Music for Humans and Humpback Whales   

    As researchers conclude in Science, the love of music is not only a universal feature of the human species, but is also deeply fixed in complex structures of the human brain, and is far more ancientthan previously suspected.

    In the articles that discuss the field of bio-musicology, the study of the biological basis for the creation and appreciation of music, researchers present various evidence to show that music-making is at once an original human "business", and an art form with skillful performers throughout the animal kingdom.

    The new reports stress that humans hold no copy right on sound wisdom, and that a number of nonhuman animals produce what can rightly be called music, rather than random sound. Recentin-depth analyses of the songs sung by humpback whales show that, even when their organ would allow them to do otherwise, the animals converge on the same choices relating to sounds and beauty, and accept the same laws ofsong composition as those preferred by human musicians, and human ears, everywhere.

    For example, male humpback whales, who spend six months of each year doing little else but singing, use rhythms (节奏) similar to those found in human music and musical phrases of similar length—a few seconds. Whales areable to make sounds over a range of at least seven octaves (八度音阶), yet they tend to move on through a song in beautiful musical intervals, rather than moving forwards madly. They mix thesounds like drums and pure tones in a ratio (比例) which agrees with that heard in much western music. They also usea favorite technique of human singers, the so-called A-B-A form, in which a theme is stated, then developed, and then returned to in slightly revised form.

    Perhaps most impressive, humpback songs contain tunes that rhyme. "This suggests that whales use rhyme in the same way we do: as a technique in poem tohelp them remember complex material," the researchers write.

    The New York Times——Stephen Hawking, the brightest star in the firmament(天空)of science, whose insights shaped modern cosmology(宇宙论)and inspired global audiences in the millions, has died aged 76. His family released a statement in the early hours of Wednesday morning confirming his death at his home in Cambridge. Hawking's children, Lucy, Robert and Tim said in a statement: "We are deeply saddened that our beloved father passed away today." "He was a great scientist and an extraordinary man whose work and legacy will live on for many years to come. His courage and persistence with his brilliance and humor inspired people across the world."

    When Hawking was diagnosed with motor neuronal (神经元的)disease in 1963 at the age of 21, doctors expected him to live for only two more years. But Hawking had a form of the disease that progressed more slowly than usual. He survived for more than half a century and long enough for his disability to define him. His popularity would surely have been diminished without it. Those who live in the shadow of death are often those who live most.

    For Hawking, the early diagnosis of his terminal disease, and witnessing the death from leukaemia of a boy who he knew in hospital, ignited(点燃)a fresh sense of pursue. "Although there was a cloud hanging over my future, I found, to my surprise, that I was enjoying life in the present more than before. I began to make progress with my research," he once said. Embarking (着手) on his career in earnest, he declared: "My goal is simple. It is a complete understanding of the universe, why it is as it is and why it exists at all."

    In 1996, someone found some very old clothes in an old mine in Nevada, USA; they included a pair of dirty old jeans. Today, those jeans are very valuable, and they are now in the Levi Strauss Archival Collection in San Francisco. The jeans, which are over 120 years old, are the oldest pair of Levi's 501 jeans in the world.

    They are almost the same as a modern pair of 501's; there are just some small differences in the detail. For instance, today's 501's have two back pockets, while the old pair just has one.

    In 1853, a young tailor from Germany, called Levi Strauss, began working in San Francisco; Levi sold thick canvas(帆布) to miners; the miners used the canvas to make tents.

    One day, a miner told Levi that he could not find trousers that were strong enough for work in the gold mines. Levi decided to make some trousers out of canvas. Very soon, he sold all the canvas trousers he had made! They were just what miners wanted.

    However, the canvas was rather heavy and stiff(坚硬的). Levi therefore began to look for a different textile(织物). Soon he found a heavy textile from France; it was denim(斜纹粗棉布). Denim was a bit lighter than canvas, but it was very strong. It was ideal for miners.

    However, original denim was almost white, and miners did not like the color! Their denim trousers got dirty as soon as they began working! Levi Strauss therefore decided to use colored denim, and he chose dark blue. In 1873, he began to make denim trousers with metal rivets(铆钉) to make them stronger. “Blue jeans” arrived!

Levi's jeans were so popular that his company got bigger and bigger. Soon, other firms were making blue jeans too. Miners liked them, but so did cowboys and other working men. Blue jeans became classic American working trousers. After the Second World War, jeans became popular all over the world. Today, blue jeans are made all over the world.

