandably, perhaps, they sometimes overstate their arguments. In 1997, for example, the World Wide Fund for Nature issued a press release entitled: „Two thirds of the world's forests lost forever'. The truth turns out to be nearer 20%.

    A third source of confusion is the attitude of the media. People are extremely more curious about bad news than good. Newspapers and broadcasters are there to provide what the public wants: That, however, can lead to significant misunderstanding. An example was that America came across EI Nino(厄尔尼诺) in 1997 and 1998. This climatic phenomenon was accused of breaking tourism, causing allergies, melting the ski-slopes, and causing 22 deaths. However, according to an article in the Bulletin of the American Meteorological Society, the damage was estimated at $4 billion but the benefits amounted to some $19 billion.

    The fourth factor is poor individual knowledge. People worry that the endless rise in the amount of things everyone throws away will cause the world to run out of places to dispose of waste. Yet, even if America's trash output continues to rise as it has done in the past, and even if the American population doubles by 2100, all the rubbish America produces through the entire 21st century will still take up only one 12,000th of the area of the entire United States.

    It is extremely important that we look at the facts if we want to make the best possible decisions for the future. It may be costly to be overly optimistic, but more costly still to be too pessimistic.

    Vinegar is great. It makes salad, fries and dumplings taste better, and you can even clean your windows with it. And now, according to scientists, it may even help the planet's population survive climate change.

    Researchers from the RIKEN Center for Sustainable Resource Science (CSRS) in Japan have found that growing plants in vinegar makes them more resistant to droughts. This could mean that in the future, worries about climate change affecting the world's supply of food will be much lower.

    The discovery was made after the researchers studied the Arabidopsis, a plant known for its ability to survive in dry weather. It was found that when the plant was placed in drought-like conditions, it produced a chemical called acetate(醋酸盐)—the main component of vinegar.

    After discovering this, the scientists experimented further by adding acetate to the soil of other plants, and they stopped giving them water completely. After leaving the plants for 14 days, they found that the ones treated with acetate had survived, while the untreated plants had dried up and died. It's hoped that this simple method of survival could soon be used to help farmers in dry countries keep their crops alive.

    Jong Myong Kim, co-author of the study, tells Popular Science magazine that he's already been in touch with people all over the world who are interested in trying this simple and cost-effective method out for themselves from flower growing companies to amateur gardeners. Although at this point keeping thirsty plants alive isn't as easy as just pouring vinegar over them, Kim says he and his team are working on making the process as simple as possible. "Now we are trying to cooperate with some farmers, and also some companies, to make a method to apply this system," he says.

    And for those of us who always forget to ask our neighbors to water our plants when we go away, hopefully this means the end of returning home from a trip to find our favorite flowers have died.

Year-12 student Noah Little has already sat his first Chinese-speaking exam and said it was "the easiest exam I've ever done". That view is not surprising given that the Wagga Wagga High School student loves language—so much that he has built a Chinese translation app.

Noah said his love of language was encouraged by his community. "Wagga Wagga is a place full of people from different cultures, and sometimes when I meet new people who have trouble speaking English, I like to talk to them in their own language," he said. "I also have a few Chinese friends so I think it will be cool to talk to them in their language."

The 17-year-old started teaching himself Chinese around five years ago, before taking distance education courses at the start of Year 11. His language ability was also useful in his part-time job at a local Chinese restaurant, where he translated orders for the cooks and customers.

Noah said he also had a basic knowledge of seven other languages. It was while teaching himself the languages that Noah got the idea of the translation tool. "I decided to make my own app because there weren't many around—all the other apps were full of advertisements (广告) and the translation feature (专题节目) wasn't powerful enough," he said.

His app also includes a word of the day feature, lessons on how to write Chinese characters (汉字) and a news feed of important Chinese news.

He said learning computer programming to build the app had been like studying another language. With the end of school around the corner, Noah said he would like to pursue (追求) both his interest in computer programming and languages. "I'm planning to work for a year and save so I can go on to university as I really want to make a career (事业) out of one of these two topics."