A Samoan airline says that it is the world's first carrier to charge passengers by their weight. Samoa Air, which opened in 2012, asks passengers to give their personal weight during booking, which is then charged according to the length of a flight. The customers will also be weighed just before they board the plane.

    "It is believed that all people throughout the world are the same size," Samoa Air CEO Chris Langton said. "Airplanes always run on weight, not seats."

    "There is no doubt in my mind that this is the concept of the future. This is the fairest way of your travelling with your family or yourself."

    Though the airline introduced the plan last November, it caught people's attention last week when the carrier began international flights to neighboring American Samoa.

    Almost at the same time, a Norwegian economist, Bharat Bhatta, published a report suggesting that airlines should charge obese passengers more.

    The Pacific Islands contain some of the world's most common countries for obesity, many ranking in the top 10, according to the World Health Organization (WHO). Samoa is ranked number four, with 59.6 percent of the population considered obese, said the most recent WHO report.

    According to Samoa Air's latest schedule, the airline charges up to $0.57 per kg for flights in Samoa and $1.03 per kg for its only international flight to American Samoa, around 250 miles.

    Children under 12 are charged 75 percent of the adult rate, with fares also based on weight. Any overweight baggage is calculated at the same rate as the passenger's personal weight.

    The plan could actually prove cheaper in some cases, such as for families travelling with small children, and Langton said customer reaction has mainly been "amazingly positive".

    The idea of charging passengers by weight has been hotly discussed before, and in the US some airlines require those who do not fit into a seat comfortably to buy a second seat.

    The TED speaker series features “ideas worth spreading.” With over 1,400 to choose from, we've selected a few that are perfect for students.

    ⒈Larry Smith: Why You Will Fail to Have a Great Career

    We humans have an excellent ability to make excuses for ourselves. Larry Smith, a professor of economics at the University of Waterloo in Canada, tells us why most of us will fail to have a great career. But there is a way out— if you try to pursue your passion.

    ⒉Andy Puddicombe: All It takes Is 10 Mindful Minutes

    Between dance team, volunteering and—oh, right—lectures, your life's crazy factor is about to go way up. In this entertaining and informative talk, mindfulness expert Andy Puddicombe teaches us how to be “more healthy, more mindful and less distracted” by taking just 10 minutes out of the day to be more present.

    ⒊Shane Koyczan: To This DAY For the Bullied and Beautiful

    This talk is sure to stay with you. Shane Koyczan's “To this DAY” is an affecting spoken-word poem about bullying and being different that gained over 10 million views on YouTube. In this talk, Koyczan gives a live reading of the poem, along with some stories about his background.

    ⒋Susan Cain: The power of Introverts(性格内向者)

    Does a cup of tea and a good book sound like a perfect Friday night? In this personal talk, Susan Cain argues that introverts have important talents and abilities. Our culture may value being social and outgoing, but the word needs all kinds.

    Several years ago, my parents, my wife, my son and I ate at one of those restaurants where the menu is written on a blackboard. After a wonderful dinner, the waiter set the check in the middle of the table. That's when it happened：my father did not reach for the check.

    Conversation continued. Finally I realized that I should pick up the check! After hundreds of restaurant meals with my parents, after a lifetime of thinking of my father as the one with dollars, it had all changed. I reached for the check, and my view of myself suddenly changed. I was an adult. I was no longer a kid (child).

Some people mark off (区分) their lives in years, I measure mine in small events. I didn't become a young man at a particular age, like 16, but rather when a kid who wandered in the streets called me "mister". These events in my life are called "milestones"(里程碑).

    There have been other milestones. The cops (policemen) of my youth always seemed big, even huge, and of course they were older than I was. Then one day they were suddenly neither. The day came when I suddenly realized that all the football players in the game I was watching were younger than I was. They were just big kids. With that milestone gone was the dream that someday, maybe I, too, could be a football player. Without ever having reached the hill, I was over it.

    I never thought that I would fall asleep in front of the TV set as my father did. Now it's what I do best. I never thought that I would go to the beach and not swim, yet I spent all of August at the shore and never once went into the ocean. I never thought that I would appreciate opera, but now the combination of voice and orchestra attracts me. I never thought that I would prefer to stay home in the evenings, but now I find myself passing up parties. I used to think that people who watched birds were strange, but this summer I found myself watching them, and maybe I'll get a book on the subject. I feel a strong desire for a religious belief that I never thought I'd want, feel close to my ancestors long gone, and echo my father in arguments with my son. I'll still lose….

