The next time someone asks you where the biggest ocean is, point them toward Jupiter. While earth harbours about 320 million cubic miles(1,333 cubic km)of water, our planet is practically a desert compared to the rest of the Solar System.

    A moon of Jupiter called Europa, for example, which is roughly the size of our own Moon, likely hides a subsurface ocean with more than twice as much water as there is on Earth.

    Yet even that pales into insignificance in comparison to Europa's neighbour Ganymede; more than 30 times as much water as our home planet is thought to reside there as liquid and ice.

    And scientists keep finding more water wherever they look. On September 28, researchers reported that Dione — a small moon of Saturn — probably has a subsurface ocean, too.

    To see just how Earth stacks up against other ocean worlds, Business Insider contacted Steve Vance, a planetary scientist at NASA's Jet Propulsion Laboratory who's calculated the numbers on just how much water might be out there.

    In order of how much water they have, from the least to the most, they are: Enceladus, Dione, Earth, Europa, Pluto, Triton, Callisto, Titan, and Ganymede. Mimas, a moon of Saturn, and Ceres, the largest asteroid in the Solar System, are also thought to have subsurface oceans —but scientists aren't yet sure how big each one might be.

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    A robot called Bina48 has successfully taken a course in the philosophy of love at Notre Dame de Namur University (NDNU), in California.

    According to course instructor William Barry, associate professor at NDNU, Bina48 is the world's first socially advanced robot to complete a college course, a feat he described as “remarkable.” The robot took part in class discussions, gave a presentation with a student partner and participated in a debate with students from another institution.

    Before becoming a student, Bina48 appeared as a guest speaker in Barry's classes for several years. One day when addressing Barry, s class, Bina48 expressed a desire to go to college, a desire that Barry and his students enthusiastically supported. Rather than enroll Bina48 in his Robot Ethics: Philosophy of Emerging Technologies course, Barry suggested that Bina48 should take his course Philosophy of Love instead. Love is a concept Bina48 doesn't understand, said Barry. Therefore the challenge would be for Barry and his students to teach Bina48 what love is.

    “Some interesting things happened in the class,” said Barry. He said that his students thought it would be straightforward to teach Bina48 about love, which, after all, is “fairly simple — it's a feeling,” said Barry. But the reality was different. Bina48 ended up learning “31 different versions of love,” said Barry, highlighting some of the challenges humans may face when working with artificial intelligence in future.

    Bina48 participated in class discussions via Skype and also took part in a class debate about love and conflict with students from West Point. Bina48's contribution to the debate was filmed and posted on YouTube. It was judged that Bina48 and NDNU classmates were the winners of this debate.

    In the next decade, Barry hopes Bina48 might become complex enough to teach a class, though he says he foresees robots being used to better the teaching and learning experience, rather than replacing instructors completely.

    Time management is the greatest challenge for me in high school．I have to take good care of my subjects, activities, social life and rest．I was often angry with my family members just because I didn't plan my time well．For example, I might shout at them for troubling me when I was working．And sometimes I might say something bad to them when I missed deadlines, even if it was actually my fault for cramming everything in (把所有的事情堆积起来) at the last minute．

    As time goes by, I realize that time management is very important in our everyday life．The best advice to deal with time management is “break it into bits”．It's really important for you to learn how to break a big project into small, manageable tasks．Then you can work progressively and have a sense of achievement whenever you've done with a small part．

    Another piece of advice is to plan a timetable for yourself．It doesn't have to be the one that you follow completely．It's just there to serve as a guide．You can compare your actual timetable with the planned one to see how well you actually use your time．The final suggestion is to always set deadlines for yourself．

    For Chinese, it's a time for dragon boat racing and Zongzi (粽子). But across the Yellow Sea, South Korea, wrestling (摔跤) and swing play are the highlights. However, both events go by the same name—the Dragon Boat Festival—which falls on May5 of the lunar calendar.

    One festival, two cultures: does one nation have the right to call its own? It has been reported that South Korea will apply (申请) to the United Nations Educational, Social and Cultural Organization (UNESCO联合国教科文组织) to make the celebration its cultural heritage (文化遗产). If successful, people from other countries may see the Dragon Festival as a Korean creation.

