Mothers and daughters go through so much—yet when was the last time a mother and daughter sat down to write a book together about it all? Perri Klass and her mother, Sheila Solomon Klass, both gifted professional writers, prove to be ideal co-writers as they examine their decades of motherhood, daughterhood, and the wonderful ways their lives have overlapped (重叠).

    Perri notes with amazement how closely her own life has mirrored her mother's: both have full-time careers； both have published books, articles, and stories； each has three children； they both love to read. They also love to travel—in fact, they often take trips together. But in truth, the harder they look at their lives, the more they acknowledge their big differences in circumstance and basic nature.

    A child of the Depression (大萧条), Sheila was raised in Brooklyn by parents who considered education a luxury for girls. Starting with her college education, she has fought for everything she's ever accomplished. Perri, on the other hand, grew up privileged in the New Jersey suburbs of the 1960s and 1970s. For Sheila, wasting time or money is a crime, and luxury is unthinkable while Perri enjoys the occasional small luxury, but has not been successful at trying to persuade her mother into enjoying even the tiniest thing she likes.

    Each writing in her own unmistakable voice, Perri and Sheila take turns exploring the joys and pains, the love and bitterness, the minor troubles and lasting respect that have always bonded them together. Sheila describes the adventure of giving birth to Perri in a tiny town in Trinidad where her husband was doing research fieldwork. Perri admits that she can't sort out all the mess in the households, even though she knows it drives her mother crazy. Together they compare thoughts on bringing up children and working, admit long-hidden sorrows, and enjoy precious memories.

    Looking deep into the lives they have lived separately and together, Perri and Sheila tell their mother-daughter story with honesty, humor, enthusiasm, and admiration for each other. A written account in two voices, Every Mother Is a Daughter is a duet (二重奏) that produces a deep, strong sound with the experiences that all mothers and daughters will recognize.

    As the richest man in the world, Bill Gates is no stranger to success. So when the billionaire offers advice, it's smart to listen. On Monday, Bill Gates hosted an “AMA” or “ask me anything” session（会议） on Reddit, during which a participant asked, “If you could give 19-year-old Bill Gates some advice, what would it be?”

    Gates said: “I would explain that smartness is not single dimensional and not quite as important as I thought it was back then. I would say you might explore the developing world before you get into your forties. I wasn't very good socially back then, but I am not sure there is advice that would fix that--maybe I had to be awkward and just grow up...”

    In short: Intelligence isn't one-dimensional-and it's not the only ingredient required for success.

    This isn't the only time Gates has given out advice on navigating your years as a young adult. One of his best pieces of wisdom comes from fellow billionaire and friend Warren Buffett: Keep things simple. In a 2009 interview with CNBC. Gates said: “You look at his calendar; It's pretty simple. You talk to him about a case where he thinks a business is attractive, and he knows a few basic numbers and facts about it. And he knows a few basic numbers and facts about it. And if it gets less complicated, he feels like then it's something he'll choose to invest (投资) in. He picks the things that he's got a model of, a model that really is predictive and that's going to continue to work over a long-term period. And so his ability to boil things down, to just work on the things that really count, to think through the basics —it's so amazing that he can do that. It's a special form of genius(天才).”

    Dogs can tell how other dogs are feeling from the way their tails are wagging(摇摆)，according to researchers who monitored the animals' heart rate as they watched dogs' movies. The Italian team found that dogs had higher heart rates and became more anxious when they saw others wag their tails more to the left，but not when they wagged more to the right, or failed to wag at all.

    The curious form of communication is probably not intentional, or consciously understood, but is instead an automatic behavior that arises from the structure of the brain, said Giorgio. “It's not something they clearly and exactly understand,” Giorgio told The Guardian. “It's just something that happens to them.”

    Giorgio traces the effect back to the way the two halves of the brain process different experiences. In a previous study, his team showed that when a dog had a positive experience, activity rose in the left side of the brain, bringing about more tail wagging to the right. Or else more tail wagging to the left. The effect is barely visible to the human eye because dogs tend to wag their tails too fast, but it can be seen with slow motion video, or in some larger types.

    In the latest study, the researchers wanted to find out whether the direction of tail wagging had any effect on other dogs. To get an answer, they fitted dogs with vests that recorded their heart rates, and played them movies of other dogs wagging their tails one way and then the other. To ensure the dogs reacted only to tail wagging, and not appearance? They repeated the experiment with dogs that appeared only as shadows.

    “When dogs saw other dogs wagging their tails to the right, there was quite a relaxed reaction and no evidence of an increased heart rate. But when the wagging was to the left we saw an increase in heart rate and a series of behaviors typically associated with stress, anxiety and being more watchful, “Giorgio said. The anxious animals held their ears up, breathed, and kept their eyes wide open. The study appears in the latest issue of Current Biology.

    Is Paperless Office Really Paperless?

    A rising economy increased paper sales by 6 to 7 percent each year in the early to mid-1990s, and the convenience of desktop printing allowed office workers to indulge anything and everything. In 2004, Ms. Dunn, a communications supplies director, said that plain white office paper would see less than a 4 percent growth rate, a primary reason for which is that some 47 percent of the workforce entered the job market after computers had already been introduced to offices.