    One day I bought a house. One day－What a day!－I became a father, and not too long after that I picked up the check for my own father. I thought then it was a milestone for me. One day, when I was a little older, I realized it was one for him too, another milestone．

    Most American students go to traditional public schools. There are about 88,000 public schools all over the US. Some students attend about 3,000 independent public schools called charter schools.

    Charter schools are self­governing. Private companies operate some charter schools. They are similar in some ways to traditional public schools. They receive tax just as other public schools do. Charter schools must prove to local or state governments that their students are learning. These governments provide the schools with the agreement called a charter that permits them to operate.

    Charter schools are different because they do not have to obey most laws governing traditional public schools. Local, state or federal governments cannot tell them what to teach. Each school can choose its own goals and decide the ways it wants to reach them. Class size is usually smaller than in traditional public schools.

    Governments strongly support charter schools as a way to re­organize public schools that are failing to educate students. But some education agencies and unions oppose charter schools. One teachers' union has just made public the results of the first national study comparing the progress of students in traditional schools and charter schools.

    The American Federation of Teachers criticized the government's delay in releasing the results of the study, which is called the National Assessment of Educational Progress. Union education experts say the study shows that charter school students performed worse in math and reading tests than students in regular public schools.

    Some experts say the study is not a fair look at charter schools because students in those schools have more problems than students in traditional schools. Other education experts say the study results should make charter school officials demand more student progress.

    A strange object was found in a small city called Carlos Spegazzini, just a short drive from the capital city of Buenos Aires.

    When farmer Jose first found an odd scene in his farmland, he began to dig at the object. However, he quickly found himself running to tell his wife. Jose needed more support if he was going to investigate this strange thing.

    Even the dog was hesitant to investigate. Unfamiliar with the object, man's best friend was not about to jump at it with little concern. Therefore, they chose to call in somebody who has a better idea of what to do.

    When the police first showed up, they were just as stumped as Jose. They knew this object was something out of the ordinary. It might even be something extraordinary, so more questions appeared.

    It quickly became apparent, it was time to call in the big guys. That's right; when you find something that appears to be out-of-this-world, it's time to call in those who study the mysteries of the old world.

    Authorities called in archaeologists who jumped at the chance to study the object. They quickly determined one thing was for certain: the ancient big one that left this behind was absolutely massive! The group was unable to move the shell, as it weighed nearly two tons!

    Clearly, this massive beast was not the only of its kind existing in the modem-day world. Similar fossils had been found in the surrounding areas and had even made their way to museums. But what was the ancient beast?

    When Chris moved in across the hall from Norma Cook four years ago in a Los Angeles-area apartment complex, the 31-year-old actor waved to his 85-year-old neighbor for a few weeks before finally knocking on her door and introducing himself. “The day I entered her apartment and spoke with her face to face was the day my life was changed forever,” Chris said.

    He learned that Cook had no family living in California and that she suffered from a long list of illnesses, including leukemia (白血病). The pair quickly became close friends, as Chris took her to doctor's appointments, cooked with her and they ran errands (差事) together. He shared their adventures on social media. But recently, Cook's health declined and she was in and out of the hospital several times. She once spent weeks in the hospital fighting pneumonia and breathing issues.  Eventually Cook was told by one of her doctors that she could no longer live at home unless she had 24-hour care. Because Cook had no money saved to pay her health care costs, Chris started a Go Fund Me account to help cover her bills.

    But caretakers are expensive and Cook quickly ran out of the $34,445 they raised. Knowing her days at home were limited, Chris invited Cook to move in with him to save money.“ She loves it! I do most of my work at home so I am here most of the time to care for her. It only made sense to both of us.” Chris wrote. “She is my adopted grandmother after all and I am her grandson she never had.”

    “Cook still has weekly hospice health care visits and regular visits from caregivers, so any funds raised cover those expenses,” he wrote. Though doctors say Cook's days are very limited, the pair are enjoying spending time together drinking champagne and snuggling with her cat, Hermes, who also made a move.

    “She does not want to change,” Chris told Today. “My apartment was the only place she would have moved. She has strong opinions about where she wants to carry out the rest of her days, and she wants to stay here.” Chris says he feels like the relationship was fate. “Moving her in....it feels as though it was meant to be all along, ” he said. “It's really fulfilling to be there for her.”