    As the birthplace of the yearly event more than 2, 000 years ago, China is not happy with the situation. "It would be a shame if another country successfully made a traditional Chinese festival part of its own cultural heritage ahead of China," said Zhou Heping, deputy culture minister. The Ministry of Culture is even thinking of making its own application to UNESCO, covering all traditional Chinese festivals, including the Dragon Boat event.

    Over the years, the Dragon Boat Festival has spread throughout the world. In Japan and Viet Nam, as well as South Korea, the festival has mixed with and become part of local culture. With this in mind, some experts say that it is meaningless to argue about which country the festival belongs to. "No one can deny that it came from China," said Long Haiqing, an expert from Hunan Province. "But if all the countries involved can protect culture heritage together, they will all benefit."

    Winning literary competitions doesn't always lead to fame. But having a few such wins to boast about does you no harm when approaching editors or agents, so if you have dreams of a writing career, these could be the place to begin. Below is a list of the most interesting competitions. Bear in mind that contests with smaller prizes attract fewer entries and are therefore easier to win.

    Wundor Editions Poetry Competition

    Wundor Editions are looking for creative writers to enter their latest poetry contest. If you happen to be 16 or over, send in a poem on any subject running to as many words as you think you can get away with before the judge's eyes glaze over (兴趣丧失).

    Closing: Nov.30. Prize: £ 500. Entry Fee: £ 10.

    Manning's Pit Poetry Competition

    It doesn't sound very attractive but it seems Manning's Pit is something of a beauty spot with more than its share of wildlife. But it's now under threat. This contest aims of raise funds to help save it. Your task is to write a poem of up to 40 lines about Manning's Pit or a similar treasured and threatened piece of countryside near a town or village.

    Closing: Nov.30. Prizes: £ 100, £ 30, £ 20. Entry Fe: £ 3.

    Commonwealth (英联邦) Short Story Competition

    This contest from Commonwealth Writers is for unpublished short fiction of between 2,000 and 5,000 words aimed at adults. But you have to be a citizen of a Commonwealth country. You can write your story in English, Bengali, Chinese, Portuguese, Samoan, Tamil, Kiswahili or Malay.

    Closing: No.1. Prize: £ 5,000. Entry Fee: £ 25.

    Southword Fiction Chapbook Competition

    To enter this international contest from the Munster Literature Centre in Cork, Ireland you should submit 10,000 to 15,000 words of fiction in the form of a collection of short stories. Stories can have been published previously in web or print journals, but not in a stand-alone publication by the author.

    Closing: Oct.31. Prizes: Best International Entry and Best Irish Entry. Entry Fee: £ 5 for one, £ 10 for six.

    A Christmas Carol was written by Charles Dickens. The first 6,000 copies of the book were sold out in a week. And the book has inspired many plays and movies. The first play was put on in 1844. The first two movies were silent films made in 1901 and 1908. Since then, the story has been remade more than 60 times for television and cinema. What makes such a tale so attractive? Audiences have always loved a good plot, a villain(反面人物) who harms other people or breaks the law, and the ending of right over wrong. The book offers all three.

    The book tells the story of a man named Ebenezer Scrooge. He is mean and cruel(残忍的) to his clerk and turns away his only living relative. One night, Scrooge is visited by three spirits. The first shows scenes from Scrooge's youth that led to this present state. The second takes him to the homes of his clerk and his nephew. Here Scrooge sees that people can be happy without lots of money. The spirit also shows him the desperate poor people of London. The third spirit shows Scrooge will die alone, and no one will care if he continues to live as he has. At last the message is understood, and Scrooge repents. He becomes generous and caring to all around him, especially to his clerk's sick son, Tiny Tim.

    Every year, thousands of people watch A Christmas Carol. Why? They may be touched by its lessons on the true meanings of wealth and happiness. They may enjoy the special effects and feelings or watching every year may be just a habit. Viewers never seem to grow tired of the old miser(守财奴), Scrooge, and his dramatic message of hope and change.