Things to Do in Atlanta This Weekend

    Start the year off by experiencing something new this weekend! Here are our favorite events picked for this weekend.

The Glenn Miller Orchestra at Spivey Hall, Saturday

    The music of Glenn Miller has an unusual sound. Combine that with the perfect sound affects at Spivey Hall, and you get a concert that is sure to have your toes tapping. And really, who doesn't love Challanooga Choo Choo?

Garden Lights at the Atlanta Botanical Garden, Saturday

    This is the last night for this annual light show at the Atlanta Botanical Garden. It is particularly unusual that the magical sound of frogs in the conservatory(温室) is not from a recording. That magic is coming from the real frogs that live there. If it's no too crowded, stop along the way, close your eyes and just listen.

    Children's Workshop: Egyptian Hieroglyphs(象形文字), Saturday

   Does your child dream of becoming a historian when he grows up? If you answer “yes”, you will want to take him to the Michael C. Carlos Museum. Participants will learn how to read and write ancient Egyptian hieroglyphs from Egyptologist Annie Shanley. Children will have an opportunity to discover the meaning of hieroglyphs on tomb reliefs and statues.

Colin Mochrie at Dad's Garage Theatre, Saturday and Sunday

    Set the tone for a great 2017 with laughter. Colin Mochrie comes to Dad's Garage Theatre and brings his lightning-quick creativity and humor.

    If you want to look at all the events happening this weekend, check out our full events calendar.

    Some people think that as more and more people have televisions in their homes, fewer and fewer people will buy books and newspapers. Why read an article in the newspaper, when the TV news can bring you the information in a few minutes and with pictures? Why read the life story of a famous man, when a short television program can tell you all that you want to know?

    Television has not killed reading, however. Today, newspapers sell in very large numbers. And books of every kind are sold more than ever before. Books are still a cheap way to get information and enjoyment. Although some books with hard covers are expensive, many books are printed today as paperbacks (平装本), which are quite cheap. A paperback collection of short stories, for example, is always cheaper than an evening at the cinema or the theater, and you can keep a book for ever and read it many times.

    Books are a wonderful provider of knowledge and pleasure and some types of books should be in every home. Every home should have a good dictionary. A good encyclopedia, though expensive, is useful, too, because you can find information on any subject. Besides, you can have such books as history books, science textbooks, cookbooks, and collections of stories and poems. Then from time to time you can take a book of poems off your shelves and read the thoughts and feelings of your favorite poets.

    Children's lives have changed greatly over the last 50 years. But do they have a happier childhood than you or I did?

    It's difficult to look back on one's own childhood without some element of nostalgia (怀旧的). I have four brothers and sisters, and my memories are all about being with them. Playing board games on the living room floor, or spending days in the street with the other neighborhood children, racing up and down on our bikes, or exploring the nearby woods. My parents scarcely appear in these memories, except as providers either of meals or of severe blame after some particularly risky adventure.

    These days, in the UK at least, the nature of childhood has changed dramatically. Firstly, families are smaller, and there are far more only children. It is common for both parents to work outside the home and there is the feeling that there just isn't time to bring up a large family, or that no one could possibly afford to have more than one child. As a result, today's boys and girls spend much of their time alone. Another major change is that youngsters today tend to spend a huge amount of their free time at home, inside. More than anything this is due to the fact that parents worry far more than they used to about real or imagined dangers, so they wouldn't dream of letting their children play outside by themselves.

    Finally, the kind of toys children have and the way they play is totally different. Computer and video games have replaced the board games and more interesting activities of my childhood. The irony (令人啼笑皆非的事情) is that so many ways of playing games are called “interactive”. The fact that you can play electronic games on your own further increases the sense of loneliness felt by many young people today.

    Do these changes mean that children today have a less relaxing childhood than I had? I personally believe that they do, but perhaps every generation feels exactly the same.

    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.

    For several decades, there has been an organized campaign intended to produce distrust in science, funded by those whose interests are threatened by the findings of modern science. In response, scientists have tended to stress the success of science. After all, scientists have been right about most things, from the structure of the universe to the relativity of time and space.

    Stressing successes isn't wrong, but for many people it's not persuasive. An alternative answer to the question "Why trust science?" is that scientists use the so-called scientific method. But what is called the scientific method isn't what scientists actually do. Science is dynamic: new methods get invented; old ones get abandoned; and at any particular point, scientists can be found doing many different things. False theories sometimes lead to true results, so even if an experiment works, it doesn't prove that the theory it was designed to test is true.

    If there is no specific scientific method, then what is the basis for trust in science? The answer is the methods by which those claims are evaluated. A scientific claim is never accepted as true until it has gone through a long process of examination by fellow scientists. Scientists draft the initial version of a paper and then send it to colleagues for suggestions. Until this point, scientific feedback is typically fairly friendly. But the next step is different: the revised paper is submitted to a scientific journal, where things get a whole lot tougher. Editors deliberately send scientific papers to people who are not friends or colleagues of the authors, and the job of the reviewer is to find errors or other faults. We call this process "peer review" because the reviewers are scientific peers—experts in the same field—but they act in the role of a superior who has both the right and the responsibility to find fault. It is only after the reviewers and the editor are satisfied that any problems have been fixed that the paper will be printed in the journal and enters the body of "science."

    Some people argue that we should not trust science because scientists are "always changing their minds." While examples of truly settled science being overturned are far fewer than is sometimes claimed, they do exist. But the beauty of this scientific process is that science produces both creativity and stability. New observations, ideas, explanations and attempts to combine competing claims introduce creativity; transformative questioning leads to collective decisions and the stability of scientific knowledge. Scientists do change their minds in the face of new evidence, but this is a strength of science, not a weakness.

    People have been wondering why elephants do not develop cancer even though they have lifespans (寿命) that are similar to humans, jiving for around 50 to 70 years.

    Now scientists believe they know why. A team at the University of Chicago, US has found that elephants carry a large number of genes that stop tumors (肿瘤) developing. To be precise, they found 20 copies of an anti-tumor gene called TP53 in elephants. Most other species, including humans, only carry one copy.

    According to the research, the extra copies of the gene improved the animal's sensitivity to DNA damage, which lets the cells quickly kill themselves when damaged before they can go on to form deadly tumors.

    "An increased risk of developing cancer has stood in the way of the evolution of large body sizes in many animals," the study author Dr Vincent Lynch told The Guardian. If every living cell has the same chance of becoming cancerous (癌变的), large creatures with a long lifespan like whales and elephants should have a greater risk of developing cancer than humans and mice. But across species, the risk of cancer does not show a connection with body mass.

    This phenomenon was found by Oxford University scientist Richard Peto in the 1970s and later named "Peto's paradox (悖论)”". Biologists believe it results from larger animals using protection that many smaller animals do not. In the elephant's case, the making of TP53 is nature's way of keeping this species alive.

    The study also found that when the same genes were brought to life in mice, they had the same cancer resistance as elephants. This means researchers could use the discovery to develop new treatments that can help stop cancers spreading or even developing in the first place.

    "Nature has already figured out how to prevent cancer," said Joshua Schiffman, a biologist at the School of Medicine, University of Utah, US. "It's up to us to learn how different animals deal with the problem so that we can use those strategies to prevent cancer in people."