While most of us are happy to take the credit when things go well, few of us are willing to take the blame when things go wrong. Rather than trying to hide our shame or embarrassment, experts found that we are simply less aware when our actions result in a negative outcome.

       The research may explain why we often feel it hard to take the blame for our actions. “Our result suggests that people may really experience less responsibility for negative than for positive outcomes，” said Patrick Haggard, leading researcher and professor of the institute of Cognitive Neuroscience at University College London.

      In a series of tests, participants were asked to press a key. A sound then followed, either disapproving, neutral or approving, and they were then asked to estimate the time between the action and when they had heard the sound.

      Researchers found that individuals experienced different levels of responsibility depending on the outcomes. They also discovered they were significantly slower to recognize if their actions had resulted in a bad consequence, compared to when they had done well.

   “Effectively, we have found that we experience a negative outcome differently, not just retell it differently. We make a weaker connection when there is a bad result. And respond much more strongly when something good happens，” said Professor Haggard. When something goes right, everyone wants to take the credit, and when things go wrong, nobody is interested in putting their hands up.

        The researchers say our brain is “very much concerned” with reward, as good results are key to survival. Although our own perception (认知) of whether we are guilty of something or not is changed by the outcomes, this does not provide a defense if we have done something wrong. “Our experience of our own responsibilities can be misleading and can be strongly colored by the outcomes of our actions，” said Professor Haggard. “We have to take responsibility for what we actually do, not just for how we experience things.”

    From July to October every year, about a quarter of the world's blue whales feed in the Pacific Ocean off the coast of California. But the whales currently face a major threat in their favorite feeding area. Ships carrying cargo (货物）sail in the same area at the same time. All too often, the whales' paths and the ships' travel lines overlap (重叠), and a ship will hit a whale.

    According to a new study, these ship strikes have become a serious threat to the overall population of the world's blue whales. Only about 10,000 of the creatures still exist worldwide. Blue whales are the largest known animals ever to live on Earth. Even so, if hit by a container ship, a blue whale will likely die from its injuries.

    In 2007 alone, large ships killed five blue whales in the waters off San Francisco and Los Angeles, California. The National Oceanic and Atmospheric Administration (NOAA) says that because there are so few whales already, losing three to five from the California whale population every year is a significant loss. “The estimated population of blue whales in this part of the Pacific is 2,500”, says Sean Hastings, a NOAA analyst. “So every whale counts toward this species moving off the endangered-species list.”

    Now, marine scientists must figure out how to protect the whales from the giant container ships. One very simple program is already under way in the Santa Barbara Channel, a waterway that separates mainland California from the nearby Channel Islands.

    The Channel Islands National Marine Sanctuary has asked large container ships passing through the area to voluntarily slow down. Sailing slower will allow the ships‟ crew (船员）more time to change course before hitting a whale.

    Several of the world's largest shipping lines are set to participate in the new program. For every ship that passes through the Santa Barbara Channel at or below the reduced speed of 12 knots (海里/小时）, the company that owns the ship will be paid $2,500.

    In its early history, Chicago had floods frequently, especially in the spring, making the streets so muddy that people, horses, and carts got stuck. An old joke that was popular at the time went something like this：A man is stuck up to his waist in a muddy Chicago street. Asked if he needs help, he replies, "No, thanks. I've got a good horse under me."

    The city planner decided to build an underground drainage （排水） system, but there simply wasn't enough difference between the height of the ground level and the water level. The only two options were to lower the Chicago River or raise the city.

    An engineer named Ellis Chesbrough convinced the city that it had no choice but to build the pipes above ground and then cover them with dirt. This raised the level of the city's streets by as much as 12 feet.

    This of course created a new problem: dirt practically buried the first floors of every building in Chicago. Building owners were faced with a choice: either change the first floors of their buildings into basements, and the second stories into main floors, or hoist the entire buildings to meet the new street level. Small wood-frame buildings could be lifted fairly easily. But what about large, heavy structures like Tremont Hotel, which was a six-story brick building?

    That's where George Pullman came in. He had developed some house-moving skills successfully. To lift a big structure like the Tremont Hotel, Pullman would place thousands of jackscrews （螺旋千斤顶） beneath the building's foundation. One man was assigned to operate each section of roughly 10jackscrews.At Pullman's signal each man tured his jackscrew the same amount at the same time, thereby raising the building slowly and evenly. Astonishingly, the Tremont Hotel stay open during the entire operation, and many of its guests didn't even notice anything was happening.

