One day, I received a call from a colleague. He was about to give a student a zero for his answer to a physical problem, while the student claimed a perfect score. I was elected as their arbiter（仲裁人）. I read the examination problem: “Show how it is possible to determine the height of a tall building with the aid of a barometer（气压计）. ”The student had answered; "Take the barometer to the top of the building, attach a long rope to it, lower it to the street, and then bring it up, measuring the length of the rope. The length of it is the height of the building.”

    The student had really answered the question completely, but the answer didn't confirm his competence in physics. I suggested the student try again. I gave him six minutes to answer the question, warning that the answer should show some knowledge of physics. Five minutes later, he said he had many answers and dashed off one, which read：“Take the barometer to the top of the building and lean over the edge of the roof. Drop the barometer, timing its fall with a stopwatch. Then, use the physical formula（公式）to calculate the height of the building.”

    At this point, my colleague had to accept it, and then the student made almost full marks. I couldn't help asking the student what the other answers were. He listed many others, and then added, "Probably the best is to take the barometer to the administrator and said to him, ‘Sir, here is a fine barometer. If you tell me the height of the building, I will give it to you.”,

    Then, I asked the student if he really did not know the conventional answer to this question. He admitted that he did, but said that he was fed up with high school and college instructors trying to teach him how to think.

    The name of the student was Bohr who later was famous all over the world. He won the Nobel Prize for Physics in 1922.

    Welcome to Orlando! It has a host of attractions and activities. Ready to join the party and plan a visit to O-Town? Just print out our list that suits your style.

    Universal Orlando's Islands of Adventure

    The addition of The Wizarding World of Harry Potter was among the list of must-visits for theme park enthusiasts. Each of the park's “islands” — Toon Lagoon, Jurassic Park, and The Lost Continent — has unique appeal in the form of rides and interactive attractions. (407-363-8000)

    Gatorland

    It bills itself as “Orlando's best half-day attraction”, for in a city people are limited by their time and money. Catch Gatorland's animals and handler(驯化) shows in the afternoon. There's a nighttime run as well, including the Gator Night Shine and various activities. Gatorland ranks as a comparative theme-park bargain. (407-855-5496)

    Aquatica

    One of the city's most unique water parks, Aquatica is a fantastical world of twisting, turning rides and sparkling white sand beaches. And if you enjoy a side of terror with your water-park fun, be sure to check out Ihu's Breakaway Falls. This towering slide is an eight-story mind-bender of a plummet(垂直落下) that is not for the weak heart. The less exciting will still find plenty of fun splashing from one giant wave pool to another or drifting down the lazy river through a world of unusual fish. You can also watch the black-and-white Commerson's dolphins underwater. (407-351-3600)

    Warbird Adventures

    Few attractions are more hands-on historic than Warbird Adventures, which offers thrill-seekers the opportunity to fly like the hero aces of World War II in the North American T-6 Texan. Flights range from 15 minutes to an hour. A visit to the nearby Kissimmee Air Museum is a wonderful way to round out the experience. (407-870-7366)

    Babysitter Wanted

    I am seeking a babysitter for my 6-month-old son. A few hours on Saturdays and Sundays to help me and then other times as needed. He or she should be over 18, responsible, loving, warm, and have some experience in caring for babies. This position also suits a college student with experience looking for a part-time job. The pay is $10 an hour.

    If this sounds like a good job to you, please reply to rebecharv@aol.com or call 800-4964.

    Office Manager Wanted

    Our company is looking for a full-time experienced manager to run the business. Strong skills in organisation and business management are required for this position. The office manager will be responsible for keeping financial（金融的）records, so he or she should be familiar with computers.

    Please reply to jim@californiaaquatics.com or call 800-6978 to apply.

    Waiter/ Waitress Wanted

    A restaurant is looking for an experienced waiter/ waitress. Knowledge of wines and experience in dining are necessary. Must work well under pressure and understand the basics of fine dining and customer service.

    If you're interested, please contact us at job-tkupe-1329358152@craigslist.org to apply.

    This is a part-time job.

    Office Cleaner Wanted

    Looking for a Part-time job? A position in the Mississauga area needs an office cleaner! Part-time 4 hours a day from 10:00 am – 2:00 pm.

