Discover

    Newsmagazine of science devoted to the wonders and stories of modern science, written for the educated general reader. Published by Disney Magazine Publishing Co., Discover tells many of the same stories professionals(专业人员) read in Scientific American. A truly delightful family science magazine, each issue(每期) brings to light new and newsworthy topics to make dinnertime and water-cooler conversations interesting.

    Cover Price: $59.88

    Price: $19.95($1.66/issue)

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    Issues: 12 issues/12 months

    Self

    Published by Conde Nast Publications Inc., Self is a handbook devoted to women's overall physical(身体的) and mental health. Every issue contains usable articles such as “Style Lab”, in which wearable clothes are mixed and matched on non-models and the “Eat-right Road Map”, with tips on how to eat properly.

    Cover Price: $35.86

    Price: $15.00($2.5/issue)

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    Issues: 6 issues/12 months

    InStyle

    InStyle is a guide(手册) to the lives and lifestyles of the world's famous people. The magazine covers the choices people make about their homes, their clothes and their free time activities. With photos and articles, it opens the door to these people's homes, families, parties and weddings, offering ideas about beauty, fitness and in general, lifestyles. Publisher: The Time Inc. Magazine Company.

    Cover Price: $47.88

    Price: $23.88($2.38/issue)

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    Issues: 10 issues/12 months

    Wired

    This magazine is designed for leaders in the field of information engineering, including top managers and professionals in the computer, business, design and education industries. Published by Conde Nast Publications Inc., Wired often carries articles on how technology changes people's lives.

    Cover Price: $59.40

    Price: $10.00($1.00/issue)

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    Issues: 10 issues/12months

    It was a cold winter. The wind blew all night and the snow was blinding. When morning came, my three children and I got up and made our way to the windows. As we looked out the window, we saw that the henhouse was gone. Our three hens had been blown away.

    I looked at the emptiness outside. Then I saw all three chickens sat around the edge of a white bucket. How was this violent wind not blowing them into the field beyond? I quickly pulled on long snow pants and heavy winter coat, wrapped a scarf and stuck my feet into very large boots .

    I shouted at the wind as it blew. I was alone, save for my children. They stared out the window into the vast white sea of snow, their eyes peeled for any sign of movement. Outside I heard the sound of my boots as I walked against the wind.

    The snow circling around me, I steadily made my way to the soft cluck-cluck-cluck sound my hens always made. When I reached them, I saw that their little feet were holding on to the edge of the bucket, heads bent forward and away from the wind. I gently lifted each hen and put it carefully into the warm inside. Then I began the freezing walk back to the small shed directly behind our house. One by one I laid my chickens on the cold floor, and they began to cluck softly.

    As I shut the shed doors, my eyes went directly to the window where my children were watching. They jumped up and down cheering, and so did I! I wasn't some dragon slayer (屠龙者) from a fairy tale. I was simply a mom, but the look on my children's faces told me that they thought I was a hero mom.

    Everyone is welcome to visit our city Los Angeles (LA). I am sure you can do many things in Los Angeles with your kids.

    Fun at the Beach

    Thanks to its almost perfect weather all through the year, a visit to the beach is one of the best things to do when in Los Angeles with your kids. While they enjoy themselves nearby, you can simply lie back and have a good rest in the sun.

    Trip to Disneyland

    A trip to the City of Angels with your little angels is incomplete (不完整的) without a visit to the Magic Kingdom. The joy they'll feel from being around all those Disney characters that they know and love will light up your day, too.

    Visit to the Museum

    If you want to turn your stay in LA into an educational one for your kids, you should visit the museum. Starting with the Natural History Museum of Los Angeles County to the California Science Center, or even the Kidspace Children's Museum in Pasadena, you have many choices. I'm sure a visit to all these places will make your kids smarter.

    Visit to the University Studios Hollywood

    Your kids could get to see interesting things from some of the most popular movies ever. From the theme park of Jurassic Park to Wisteria Lane from the TV play Desperate Housewives, the Universal Studios Hollywood is a place that we all find wonderful.

