How long has 3-D technology been around? Most of us might think of crowds of teenagers in a 1950's movie house watching Bwana Devil in 3-D. But 3-D technology made its first appearance on the scene in 1838 with the first stereoscope(体视镜). And the first actual 3-D movie was a 1903 film called Le Ariveed'un Train.

    Although it has such a long history, the technology has still remained based on one simple principle—to make 3-D effects you must find a way to project two slightly different pictures to each eye. Modern 3-D technology works by rapidly flickering(闪动)two versions of the movie and projecting them onto each eye. The brain does the rest of the work, combining the two pictures together into one and giving the show the appearance of depth, the third dimension.

    But does this exposure, especially long exposures, cause harm to the child's developing brain and visual system? Unfortunately, long-term studies on new flicker digital 3-D technology and children aren't yet available. We do not know if regular or daily 3-D viewing over years affects the developing visual system, although older 3-D methods basically do the same thing and are not considered harmful.

    The question of possible harm in modern 3-D use in TV is really based on two facts: the amount of time children will now be watching 3-D TV each day and the sensitivity some children show in reaction to 3-D viewing. It is difficult to make actual lab studies of longer term 3-D viewing in children because of the possible harm of the experiment. Researchers will have to wait until 3-D TV technology is already in the marketplace for a number of years, then check heavy 3-D TV watchers and compare them with non-watchers.

    With a 3-D television technology in the home, we will soon be able to answer the question of whether or not longer and more frequent periods of 3-D exposure cause more changes in the visual system. We may find that the bigger problem is the introduction of a new technology that leads to even more time spent on TV rather than playing outdoors.

    What is success? I am not going to try to explain success. I think a precise meaning is impossible! Is it winning a Gold Medal at the Olympic Games or winning Wimbledon, or being awarded a Nobel Prize? What else? I believe personal success could be anything at all- it does not have to involve public recognition. Who is more successful? A millionaire who is unhappy, or an unnoticed person, who has led a simple, quiet, sincere and happy life? The simplest definition of success, I think, is “to set out to do something and to succeed in doing it.

    The first step on the road to success starts with belief. Believe you can succeed and you will. Achieving success in whatever endeavor(努力)you choose may be the goal of life; because it gives you freedom from worry. Could that be?

    Success means different things to every one of us. Some people believe it is measured in financial term; others believe it is helping others rather than helping themselves. However, most people are motivated to a great extend by public recognition. How many people are really happy? How many people are really doing what they want to with their lives? Incidentally, to imagine makes us different from animals.

    Most important of all, I believe success is a matter of personal growth. If every day you are developing or growing just a millimeter, I believe one is successful. Just being a slightly better person each day for me is success. I've got a very long way to go them!

    Finally, always remember success is a process and is not simply a matter of arriving at a destination. It's the journey that really matters. Success is what you become in the often very difficult and dangerous journey down the river of life.

    On August 16, 1977, Elvis Presley saved me.

    The previous afternoon, I played with my six-year-old peers in Heather Peters^' backyard. I was enjoying my cake, when Heather asked me where my sleeping bag was. Only then did I know this party was a sleepover. The word “sleep-over” to a six-year-old bed-wetter is like what “cancer” means to an adult. But what if I told them I was a bed-wetter? At least with cancer, people gather at your bedside instead of running from it.

    I thought of a way to escape. I would explain that I needed my mother's permission to spend the nights. But as I called my Mom, Heather stood beside me to listen. She granted permission! Then I would be sleeping in the same living room as the other girls. I didn't bring my own pajamas (睡衣)，so Mrs. Peters offered me Heather's pajamas.

    As the other girls drifted into their sweet dreams, I tried to stay awake. “Do I need to go again? I'll stay up to go one more time.. .”.Of course , I finally fell asleep.

    The next morning , I was the first to wake up. I was warm! I lay in panic for what seemed like hours before the other girls started to wake up. I did the only thing I could do — I pretended that the bed-wetting didn't happen. I got up, took off Heather's pajamas and changed into my clothes like the other girls.

    Mrs. Peters walked into the room, and before she could say anything, she stepped right onto the pile of my wet pajamas. My heart stopped as I watched her face burn red. “WHO DID THIS?” She screamed, with a look so frightening. Should I answer? And that was when it happened — Mr. Peters came in and grabbed his wife , "Elvis Presley died!”

    The news of the King's death overtook Mrs. Peters, and I ,was spared. I got home without the other girls knowing what had happened.

    A man had a dream in which he was told where he could find fantastic wealth in a remote place. When he awoke, he immediately set off to find it. After a long journey full of danger and hardship, he arrived at the place in his dream. A local man who had heard about the dreamer's purpose laughed loud and long, saying that he had dreamed three times about a house where great treasure was buried under a fountain. It made the dreamer realize that the place the local was describing was his very own yard. He returned home and found the treasure.

