People are being lured(引诱) onto Facebook with the promise of a fun, 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 data is worth.

    The biggest problem, however, is that the company keeps changing the rules. Early on, you 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 Federal Trade Commission to set principles for social-networking sites. “I think the senator 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 is 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's too high a price to pay.

Visitor Guide to Birch Aquarium General Information

Thank you for respecting the health of our animals and the experience.

◆ Keep voices low in exhibit areas.

◆ No tapping on marine life displays.

◆ As a courtesy, please silence cell phones.

◆ Please use trash and recycling bins.

◆ Birch Aquarium is smoke-free facility.

Photography

    For the safety of our live animals, please do not use flash photography. Visitors may be photographed or videotaped by aquarium staff for professional use, or by the media covering aquarium news. Entry into the aquarium grants permission for use of these images.

Refreshments

    Splash Cafe offers a variety of gourmet, sustainable, and organic sandwiches, snacks, and beverages.

Drinks, food, and gum are not permitted inside the aquarium.

Restrooms ＆ Baby Care

Changing tables are located in both the men's and women's restrooms.

Re-entry

    Please keep your ticket or have hand stamped at the Visitor Service Office if you plan to exit and re-enter the same day , including visits to Splash Coffee Shop.

Visitors with Disabilities

    See the Visitor Information Center for assistance. All exhibits are wheelchair accessible. Wheelchairs are available at no charge.

Emergencies /First Aid/ Lost ＆ Found

Go to the Visitor Service Office or alert the nearest staff member.

Don't Miss!

    Watch a diver hand-feed the fishes—including three species of sharks—during our Kelp Tank Dive Show.

Learn about this unique and beautiful undersea world during a live, interactive presentation. After your visit, view the exhibit at home through our live, online Kelp Cam.

    Yellowstone National Park.☞文章内容an easy day hike or boat trip can turn into a battle for survival.

    Grown-ups are often surprised by how well they remember something they learned as children but have never practiced ever since. A man who has not had a chance to go swimming for years can still swim as well as ever when he gets back in the water. He can get on a bicycle after many years and still ride away. A mother who has not thought about the words for years can teach her daughter the poem that begins "Twinkle, twinkle, little star" or remember the story of Cinderella or Goldilocks and the Three Bears.

    One explanation is the law of overlearning, which can be stated as follows: Once we have learned something, extra learning attempts or tries to increase the length of time we will remember it.

    In childhood we usually continue to practice such skills as swimming, and bicycle riding long after we have learned them. We continue to listen to and remind ourselves of words such as "Twinkle, twinkle, little star" and childhood tales such as Cinderella and Goldilocks. We not only learn but overlearn.

    The multiplication tables(乘法口诀表) are an exception（例外） to the general rule that we forget rather quickly the things that we learn in school, because they are another of the things we overlearn in childhood.

    The law of overlearning explains why cramming(突击学习)for an examination, though it may result in a passing grade, is not a satisfactory way to learn a college course. By cramming, a student may learn the subject well enough to pass the examination, but he is likely soon to forget almost everything he learned. A little overlearning, on the other hand, is really necessary for one's future development.

Top Music Festivals

    Summer festival season is just kicking off, and there is a lot to look forward to in the upcoming months.

Pitchfork Music Festival

    Anyone who likes indie(独立的)music and up-and-coming artists will have an amazing time at the Pitchfork Music Festival in Chicago's Union Park. This is an indie rock haven that explores more underground and lesser-known bands than the other big Chicago summer festival, Lollapalooza.

    Date: July 14—16, 2018

    Location: Chicago, Illinois, USA

    Music Type :Indie rock

    Price: $126- $2, 700

    Essence Music Festival

    No matter what time of the year it is, New Orleans is an incredible place if you love live music. The Essence Music Festival is a celebration of legendary(大名鼎鼎的)artists like Diana Ross, Chaka Khan and Mary J. Blige.

    Date: June 29—July 2, 2018

    Location: New Orleans, Louisiana, USA

    Music Type :R& B，soul, rock

    Price :$75- $365

    Sziget Festival

    Budapest knows how to hold a party, and Sziget is one of the biggest celebrations of music and culture in all of Europe. You can expect to find favorite artists like Bad Religion and Mac DeMarco taking the stages here during this three-day festival.

