People are being lured(引诱) onto Facebook with the promise of a fun, free service without realizing they're paying for it by giving up large amounts of personal information. Facebook then attempts to make money by selling their data to advertisers that want to send targeted messages.

    Most Facebook users don't realize this is happening. Even if they know what the company is up to, they still have no idea what they're paying for Facebook because people don't really know what their personal data is worth.

    The biggest problem, however, is that the company keeps changing the rules. Early on, you keep everything private. That was the great thing about Facebook—you could create your own little private network. Last year, the company changed its privacy rules so that many things—your city, your photo, your friends' names—were set, by default(默认) to be shared with everyone on the Internet.

    According to Facebook's vice-president Elliot Schrage, the company is simply making changes to improve its service, and if people don't share information, they have a “less satisfying experience”.

    Some critics think this is more about Facebook looking to make more money. Its original business model, which involved selling ads and putting them at the side of the page, totally failed. Who wants to look at ads when they're online connecting with their friends?

    The privacy issue has already landed Facebook in hot water in Washington. In April, Senator(议员) Charles Schumer called on Facebook to change its privacy policy. He also urged the Federal Trade Commission to set principles for social-networking sites. “I think the senator rightly communicated that we had not been clear about what the new products were and how people could choose to use them or not to use them，” Schrage admits.

    I suspect that whatever Facebook has done so far to invade our privacy is only the beginning, which is why I'm considering deactivating (撤销) my account. Facebook is a handy site, but I'm upset by the idea that my information is in the hands of people I don't know. That's too high a price to pay.

    The wedding tradition of “something old, something new, something borrowed and something blue” has been around for hundreds of years. The tradition of carrying or wearing one of each item is said to bring luck and fortune to the newly married couple. Have you ever stopped to think what the saying really means? What is its origin and what does each item represent?

    The original saying dates back to the Victoria times and states, “something old, something new, something borrowed, something blue and a silver sixpence in your shoe.”

    Something old   A bride may wear or carry something old to represent her continued ties to her family and her old life. Many brides wear a piece of family jewelry as their old item. Some brides wear the wedding dress worn by their mother or grandmother. In many cases, something old may also be something borrowed.

    Something new   Wearing something new is supposed to represent success and hope in the bride's new life and in her marriage. If the bride purchased her wedding dress new, it may represent her new item, but any item that is new may be used. Something “new” is usually the easiest kind to fill.

    Something borrowed   The borrowed item should be something borrowed from a friend that is happily married. It is said that their happiness will rub off on you and bring lasting happiness to your marriage. Some brides borrow an item of clothing, a piece of jewelry, a handkerchief or perhaps a beaded(带珠子的) purse.

    Something blue Wearing something blue dates back to ancient times when a blue wedding dress was worn to represent purity, fidelity and love.

    Silver sixpence   Placing a silver sixpence in the bride's left shoe is said to be a symbol of wealth. This not only refers to financial wealth, but also a wealth of happiness and joy throughout her married life. Since most brides probably don't even know what a sixpence is, this part of the tradition is not used very often in modern times. However, if a bride would like to include it in her wedding, she can purchase a silver sixpence from many companies that sell bridal supplies such as garters(袜带) and invitations.

    When I was 12, all I wanted was a signet(图章)ring. They were the “in” thing and it seemed every girl except me had one. On my 13th birthday, my Mum gave me a signet ring with my initials(姓名首字母) carved into it. I was in heaven.

    What made it even more special was that it was about the only thing that wasn't being “replaced”. We'd been burnt out in fires that swept through our area earlier that year and had lost everything—so most of the “new” stuff(东 西)we got was rally just to replace what we'd lost. But not my ring. My ring was new.

    Then, only one month later, I lost it. I took if off before bed and it was missing in the morning. I was sad and searched everywhere for it. But it seemed to have disappeared. Eventually, I gave up and stopped looking for it. And two years later, we sold the house and moved away.

    Years passed, and a couple of moves later, I was visiting my parents' when Mum told me that she had something for me. It wasn't my birthday, nor was it Easter or Christmas or any other gift-giving occasion. Mum noticed my questioning look. “ You'll recognize this one.,” she said smiling.

    Then she handed me a small ring box. I took it from her and opened it to find my beautiful signet ring inside. The family who had bought our house 13 years earlier had recently decided to do some redecorations, which included replacing the carpets. When they pulled the carpet up in my old bedroom, they found the ring. As it had my initials carved into it. They realized who owned the ring. They'd had it professionally cleaned up by a jeweler before sending it to my mother. And it still fits me.

