For most caffeine(咖啡因)consumers, its main benefit is that it helps you get more done. This is what makes it unusual, says Stephen Braun, author of Buzz: The Science and Lore of Alcohol and Caffeine.

    “Its appeal is that it helps us earn more money,” he adds. “What makes it different from other drugs is that it's used as a productivity tool –– not for pleasure.”

    Many of history's creative minds have also been connected with a large amount of caffeine consumption (消耗).

    According to one biographer, the French novelist and playwright Balzac drank as many as 50 cups of coffee a day. “Were it not for coffee one could not write, which is to say one could not live,” he once insisted.

    For seven years, the film-maker David Lynch ate at the same Los Angeles diner every day, drinking up to seven sweetened cups of coffee “with lots of sugar” in one sitting, which he said would guarantee that “lots of ideas” arrived.

    Ludwig van Beethoven was said to have painstakingly counted out exactly 60 coffee beans per cup when he brewed(煮)coffee.

    Perhaps recent tales of caffeine excess (过量) featured the singer Robbie Williams, who reportedly consumed 36 cups of black coffee and 20 cans of Red Bull a day.

    It is the routine task itself, as much as the stimulating(刺激的)effects of caffeine, that makes the process so important, says Mason Currey, author of Daily Rituals: How Artists Work. “A lot of artists use the process of making coffee as a gateway to the creative process,” he adds. “You need to get into the right mindset to do that sort of work, and the preparation process provides a focus.”

    One problem with attempting to control caffeine, says Braun, is that it affects everyone differently –– it is impossible to work out a “safe” limit that works for everyone. “Eventually, you have to become your own scientist –– there isn't an alternative to careful self-experimentation,” he says.

    Photos of eight-year-old Wang Fuman, nicknamed by “Snowflake Boy” in Yun Nan, shared by his principal on Tuesday, showed the boy has a red face from the low temperatures and apparently did not wear enough clothes to keep warm. He also suffered from frostbite. He stood alone with his white hair and eyebrows while other classmates behind were clearly amused and laughing. The picture drew widespread attention around the whole world. Many netizens were sympathetic to the boy's difficulties, with many Mircoblog users giving comments under the report.

    Just after the report, a donation of 100,000 yuan was sent to his Primary School. Constantly, help still pours in for the Chinese boy. But the local authorities call on others to pay attention to other similar rural areas and give them timely aid. In China, there are still so many children just like Fuman living by himself with parents migrating to cities for lively hood.

    Boy's hair is completely FROZEN after he walked an hour to school on a harsh winter morning in rural (and there was no heating when he got there)

    The third-grade pupil in Yunnan, China, walks 2.8 miles to school every day. He braved minus nine degree weather yesterday morning to sit an exam. His hair and eyebrows had turned into icicles when he aimed at the school.

—Abstracted from Daily Post

    I have tears in my eyes reading this… Poor little soul doesn't even have a hat or gloves, and I can't imagine how cold he must have felt. But he did it! Wish the little boy all good things in life. Hope he become a brilliant adult and success in life and happiness.

—Mng.PL, Mauntius, 19 hours ago

    This kid is amazing. If I were him, I probably would have frozen to death. And this is why China will rule the world soon! He'll fight a war tomorrow for his motherland!!! Take note you poor snowflake students of the UK. If this happened in the UK, they would arrive to find the school closed. Our kids are too soft!!!

—Honest John, Birmingham, 18 hours ago

    He walked an hour in that weather and still got 99% for the math exam. Wow. With such an attitude and perseverance, I hope that he succeeds in life and gets all the good things that he deserves. Now he is not a snowflake.

—Lucial Cathey, Liverpool, 15 hours ago

    An autonomous vehicle designed for making local commerce deliveries was uncovered by Nuro. The vehicle is about the height of an SW but far narrower than a typical car. The electric car features four outside compartments（暗格）—two on each side -to hold separate deliveries. Each compartment can be tailored to a specific use, such as cooking a pizza or refrigerating a package.

    “We can use self-driving technology to deliver anything, anytime, anywhere for basically all local goods and services,” Nuro co-founder Dave Ferguson said. “Consumers used to be okay with two-week paid shipping. It became two-week free delivery, followed by one week, two days, and the same day. Now same-day delivery isn't fast enough for some customers.”