    Date :August 9-11，2018

    Location:Budapest, Hungary

    Music Type: Indie rock

    Price: $70- $296

    Flow Festival

    The Flow Festival is a great excuse to explore the city of Helsinki. Artists including Lana Del Rey and The XX will be playing, among many others. Come to this festival to enjoy a relaxing atmosphere with an earth-friendly belief.

    Date: August 11-13, 2018

    Location :I Helsinki, Finland

    Music Type :Rock, soul, jazz

    Price: $106- $199

    Machines equipped with artificial intelligence (AI) have performed better than human beings in a high-level test of reading comprehension. Two natural language processing tools received higher test scores than humans in recent exams.

    One of the tools is a product of the American software maker Microsoft. The other was created by the Chinese online seller Alibaba Group. The company said that a deep-learning model developed by its Institute of Data Science of Technologies was the first to beat a human score in the reading comprehension test.

    The test is called the Stanford Question Answering Dataset. It was developed by researchers at Stanford University in California. It has over 100,000 questions and answers. They are based on information found in over 500 stories from the Wikipedia website. The answers to all the questions come from the reading material.

    The AI-powered machines were tested on whether they could provide exact answers to the questions after processing large amounts of information.

    Alibaba said its deep neural (神经的) network model received an “Exact Match” score of 82.44 on the Stanford test. Microsoft reported that a team at Microsoft Research Asia had a score of 82.65. It said the human score on the same questions and answers was 82.304. Many research organizations also appeared on the list—all with scores below 82.

    Alibaba said it has already used its reading comprehension model in different parts of its business. For example, the company is using machines to answer many incoming telephone calls from customers. The company says in the future, the technology could enable machines to guide visitors through museums or provide advice to medical patients.

    Microsoft noted that, overall, people are still much better than machines at understanding the complexity and nuances (细微差别) of language.

    As advances in auto-technology have placed a huge number of self-driving machines on our roads and sidewalks, a side product has materialized in recent years: robot-babysitting.

    In Phoenix, human attendants will remotely monitor Google's upcoming Waymo robot-taxis, using the cars cameras to evaluate and adapt to passenger or road challenges. State safety regulations typically require that auto-vehicles be accompanied at all times by humans. These professionals' job titles range from "robot handler" to "safety driver," but they have essentially the same responsibilities: monitoring robot behavior for safety and performance, and answering questions about the technology. Broadly speaking, robot-babysitting jobs fall under the umbrella of careers in automation, which include maintenance, engineering, and programming.

    However, some observers note that certain kinds of robot-babysitting –-- the kind that is boring and doesn't require much education –-- can make for thankless work. The safety drivers who sit in self-driving cars have described their roles as" exhausting" and "demanding," and many told me about the constant pressure to stay vigilant at all times. "It's incredibly hard to sit in a chair and stare at a computer without doing anything for eight hours," Ramsey said. "But you do not need a Ph.D. to do it." In March 2018, the field of robot babysitting took a beating when a self-driving Uber in Tempe, Arizona, hit a 49-year old named Elaine Herzberg. Dashcam footage showed that Rafaela Vasquez, the car's safety driver, had not been looking at the road when the accident occurred. Investigators are deciding if Vasquez will be charged with murder.

    According to the McKinsey Global Institute, 10 million to 800 million jobs globally could be lost to automation by 2030. In the long term, it's inevitable that robot-babysitters will go the way of elevator operators and lamplighters. But they'll also birth new robot-related roles." A huge number of jobs will be created as auto-vehicles are loosed into the environment,” Ramsey said. In 2016, Bosch started training students from Schoolcraft College, a community college in Michigan, in auto-vehicle repair: Toyota has trained students in maintenance as well. "We might even see a return to low-level jobs where people come and fuel the car for you," Ramsey said. "Until we can wirelessly charge, someone needs to refuel them.” The hardest-to-automate industries, as it happens, are the ones that require looking after humans: childcare, education, health-care aides. Robot babysitters might feel like they have gained the job of the future. But in fact, real babysitters might be better positioned.