    A linguist is always listening, never off-duty. I invited a group of friends round to my house, telling them that I was going to record their speech. I said I was interested in their regional accents, and that it would take only a few minutes. Thus one evening, three people turned up at my house and were shown into my front room. When they saw the room they were a bit anxious, for there was a microphone at head height, with wires leading to a tape-recorder in the middle of the floor. They sat down, rather nervously, and I explained that all I wanted was for them to count from 1 to 20. Then we could relax and have a drink. I turned on the tape-recorder and each in turn counted seriously from 1 to 20 in their best accents. When it was over, I turned the tape-recorder off and brought round the drinks. The rest of the evening was spent in total relaxation. I joined them in talking and joking freely, leaving them only to take a telephone call, which lasted some time.

    As a matter of fact, the microphones were not connected to the tape-recorder in the middle of the room at all but to another one in the kitchen. My friends, having seen the visible tape-recorder turned off, paid no more attention to the microphone which stayed in front of their chairs, only a few inches from their mouths, thus giving excellent sound quality. And my long absence meant that I was able to get as natural a piece of conversation as it would be possible to find I should add, perhaps, that I did tell my friends what had happened to them, after the recording was over, and asked them whether it should be destroyed. None of them wanted to—but for some years after that, it always seemed that when it came to buying drinks, it was I who paid for them. Linguistic research can be a very expensive business.

    The San Diego Center for Children recently added three acres of land to its 9-acre Linda Vista campus. Thanks to the efforts of Assembly member Dr. Shirley Weber, the state sold the land near the Center's main campus. Now the Center, which is the oldest children's nonprofit (非营利的机构) in the region, will be able to provide more treatment and educational foster care (看护) to kids and families who need it most.

    Jewish Family Service of San Diego (JFS) received a $10, 000 grant from the USS Midway Foundation to support its Hand Up Food Pantry (食品贮藏室). "Jewish Family Service works every day to help struggling families and individuals in San Diego move forward and build more stable, secure lives," says JFS CEO Michael Hopkins.

    St. Madeleine Sophie's Center raised more than $16, 000 at its Swing with Santa Golf Tournament (锦标赛). The funds will go toward programs for adults with developmental disabilities. The 5th annual tournament included 18 hotels, food and drinks, and two celebrity appearances: both Santa and Elvis made a dramatic entrance via helicopter.

    Coming Up: Raise money for the 4SRanch-Del Sur Community Foundation and Helen's Closet (壁橱，衣帽间) at the 9th Annual Thank You Run on Thanksgiving Day, November 22. Helen's Closet serves patients with ALS. The distance is 5K with a 1K Fun Run for children aged 8 and under.

    City trees grow faster and die younger than trees in rural forestry, a new study finds. Over their lifetimes, then, urban trees will likely absorb less CO₂ from the air than forest trees.

    As we all know, the earth would be freezing or burning hot without CO₂. However, CO₂ is a greenhouse gas, meaning it traps energy from the sun as/heat. That makes temperatures near the ground rise. Human activities, especially the widespread burning-of fossil(化石)fuels, have been sending extra greenhouse gases into the air. This has led to a rise in average temperatures across the globe.

    Studies had shown forests readily absorb CO₂, but there hadn't been much data on whether city trees grow, die and absorb CO₂ at the same rate as forest trees do. So some researchers decided to find out.

    To figure out how quickly trees were growing, researchers tracked their diameters (the width of their trunks) between 2005 and 2014. A tree's diameter increases as it grows, just as a person's waist size increases as they gain weight. About half the weight of a tree is carbon, research has shown. Most of the rest is water. Over the nine years' tracking, the researchers found city trees absorbed four times as much carbon from the air as forest trees. However, they were twice as likely to die. So over the lifetime of each type of tree, forest trees actually absorbed more CO₂.

    City trees grew faster because they had less competition for light from their neighbors. In a forest，trees tend to grow close together，shading their neighbors. Street trees also benefit from higher levels of nitrogen (氮)in rainwater. Nitrogen helps plants grow. Waste gases from gas-burning cars also contain nitrogen, thus enriching city air with nitrogen. Later, rainwater may wash much of it to the ground. Some street trees may also have better access to water than trees in the country because the underground water pipes can leak.