In 2004 ,when my daughter Becky was ten , she and my husband ,Joe, were united in their desire for a dog . As for me , I shared none of their canine lust.

But why , they pleaded. “Because I don't have time to take care of a dog.” But we'll do it. ” Really? You're going to walk the dog? Feed the dog? Bathe the dog?” Yes, yes , and yes .”I don't believe you .” We will . We promise.

They didn't . From day two (everyone wanted to walk the cute puppy that first day ) , neither thought to walk the dog . While I was slow to accept that I would be the one to keep track of her shots , to schedule her vet appointments , to feed and clean her , Misty knew this on day one . As she looked up at the three new humans in her life (small, medium, and large) , she calculated ,”The medium one is the sucker in the pack .”

Quickly, she and I developed something very similar to a Vulcan mind meld (心灵融合) . She'd look at me with those sad brown eyes of hers , beam her need , and then wait , trusting I would understand — which , strangely , I almost always did . In no time , she became my feet as I read , and splaying across my stomach as I watched television .

Even so , part of me continued to resent walking duty .Joe and Becky had promised. Not fair , I'd balk (不心甘情愿地做) silently as she and I walked . “Not fair , ” I' d loudly remind anyone within earshot upon our return home .

       Then one day — January 1, 2007 , to be exact — my husband ‘ s doctor uttered an unthinkable word : leukemia ( 白血病) .With that , I spent eight to ten hours a day with Joe in the hospital , doing anything and everything I could to ease his discomfort. During those six months of hospitalizations, Becky, 12 at the time, adjusted to other adults being in the house when she returned from school. My work colleagues adjusted to my taking off at a moment's notice for medical emergencies. Every part of my life changed; no part of my old routine remained.

      Save one: Misty still needed walking. At the beginning, when friends offered to take her

through her paces, I declined because I knew they had their own households to deal with.

      As the months went by，I began to realize that I actually wanted to walk Misty. The walk in the morning before I headed to the hospital was a quiet, peaceful time to gather my thoughts or to just be before the day's medical drama unfolded. The evening walk was a time to shake off the day's upsets and let the worry tracks in my head go to white noise.

      When serious illness visits your household, it's , not just your daily routine and your assumptions about the future that are no longer familiar. Pretty much everyone you acts differently.

Not Misty. Take her for a walk, and she had no interest in Joe's blood counts or 'one marrow test results. On the street or in the park, she had only one thing on her mind: squirrels! She Was so joyous that even on the worst days, she could make me smile. On a daily basis she reminded me that life goes on.

      After Joe died in 2009，Misty slept on his pillow.

I'm grateful一to a point. The truth is, after years of balking, I've come to enjoy m' walks with Misty. As I watch her chase after a squirrel, throwing her whole being into the here-and-now of an exercise that has never once ended in victory, she reminds me, too, that no matter how harsh the present or unpredictable the future , there's almost always some measure of joy to be extracted from the moment.

    The final results of Best-Ever Teen Fiction vote are in. While it's no surprise to see Harry Potter and The Hunger Games series on top, this year's list also highlights some writers we weren't as familiar with. For example, John Green, author of The Fault in Our Stars, appears five times in the top 100.

    Summer, like youth, passes quickly. But the books we read when we're young can stay with us for a lifetime. The following are the top 4 on the list. Enjoy.

    ⒈Harry Potter series

    The Harry Potter books make up the popular series written by J. K. Rowing. The series includes seven books. The books concern a wizard (魔法师) called Harry Potter and his journey through Hogwarts School of Witchcraft and Wizardry. The stories tell of him over coming dangerous obstacles to defeat the dark wizard Lord Voldemort who killed his parents when Harry was 15 months old.

    ⒉The Hunger Games series

    In the ruins of a future North America, a young girl is picked to leave her poor district and travel to Capitol for a battle to the death in the cruel Hunger Games. But for Katniss Everdeen, the main character in this series by Suzanne Collins, winning the Games only puts her deeper in danger as the strict social order of Panem begins to unravel (瓦解).

    ⒊To Kill a Mockingbird

    Author Harper Lee explores racial tensions in the fictional “tired old town” of Maycomb, Ala., through the eyes of 6-year-old Scout Finch. As her lawyer father, Atticus, defends a black man accused of a crime, Scout and her friends learn about the unjust treatment of African-Americans – and their mysterious neighbor, Boo Radley.

    ⒋The fault in Our Stars

    Hazel Grace, a teenage girl, has got all sorts of cancer inside her body, and her lungs aren't working very well. She knows she is dying and doesn't live in hope any more. When a man named Augustus Waters suddenly appears at the Cancer Kid Support Group, Hazel's story is about to be completely rewritten.

    Throughout history scientists have risked their health and their lives in their search for the truth.

    Sir Isaac Newton, the seventeenth century scientist, was very smart, but that didn't stop him from doing some pretty stupid things. In his laboratory in Cambridge he often did the strangest experiments. Once, while testing how light passes through lenses (晶状体), he put a long needle into his eye, pushed it to the back, and then moved it around just to see what would happen. Luckily, nothing long-lasting did. On another occasion he stared at the sun for as long as he could bear, to discover what effect this would have on his sight. Again he escaped suffering permanent damage, though he had to spend some days in a darkened room before his eyes recovered.

    In the 1750s the Swedish chemist Karl Scheele was the first person to find a way to produce phosphorus (磷). He in fact discovered eight more chemical elements including chlorine (氯), though he didn't get any praise for them. He was a very clever scientist, but his one failing was a curious habit of tasting a little of every substance he worked with. This risky practice finally caught up with him, and in 1786 he was found dead in his laboratory surrounded by a large number of dangerous chemicals, any of which might have been responsible for his death.

