A Blessed Teacher

    I remembered Ricky came back to see me ten years after he was in my class. He told me how I had inadvertently(不经意地) changed his life.

    Ricky often gazed out the window during one of my ninth-grade history classes early in my teaching career. He was quiet, and his good grades and mild manner were why I did not move him away from the seat by the window.

    One day, I leaned over his shoulder and quietly asked, “What are you looking at? You gaze out of this window during every class.”

    He said, “I am looking at the band.”

    According to Ricky, I said, “If you like the band so much that you have to look at them during this class every day, I want you to go down to Mr. Overby (the band teacher) and tell him that I sent you. Tell him that you want to be in the band. Now turn around and finish working before the bell rings.”

    The next day Ricky went to Mr. Overby and told him I had sent him and he wanted to be in the band. He added that he did not know how to play any instrument.

    When Ricky visited me ten years later, he thanked me for telling him to go to Mr. Over by because he fell in love with music and discovered his musical talent that had not been tapped. His musical talent resulted in him getting a scholarship to college and earning a degree that now allowed him to provide for his family. Most of all, music had brought great pleasure and satisfaction to his life.

    After Ricky thanked me, I pointed out that he did all of the hard work it took to become the wonderfully talented person that he was. I did not make him walk downstairs to join the band, practice his instrument, and get the good grades that led to his college scholarship.

    Ricky responded that I could have yelled at him for looking out the window. Instead, I gave him an alternative that changed his whole life.

    After he left, I thought about his words. I realized that I was teaching children with every word I said, every action I took, and with every decision I made. Ricky's story raised my teaching bar. Most of all, I have never forgotten the lesson Ricky taught me, a blessed teacher.

    Standing in the shower waiting for the water to het up could be a thing of the past, along with all the wasted water. Three and a half years ago, Lindy Honeychurch, a thirty-year-old Australian full-time mum living on a farm outside Launceston, didn't consider herself a very good water saver. Neither did her partner who often complained about it with good reasons. Their farm had to rely on tank water and solar power, which meant water had to be trucked in if he tank water ran out in summer.

    “I looked at where I could save because I could lead an easier life without the complaint,” she said. Modeling her idea on a car thermostat(恒温器), Lindy used her kids' magnetic(磁的)drawing board to design a device that diverts the cold water back down the hot water pipe. “The first aim when I started designing was to keep it really small and simple without having to use power. I wanted to keep it as something that everyone could use,” said Lindy.

    She got a patent for her design and took it to some engineers to have it tested out. At first, even though the engineers were amazed that she wasn't an engineer, she said she sometimes found it hard to be taken seriously. “My age was a real factor because in the plumbing(管路系统)and manufacturing industries you're dealing with people who've got a lot of experiences,” she said. But the engineers soon saw the potential of her design, which she estimated would save average families between 14,000 to 22,000 liters per year.” when you transfer that to the dollar savings on tank water that you have to buy, it can be a saving of $600 per year,” said Lindy.

    Armed with positive feedback from engineers and people using rainwater tanks, her design proved a great success. Soon she found a manufacturer early this year, and completed a state government commercial ready course to help her research, her markets and distribution channels. With an Australian Standard for her device just approved, she's about to start manufacturing and wishes to see her products on the shelves within the next few months. Once that happens, Lindy plans to return to being a full-time mum.

    The guzheng is a traditional Chinese musical instrument. It belongs to the zither（齐特琴）family of string instruments. It is the parent of many musical instruments of some other countries.

    The guzheng should not be confused with the guqin, another ancient Chinese zither but without bridges. Now the guzheng is zither with movable bridges and usually 21 strings, although it can have from 15-25 strings. The guzheng's strings were formerly made of silk, though most players used metal strings by the 20^th century. Since the mid-20^th century most performers use steel strings. The guzheng has a large resonant cavity（共振腔）.

    The guzheng has existed since the Warring States Period and became especially popular during the Qin dynasty. The number of strings on the guzheng has always fluctuated. There were as few as 6 to as many as 23 strings during the Tang dynasty. The earliest record of the guzheng belonged to the historian Sima Qian. Until 1961, the common guzheng had 16 strings, although by the mid-20^th century 18-string guzheng were also in use. In 1961, Xu Zhenggao, together with Wang Xunzhi, introduced the first 21-string guzheng after two years of research and development. In 1960, they also invented the “S-shaped” left string rest, which was quickly adopted by all guzheng makers and is still used today. This curve allows for greater ease in tuning the strings and, combined with strings of different thickness, allows for greater resonance in both the deeper and the higher pitch（音调）ranges. The 21-string guzheng is the most commonly used one, but some traditional musicians still use the 16-string one.

