If you see a group of people dancing and singing on the street or in the railway station,  you don't need to feel surprised．They are a flash mob （快闪族）, which is a group of people who come together suddenly in a public place, do something unusual for a brief period of time,  and then quickly break up．They are usually organized with the help of the Internet or other digital communication network．At a predetermined time, they gather and perform some  distractions（消遣） such as waving their hands and exchanging books, Then, they quickly break up before the police can arrive．Using mobile phones, the flash mob can change its location if the first one has been replaced for any reason．

    Bill Lasik, senior editor of Harper's Magazine, organized the first flash mob in Manhattan in May 2003 and the first successful flash mob came together on June 3, 2003 - after the first try was foiled at Macy's department store．Lasik claimed that the activity was designed to make fun of hipsters （起时髦的人）, and call attention to the cultural atmosphere．

    Flash mob gatherings can sometimes shock people．Such an activity might seem amusing and untrue, but it also might frighten people who are not aware of what is taking place．Undoubtedly, flash mobs can serve as good political tools in any direction．They also have great economic potential, such as using flash mobs to advertise a product．

    The flash mob is now becoming more and more popular．People use it to do many things．For example, in 2009, Michael Jackson's fans took part in a flash mob to remember him．Hundreds of his fans gathered singing and dancing Michael's famous song "Beat It" together．Flash mobs give people from all walks of life an opportunity to come together to create a memory．

    Those who are used to looking through thousands of books in big bookstores may find Japan's Morioka Shoten a little strange. That's because this tiny bookstore that is located in Ginza, Tokyo sells only a single book at a time.

    Opened in May 2015, Morioka Shoten is the brainchild of Yoshiyuki Morioka. The experienced bookseller began his career as a bookstore clerk in Tokyo's Kanda district before branching out to open his own store. It was here while organizing book readings that he realized that customers usually came into the store with one title in mind. Morioka began to wonder if a store could exist by selling many copies of just one single book. In November 2014, he partnered with his two friends, to establish a unique bookstore with the idea of “A Single Room, A Single Book.”

    Like its offering, the bookstore is simple. The selections that are picked by Morioka change weekly and vary widely to attract customers with different interests. Recent choices include The True Deceiver, an award-winning Swedish novel by Tove Jansson, Hans Christian Andersen's Fairy Tales, and a collection of artist Karl Blossfeldt's photography of plants. Morioka has also chosen books written by famous Japanese authors Mimei Ogawa and Akito Akagi.

    To highlight his only offering, Morioka often uses clever methods. For example，when selling a book about flowers, he decorated his shop with the ones that had been mentioned in the book. He also encourages authors to hold talks and discussions so they can connect with customers. Morioka says his goal is for the customers to experience being inside a book, not just a bookstore!

    Risky as the idea might seem, things appear to be going well. Morioka says he has sold over 2,100 books since he opened it. Things can get better considering that his bookstore is becoming increasingly popular not just among the locals but also visitors from other countries.

    Nov. 21 is World Hello Day. It began back in the 1970s as part of an effort to make the world more peaceful. It was created by the United Nations just after the war between Israel and Egypt in 1973. The philosophy (理念) behind it is: Say “Hello” and stop war.

    It sounds like a fine idea, but most of us know that simply saying “Hello” won't bring about world peace. Still, on a smaller range, the simple act of saying hello to someone can make a lot of difference.

    This might not be obvious. After all, it's such a casual thing and requires so little effort. You raise your head to someone as you pass by them in the school corridor (走廊), say “Hello' then it's over.

    Although we might not realize it, a small thing like a greeting can mean a lot to a person. Many people are lonely because they're shy. They find it difficult to communicate with people, even though they want lo. It leads to them feeling cut off.

    On this basis, maybe it's a good idea, not just on Nov. 21, but every day, to remember to say “Hello” to as many people as we can. The stranger who hears your greeting may secretly smile in their heart. You might even make their day.

    Greeting other people is the easiest way to be polite. Politeness is the way we individual humans link up with the rest of the human world outside of our circles of family and friends. Politeness is one of the aspects of culture that make us a society rather than just many individuals living in the same space.

    No one said it better than the French author Joseph Joubert: “Politeness is the flower of humanity''. A “Hello” to a stranger is a small thing, and often neglected (忽视), but through it we can make the world better for another person.

    Adults understand what it feels like to be flooded with objects(物品). Why do we often think that more is more when it comes to kids and their belongings? The good news is that I can help my own kids learn earlier than I did how to live more with less.

    I found the pre-holidays a good time to encourage young children to donate less-used things, and it worked. Because of our efforts, our daughter Georgia did decide to donate a large bag of toys to a little girl whose mother was unable to pay for her holiday due to illness. She chose to sell a few larger objects that were less often used when we promised to put the money into her school fund (基金) (our kindergarten daughter is serious about becoming a doctor).

