People are being lured(引诱)onto Facebook with the promise of a fun and free service without realizing they're paying for it by giving up large amounts of personal information. Facebook then attempts to make money by selling their data to advertisers that want to send targeted messages.

    Most Facebook users don't realize this is happening. Even if they know what the company is up to, they still have no idea what they're paying for Facebook, because people don't really know what their personal details are worth.

    The biggest problem, however, is that the company keeps changing the rules. Early on, you could keep everything private. That was the great thing about Facebook—you could create your own little private network. Last year, the company changed its privacy rules so that many things—your city, your photo, your friends' names—were set, by default(默认), to be shared with everyone on the Internet.

    According to Facebook's vice-- president Elliot Schrage, the company is simply making changes to improve its service, and if people don't share information, they have a “less satisfying experience.”

    Some critics think this is more about Facebook looking to make more money. Its original business model, which involved selling ads and putting them at the side of the page, totally failed. Who wants to look at ads when they're online connecting with their friends?

    The privacy issue has already landed Facebook in hot water in Washington. In April, Senator(议员) Charles Schumer called on Facebook to change its privacy policy. He also urged the Commission to set guidelines for social-networking sites. “I think the senators rightly communicated that we had not been clear about what the new products were and how people could choose to use them or not to use them,” Schrage admits.

    I suspect that whatever Facebook has done so far to invade our privacy, it's only the beginning, which is why I'm considering deactivating(撤销)my account. Facebook is a handy site, but I'm upset by the idea that my information is in the hands of people I don't know. That is too high a price to pay.

    Here are some best sellers of 2018 at Amazon.

    The car

    Fourteen-year-old Terry's parents never pay him much attention. So when they both disappear after one of their all-too-frequent arguments, Terry isn't exactly eager for them to come home. On his own, he fixes an abandoned car. Though he doesn't know much about driving, he gets behind the wheel and heads west, with the intention of visiting an uncle in Oregon. It's an exciting and sometimes dangerous journey. Along the way, he learns a lot about people, about America——and most importantly, about himself.

    The Running Dream

    Jessica thinks her life is over when she loses a leg in a car accident.

    As she struggles to cope with her prosthesis(义肢)and many other difficulties, Jessica develops a close relationship with Rosa, a girl who has a cancer and sees right into Jessica's heart.

    With the support of family, friends, a coach, and her teammates, Jessica is able to run again. But that's not enough for her now. She doesn't just want to cross finish lines herself—she wants to take Rosa with her.

    Have a New Teenager by Friday

    Do you know this person?

    His bedroom looks like a garbage dump.

    She changes clothes three times before breakfast.

    It seems that he／she never agrees with you.

    Congratulations! You have a teenager in your home. But you needn't feel helpless. In fact, you're just five days away from your teenager asking.“ What can I do to help?” Internationally recognized family expert Dr. Kevin Leman will help you get real results—really fast.

    Boy Robot

    Seventeen-year-old Isaak discovers the truth about his origin: a government—made human. But a deadly military force is trying to kill him. He and the other Robots can only find protection from the Underground—a secret network of Robots and humans working together to ensure a coexistent future. Isaak must decide whether to hold on to his humanity and face possible death or to embrace his true nature in order to survive.

    If you are interested in any of the books, click here for further information:

    https://www.amazon.com/.

    While IQ (Intelligence Quotient) tells you how smart you are. EQ (Emotional Quotient) tells you how well you use your smartness. Professor Salovery, the psychologist who created the term, EQ, says that it is IQ that gets you hired but it is EQ that gets you promoted.

    Supported by his research, he suggested that when predicting future successes, a person's brainpower, as measured by IQ tests, might actually matter less than a person's character, or EQ. Professor Salovery may be correct. For example, have you ever wondered why some of the best and smartest students in your class end up failing exams? Perhaps it is because of their EQ. People often make the mistake of thinking that EQ is the opposite of IQ. It is not. Although it is hoped that people have both high EQs and IQs, there is little doubt that those with low EQs have a hard time surviving in life.