    Sandra Cisneros was born in Chicago in 1954 to a Mexican American family. As the only girl in a family of seven children, she often felt like she had "seven fathers," because her six brothers, as well as her father, tried to control her. Feeling shy and unimportant, she retreated (躲避) into books. Despite her love of reading, she did not do well in elementary school because she was too shy to participate.

    In high school, with the encouragement of one particular teacher, Cisneros improved her grades and worked for the school literary magazine. Her father encouraged her to go to college because he thought it would be a good way for her to find a husband. Cisneros did attend college, but instead of searching for a husband, she found a teacher who helped her join the famous graduate writing program at the University of Iowa. At the university's Writers' Workshop, however, she felt lonely－a Mexican American from a poor neighborhood among students from wealthy families. The feeling of being so different helped Cisneros find her "creative voice".

    "It was not until this moment when I considered myself truly different that my writing acquired a voice. I knew I was a Mexican woman, but I didn't think it had anything to do with why I felt so much imbalance in my life, but it had everything to do with it! That's when I decided I would write about something my classmates couldn't write about."

    Cisneros published her first work, The House on Mango Street, when she was twenty-nine. The book talks about a young Mexican American girl growing up in a Spanish-speaking area in Chicago, much like the neighborhoods in which Cisneros lived as a child. The book won an award in 1985 and has been used in classes from high school to graduate school level. Since then, Cisneros has published several books of poetry, a children's book, and a short-story collection.

    March 3 marks World Hearing Day. This year's theme is “Check your hearing!” Many experts and health organizations, including those who pay attention to the hearing-impaired (听力障碍), are working to help people realize the importance of protecting their hearing and avoid hearing loss.

    When we talk about music, what kind of feelings does it bring? Excitement… and relaxation. But what if the music lasts for hours?

    We interviewed a group of musicians based in Beijing during the weekend. They all said that hours of exposure to loud music can cause discomfort. One added that band members like to play at maximum volume (音量) and forget the harm that loud music can cause. The same thing not only occurs to musicians. It's also not rare for daily users since listening to loud music on loud sound equipment has become a part of modem life. According to the WHO, the practice has put more than a billion people around the world, aged 12-35, at risk of losing their hearing.

    We also interviewed some headphone users in the street, and most of them said that they are not heavy users but admitted they use headphones for hours on the subway and in the office or home. It's easy for these people to gradually increase the volume without awareness, especially in a noisy environment. Often, headphone users fail to realize they're listening to audio at unsafe levels until serious hearing problems suddenly occur.

    There are many reasons for hearing loss, including loud acoustic (听觉的) sources, drug abuse, and diseases. Experts suggest frequent medical checks and prevention measures.

    Whether congenital (先天的) or acquired, loss of hearing is usually irreversible. “Once the hearing loss occurs, it's already too late to be changed back to what it was before,” said Yang Shiming, expert of the Chinese PLA General Hospital. “Early prevention, early identification and early treatment. If everyone could do these things, hearing loss and its harm could be kept to a minimum,” Yang said. Of course, this applies to every one of us.

    Going to university is supposed to be a mind-broadening experience. That statement is probably made in comparison to training for work straight after school. But is it actually true? Jessika Golle of the University of Tubingen, in Germany reports in Psychological Science this week that those who have been to university indeed seem to leave with broader and more curious minds than those who have spent their immediate post-school years in vocational (职业的) training for work. However, it was not the case that university broadened minds. Rather, vocational training for work seemed to have narrowed them. The result is not quite what might be expected.

    Dr. Golle came to this conclusion after she and a team of colleagues studied the early careers of 2,095 German youngsters. The team used two standardized tests to assess their volunteers' personality traits (特点) including openness, conscientiousness (认真) and so on, and attitudes such as realistic, investigative and enterprising twice, once towards the end of each volunteer's time at high school, and then again six years later. Of the original group, 382 had to make a choice between the academic and vocational routes, and it was on these that the researchers focused. University beckoned for 212 of them. The remaining 170 chose vocational training and a job.

    When it came to the second round of tests, Dr. Golle found that the personalities of both groups had not changed significantly. As for changes in altitude, again, none were noticeable in the university group. However, those who had chosen the vocational route showed marked drops in interest in tasks that are investigative and enterprising in nature. And that might restrict their choice of careers.

    The changes in attitude that the researchers recorded were more worrying. Vocational training has always been what Germany prides itself on. If Dr Golle is correct, and changes in attitude brought about by the very training are narrowing people's choices that is indeed a matter worthy of serious consideration.