A team of engineers at Harvard University has been inspired by Nature to create the first robotic fly. The mechanical fly has become a platform for a series of new high-tech integrated systems. Designed to do what a fly does naturally, the tiny machine is the size of a fat housefly. Its mini wings allow it to stay in the air and perform controlled flight tasks.

    “It's extremely important for us to think about this as a whole system and not just the sum of a bunch of individual components (元件),” said Robert Wood, the Harvard engineering professor who has been working on the robotic fly project for over a decade. A few years ago, his team got the go-ahead to start piecing together the components. “The added difficulty with a project like this is that actually none of those components are off the shelf and so we have to develop them all on our own,” he said.

    They engineered a series of systems to start and drive the robotic fly. “The seemingly simple system which just moves the wings has a number of interdependencies on the individual components, each of which individually has to perform well, but then has to be matched well to everything it's connected to,” said Wood. The flight device was built into a set of power, computation, sensing and control systems. Wood says the success of the project proves that the flying robot with these tiny components can be built and manufactured.

    While this first robotic flyer is linked to a small, off-board power source, the goal is eventually to equip it with a built-in power source, so that it might someday perform data-gathering work at rescue sites, in farmers' fields or on the battlefield. “Basically it should be able to take off, land and fly around,” he said.

    Wood says the design offers a new way to study flight mechanics and control at insect-scale. Yet, the power, sensing and computation technologies on board could have much broader applications. “You can start thinking about using them to answer open scientific questions, you know, to study biology in ways that would be difficult with the animals, but using these robots instead,” he said. “So there are a lot of technologies and open interesting scientific questions that are really what drives us on a day to day basis.”

    Not every parent looks forward to the day when their child goes off to school. In fact some parents are not sending their children to school at all. Instead they are choosing to teach their children at home. This is called homeschooling. Parents, caregivers, or private tutors educate children individually at home instead of sending them off to be formally educated in public or private schools. In the U.S. only about three percent of children are homeschooled.

    There are many reasons why some parents choose to homeschool. One reason is that some parents do not feel their children are safe in school because of bullying (恃强凌弱). It is said that bullying is very common in the school. Other parents want their children's education to be based on their religion or moral beliefs. Yet other parents think the education in school is not good enough. Homeschooling is also seen as a choice for families that live in rural areas, and families that move frequently.

    There are many different ways to homeschool, and homeschooling allows parents to design lessons based on their children's needs. Families can purchase textbooks to use or create their own materials. Some parents follow a philosophy called unschooling, which allows a child to determine when and how they want to learn based on their natural ability. Some worry that homeschooling means students won't have opportunities to communicate with others.

    To solve this problem, some families have created activities, where a group of homeschooled students will learn and play together and participate in activities that would normally happen in school like field trips.

    Besides, being homeschooled doesn't mean a student cannot go to college. Most colleges accept homeschooled students. And the homeschooled students can get the same degrees, too.

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    New Year's resolutions(决心)have been around long enough that we all scent to stick to the same ones--hit the gym, lay off the candy, read more books, call your mother-regardless of whether we follow through with our intentions.

    While January 1st seems like the perfect time to have a new start again, exactly when people developed that mindset(思维模式)isn't common knowledge. It turns out that the modern belief of' a New Year's resolution isn't as old as you thought. According to many historians, the ancient Babylonians were the first group of people to make New Year's resolutions. However, instead of making a commitment to self improvement, they made a commitment to the gods to pay their debts and return any objects they had borrowed.

    An ancient Roman tradition from 46 B. C, bears even more likeness to modern resolutions. Emperor Julius Caesar declared January the month of Janus. Romans believed Janus looked backwards into the previous year and ahead into the future. In his honor, they made sacrifices to the god and promises of good behavior for the coining year.

    But the modern New Year's resolution didn't fully form until centuries later. The practice was common enough by the early 1800s. An article in 1802 states, "Statesmen have sworn to have no other objet in view than the good of their country. the physicians have determined to advise the use of medicine no more than is necessary, and to the very reasonable in their fees.”

    The first time “New Year's resolution" appeared as a phrase was in the January 1st issue of a Boston newspaper in 1813. “I believe there are a lot of people," the article goes, “with a serious determination of beginning the New Year with new resolutions and new behavior, and with the full belief that they shall accept punishment for all their former faults and wipe them away.

