Modern smart phones are fast becomingthe must-have item. But what's in store for the next generation of smart phones?

    Tired of carrying around that heavy wallet? Soon you won't need to! The next generation of smart phones will have NFC technology, which lets you pay for things with your smart phones. All youdo is enter your credit card information into your phone. Then, when you are ina shop that allows NFC payments, you just wave your phone over a special instrument at the checkout. The purchase is instantly charged to your creditcard.

    Ever seen someone wearing something and wished you knew where to get it? Soon it will be easy with PicCommerce, new technology that uses image-recognition software. Here's how it works. If yousee something you like, simply take a photo of it with your smart phone. Then, your phone will send the image to a special server, which will respond with information about where you can buy it and how much it will cost.

    Sick of your smart phone battery going flat? With so many applications draining (消耗) the battery, the latest phones need tobe charged every day. But next generation smart phones will come with built-inchips that can connect to an antenna (天线) in your home. And as long as your phone is within range of the antenna, you will be able to charge your smart phone wirelessly, even if it is in your pocket.

    Worried about getting your smart phoneswet in the rain? A company called Hz0 has invented Water Block, new technologythat makes your phone completely water proof. And it's so effective that your phone will even work under water.

    Fed up with carrying a heavy phone around? Soon, you will be able to get a Paper Phone! “Flexible phones are the future,” said scientist Roel Vertegaal. So, what are the benefits of flexible phones? Well, it means that instead of carrying your phone in your pocket, you could wear it wrapped around your wrist, for example.

    Of course, there is just the problem: with so much new smart phone technology around, you will soon need to buy a newphone!

    Sleep deprivation(缺失)is an important hidden factor in lowering the achievement of school pupils, according to researchers carrying out international education tests.

    It is a particular problem in richer countries with sleep experts linking it to the use of mobile phones and computers in bedroom late at night. Sleep deprivation is such a serious problem that lessons have to be dragged down to a lower level to suit sleep-deprived learners, the study found. The international comparison, carried out by Boston College, found the United States to have the highest number of sleep-deprived students, with 73% of 9- and 10-year-olds and 80% of 13- and 14-year-olds identified by their teachers as being negatively affected.

    In literacy(读写能力) tests there were 76% of 9- and 10-year-olds lacking sleep. This was much higher than the international average of 47% of primary pupils needing more sleep and 57% among the secondary age group.

    Other countries with the most sleep-deprived youngsters were New Zealand, Saudi Arabia, Australia, England, Ireland and France. High-performing Finland is also among the most lacking in sleep. Countries with the best records for getting enough sleep include Azerbaijan, Kazakhstan, Portugal, the Czech Republic, Japan and Malta.

    The analysis was part of the huge date-gathering process for global education rankings, the Trends in International Mathematics and Science Study(TIMSS)and Progress in International Reading Literacy Study(PIRLS)

    “I think we underestimate the impact of sleep. Our data show that across countries internationally, on average, children who have more sleep achieve higher in maths, science and reading. That is exactly what our data show,” says Chad Minnich of the TIMSS and PIRLS International Study Center.

    “It's the same link for children who are lacking basic nutrition,” says Mr Minnich, based at the Lynch School of Education, Boston College. “If you are unable to concentrate, to attend mentally, you are unable to achieve at your best level, because your mind and body are in need of something more basic. Sleep is a fundamental need for all children. If teachers report such large proportions of children suffering from lack of sleep, it's having a significant impact. But worse than that, teachers are having to adjust their instruction based on those children who are suffering from a lack of sleep. The children who are suffering from a lack of sleep are driving down instruction.”

    That means that even the children who are getting enough sleep are still suffering from this sleep-related lowering.

    Men are spending more and more time in the kitchen encouraged by celebrity (名人) chefs like Gordon Ramsay and Jamie Oliver, according to a report from Oxford University.

    The effect of the celebrity role models, who have given cooking a more manly picture, has combined with a more general drive towards sexual equality and men now spend more than twice the amount of time preparing meals than they did in 1961.

    According to the research by Prof. Jonatahn Gershuny, who runs the Centre for Time Research at Oxford, men now spend more than half an hour a day cooking, up from just 12 minutes a day in 1961.

    Prof. Gershuny said, “The man in the kitchen is part of a much wider social trend. There has been 40 years of sexual equality, but there is another 40 years probably to come.”

    Women, who a generation ago spent nearly two hours a day cooking, now spend just one hour and seven minutes－a great fall, but they still spend far more time in the kitchen than men.

    Some experts have named these men in aprons as “Gastrosexuals (men using cooking skills to impress friends)”, who have been inspired to pick up a kitchen knife by the success of Ramsay, Oliver as well as other male celebrity chefs such as Hugh Fearnley-Whittingstall, Marco Pierre White and Keith Floyd.

    “I was married in 1974. When my father came to visit me a few weeks later, I was wearing an apron when I opened the door. He laughed,” said Prof. Gershuny. “That would never happen now.”

