The Speaker was the title of an eight-part television series. It was produced by the BBC in the UK. The aim of the series was to find Britain's best young speaker.

    Young people between the ages of 14 and 18 from across the country were invited to take part in The Speaker. Applicants included tough-talking teens, jokers, and shy, sensitive types. The one thing they had in common was a desire(渴望) to talk publicly and enthusiastically about what was important to them.

    Each applicant was asked to prepare and film a one-minute speech on any subject-from pop music to politics, from hooligans(小流氓) to homework. From all the entries received, 160 speakers were chosen by three judges. These speakers were invited to the next stage of regional auditions(海选), where they had to deliver their one-minute speech again, but this time in front of the judging panel(评审团) and an audience. Of the 160 speakers, only 20 were selected by the judges to go through to the next stage. They then had to give another speech on a subject they were given only seconds before making the speech. Some competitors also had to speak about a picture, again without any preparation.

    The final eight were then coached by celebrity mentors(指导老师) and given new challenges to help improve their speaking skills. Their speeches were judged by the judges and their mentor. By the last part in the series, which was shown at the end of April 2009, only three competitors remained. They were taken on a research trip to Malawi, where they found out first hand the effects of children's rights, ahead of their final speech. Duncan Harrison, a 14-year-old schoolboy from Bristol was chosen as the winner by the judges and mentors.

    When asked what makes a good speaker, the actor, director and teacher, Jeremy Stockwell, who was one of the judges on the series, said, “An effective speaker must know and trust who they are, what they have to say, and why they have to say u. Whether you're playing Hamlet, delivering a political message or presenting a school meeting, you must have a story to tell, a message to pass on and a clear sense of purpose.”

    A disease called “Panama” is threatening supplies of the world's most popular fruit—banana.Two years ago,the United Nations warned that the "Panama disease" could destroy "much of the world's banana crop."Since then,things have not gotten better.A new outbreak was discovered last year in Australia.The disease started in Asia in the 1990s, and later spread to Africa and the Middle East.

    World health officials worry the disease could travel to Latin America,one of the top banana producers in the world.All this is a big concern because bananas are an important source of income and nutrients for millions of people.They are grown in 135 tropical nations.The United Nations lists bananas as one of the most important foods, along with rice,wheat and corn.

    Randy Ploetz is a professor at the Tropical Research & Educational Center at the University of Florida.Many consider him as America's top banana expert.As he explained,Panama disease affects the Cavendish banana.The Cavendish is one of more than 500 kinds of bananas.But it is the most popular.

    “The industry is waking up to the problem,”Ploetz said.“They are pretty scared.”He was speaking Thursday by telephone from Miami,Florida,where he is among 1,000 people attending the International Banana Congress.The meeting was supposed to take place in Costa Rica,but was moved at the last minute.There were concerns banana growers could spread Panama disease from dirt collected on their shoes,Ploetz said.

    Ploetz said reports that Cavendish banana production could end are not correct.But if the disease spreads to Latin America,it could hurt the world's economy along with food supplies for millions of people.Still,he said there is reason for hope.Scientists in Australia are working on a genetically engineered banana that might not be at risk of getting Panama disease.

    An autonomous vehicle designed for making local commerce deliveries was uncovered by Nuro. The vehicle is about the height of an SW but far narrower than a typical car. The electric car features four outside compartments（暗格）—two on each side -to hold separate deliveries. Each compartment can be tailored to a specific use, such as cooking a pizza or refrigerating a package.

    “We can use self-driving technology to deliver anything, anytime, anywhere for basically all local goods and services,” Nuro co-founder Dave Ferguson said. “Consumers used to be okay with two-week paid shipping. It became two-week free delivery, followed by one week, two days, and the same day. Now same-day delivery isn't fast enough for some customers.”

    Nuro isn't alone in building robots for local commerce deliveries. Earlier this month, Toyota, a Japanese car company, uncovered a concept vehicle that could be used for package delivery. A handful of startups—including Starship Technologies, Marble and Dispatch—are testing small robots for deliveries on sidewalks.

    Nuro's vehicle will likely face legal hurdles. Fully autonomous vehicles without a test diver aren't legal in California today, and many companies have shifted testing o states where regulators are more welcoming of autonomous vehicles, such as Arizona.

    Nuro expects to face fewer challenges because it doesn't carry passengers. Nuro's narrow size may also be helpful when navigating streets and avoiding pedestrians. The vehicle isn't equipped with any special features to communicate with pedestrians or other road users. Some companies have tested and patented solutions such as digital screens that signal the car's next move. Ferguson said his team conducted studies and found that such techniques could confuse people. Nuro believes it's better to make sure the car performs predictably, so that human drivers know what to expect from it.

