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    LONDON－Scientists have found an unusual way to prevent our planet from overheating: move it to a cooler spot. All you have to do is send a few comets (彗星) in the direction of Earth, and its orbit will be changed too. Our world will then be sent spinning into a safer, colder part of the solar system.

    This idea for improving our climate comes from a group of U. S. National Aeronautics and Space Administration (NASA) engineers and American astronomers. They say their plan could add another six billion years to the useful lifetime of our planet－effectively doubling its working life.

    The plan put forward by Dr. Laughlin, and his colleagues Don Korycansky and Fred Adams, needs carefully directing a comet or asteroid so that it passes close by our planet and sends some of its gravitational energy to Earth.

    “Earth's orbital speed would increase as a result and we would move to a higher orbit away from the Sun,” Laughlin said.

    Engineers would then direct their comet so that it passed close to Jupiter or Saturn. The comet would pick up energy from one of these giant planets. Later its orbit would bring it back to Earth, and the process would be repeated.

    In the short term, the plan provides an ideal way to global warming, although the team was actually concerned with a much greater danger. The Sun is certain to heat up in about a billion years and so “seriously compromise” our biosphere (生物圈) －by cooking us.

    That's why the group decided to try to save Earth.

    The plan has one or two worrying aspects, however. For a start, space engineers would have to be very careful about how they directed their asteroid or comet towards Earth. The smallest miscalculation (误算) in orbit could fire it straight at Earth--with deadly consequences.

    There is also the question of the Moon. As the current issue of Scientific American magazine points out, if Earth was pushed out of its current position, it is “most likely the Moon would be stripped away from Earth”. This would greatly change our planet's climate.

    Once upon a time, a daughter complained to her father that her life was unhappy and that she was tired of struggling all the time.

    Her father, a chef, took her to the kitchen. He filled three pots with water and placed each on a high fire. Once the three pots began to boil, he placed potatoes, eggs and coffee beans in them. After 20 minutes, he took them out, putting the potatoes and eggs in a bowl and the coffee in a cup. Turning to his daughter, he said, “Look closer, and touch the potatoes.” She did and noted that they were soft. He then asked her to take an egg and break it. After pulling off the shell, she observed the hard-boiled egg. Finally, he asked her to taste the coffee. Its good smell brought a smile to her face.

    “Father, what does this mean?” she asked. He then explained that the potatoes, the eggs and the coffee beans were in the same adversity (逆境)—the boiling water. However, each one reacted differently.

    The strong and hard potato became soft and weak in boiling water. The egg was fragile, with the thin outer shell protecting its liquid until it was put in the boiling water. Then the inside of the egg became hard. However, the coffee beans were unique. After they were exposed to the boiling water, they changed the water and created something new. “Which one do you want to be like?” he asked. “When adversity knocks on your door, how will you respond?”

    In life, challenges happen to us all, but the only thing that truly matters is what happens within us.

English Conversation

    Leader：Mandi Ashmore english @ iwc­lausanne.org

    We meet on Mondays at 14：30 at the IWC clubhouse. We chat for about an hour and discuss everything. Mandi asks "students" to contact her on Monday to confirm the class as sometimes she needs to cancel for various reasons or occasionally she may choose to hold the class at a different venue (举办地点) or at an earlier time for us to be able to have lunch together.

    French Conversation, Advanced Beginner

    Leader：Marielle Sulmoni frenchconvo@ iwc­lausanne.org

    I'm French (born in Bordeaux) and Swiss by marriage. I hold an advanced beginners' French conversation class on Tuesday afternoons from 14: 30—16: 00. We meet weekly at the clubhouse in a friendly atmosphere. I hope to help you use your knowledge of French, allowing you to speak with no fear of making mistakes, which in time will become fewer and fewer.

    French Language Lab, Beginner

    Leader：Malja Remlinger frenchlab@ iwc­lausanne.org

    The group meets on Thursday afternoons from 15: 00—16: 30 at the clubhouse. The first half of the class is devoted to reading out loud from the book "Easy French Reader", working on proper pronunciation and phrasing. During the second half, we listen to audio recordings from "New French with Ease" and work on oral comprehension.

    French Conversation, Advanced

    Leader：Juliette Brull french@ iwc­lausanne.org

    We meet every Tuesday at the IWC clubhouse from 9: 30—11: 00. Most of our time is devoted to very lively discussions about current events and various topics. We also read a book written by a French author and sometimes we see a French movie.