    For office innovators, the dream of paperless office is an example of high-tech arrogance（傲慢）. Today's office service is overwhelmed By more newspapers than ever before. After decades of development, the American government can finally get rid of the madness on paper. In the past, the demand for paper has been far ahead of growth in the American economy, but the sales have slowed markedly over the past two to three years, despite the good economic conditions.

    “Old habits are hard to break,” says Ms. Dunn. “There are some functions that paper serves where a screen display doesn't work. Those functions are both its strength and its weakness.” Analysts attribute the decline to such factors as advances in digital databases and communication systems. Escaping our craving for paper, however, will be anything but an easy affair.

    “We're finally seeing a reduction in the amount of paper being used per worker in the workplace,” says John Maine, vice president of a paper economic consulting firm. “More information is being transmitted electronically, and an increasing number of people are satisfied that information exists only in electronic form without printing multiple backups.”

    To reduce paper use, some companies are working to combine digital and paper capabilities. For example, Xerox is developing electronic paper: thin digital displays that respond to a stylus, like a pen on paper. Marks can be erased or saved digitally. Even with such technological advances, the increasing amounts of electronic data necessarily require more paper.

    “The information industry today is composed of a thin paper crust surrounding an electronic core,” Mr. Saffo wrote. The growing paper crust is most noticeable, but the hidden electronic core is far larger and growing more rapidly. The result is that we are becoming paperless, but we hardly notice at all. “That's one of the greatest ironies of the information age,” Saffo says. “It's just common sense that the more you talk to someone by phone or computer, it inevitably leads to a face-to-face meeting. The best thing for the aviation industry was the Internet.”

    Two deer jumped out in front of 16-year-old Amanda Floyd's car. She stepped on the brake, stopping the car just in time. But later, she started texting. Distracted (分心的)，Amanda turned left and right, then crashed into another car. Luckily, she wasn't in a real car--she was in a driving simulator (模拟器) at Roosevelt High School, Ohio, US. “I never really realized that cars make a turn that much," Amanda, a Junior, said. She added that she wouldn't text while driving anymore.

    The Ohio Department of Transportation (ODOT) and State Highway Patrol brought the simulator to the school. They said they wanted to help students learn about the danger of driving while drunk, while texting, or while talking on the phone.

According to the National Highway Traffic Safety Administration, distracted driving claimed 3,4501ives in2016 alone. Experts believe the actual figure is probably higher.

The simulator is basically a computer program. Like many computer games, it was a hit with the students. They lined up and crowded around to watch each other take turns. The simulator has a steering wheel! (方向盘) ,brake and gas pedal (油门踏板) . It is made up of three large computer screens on a table.

    Students choose a distraction, such as driving while drunk or texting. They always crash, of course. Then, they are pulled over by the police to be taught the bad results of their driving: how much damage they've caused, what their fine is, if anyone died in the accident, and if they're going to go to prison.

    "It teaches how to drive without being on the road," said Shante Thompson, 16. She had just crashed into a deer.

    ODOT spokesman Justin Chesnic said hundreds of kids have gone behind the wheel so far. He said even more have benefited from watching their classmates. "Driving is such a major responsibility, so take it seriously" he said. “Put away your cellphone. A lot of the accidents out there are because of distracted driving. It can not only change your life, but it can change someone else's life forever. The results are serious."

    Picasso Blue and Rose' at the Musée d'Orsay in Paris

    Through Jan.6.2019

    In its first major partnership with the Musée National Picasso﹣Paris, the Mus6e d'Orsay presents a show about Pablo Picasso's "Blue and Rose periods. "Some iconic（标志性的）Picasso works from this period in 1900～1906 ﹣﹣which experts consider a key point in his career—will make their first appearance in France for this exhibit. The show features over 300 works, including 80 paintings, 150 drawings, sculptures and prints, alongside photographs and letters from this time in the artist's life.

    'Hodler Parallelism' at the Kunstmuseum Bern in Switzerland

    Through Jan. 13, 2019

    This year marks a century since the death of one of Switzerland's most famous painters: Ferdinand Hodler. To honor his great achievements, the Kunstmuseum Bem and Geneva's Museum of Art and History have joined forces for a show focused on his theory of parallelism. Hodler considered parallelism a key principle of his work and employed it through the use of repetition, patterns, symmetry（对称） and mirror images, The show features 99 of Holder' s works.

    Claude Monet' at the Albertina in Vienna

    Through Jan. 6, 2019

    For the first time in over 20 years, a large﹣scale Monet exhibit can be seen in Austria. The Alhertina has gathered 100 paintings from more than 40 international museums and private collections, including the Musée d'Orsay in Paris, the Museum of Fine Arts in Boston, the National Gallery in London, the National Museum of Western Art in Tokyo, and the Pushkin Museum of Fine Arts in Moscow.  Highlights include the works: "On the Boat," "Boulevard des Capucines," "Grainstack in Sunlight," and "The Japanese Bridge."