A European Union program is letting blind people experience famous paintings for the first time. It uses three dimensional(3-D) printing to re-create famous paintings so they can be touched.

    One painting printed with the new technology is Gustav Klimt's “The Kiss.” It is a popular attraction at the Belvedere Museum in Vienna, Austria. The painting shows a man and a woman standing in a field filled with flowers. They are wearing gold robes and have their arms around each other. The man leans down to kiss the woman.

    Klimt finished the painting in 1908. Until now, people who had trouble seeing could not appreciate the artwork. But thanks to the reproduction they can touch the piece and feel the ridges and depressions. Andreas Reichinger started making 3-D versions of artwork in 2010. He said this reproduction was his most difficult project because the couple's robes are so detailed.

    Dominika Raditsch is a blind museum visitor. She touched the reproduction. As she moved her hands around it she said, “Exactly, can you see these? There are so many details.” Raditsch said she can imagine what the original painting looks like when she touches the reproduction. “It's somehow round. You can feel it. You can feel it. It comes with it. And in many places it's so smooth. And then I think to myself: it probably shines too!” Raditsch said.

    The Belvedere is not the only museum to have 3-D versions of its artwork. Some of the pieces at the Prado, in Madrid, Spain, have reproductions that can be touched. But the piece in Vienna has one special part: It is made with widely available 3-D printing technology. That means one day, blind art fans anywhere in the world could download the source files and print the reproductions themselves.

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    It is interesting to see that the force of only 6 or 7 people pushing in the same direction can cause up to 1,000 pounds of force-enough to break brick walls. During a deadly stampede(逃奔), people can even die standing up. People die when pressure is put to their bodies in a front to back direction, causing them not to be able to breathe.

    If you are in a crowd, the first and most important thing is to make yourself familiar with your surroundings and find different exits. No matter where you are, make sure you always know how to get out.

    Make yourself aware of the type of the ground you are standing on, and know that in a crowd of moving people wet ground can cause you to fall.

    When in danger, a few seconds can make a difference, giving you the possibility of making use of your escaping route. Always stay closer to the escape route. If you find yourself in the middle of a moving crowd, do not fight against the pressure, do not stand still or sit down, because you can easily get trampled（踩踏）. Instead, move in the same direction of the crowd; make use of any space that may open up to move sideways to the crowd movement where the flow is weaker.

    Keep your hands up by your chest, like a boxer-it gives you movement and protects your chest. If you fall, get up quickly. If you can't get up because you are injured, get someone to pull you up. If you have kids, lift them up.

    If you fall and cannot get up, keep moving in the same direction of the crowd, or if that is not possible, then cover your head with your arms; do not lie on your stomach or back.

    For years I wanted a flower garden. But then we had Matthew. And Marvin. And the twins, Alisa and Alan. And then Helen. I was too busy raising them to grow a garden.

Money was limited, as well as time. Often when my children were little, one of them would want something that cost too much, and I'd have to say, “Do you see a money tree outside? Money doesn't grow on trees, you know.”

Finally, all five got through high school and college and were off on their own. I started thinking again about having a garden. I wasn't sure, though, I mean, gardens do cost money.

Then, one spring morning, on Mother's Day, I was working in my kitchen. Suddenly, I realized that cars were tooting their horns as they drove by. I looked out of the window and there was a new tree, planted right in my yard. I thought it must be a weeping willow, because I saw things blowing around on all its branches.

    There was a money tree in my yard !It was true! There were dollar bills, one hundred of them, taped all over that tree. There was also a note attached: “IOU eight hours of digging time. Love. Marvin.”

    Marvin kept his promise, too. He dug up a nice ten-by-fifteen foot bed for me. And my other children bought me tools, ornaments, a trellis, a sunflower stepping stone and gardening books.

That was three years ago. My garden's now very pretty, just like I wanted. When I go out and weed or tend my flowers, I don't seem to miss my children as much as I once did. It feels like they are right there with me. I think about what my children did for me, and I get tears in my eyes every time.

I'm still not sure that money grows on trees. But I know love does!

    Obviously, most people who try to lose weight generally focus all or most of their attention on the food they eat. But what about their behavior? Are there habits they could be breaking that would also help them lose weight?

    According to the Ohio State University Extension, which summarized the findings, the researchers learned people who routinely ate breakfasts, lunches, and dinners tended to have more success losing weight than people whose eating schedules were irregular. As a bonus, they were also more likely to eat a larger quantity of fruits and vegetables.