    Whenever we're introduced to strangers, we make snap decisions about them according to our first impressions. Are they attractive or how much do they earn?

    For most Brits, simply asking someone how much they're worth' financially is considered very impolite. Thankfully, most people are kind enough to drop several hints (暗示)about their relative wealth or successful careers They always post on social media about flying to a meeting for work. They're always wearing clothes with labels big enough to silently scream about how rich they are and how well they're doing.

    It's a worrying trend, and I'm not immune to it. I've felt the warm happiness of knowing I earned more than somebody, and the baseless grey irritation of knowing that I earn less than another. I've checked into places while I know full well that anybody reading it will get jealous.

    It seems as though self-worth is increasingly being tied to the careers we choose and the money we earn. A study in 2013, for example found that nearly 17% of unemployed Americans were depressed compared to almost 6% of those who had a permanent job.

    We need to stop placing so much value on what a person earns. Don't get me wrong-being ambitious is not a fault, and achievements should always be celebrated. But when a person uses their success to judge you negatively it becomes a problem.

    If you want to know what you're really worth, here's a tip: It doesn't have anything to do with your bank account. It's about how many times you've been there for your friends. It's how many times you've been kind to a stranger It's every time you did something unselfish, or told your partner you loved him/her, or treated someone with respect no matter where they were in their own life.

    In the space of just two years, the app Douyin, created by Beijing-based company ByteDance, has gathered more than half a billion users—around 40%of them outside China—who share short videos of themselves lip-syncing (假唱), cooking, dancing or just being silly. What sets ByteDance apart is its success in the social media category, which is controlled by Facebook, Twitter and Snap—all Western companies.

    ByteDance calls itself an artificial intelligence company. It uses machine learning and algorithms (算法) to figure out what people like most and give them more of what they want to see. On Douyin, people can edit and beautify 15-second videos before posting them online. The app has even made a phrase to describe people glued to their customized feeds: "shua Douyin" or "scrolling through Douyin". Last year, the company released TikTok, the overseas version of Douyin. ByteDance's growing video empire has made it the world's fifth biggest app maker. ByteDance says TikTok and Douyin together have more than 500 million monthly active users.

    Investors like ByteDance because its hundreds of millions of users attract a lot of advertising money. The video apps are lucrative because they attract a lot of users in their teens and 20s, who are more generous with the money. ByteDance also makes money through income sharing deals. People on TikTok, for example, can buy digital coins to give to other people on the app—like throwing money in a performer's tip jar. ByteDance takes a cut of those earnings.

    ByteDance's founder and CEO is Zhang Yiming, a 35-year-old former Microsoft employee. People who have worked with Zhang describe him as someone who thinks deeply about technology and spends much of his free time writing code.

    Like Facebook and Twitter, ByteDance is also battling fake news and inappropriate content. ByteDance promises to add thousands more employees to review content on Douyin.

    "When someone is rude to you, it can put you in a bad mood. It may even lead you to be rude to someone else, creating a chain of rudeness. In fact, this troubling chain may even be caused by simply seeing someone be rude to another person. You don't even have to be the target of the had behavior," stated a researcher.

    The researchers worked with 81 persons, with occupations ranging from security to business to medicine, who were asked to complete online surveys over a 10-day period. Participants recorded their moods when they woke up; and in the evening, they described their experiences over the course of that day.

    Each morning the participants also viewed a short video, describing workplace interaction of some kind. Half of the mornings, the video included some kind of rudeness while the other half had some kind of warm interaction in the workplace. Rudeness was conveyed through various means, including a lack of eye contact or unpleasant language.

    Participants who watched the rudeness videos reported seeing or experiencing rudeness during the day, and they were also more likely to escape from fellow employees to avoid being the victims of rudeness themselves. They reported their overall work suffered that day as a result.

    Not all participants were affected by the rudeness videos, however. A few weeks before the study began, the participants completed an evaluation that measured their self-confidence and emotional stability among other things. The participants who scored higher on this evaluation were significantly less likely to be influenced by the rudeness.

    Consequently, one of the researchers recommended that companies hire managers who can limit exposure to rudeness, provide plenty of positive reinforcement (强化) and build a civil workplace environment. This, in turn, could help employees build their confidence levels and help them better handle workplace rudeness.