    Two-thirds of adults say that they come together to share at least three times a week, even if it is not necessarily around a kitchen or dining room table. Prof. Gershuny pointed out that the family meal was now rarely eaten by all of its members around a table－with many “family meals” in fact taken on the sofa in the sitting room, and shared by family members. “The family meal has changed a lot, and few of us eat－as I did when I was a child－at least two meals a day together as a family. But it has survived in a different format.”

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Look into hunters' eyes

    Have you ever been face to face with a cat or a sheep? If you have,you probably noticed that cats narrow their eyes to vertical (垂直的) slits (狭缝),while sheep have horizontal pupils (瞳孔).

     Why is the difference?

    Scientists from the Universities of California Berkeley and Durham in Britain may have the answer. Their research, published recently in the journal Science Advances, suggested that pupils' shapes could tell whether an animal is a hunter or gets hunted.

    The researchers took a close look at the eyes of 214 land animals.The challenge was to see if they could find a relationship between an animal's role in the food chain and the pupils' shapes.

    They found a pattern. Species with pupils that are vertical slits are more likely to be small ambush predators (捕猎者) – creatures that lie in wait for their lunch.In contrast,those with horizontal pupils are more likely to be plant-eating prey (猎物) species.

    Evolution chose the arrangement for a good reason.For hunters such as household cats,it appears that vertical pupils not only improve their ability to keep track of moving objects like mice,but also maximize (使最大化) their ability to judge the distances of the animals they hunt.

    However, an interesting discovery from the study is that the slit pupils are mostly linked to hunters that are close to the ground. Therefore, bigger cats who actively hunt down their prey, like tigers and lions, don't have slit pupils.

    On the other hand, for plant-eating prey animals, horizontal pupils give them a wider field of vision.When stretched (伸展) horizontally,the pupils allow for more light to enter from the front, back, and sides. Meanwhile, they also limit the amount of light from the sun above so the animal can see the ground better.“ Once they do find a predator,they need to see where they are running,” said leading researcher Martin Banks,a UC Berkeley professor of optometry (视光学).“They have to see well enough out of the corner of their eye to run quickly and jump over things.”

    But what happens when they bend down to eat? Researchers checked this by watching prey animals in the Oakland Zoo in California, US. They believe that when goats lower their heads to eat,their eyes rotate (旋转) to keep their pupils horizontal.

    So it seems that the eyes are indeed the window to the soul!

    Blowing bubbles is fun! The best thing about bubbles is that it's easy to make your own bubble solution(溶液). You can make as much as you want and blow as many bubbles as you'd like. If you add a "secret" ingredient(配料), you'll get bigger and stronger bubbles! Do just as follows:

    Measure 6 cups of water into one container, then pour 1 cup of dish soap into the water and slowly stir it until the soap is mixed in. Try not to let bubbles form while you stir.

    Measure 1 tablespoon of glycerin(甘油) or 1/4 cup of corn syrup（玉米淀粉） and add it to the container. Stir the solution until it is mixed together.

    You can use the solution right away, but to make even better bubbles, put the lid on the container and let your super bubble solution sit overnight. The soap mixture on the outside of a bubble is actually made of three very thin layers: soap, water, and another layer of soap. A bubble pops when the water that is trapped between the layers of soap evaporates(蒸发). The glycerin or corn syrup mixes with the soap to make it thicker. The thicker skin of the bubbles keeps the water from evaporating as quickly, so they last longer. It also makes them stronger, so you can blow bigger bubbles.

    Dip a bubble wand or straw into the mixture, slowly pull it out, wait a few seconds, and then blow. If you don't have a ready-made "bubble wand", you can make your own by cutting off the end of the bulb of a plastic pipet. Dip the cut end in solution and blow through the narrow end. You can also make a loop out of thin wire or pipe cleaner. Just twist a round end on your wire to blow the bubbles through. You can even make it heart-shaped, square or use other shapes if you're clever enough to bend it well.

    It's said that you don't know a man until you walk a mile in his shoes. And you also don't know what it's like for older people to travel until you accompany one on a trip.

    After flying with my elderly father from Washington, D.C. to L.A. in July, I began to realize that a companion has important tasks that can make a journey easier for older people. I booked nonstop tickets on JetBlue to avoid tiring, confusing connections, and we flew directly into small, manageable Long Beach Airport. Even though my father could walk, I arranged with the airline for wheelchair assistance, which meant we got on board first.

    When I took him back to the airport for his return flight to Washington, I got permission from JetBlue to wait with him at the gate instead of saying goodbye at the security checkpoint. I wished he'd had a first-class seat and access to a comfortable airline club. Better yet, I wish I had flown with him both ways. As I watched the attendant wheel him to the lift that took him from the tarmac（飞机跑道）to the plane, I felt like an anxious mom sending her child to school for the first time.

    Things can go awry on a plane trip. And then there is the horrifying story about Joe and Margie. When they landed at Dallas-Fort Worth International Airport, a wheelchair attendant met them to help with a connection. But somehow Margie, who had Alzheimer's disease, disappeared.

    I didn't need to worry about my father wandering away; at 82, his mind was sharper than mine. But his hearing was poor, so I worried about what would happen if he missed an important announcement. Fortunately, everything went just fine. Careful planning made the trip successful.

    Next time I travel with a senior, I'll know better. I hope there will be a next time.