    One activity that brought a disaster to people who wanted to lose weight was watching television, particularly if they ate while watching TV--especially if they ate while watching TV after 7 p.m. People who did these things, including simply watching a lot of television, tended to have a higher body mass index (BMI), as well as a higher intake of fat and sugars.

    Those who ate out a lot also tended to take in more fat and sugars, while eating fewer fruits and vegetables. For the purposes of the study, eating away from home was defined not only as eating in restaurants but also eating food provided by an employer or colleagues at work, buying food at convenience stores or gas stations, or buying food for fund-raisers.

    Finally, the best results were achieved by those motivated people who kept writing the track of the amount and type of exercise they did and how many calories they ate, who planned meals, and used meal replacements. Those who did these things the most generally lost more weight, ate less fat and sugars, ate more fruits and vegetables, and engaged in more physical activities.

So cutting out all those high-calorie snacks will help you lose weight. If so, apparently, will change some of your habits and behavior.

    The koala is an unusual creature. Native to Australia and a bit bigger than a rabbit, it spends most of its time in eucalyptus trees（桉树）, feeding on leaves that are poisonous to nearly every other animal on the planet.

    The koala sleeps about 22 hours a day and spends the remainder of its time eating and resting. It might spend 10 minutes a day moving, experts say, usually from one tree to another. It has a soft pad at the end of its spine and extra thick fur on its rear end to make the effort, of sitting more comfortable.

    Threats and protective measures

    The unique lifestyle of the koala has helped it prosper, but today the cute and iconic creature is facing threats from habitat loss, disease and a changing climate. Koala populations are expected to decline by 50 percent in the next 20 years according to the Australian Museum.

    To help protect these animals, which bring in an estimated $1.1 billion to Australia each year through koala-related tourism, an international team of researchers has published the first complete genome（基因组）of the koala. Their hope is that the keys to the marsupial's（有袋动物）long-term survival might be planted in its genetic code.

"The ultimate goal is that we won't have to…rescue them from the edge of extinction," said Rebecca Johnson of the Australian Museum Research Institute in Sydney, who led the work.

    "Now we have a really good understanding of the koala genome, and we are in a fantastic position to use that knowledge to help us manage them."

    Early findings

    An elementary analysis of the koala's genome, published in Nature Genetics, has already yielded some interesting findings.

    For example, the authors found that, compared to other mammals, the koala's DNA includes an expansion in the number of genes that encode for enzymes involved in anti-poison. That allows them to have a diet that depends almost entirely on eucalyplus leaves which are unusually high in poison. However, it also means that koalas metabolize（代谢）medicines like anti-chlamydia antibiotics faster than other animals.

    The koala genome also revealed why koalas are such famously picky eaters. They are known to consume leaves from just 20 of Australia's 60 known eucalyplus species. And even when they are in one of their preferred trees, koalas take leaf selection very seriously.

    Information waiting to be discovered

    Johnson said that the information encoded in the koala's DNA is already being included in management strategies by conservation groups. However, she said the findings described in the new paper represent the early stages of what can be gleamed from the marsupial's genome.

    "The data is public, and I would love for anyone to start mining it and see what other amazing things they can find," she said." Once you have a genome of this quality, the sky's the limit with what you can do with it."

    Go to NYU Precollege Summer Program

    Make the most of your summer vacation with this six-week academic summer camp for high school juniors and seniors. Earn college credits, explore New York City(NYC), and experience academic and student life at New York University(NYU), Scholarships are available.

    Participants

    NYU Precollege summer camp offers rising high school juniors and seniors the opportunity to experience academic and student life at New York University. Teens take college-level courses for academic credits which may be applied to a future degree. Residential（住校的）and non-residential choices are available.

    What to do

    Participants take credit-bearing（学分计的）courses with current college students. Courses are available in over 36 subjects. Students can explore the archeological（考古学的）history of New York City, visit major New York sports equipment, learn the business of sports management, begin to master the Chinese language, practice the art of news reporting, or dig into the service industry while going behind the scenes at Manhattan hotels and restaurants.

    Additionally, students have the opportunity to participate in free noncredit seminars taught by NYU's distinguished writing experts. The seminars offer students an opportunity to improve writing skills and focus on college-level writing.

    Harvest Outside the classroom, NYU Precollege offers seminars regarding the college admissions and application process, as well as a variety of on-and-off-campus social event and activities. NYU Precollege summer camp allows outstanding teens to get a taste of college while still having time to work or volunteer outside of school, and enjoy the summer vacation.