    Are you interested in higher education in the United States? The following advice might help you.

    College, University or Institute

    College and universities offer undergraduate degrees in arts and sciences. And both can help prepare young people to earn a living. But many colleges don't offer graduate studies. Universities are generally bigger, offer more programs and do more research. An institute of technology can offer a wide choice of programs and activities. Seventy-five percent of freshmen go there with a strong interest and involvement in the arts.

    The Application Process

    International admissions officers advise students to apply to at least three schools. You may be able to apply online and pay the application charge with a credit card, or by mail. You should study the websites of schools to find information about how and when to apply, how much it will cost and whether any financial aid is available.

    Get a Student Card

    If you request a visa for the first time, you will have to go to an American embassy or consulate(领事馆). You will need to bring a government form sent to you by your American school that shows you have been accepted. A consular official will also take your picture and your fingerprints. You will also need banking and tax records that show you have enough money to pay for your education.

    Financial Aid

    American schools provide aid, like scholarships, fellowships, to almost half of foreign graduate students, but only ten percent of undergraduates. But grants, which, unlike a loan, does not have to be paid.

    I can't remember the first time one of my children told me, "I hate you." I can, however, tell you that it still happens occasionally, but it doesn't bother me. As their father, I often say things that are unpopular. If they hate me once in a while, I know I'm doing a good job.

    There are three other words that I won't allow in my house, however. Last week, I was watching my older son play with a paper airplane. After he accidentally threw it into a wall and it came apart, his eyes welled up with tears.

    "I hate myself," he said. It wasn't the first time he'd said it, and I was concerned that he'd started to actually believe it.

    I knelt down next to him and made him look into my eyes. I told him that I never wanted to hear those words again, and that he needed to respect himself.

    The difference between your kid telling you they hate you and them saying they hate themselves is that, five minutes later, they've already forgotten they "hate you". Self-hate is much more potentially poisonous and for young people, it can linger into the rest of their life.

    Kids who start to believe they hate themselves sometimes struggle to form new friendships. As teenagers, they avoid the chance to connect with a potential love interest, because they assume they'll be rejected. And as adults, they might choose not to apply for the dream job because they assume it won't work out.

    I know this is true, because I didn't have a high opinion of myself as a child. I found myself struggling in many areas, and I'd hate to see my children suffer the same fate.

    Sometimes, words are just words. But some words can make the kind of impact I'd very much like to avoid for my children. I don't fear strong language; I fear language that makes us weak.

Steager is an engineer at the University of Pennsylvania. His colleague Hyun Koo is an inventor and dental researcher there. Together, they found a way to form the nanoparticles（纳米颗粒）into long, skinny bristles（鬃毛）, a lot like the ones on a toothbrush. But these bristles shape-shift to fit whatever surface they encounter. They can even squeeze between teeth.

"A new way to clean teeth could help out anyone who finds this chore boring," says Koo. But it would be especially life-changing for people with disabilities or illnesses that make it difficult or impossible to hold and move a toothbrush.

The tooth-cleaning robot works thanks to two magnets（磁铁）. One goes on each side of the teeth. The nanoparticles sit in a water-based solution between the magnets. When the magnets are turned off, the nanoparticles float randomly in the solution. As soon as one magnet gets turned on, the nanoparticles clump together near its center. When you turn on the other magnet and turn off the first one, the nanoparticles extend outward in long, skinny bristles.

When there's a tooth in the way, these bristles can't stretch out as far as they want. So they push against the tooth's surface. If there's a gap between teeth, they push into the gap. Moving the magnets makes the bristles move against and between teeth.

Besides, as a bonus, the nanoparticles can kill what harms the teeth and keep them health y because it contains something commonly added to toothpaste and mouthwash.

The new invention is just a proof of concept. The researchers still need to turn it into a product that people will want to use. It must fit comfortably and safely in people's mouths. It can't draw too much power or cost too much. "There's a lot of engineering to get from here to there," says Steager. But he adds, "every good idea needs to have a start."