    Some people like to say that every problem has a solution. But in Chicago's early history, every engineering solution seemed to create a new problem. Now that Chicago's waste water was draining efficiently into the Chicago River, the city's next step was to clean the polluted river.

    Maria Sibylla Merian

    Today, children can happily explain how a caterpillar (毛毛虫) turns into a butterfly, thanks to Maria Sibylla Merian. Born in Germany in 1647, Merian was fond of insects, and she began collecting, studying and drawing them when she was as young as 13. It was through her study of caterpillar that she discovered the truth about their life cycles, and she went on to publish two volumes of naturalist research about the life cycles of insects.

    Ada Lovelace

    Ada Lovelace, born in 1815, was the daughter of famous British poet Lord Byron, but she wasn't a poet herself. She was the world's first computer programmer. Lovelace wrote some suggestions as to how to program “computing machines” to calculate a specific sequence of numbers. Besides this, she predicted them to do everything that could possibly be represented by a series of numbers, from producing images to composing music.

    Hedy Lamarr

    She was born in 1914 in Austria and moved to the United States in the hope of going after a film career. In 1942, in the midst of her Hollywood success, she and composer George Antheil received a patent for a device that could change radio signal frequencies. The purpose of the technology was to keep military enemies—especially, the Nazis --from decoding (解码) messages. But it did more than that--it paved the way for much of the wireless technology we use today.

    In my life, my grandfather has influenced me a lot. Ever since I was a little kid, I have always loved sports, especially football. My grandfather also enjoys sports and really loves football. He received a couple of awards in football matches. Through my three years so far in high school, my grandfather has helped me become a better player.

    Another reason why I admire my grandfather so much is because of his strong work ethic(道德). Ever since I was a little boy, my grandfather has taught me and shown me what good work ethic means. He is a good example. When he was a young man, his family owned a small store. He often helped his father run the store. He has also done several jobs in his life. He owned his own store when my mother was a young girl; he helped on a farm; he then had his own painting business. Now he is working at a Wal-Mart.

    Responsibility(责任) is something that I have struggled with in the past. My grandfather, on the other hand, is a very responsible person. That's why I am very responsible now, because of him. When he was in school, he was almost a straight A student. I, on the other hand, don't do so well. One day he had a talk with me about being more responsible. He helped me in school and made me realize how important grades are. Now I get almost As and Bs.

    Now you can see why I admire and respect my grandfather as much as I do. He is the best role model I have, and I will always look up to him.

    Back in 1988, I was working at the University of Bonn in Germany as a research fellow. I took some time off in early May to visit a friend, who was the director of a museum in Viterbo, in central Italy. I set out by train, which crossed the Swiss border to reach Zurich, winding through valleys and along hillsides, and entering tunnels and making its way through the Swiss Alps. The scenery was so beautiful.

    The train then crossed the Italian border before passing through Milan and Florence, then finally stopping in Rome. I was lucky, as my hotel was close to the railway station. The next morning, I had a coffee at a nearby café and eagerly set out to visit as many of the famous Roman landmarks as possible.

    The following day I headed back to the train station, intending to take a short train ride to Viterbo to meet up with my friend. When I arrived at the station and attempted to locate the correct platform, I quickly realized that the station was closed for an upgrade (升级). For a moment my mind went blank and did not know what to do. My biggest problem was my luggage—my suitcase and hand luggage were so heavy that I couldn't move about easily. As I don't speak Italian, I could not ask anyone for instructions. I dragged my suitcase about 100 meters to a nearby motor mechanics. A tall, strong man of about 50 years of age was working there and I excused myself and asked where the nearest station was. I am sure that he did not understand me properly but he could easily guess that I was looking for a station. He replied, but I did not understand.

    He smiled, wiped his hands and said something, which I guessed to mean "come along". So I dragged my suitcase along and followed him. He opened the door of his car, motioned to me to get in and then drove for a few minutes to the next station. I got out, unloaded my luggage, then shook his hand with thanks. He smiled back and drove away.

    There was no time to hug or exchange names  I understood he was busy and in the middle of his work. I was moved so much by his generosity that I have never forgotten him.