    The Board Meeting had come to an end. Bob started to stand up and pushed the table, spilling his coffee over his notes. “How embarrassing! I am getting so clumsy in my old age.”

    Everyone had a good laugh, and soon we were all telling stories of our most embarrassing moments. It came around to Frank who sat quietly listening to the others.

    Frank began,“My Dad was a fisherman. He worked hard and would stay out until he caught enough to feed the family. Not just enough for our family, but also for his Mom and Dad and the other kids that were still at home.”

    Frank's voice dropped a bit. “When the weather was bad he would drive me to school. He would pull right up in front, and it seemed like everybody would be standing around and watching. Then he would lean over and give me a big kiss on the cheek and tell me to be a good boy. It was so embarrassing for me. Here I was twelve years old, and my Dad would lean over and kiss me good-bye!”

    He paused and then went on, “I remember the day I thought I was too old for a good-bye kiss. When we got to the school, he had his usual big smile. He started to lean toward me, but I put my hand up and said, 'No, Dad.' It was the first time I had ever talked to him that way, and he had this surprised look on his face. I said, 'Dad, I'm too old for a good-bye kiss. I'm too old for any kind of kiss.' My Dad looked at me for the longest time, and his eyes started to tear. I had never seen him cry. He turned. 'You're right,' he said. 'You are a big boy ... a man. I won't kiss you anymore.'”

    For the moment, the tears began to well up in Frank's eyes. “It wasn't long after that when my Dad went to sea and never came back.”

    I looked at Frank and saw that tears were running down his cheeks. Frank spoke again.“Guys, you don't know what I would give to have my dad give me just one more kiss on the cheek.”

    Antaretica's ice-white environment is going green and facing other unexpected threats. Scientists say that as temperatures go up in the polar region, invading (入侵) plants and insects, including the flies, cause a major conservation threat.

    More and more of these invaders, in the form of larvae (幼虫) or seeds, are surviving in coastal areas around the South Pole, where the temperature has risen by more than 3℃ over the past three decades. Glaciers have retreated, exposing more land which has been occupied by mosses that have been found to be growing more quickly and thickly than ever before-providing potential green homes for invaders.

    “The common house flies are a perfect example of the problem the Antarctic now faces from invading species,” said Dominic Hodgson of the British Antarctic Survey. “It comes in on ships, where it exists in kitchens and then at bases on the continent. It now has an increasing chance of surviving in the Antarctic as it warms up, and that is a worry. Insects like the house flies carry bacteria that could have a deadly effect on native lifeforms.”

    The Antarctic has several native species of insects. Together with its native mosses, these are now coming under increased threat from three major sources: visiting scientists, increasing numbers of tourists and global warming. However, it is global warming that is the main driver of the greening of Antarctica.

    In 2015, more than 38,000 tourists visited Antarctica. “These tourists are often very careful about not leaving waste or having mud. But they could carry seeds or larvae on their boots when they set foot on the Antarctic,” said Hodgson.

    More and more invasive insects and plants have been found on the Antarctic and have required removal. “the insects and plants that are native to Antarctica have survived these for thousands of years,” said Hodgson. “We have got to act now if we want to save the environment.”

    Sila Sutharat, a roasted chicken street vendor from Phetchaburi, Thailand, has come up with a unique way of cooking chicken. He uses 1, 000 mobile mirrors that concentrate sunlight into a strong beam(光束).

    Like most other street vendors, Sila used to cook his chicken over a charcoal(木炭)fire. But that all changed in 1997, when an ordinary observation gave him a great idea. One day, he was hit by the sunlight reflected off the window of a passing bus, and he felt its heat. "I could possibly change it into energy," Sila told himself. Then he started working on how to make use of the sunlight to cook his chicken.

    "They said that I'd gone mad, and that cooking chicken like this was impossible," Sila told reporters about how people reacted to his idea. But he didn't let their jokes get to him, and in the end he was the one who had the last laugh. He invented a panel featuring 1, 000 small mirrors that could be moved. It worked exactly as he predicted, allowing him to cook a 1.5 kg chicken in just 10 to 15 minutes. "After a long time passed by, they'd say: "Actually, you could do it," " Sila Sutharat recalls. Sila says that his invention can make the temperature go up to 312'C. This is why he always wears a special mask instead of a cook's hat when operating it.

    Sila's solar roaster is an unusual sight. It has attracted quite a few curious people who are eager to taste Sila's sun-cooked chicken. He's been using this cooking method for two decades now. And he says it's much better than traditional roasting methods. It is free, cooks all parts of the chicken, and best of all, it's 100% clean. Phetchaburi Rajabhat University thought Sila's idea was very good and useful, so they awarded him an honorary science degree.