Scientists found that sleeping considerably improves our creativity. After taking a nap people are able to think faster and put more imagination into their thinking. Besides, if we dream, the thinking abilities are improved even more.

    Researchers consider that sleeping on a problem in most cases leads to elucidation(解释). They say when a person enters a phase called Rapid Eye Movement (REM) during sleep, it increases the effect. Such phase takes place right before we awake and according to scientists it helps our brain make links between unrelated subjects.

    In the study, led by Professor Sara Mednick, scientists made a conclusion that the REM was "important for assimilating(消化) new information into past experience" in order to find solutions to creative problems.

    Prof. Mednick is a psychiatrist at the University of California. Her study involved the analysis of 77 adults. Each participant was given several word-associated creative tasks. All tasks were given in the morning, with participants being shown a number of groups of 3 words, for example: cookie, heart and sixteen. They were asked to come up with a word that would be associated with all three given terms—like sweet. Sometime later, after some participants were allowed to sleep, they were asked to perform the same tasks and some new ones. It is worth mentioning that while some people slept, researchers used brain scans to see the type of sleep each participant entered.

    When given the same tasks, participants, who took a nap, were able to give more varied solutions, some of which were much better than they gave earlier. But when given new tasks, researchers found that those who entered REM sleep had a 40 percent better result compared to the performance they showed in the morning.

阅读理解

    The kindly “Chinese Fortune Grandpa” wearing Han Chinese clothing and holding a fortune bag debuted （亮相） at the Imperial Ancestral Shrine in Beijing on the day after Christmas. The final image of the Chinese gift-giver was selected through a global design competition against “Santa Claus”, according to a report by Guangming Daily.

    Many Chinese cities have been filled with Christmas neon lights, Christmas songs, Christmas trees, and the images of “Santa Claus”in recent days. As a matter of fact, foreign festivals are becoming more popular than certain traditional Chinese festivals among the Chinese people, particularly the youth. “Certain traditional festivals have died out because people have forgotten their spiritual meanings, ”said noted writer Feng Jicai. More and more Chinese people are beginning to exchange gifts on Valentine's Day and Christmas. However, many of them know nothing about Chinese New Year pictures or sugarcoated figurines（小糖人）, and have never heard suona music. Certain folk customs on the Dragon Boat Festival, Tomb Sweeping Day, and other traditional festivals have gradually disappeared. Under such circumstances, even the “Chinese Fortune Grandpa” is unlikely to defeat “Santa Claus”.

    However, it is not a bad thing to some extent. It constantly reminds people to restore the “true face” of traditional festivals. China has listed traditional Tomb Sweeping Day, Dragon Boat Festival and Mid-Autumn Festival as legal holidays, which brings more paid leaves to the public, and helps to awake the public awareness of traditional festivals.

    In modern society, festival is a carrier of culture and its meaning largely depends on their understandings and usages by people. Compared with foreign festivals, traditional Chinese festivals are not inferior （次于） in cultural meanings, but lack of fashion sought by modern people. If people do not appreciate the historical culture contained by traditional festivals, and only take pleasure-seeking as the most important, the significance of traditional festivals will fade away and the inheritance （继承） of fine traditional culture will be cut off.

Children and Youth Sidewalk Sale

    Young people are bursting with artistic energy. The Children and Youth Sidewalk Sale (CYSS) of the Central Pennsylvania Festival of the Arts is a fun way for boys and girls to express themselves visually. It focuses on encouraging the creative growth of young people, believing they can develop their artistic potential through personal expression in individual original objects.

    CYSS is a highlight of Children and Youth Day, Wednesday, July 12, 2018. This day features performances for and by young people, art and craft workshops and demonstrations. All artists must he between the ages of 8 and 18 and live or have relatives living in any of the centrally located Pennsylvania counties to participate.

    All artworks must be original and age-appropriate for the event's audience, most of whom are under 18. The sales of work made from small animals and the sales of food are prohibited. A complete listing of the rules can be found in the application. Please review the rules carefully as they may have changed since you last participated in the event.

    Artists must personally be present during the entire clay. Representatives, including family members, may not attend in place of the artist.

How to Enter

    Complete both sides of the entry form. A parent signature is required.

    On a separate sheet, provide a brief description of the artwork and the materials used. Do not send samples; they cannot be returned.

    Enclose at least one photograph of your work.

    Mail application and photo of your work to P. O. Box 1023, Central Pennsylvania Festival of the Arts.

    What would it be like to walk on Mars? If you could build the highest building in the world，what would it look like? Do you dream of being the next J. K. Rowling? This summer, you can experience all of these things, and more. All you need is an Internet connection and your imagination.