    Eugene Shoemaker was a respected geologist. He spent a large part of his life studying craters (火山口) on the moon, and how they were formed, and later did research into the comets of the planet Jupiter. In 1997 he and his wife were in the Australian desert where they went every year to search for places where comets might have hit the earth. While driving in the Tanami desert, normally one of the emptiest places in the world, another vehicle crashed into them and Shoemaker was killed on the spot. Some of his ashes (骨灰) were sent to the moon aboard the Lunar Prospector spacecraft and left there — he is the only person who has had this honor.

    D. Mike Miles hadn't had a stable job in years. He bounced around from temporary agency to temporary agency, never sure when his last day would be. Sometimes, he lost a job with less than a day's notice. This was not due to a poor work ethic (职业道德) - from arriving early to staying late, Miles said he did everything he could to leave good impressions on employers in Lancaster, Pennsylvania, in the US. But because Miles had a criminal record, he was always cut loose when it was time to let staff go.

    "It was like walking on eggshells. You just never knew when you'd be gone," he said.

    After his release from prison in 2007, Miles struggled to find stability – both mentally and financially. During this time, he lived in his mother's house and she helped him raise his daughter. When his mom passed away two years later, Miles said he became more determined than ever to create a healthy environment for his family.

    "I'm all she has, and she's all I have," he said. "I had to build a whole new relationship with my daughter, while building a whole new life for myself."

    It wasn't until October 2015, nearly a decade after he got out of prison, that a cousin told Miles about a food company that hires people who have difficulty finding jobs.

    Hoping this would clear up what felt like a thick cloud of uncertainty over his future, Miles submitted an application. He got an interview and soon after that, began his new job. His work involves everything from food production to maintenance (保存), not to mention it pays a livable wage of $15 an hour. He said it's the best job he's ever had.

    Miles' story is rare in Lancaster, where the poverty rate is around 30 percent – about double the national average. This figure annoyed Charlie Crystle, the co-founder and CEO of the company that gave Miles his job.

    Crystle said he wanted to inspire other companies and entrepreneurs (企业家) to rethink their current practices and ignite(引发)conversations about minimum wage and employment opportunities for everyone, including ex-offenders (有犯罪前科的人).

    Beyond providing employment and livable wages, the company also helps employees deal with the many challenges of reentry into society. This means anything from helping them find housing and health benefits to changing their schedules.

    Miles is now saving for a house. "It doesn't have to be a big house," he said. "I just want to be stable."

    Curiosity is what drives us to keep learning, keep trying, keep pushing forward. But how does one generate (产生) curiosity, in oneself or others? George Loewenstein, a professor of psychology at Carnegie Mellon University, offered an answer in the classic1994 paper, "The Psychology of Curiosity."

    Curiosity arises, Loewenstein wrote, "when attention becomes focused on a gap in one's knowledge. Such information gaps produce the feeling of deprivation (匮乏) labeled curiosity. The curious individual is motivated to obtain the missing information to reduce the feeling of deprivation." Loewenstein's theory helps explain why curiosity is such a force: it's not only a mental state but also an emotion, a powerful feeling that drives us forward.

    Scientist Daniel Willingham notes that teachers are often "so eager to get to the answer that we do not devote enough time to developing the question." Yet it's the question that stimulates (刺激) curiosity; being told an answer stops curiosity before it can even get going.

    In his 1994 paper, George Loewenstein noted that curiosity requires some basic knowledge. We're not curious about something we know absolutely nothing about. But as soon as we know even a little bit, our curiosity is aroused and we want to learn more. In fact, research shows that curiosity increases with knowledge: the more we know, the more we want to know. To get this process started, Loewenstein suggests, take steps with some interesting but incomplete information.

    Language teachers have long used communication in exercises that open an information gap and then require learners to communicate with each other in order to fill it. For example, one student might be given a series of pictures for the beginning of the story, while the student's partner is given a series of pictures showing how that same story ends. Only by speaking with each other (in the foreign language they are learning, of course) can the students fill in each others' information gaps.

Video calls are a common occurrence, but have you imagined being able to touch the person on the other end of the line? Scientists are making this a reality.

Researchers at the University of new South Wales, Australia have invented a soft skin stretch device (SSD). A haptic device that can recreate the sense of touch. Haptic technology mimics the experience of touch by stimulating localized areas of the skin in ways that are similar to what is felt in the real world, through force, vibration or motion.

Vibration is the most common haptic technology today and has been built into many electronic devices such as one attached to the back of the trackpad (触摸板) in laptops, which simulates a button clicking. However, haptic feedback with vibration becomes less sensitive when used continuously. The existing technology also has great difficulty recreating the sense of touch with objects in virtual environments or located remotely. According to Mai Thanh Thai, lead author of the study.

The new technology overcomes issues with existing haptic devices. The research team introduced a novel method to recreate the sense of touch through a soft artificial "muscles".

"Our three-way directional skin stretch device, built into the fingertips of the wearable glove we also created is like wearing a second skin-- its soft stretchable and mimics the sense of touch-- and will enable new forms of haptic communication to enhance everyday activities" said Thanh Nho Do, senior author of the study.

Imagine you are at home and you call your friend who is in Australia. You wear a haptic glove with the SSDs, and your friends also wears a glove with integrated 3D force sensors. If your friend picks up an object, it will physically press against your friend's fingers. And their glove with 3D force sensors will measure with interactions. The force signals can be sent to your glove so your device will generate the same 3D forces. Making you experience the same sense of touch as your friend.

The haptic devices could be applied in various situations, allowing users to feel objects inside a virtual world or at a distance. It could also be used in medical practices. Doctors can feel a patient's organ tissues. With surgical tools without touching them.