We once had a poster competition in our fifth grade art class.

    “You could win prizes,'' our teacher told us as she wrote the poster information on the blackboard. She passed out sheets of construction paper while continuing, “The first prize is ten dollars. You just have to make sure that the words on the blackboard appear somewhere on your poster.”

    We studied the board critically. Some of us looked with one eye and held up certain colors against the blackboard, rocking the sheets to the right or left while we conjured up our designs. Others twisted their hair around their fingers or chewed their erasers while deep in thought. We had plans for that ten-dollar grand prize, each and every one of us. I'm going to spend mine on candies, one hopeful would announce, while another practiced looking serious, wise and rich.

    Everyone in the class made a poster. Some of us used parts of those fancy paper napkins, while others used nothing but colored construction paper. Some of us used big designs, and some of us preferred to gather our art tidily down in one corner of our poster and let the space draw the viewer's attention to it. Some of us would wander past the good students' desks and then return to our own projects with a growing sense of hopelessness. It was yet another grown-up trick of the sort they seemed especially fond of, making all of us believe we had a fair chance, and then always — always — rewarding the same old winners.

    I believe I drew a sailboat, but I can't say that with any certainty. I made it. I admired it. I determined it to be the very best of all of the posters I had seen, and then I turned it in.

    Minutes passed.

    No one came along to give me the grand prize, and then someone distracted me, and I probably never would have thought about that poster again.

    I was still sitting at my desk, thinking, What poster? when the teacher gave me an envelope with a ten-dollar bill in it and everyone in the class applauded for me.

    Win a Family Vacation!

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    The sweepstakes（彩票）open to legal US citizens of the United States who are 21 years of age or older at the time of entry. Void（无效）where forbidden by law.

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    Welcome to the home page of the Photography World website. We offer a range of useful services for photographers and photography lovers.

    Camera Club

    Join our club and enjoy a range of benefits. You'll get invitations to our regular events, such as members' film shows, exhibitions and talks by experts. You can apply for Full membership, Associate membership or Junior membership. Full membership includes free entry to all events and 10% discount when ordering equipment online. Associate membership gives you half-price tickets to events. Junior membership (proof of age required) allows youngsters to enjoy the benefits of Full membership. Costs (per year)：Full membership 20, Associate 12, Junior 10. Most new members joined as the result of recommendations from current members.

    Advice Center

    Take advantage of our Advice Center. Ask our panel of experts your questions about cameras and photography. Whether you're looking for solutions to problems or fresh ideas for interesting photos, you'll get response here. Simply email your questions to advice@cameraclub.com or leave a recorded message on 0800-565656. We guarantee to send you a reply by email within five days. Please note that since we can't provide information about repairs to cameras, you should contact the manufacturer about these.

    Competition

    Our competition is held every year and is a great chance for new and experienced photographers to win one of our great prizes, which range from albums to keep your photos in to one-day courses or a set of state-of-the-art camera equipment. Entries can only be accepted from members. They can be sent in prints, on a CD or memory stick, or by email. Please note that photos can't be returned, so make sure you have copies. The topic — for example, wildlife,     transport, people — is announced each year here on the website when the competition opens.

    Nelson Mandela is respected and admired around the world. And to South Africans he is a superstar. He is a hero who shocked the world by fighting for peace between races, despite the 27 years he spent in the prison of the South Africa's white, racist regime (种族主义政权).

    Mandela who won the nation's first all-race elections after the fall of apartheid (种族隔离) in 1994, retired in 1999. But he remains as popular as ever. His popularity has inspired an entire national industry. His portrait (肖像) has appeared at many places, including on some goods. His face has appeared on a South African coin, and some business leaders hope to build a statue in his likeness—the Statue of Freedom. It would stand taller than New York's Statue of Liberty.

    “His popularity is similar to that of John F. Kennedy with US or Winston Churchill in Britain, but few politicians in his times have achieved his level of admiration,” said Tom Lodge, head of the political science department of the University of the Witwatersrand, “What a skilled performer Mandela has been throughout his political career! He's a very, very clever man.”

    However, he is far from perfect. Most articles for his birthday, which appeared in every major South African newspaper on the day, briefly mentioned that Mandela did have his shortcomings.

    Then they returned to their flowing praises. “Through the ages, the human race has had its icons (偶像)—men and women who rose above ordinary people to inspire their generations,” The Mail and Guardian Weekly said. “In our generation, the gods presented us Nelson Mandela.”

    I waited half an hour, set the board, and sat in the studio, reviewing my questions until the telephone lines flashed.

    "Hello?"

    "This is Connie Chung. I'm so sorry I'm late."

    Connie Chung was one of the only four women anchors（主播）to make it into the club of major evening network television news. For almost an hour we talked about the industry. When I asked if she ever had an instructor throughout her trials, she turned around and offered to instruct me. When I asked why she decided to do it, she simply replied, "Because you're good."

    That afternoon I rushed home and told my mother what had happened. Without looking up, she just said "Good for you." Hearing this, I felt a sense of loss.  Her consistent response always made me feel under-appreciated.

    Until then I had been searching for something that I would never get—that sense of love and acceptance in a house full of negativity（消极）.

    I knew I needed to get rid of all the negativity in my life first, so I packed my bags and walked out of the house, thinking a risk would allow me to open myself to the world again and receive all the positive energy that I needed.

    Then radio became my way of connecting with others. My ability to book high-level guests and celebrities（名人）was gradually recognized and eventually all the words of encouragement from past guests and colleagues helped me to re-build my confidence levels. "I can do this," I kept telling myself, and pushed even harder to find my next aim.

    People had faith in me, so I developed faith in myself. Their positive attitudes towards themselves and towards me helped me develop my own positive attitude, leading to productive interactions with celebrities and adding to my list of instructors.

    I may not have started life surrounded by positivity but I surely feel that I am surrounded by it now. It's amazing how positivity builds on itself.

    Attitudes toward new technologies often fall along generational lines. That is, generally, younger people tend to outnumber older people on the front end of a technological change. It is not always the case, though. When you look at attitudes toward driverless cars, there doesn't seem to be a clear generational divide. The public overall is split on whether they'd like to use a driverless car. In a study last year, of all people surveyed, 48 percent said they wanted to ride in one, while 50 percent did not.

    The fact that attitudes toward self-driving cars appear to be so steady across generations suggests how transformative the change to driverless cars could be. Not everyone wants a driverless car now-and no one can get one yet—but among those who are open to them, every age group is similarly involved.

    Actually, this isn't surprising. Whereas older generations are sometimes reluctant to adopt new technologies, driverless cars promise real value to these age groups in particular. Older adults, especially those with limited mobility or difficulty driving on their own are one of the classic use-cases for driverless cars.

    This is especially interesting when you consider that younger people are generally more interested in travel-related technologies than older ones.

    When it comes to driverless cars, differences in attitude are more pronounced based on factors not related to age. College graduates, for example, are particularly interested in driverless cars compared with those who have less education: 59 percent of college graduates said they would like to use a driverless car compared with 38 percent of those with a high-school diploma or less.

    Where a person lives matters, too. More people who lived in cities and suburbs said they wanted to try driverless cars than those who lived in rural areas.

    While there's reason to believe that interest in self-driving cars is going up across the board, a person's age will have little to do with how self-driving cars can become mainstream. Once driverless cars are actually available for sale, the early adopters will be the people who can afford to buy them.