    So as you make (and possibly fail at) your New year's resolutions, know that you're in good company.

    More than 90 years has passed since Hollywood's official film organization first proposed plans to build its own museum. Those plans are finally becoming a reality, with the Academy Museum of Motion Pictures set to open in 2019.

    The project is underway at the site of a historic Los Angeles department store built in 1939. Museum officials say visitors will be able to “experience the magic of cinema” by learning about all parts of the film-making process.

    Film historian Kerry Brougher has been named directors of the museum. Brougher says the museum will include 12 million photographs and 80,000 screenplays as well as props（道具）, costumes and other objects from famous films. The Academy Museum will also feature Oscar statuettes（小雕像）donated by actors who won the awards.

    Brougher says the museum is designed to make visitors feel like they are in a movie, too, with many interactive experiences. “You won't necessarily know what's coming next, '' he adds. “You'll be in environments sometimes that make you feel like you've gone back to the past and that you're in the area that you're actually exploring.” He adds that visitors may even get the chance to walk down a red carpet and accept their own Academy Award.

    Currently, Hollywood only has a few possibilities for visitors. They can go along the Walk of Fame and visit movie studios or see the Dolby Theater, where the Oscars are presented. But beyond these, movie fans have limited possibilities.

    Eric Garcetti, the mayor of Los Angeles says the Academy Museum will provide visitors the chance to experience many different parts of the film industry all in one place. Garcetti notes the museum will also serve the hundreds of thousands of local people working in film-related businesses. He says they, too, will finally be able to visit a place that celebrates their own Hollywood movie industry.

    One of my all time favorite holiday destinations is the Gold Coast. With its beautiful beaches, mountain hinterland and theme parks, the variety from one location to another is fantastic! And it's also important that it's like a playground for my children.

    The Gold Coast certainly offers something for every member of our family. We all love heading down to the beach for an early morning swim or surf. The beaches feature some of the softest golden sand and pumping waves, making them ideal for surfing. Safety is important especially when I'm out with the kids, and I feel better knowing that lifeguards are continually on patrol（巡逻）. The long coast also offer the perfect setting for a leisurely walk at sunset-a favorite activity of mine.

    Then, of course, there's the bargain-hunting in the city's center. For shopping goers there are amazing shopping centers boutiques and the usual chain stores. I always pick up loads of goodies at Pacific Fair.

    The Gold Coast is popular for its theme parks-Sea World, Wamer Bros Movie World and Dream World. The seal and dolphin presentations at Sea World keep both children and adults on the edge of their seats as the sea creatures go through a series of complicated jumps, flips and rolls. It's great entertainment and an educational window to the underwater world for the kids. Our kids also enjoy meeting the characters at Movie World and watching how real movies are made.

    Night-time is equally fun, as we usually set off to find the best local restaurants and cafes. The mix of cultures and influences has given the Gold Coast a wide variety of choices, including modem Australian, Italian, Asian and seafood, although sometimes nothing beats fish and chips!

    A visit to the Gold Coast in the Sunshine State is worthwhile and fun.

    Sure, it's good to get along with your teacher because it makes the time you spend in the classroom more pleasant.

    And yes, it's good to get along with your teacher because, in general, it's smart to learn how to understand the different types of people you'll meet throughout your life

    "But really, there's one super-important reason why you should get along with your teacher. When you do, learning bursts right open," says Evelyn Vuko, a longtime teacher who writes an education column (专栏) called "Teacher Says" for the Washington Post newspaper.

    In fact, kids who get along with their teachers not only learn more, but they're more comfortable asking questions and getting extra help. This makes it easier to understand new material and do your best on tests. When you have this kind of relationship with a teacher, he or she can be someone to turn to with problems, such as problems with learning or school life like bullying.

    As a kid in a primary or middle school, you're at a wonderful stage in your life. You're like a sponge(海绵), able to absorb lots of new and exciting information. On top of that, you're able to think about all this information in new ways. Your teacher knows that, and, in most cases, is very excited to be the person who's giving you all that material and helping you make it. Remember, teachers are people, too, and they feel great if you're open to what they're teaching you. That's why they wanted to be teachers in the first place—to teach!

    Some kids may be able to learn in any situation, whether they like the teacher or not. But most kids are sensitive to the way they get along with the teacher, and if things aren't going well, they won't learn as well and won't enjoy being in class.