    Like the man in this tale, the Chinese movie industry has been on a long journey to find its place in the world. In 1994, “The Fugitive” became the first major Hollywood film to be shown in the country in decades. Audiences were attracted by the movie's fast pace and sound effects, and it proved to be a great success. Since then, the Chinese film industry has balanced a complex (复杂的) relationship with Hollywood.

    Although there has been a sharp slowdown in China's box-office numbers—movie-ticket revenue rose just 3.7 percent in 2017 after growing by an average of 35 percent per year from 2011 to 2016~the country still has a huge movie market, with theaters continuing to expand into more rural areas and audiences proving that they have a strong desire for Hollywood action films. So much so that recently, Hollywood has even started to make movies with China in mind, casting Chinese movie stars with great box-office power and changing the plots of films to win over Chinese moviegoers.

    Many in China's film industry, from young scriptwriters (编剧) to senior critics, know Hollywood's dramatic structure all too well and support its styles. And many American offerings introduced in the Chinese market, regardless of quality, continue to do well among Chinese audiences, especially with young people, whose tastes and viewing habits have been shaped by Hollywood movies and TV shows. Like audiences in other developing countries, those in China tend to have a worldview filtered (过滤) by and focused on the United States, even though the United States doesn't mean the whole world and Hollywood isn't the world's only movie industry.

    Like an ocean that refuses no rivers, China's movie industry will continue to influence and allow itself to be influenced by its international counterparts (对应的人或物). China needs the United States, and the United States needs China. But at the moment, a large difference exists in that very few Chinese movies are able to enter the American market and attract a significant audience. Chinese audiences provide Hollywood with huge profits, but what does China's film industry gain in return?

Babies made from three people approved in UK

    Babies made from two women and one man have been approved by the UK's fertility regulator. The historic and controversial move is to prevent children from being born with deadly genetic diseases.

    Doctors in Newcastle—who developed the advanced form of In Vitro Fertilization or IVF (人工授精)—are expected to be the first to offer the procedure and have already appealed for donor eggs. The first such child could be born, at the earliest, by the end of 2017.

    Some families have lost multiple children to incurable mitochondrial (线粒体的) diseases, which can leave people with insufficient energy to keep their heart beating.

    The diseases are passed down from only the mother, so a technique using a donor egg as well as the mother's egg and father's sperm has been developed.

    The resulting child has a tiny amount of their DNA from the donor, but the procedure is legal and reviews say it is ethical (伦理的) and scientifically ready.

    "It is a decision of historic importance," said Sally Cheshire, chairwoman of the Human Fertilisation and Embryology Authority (HFEA). "I'm sure patients will be really pleased by what we've decided today."

    But some scientists have questioned the ethics of the technique, saying it could open the door to genetically-modified (转基因) 'designer' babies.

    The HFEA must approve every clinic and every patient before the procedure can take place. Three-person babies have been allowed only in cases where the risk of a child developing mitochondrial disease is very high.

    Prof Mary Herbert, from the Newcastle Fertility Centre, said, "It is enormously pleasing that our many years of research in this area can finally be applied to help families affected by these devastating diseases".

    "Now that we are moving forward towards clinical treatments, we will also need donors to donate eggs for use in treatment to prevent affected women transmitting disease to their children."

    Prof Sir Doug Turnbull, the director of the Welcome Centre for Mitochondrial Research at Newcastle University, said, "We are delighted by today's decision. We will also provide long-term follow up of any children born."

    NHS England has agreed to fund the treatment costs of the first trial of three-person IVF for those women who meet the HFEA criteria, as long as they agree to long-term follow up of their children after they are born.

The 2024 Peace Poetry Awards

The awards con test is to encourage people to explore peace and the human spirit. There are three age categories（类型）： Adult （19 & over）, Youth （13-18）, and Youth （12 & under）. The yearly con test is open to people worldwide. Your poems must be unpublished , and in English.

Deadline

All entries（参赛作品） must be submitted by July 30, 2024.

Entry Fee

Adults — $ 20

Youth （13-18） —— $ 10

Youth （12 & under） — no fee

Notes

● You may submit up to three unpublished poems. At most 30 lines per poem.

● Include name, address, email, telephone number, and age in the upper right-hand corner of each poem. For the Youth （12 & under） category, please also include your school's name and your teacher's name.

● Title each poem.

● Please keep copies of all entries as we will be unable to return.

● Email your entries to: www. peacepoetryawards. com. By the way, we have no other ways to receive your entry. Please click here to pay your entry fee online.

Awards

Adult Winner — $ 800

Youth （13 -18） Winner — $ 500

Youth （12 & under） Winner — $ 200

Winners will be announced by September 30, 2024 on our website. Winners will be informed by mail. Past years' winning poems can be found here.