    Duties include:

    Cleaning the washrooms

    Cleaning the furniture

    Sweeping the floors

    Other general cleaning

    Some experience is necessary. Pay: $15 per hour

    Reply to: job-p3b7u-1365632206@craigslist.org or call 800-8197.

    Qing-Feng Steamed Dumpling Shop. Daniang Dumpling. McDonald's. What do these companies have in common?

    Well, besides all being fast food chains, their logos are all red. And it's not a coincidence. Color is one of the many that companies use to connect with customers. And if fast food wasn't hard enough, those red logos might make it even harder to ignore.

    The average human can see ten million colors, but red is special. It's one of the first colors our ancient ancestors thought important enough to name. Early human languages were uncolorful. There were words for “black” and “white” and “red” but not much else.

    As a result, we have a deeper connection to red than any other color and we react to it in certain ways that actually play to fast food companies' advantage. For starters, researchers have found that red can cause a sense of urgency. On top of that, it also has an ability to whet (刺激) our appetites. And when you pair those two together, you've got the perfect recipe to attract hungry customers who want food, fast.

    So the red logo isn't just a welcoming sign. It's a seduction (诱惑) for your brain. Now, it's unclear why red makes us feel this way. But perhaps it has something to do with where the word comes from. Many ancient languages first named red from their word for “blood”. But red's bloody beginning has transformed. During medieval times, for example, red was worn by royals as a status symbol. And today, brides in many parts of India are married in red dress.

    In fact, red is one of the few colors today that cultures all over the world view positively. And it's no wonder companies attach so much importance to their logos. After all, we're a visual species. Despite having five senses, 80% of the information our brains process on a daily basis comes from our eyes. And according to marketing company WebPageFX, nearly 85% of consumers say the main reason they choose one product over the other is color.

    Just think what McDonald's would look like in blue, green, or pink! It's just not the same, right?

    A T-shirt a day has kept unemployment away for an American man who is making about $85,000 a year by selling advertising space on his shirt.

    Jason Sadler, 26, was once a former marketing expert from Florida. In 2008, he founded his own company, "I wear your shirt", with the idea to wear a T-shirt supplied by any company and then use social media tools to develop the company. Sadler charges the "face value" of the day for his human billboard (广告牌) service. So January 1 costs $1, while December 31 costs $365. He said this may not sound like a lot, but it adds up to $66,795 a year if he sells out every day, which he did this year. He also sells monthly sponsorships(赞助) for $1,500, adding another $18,000 to his income.

    "I walk around, take photos, wear the shirt all day … I blog about those photos, I put them up on Twitter, I change my Facebook introduction…and then I do a YouTube video. I made about $83,000 this year," he told Reuters Television. The average U.S income is about $615 a week or about $32,000 a year, according to the U.S government.

    Sadler has already begun to plan for his year 2010. He is making services larger by hiring another person to wear a shirt a day on the west coast of the United States.

    Want to explore new cultures, meet new people and do something worthwhile at the same time? You can do all the three with Global Development Association(GDA). Whatever stage of life you're at, wherever you go and whatever project you do in GDA, you'll create positive changes in a poor and remote community(社区).

    We work with volunteers of all ages and backgrounds. Most of our volunteers are aged 17-24. Now we need volunteer managers aged 25-75. They are extremely important in the safe and effective running of our programmes. We have such roles as project managers, mountain leaders, and communication officers.

    Depending on which role you choose, you could help to increase a community's access to safe drinking water, or help to protect valuable local cultures. You might also design an adventure challenge to train young volunteers.

    Not only will you help our young volunteers to develop personally, you'll also learn new skills and increase your cultural awareness. You may have chances to meet new people who'll become your lifelong friends.

    This summer we have both 4-week and 7-week programmes:

    GDA ensures that volunteers work with community members and local project partners where our help is needed. All our projects aim to promote the development of poor and remote communities.

    There is no other chance like a GDA programme. Join us as a volunteer manager to develop your own skills while bringing benefits to the communities.

    Find out more about joining a GDA programme:

    Website:www.glodeve.org

    Email:humanresources@glodeve.org