    A recent study by the Kaiser Family Foundation found that kids spend an average of 1 hour and 29 minutes online each day. Many kids like to use that time to chat with friends, play games or check e­mails. But the next time you get on the Web, try exploring the world instead. “With the Internet，you can go back 11,000 years in time，or go 11,000 kilometers across the planet.” said Russell, Web search expert of Google. “The whole scope of history and the world is open to you.”

    There is a wealth of information to be found online. For example, if your family is going on vacation somewhere, do a quick online search on the area before you even get in the car. “What's the background of the place; what's the history？” says Russell. “I like to tell my kids, ‘Whenever you have a question, whenever you have a doubt, search it out.'”

    Ready to launch a virtual journey of your own? Here are a few starting points to get you thinking and to help you on your way. You can invite your parents along for the ride, too. Always ask for permission before downloading programs and software onto your computer. And check with a parent or an adult before visiting any new Web site.

    Navigate the world in 3­D with Google Earth. Begin in outer space and zoom (快速移动) into the streets of any city, from Hong Kong to San Francisco. Or visit ancient monuments, watch the changing rainforests over time, and dive underwater to explore tropical reef.

    With the Moon in Google Earth tool, you can walk in Neil Armstrong's famous footsteps. Take a guided tour of the moon's surface with Armstrong's fellow shuttle mate astronaut Buzz Aldrin.

    When you're exploring that part of the solar system, hop on over to the Red Planet with Google Mars. There, you can move very quickly around the surface and see images from the Mars Rovers.

    A. High tech with traditional life at Green Bank.

    Over millions of years, penguins（企鹅）have developed a keen sense of where to find food. Once they're old enough, they set off from the shores on which they were hatched for the first time and swim long distances in search of tasty fish like anchovies and sardines. But they don't search directly for the fish themselves.

    For example, when young African penguins head out to sea, they look for areas with low surface temperatures and high chlorophyll(叶绿素) because those conditions signal the presence of phytoplankton（浮游植物）. And lots of phytoplankton means lots of plankton（浮游动物）, which in turn means lots of their favorite fish. Well, that's what it used to mean.

    Climate change plus overfishing have made the penguin feeding grounds a mirage(海市蜃楼). The habitat is indeed plankton-rich—but now it's fish-poor. Researchers call this an “ecological trap.”

    “It's a situation where you have a signal that previously pointed an animal towards good quality habitat. That habitat's been changed, usually by human pressures. The signal stays, but the quality in the environment deteriorates.”

    Richard Sherley, a zoologist at the University of Exeter and his team used satellite imaging to track the African penguins from eight sites along southern Africa. Historically, the birds benefited from tons of fish off the coasts of Angola, Namibia and western South Africa, but now they're going hungry.

    “I was really hoping we'd see them going east, and finding areas where the fish had moved to but it ends up being quite a sad story for the penguins.” said Richard.

    The researchers calculate that by falling into this ecological trap, African penguin populations on South Africa's Western Cape have declined by around 80 percent.

    Some research groups are exploring the idea of moving chicks to a place where they can't get trapped, like the Eastern Cape. But Sherley thinks that a longer-term solution means making and carrying out rules to create more sustainable(可持续的) fishing industry, something that he says needs public support.

    Most airlines go all out to ensure their passengers have the best possible flight experience. Now, Europe's low-budget airline, easyJet, wants to extend the positive experience beyond the plane ride with “Sneakairs” —smart shoes that allow visitors to explore new cities and towns without ever looking at a map.

    To transform Sneakairs from an ordinary shoe to a tour guide，all the wearer has to do is enter his or her desired destination into the easyJet smartphone app. A built-in GPS will determine the wearer's starting location while the Google Maps navigation (导航)tool will help chart the best route. Whenever a change of direction is necessary, the app will communicate with the appropriate shoe via the Bluetooth and cause it to vibrate(振动). For example, if the wearer needs to turn right, he/she will feel the sensation in the right shoe. Should the user miss the turn, the smart shoes will both vibrate at the same time, reminding him/her to change course.

    Visitors that wander off the suggested path or decide to take a break for a cup of coffee or a meal have nothing to worry about. The smart app will automatically determine the new location and chart out a new route. Once the desired destination is reached, Sneakairs will vibrate three times to inform the user of the arrival and then go back to being ordinary shoes—until their navigation services are needed again!

    Sneakairs is certainly not the first navigation shoe in the market. However, easyJet is the first airline to offer them to passengers just as they are about to land in an unknown city. However, before Sneakairs can go mainstream, the easyJet team still needs to make some adjustments. Among the challenges that need to be addressed is the smart shoe's three-hour battery life, which is hardly enough for a tourist to catch all the delights a new city or town has to offer!