    For weeks, I've been thinking of bigger, deeper questions: How do we make it a habit for them? And how do we train ourselves to help them live with, need, and use less? Yesterday, I sat with my son, Shepherd, determined to test my own theory on this. I decided to play with him with only one toy for as long as it would keep his interest. I expected that one toy would keep his attention for about five minutes, ten minutes, max. I chose a red rubber ball — simple, universally available. We passed it, he tried to put it in his mouth, he tried bouncing it, rolling it, sitting on it, throwing it. It was totally, completely enough for him. Before I knew it an hour had passed and it was time to move on to lunch.

    We both became absorbed in the simplicity of playing together. He had my full attention and I had his. My little experiment to find joy in a single object worked for both of us.

    Charles Dickens' joy at first arriving in Boston Harbor in 1842 reads like Ebenezer Scrooge's awakening on Christmas morning. Biographer Peter Ackroyd reports that he flew up the steps of the Tremont House Hotel, sprang into the hall and greeted a curious crowd with a bright "Here we are!" He took to the streets that twinkling midnight in his shaggy fur coat, shouting out the names on shop signs, pulling bell-handles of doors as he passed—excited with laughter—and even screamed with (one imagines) astonishment and delight at the sight of the old South Church. He had set at last upon the shores of "the Republic of my imagination."

    Though not quite 30, Dickens was a literary rock star, the most famous writer in the world, who landed like a conquering hero in a country swept up in an extreme "Boz-o-mania". He wrote to his best friend, John Forster, that he didn't know how to describe "the crowds that pour in and out the whole day; of the people that line the streets when I went out; of the cheering when I went to the theatre; letters of congratulations, welcomes of all kinds, balls, dinners, assemblies without end." When Bostonians renamed their city "Boz-town", New Yorkers determined to "outdollar…and outshine them". Their great Boz Ball boasted flags, flowers, a huge portrait of the author with a bald eagle overhead, 22 tableaux (场景) from the great author's works. "If I should live to grow old," Dickens said, "the scenes of this and other evenings will shine as brightly to my dull eyes 50 years hence as now." ①

    The Spirit of the Times wrote of it: "This most extraordinary, fashionable, brilliant, unique, eye-dazzling, heart-delighting, superb, foolish and ridiculous celebration…came off at the Park Theatre, New York, on Monday evening." But, the reporter predicted, "Such were silly-minded Americans, and such the ridiculous respect paid to a foreigner, who will probably return home and write a book abusing the whole nation for the excesses of a few fools." ②

    In fact, Dickens wrote two.

    ③ Apart from the country's great writers, he found Americans ill-mannered and invading his privacy. "I am so surrounded by people that I am exhausted from want of air." Dickens complained to Forster. "I go to church for quiet, and there is a violent rush to the neighborhood of the bench I sit in. I take my seat in a railroad car, and the very conductor won't leave me alone. I can't drink a glass of water without having a hundred people looking down my throat."

    ④ He disliked Americans' table manners and the tobacco spit everywhere he looked—on even the sidewalks of the nation's capital, where he found party politics corrupting everything, its leaders "the lice (虱子) of God's creation," and "despicable (卑鄙的) trickery at elections."

    Even worse, everyone wanted a piece of the action, from Tiffany's selling unauthorized copies of his bust (半身像) , to a barber selling locks of his hair. "I never knew what it was to feel disgust and contempt (蔑视)," Dickens said, "till I traveled in America." When he departed in June, he left behind all notions of an Arcadian realm he now regarded as "a vast counting house" full of nothing but "cheaters and bores." (See: A Christmas Carol.)

    Americans had soured on him, too. Dickens never missed an opportunity to accuse American publishers of openly pirating his novels to sell for mere pennies, with no recompense to the author at all. The press took offense. Within a month of his arrival, Dickens were laughed at for his "foppish" clothing and effeminate hair, described as "no gentleman," "a contemptible Cockney (伦敦佬)."

    The Franklin Institute is one of the oldest and most beloved science museums in the United States.

    Why visit

    In 1824, the Franklin Institute opened in Independence Hall in memory of Benjamin Franklin and his scientific achievements. In 1934, with the construction of the current building and the nearby Eels Planetarium, it became a hands-on science museum.

    Today, it holds the distinction (荣誉) of being Pennsylvania's most visited museum. In the museum's rotunda (圆形厅), a 20 foot-tall marhle statue pays respect to the Founding Father and famous scientist.

    Must-See

    While the entire museum offers interactive (交互式的) fun, highlights include the high-tech Your Brain exhibits (展品), which offers a glimpse into the inner workings of the human brain; Sports Zone, which focuses on the scientific aspects of sports; Two Escape Rooms, where participants solve puzzles and riddles before lime runs out; and the on site Virtual Reality Demonstration Space.

    Pricing

    General Admission to the Franklin Institute includes access to three floors of hands-on science exhibits including permanent (永久的) interactive exhibits, Live Science programs, the Joel N. Bloom Observatory, and one show in the Fels Planetarium. Discounts are given for groups of 15 or more.

    To buy tickets, please click the ticket price to be directed to our online ticketing page where all the ticket prices are available. If you prefer to order tickets over the phone, please call 215-448 1200 (9: 00 a. m.—5: 00 p. m.)

    Member Tickets

    Members of the Franklin Institute receive exclusive (独有的) ticketing benefits, including discounted prices and no service fees. Please select your Membership level before buying member tickets.