    Nuro isn't alone in building robots for local commerce deliveries. Earlier this month, Toyota, a Japanese car company, uncovered a concept vehicle that could be used for package delivery. A handful of startups—including Starship Technologies, Marble and Dispatch—are testing small robots for deliveries on sidewalks.

    Nuro's vehicle will likely face legal hurdles. Fully autonomous vehicles without a test diver aren't legal in California today, and many companies have shifted testing o states where regulators are more welcoming of autonomous vehicles, such as Arizona.

    Nuro expects to face fewer challenges because it doesn't carry passengers. Nuro's narrow size may also be helpful when navigating streets and avoiding pedestrians. The vehicle isn't equipped with any special features to communicate with pedestrians or other road users. Some companies have tested and patented solutions such as digital screens that signal the car's next move. Ferguson said his team conducted studies and found that such techniques could confuse people. Nuro believes it's better to make sure the car performs predictably, so that human drivers know what to expect from it.

    “We feel by creating this new technology that's going to enable this last mile delivery, we're going to be creating new markets and doing things that previously weren't possible,” Ferguson said. “This is not swapping out jobs with robots. It's creating new markets. There will definitely be new employment opportunities.”

Finding a Job

    The impression you make at the beginning of an interview is very important. Employers often decide to hire someone in the first three minutes of the interview. They judge you by your appearance, attitude and manners.

    A friendly smile when you walk into the room is important. A smile shows a confident and positive attitude. When you introduce yourself, make eye contact with the interviewer. Some interviewers offer a handshake. Others don't.

    Try to be as natural as possible. But pay attention to your body language. The way you sit, walk, gesture, use your voice and show feelings on your face is all part of your body language. It makes the interviewer know how you feel about yourself and the situation you are in. Are you feeling positively about yourself？Your abilities? Your interest in the job？

    Speak clearly and loudly enough. Show interest and enthusiasm in your voice. When you speak, look at the interviewer. Also, don't say negative things about yourself, or former employer.

    Listen to questions carefully. If you don't understand a question, ask the interviewer to repeat or explain:

    "I'm sorry, but I didn't catch that."

    "Almost everyone is nervous in a job interview. Interviewers know that. They don't expect you to be totally calm and relaxed. But they expect you to try to control your nervousness. They expect you to show confidence in your ability to do the job.

    At the end of the interview, thank the interviewer for her or his time. It's a good idea to send a short thank-you letter right after the interview, or deliver it by hand.

    Phone the company if you have not heard anything after one week. Ask if they have made a decision about the job.

Good luck!

    People who have seen Trisha Seifried Woodall with her cats say that she has a magic touch. Most people don't know anyone who can order a cat to jump on a table, sit for two minutes, and then jump to the floor and walk backward.

    Ms. Seifried Woodall has taught her cats to do all these tricks -- and many more. At her training center. Got Pet-ential, cats learn tricks for TV and magazine ads. Some of her cats have appeared on bags of cat food.

    When Ms. Seifried Woodall gets a cat, she first learns what that cat likes and doesn't like. "Some cats like to stay close to the ground, so I'll teach them how to stand behind me, and walk with me," she says. "Other cats, like high places, so they'll learn how to jump on my bent knee and then safely leap to my shoulder."

    Ms. Seifried Woodall grew up in a family with many pets, and she was first paid to work with animals when she was 18. At a summer job at an amusement park, she learned how to train a few of the animals for performances. She continued to train and learn about animals for 20 years before starting her own animal-training center.

    Ms. Seifried Woodall is proud of the skills her cats have learned, but she is also proud that her center's cats are healthy and social. She believes her cats enjoy learning new tricks.

    In Ms. Seifried Woodall's experience, no breed (品种) of cat is easier to train than others. All of her cats came from shelters. They have become pets in her home.

    Like most animal trainers, Ms. Seifried Woodall uses a reward system. Cats that are successful during training get food or a new toy. A cat that doesn't enjoy eating or playing will probably not be interested in being trained. She never scolds (责骂) them. "Cats need a lot of encouragement when they are performing, she says." I say good job or that s right several times during a single minute."