    “We feel by creating this new technology that's going to enable this last mile delivery, we're going to be creating new markets and doing things that previously weren't possible,” Ferguson said. “This is not swapping out jobs with robots. It's creating new markets. There will definitely be new employment opportunities.”

    Very few people enjoy going to the dentist, especially for a filling. Often fillings need to be replaced during the patients' lifetime. But is filling the cavity (蛀洞)with a foreign material really the best treatment? What if the tooth could repair itself with its own material–dentine(齿质)? Researchers at King's College London have found a process that may replace the traditional method.

    Paul Sharpe of King's College says a new treatment for cavities is simpler. It uses a drug that causes the tooth to fill in the hole naturally with dentine. "It involves putting a drug in the hole. It excites a natural process, which starts to occur anyway following the damage, so you can actually get the big hole repaired and the repair is a production of the natural material, the dentine."

    Usually a new drug requires repeated testing before it is approved for treatment. However, this drug that produces the re-growth in teeth has already been approved. It is a drug used to treat Alzheimer's disease and other disorders of the nervous system. Researchers explain that they use only a small amount and they use it locally. Usually that means the medicine is put directly on the affected area. It does not travel through the patient's blood.

    Nigel Carter heads Britain's Oral Health Foundation. He describes the new treatment as an exciting possibility for dental care. But Carter also has a warning. "Actually re-growing the tooth that has been lost with a cavity would be really a huge step forward. But, it's also important that we remember that we shouldn't be getting the cavity in the first place. We're talking about a totally preventable disease."

Need a Job This Summer?

    The provincial government and its partners offer many programs to help students find summer jobs. The deadlines and what you need to apply depend on the program.

    Not a student? Go to the government website to learn about programs and online tools available to help people under 30 build skills, find a job or start businesses all year round.

    Jobs for Youth

    If you are a teenager living in certain parts of the province, you could be eligible(符合条件) for this program, which provides eight weeks of paid employment along with training.

    Who is eligible: Youth 15-18 years old in select communities(社区).

    Summer Company

    Summer Company provides students with hands-on business training and awards of up to $3,000 to start and run their own summer businesses.

    Who is eligible: Students aged 15-29, returning to school in the fall.

    Stewardship Youth Ranger Program

    You could apply to be a Stewardship Youth Ranger and work on local natural resource management projects for eight weeks this summer.

    Who is eligible: Students aged 16 or 17 at time of hire, but not turning 18 before December 31 this year.

    Summer Employment Opportunities(机会)

    Through the Summer Employment Opportunities program, students are hired each year in a variety of summer positions across the Provincial Public Service, its related agencies and community groups.

    Who is eligible: Students aged 15 or older. Some positions require students to be 15 to 24 or up to 29 for persons with a disability.

Four Unmissable Cultural Attractions in Cambridge

Set on the east bank of the River Cam, Cambridge is surely one of England's most traditional and famous cities, where there is a world-famous university and great writers, thinkers and scholars. It comes as no surprise that this age-old centre of learning is home to a variety of splendid museums.

Fitzwilliam Museum

The Fitzwilliam, a museum at the University of Cambridge, houses about half a million artworks worldwide. Highlights include masterpieces by Titian and Canaletto, Anglo-Saxon jewelry (珠宝), and a wide range of priceless china, to name just a few. The museum is closed on Mondays.

Polar Museum

This small museum is based in the university's Scott Polar Research Institute, set up by a surviving member of Robert Falcon Scott's Terra Nova Expedition (探险) to Antarctica. It's packed with all manner of objects relating to polar exploration; sleeping bags, Inuit artworks and expedition diaries. The museum is open from Wednesdays to Saturdays; check the latest times before visiting.

Museum of Zoology

Celebrate the diversity of animal life at this university museum, which has some of the best natural history collections in the world. It's home to a variety of impressive exhibits, from an almost-70-foot fin whale to an African elephant. The specimens (标本) on display cover the whole animal kingdom. It is open from Tuesdays to Sundays.

Centre for Computing History

With a focus on the social and cultural impact of technology, this museum explores the incredible advances made in computing over the past few decades, as well as during the earlier days of the Information Age. It's a great day out with children, with mobile phones, calculators, game players and old-fashioned computers all on show. The museum is closed on Mondays and Tuesdays.