    For a long time, researchers discussed if a person's IQ could be raised. The geneticists said no, while the social scientists said yes. Furthermore, the social scientists said that it was possible to improve a person's EQ, particularly in terms of "people skills", such as understanding and communication.

    Recently, a professor released the findings of a study on senior high school students. When some normal students were introduced to some disabled students, they found that afterwards they were more willing to help people in difficulties. At the same time, there was a marked change in the disabled students' attitudes. They became more positive about their disabilities and were more eager to try new things. People with high EQs often have positive attitudes towards life and are open to different ideas, so they tend to be more creative in their thinking. Please remember that having a high IQ is helpful but having a high EQ might even be more helpful.

    Hawaii, 2nd Edition

    Original price: $ 22.95

    Sale price: $ 20. 95

    Summary: Hawaii is one of the world's premier(最著名的) vacation destinations, and this practical and fact- packed book shows why. Like other Traveler guides, it's a treasure of special features - walking and driving tours, in-depth Hawaiian history, a sample of the best of each island's activities, plus a selection of hotels and restaurants in every price range.

    Be the Pack Leader

    Original price: $ 25.95

    Sale price: $ 18. 95

    Summary: Bestselling author Cesar Millan takes principles of dog psychology a step further, showing you how to develop the calm energy of a successful leader and use it to improve your dog's life and your own life. With practical tips and techniques, Cesar helps you understand and read your dog's energy as well as your own energy so that you can take your connection with your dog to the next level.

    Celebrate Hanukkah

    Original price: $ 15.85

    Sale price: $7.85

    Summary: The US astronaut Jeffrey Hoffman brought a menorah(烛台) and a dreidel(陀螺)on his Space Shuttle mission in 1993. Hoffman observed the traditional spinning of the dreidel, but wisely left the menorah unlit in several thousand liters of rocket fuel. Also included is the author's sure-to-please potato pancakes' recipe.

    A New Perspective(观点) of Earth

    Original price: $26.85

    Sale price: $ 20.85

    Summary: The author Benjamin Grant describes a unique collection of satellite images of the earth that offer an unexpected look at humanity. More than 200 images of industry, agriculture, architecture and nature highlight incredible patterns while also revealing a deeper story about human influence. This extraordinary photographic journey around our planet captures the sense of wonder gained from a new, aerial point and creates a perspective of the earth as it has never been seen before.

A living robot has been created out of frog skin cells. Xenobots, named after the frog species Xenopus laevis that the cells come from, were first described last year. Now the team behind the robots has improved their design and demonstrated new capabilities.

To create the xenobots, Michael Levin at Tufts University in Massachusetts and his colleagues obtained tissue from 24-hour-old frog embryos after very small physical operation. Where the previous version relied on the contraction of heart muscle cells to move them forward by pushing off surfaces, these new xenobots swim around faster. They also live between three and seven days longer than their previous generation, which only lasted about seven days, and have the ability to sense their surroundings to some extent, turning red when exposed to blue light.

"The fundamental finding here is that when you free skin cells from their normal context, and you give them a chance to build other things than what they normally build," says Levin. "To me, one of the most exciting things here is that they are plastic. This idea that even normal cells, not genetically modified, are in fact capable of building something completely different."

Because they are created from cells, the xenobots eventually break apart and are totally biodegradable, says team member Douglas Blackiston, also at Tufts University. He therefore hopes that they can be used for biomedical and environmental applications.

Previous attempts at creating living robots, such as a wirelessly controlled cockroach, have involved dealing with live animals, raising ethical concerns. Xenobots differ from these because they are made entirely of living cells. "The approach here is maybe ethically the least problematic because everything starts with cells. They have no neurons, so it's not an animal," says Auke ljspeert at the Swiss Federal Institute of Technology at Lausanne, who wasn't involved in the research. "It's really cells, so I find it maybe the cleanest way."