Watching a 3D movie can more than double the concentration powers and cognitive(认知) processing of children, a new research claims.

    A study made by visual technology firm RealD and led by child psychologist Dr. Richard Woolfson suggests that children aged between 7 and 14 experienced twice the cognitive processing speed and performed better in testing after watching 20 minutes of a 3D film. This is despite suggestions that attention spans(时期) in children have shortened in the last decade due to unlimited to access to entertainment, including on-demand TV, gaming and social media. A 2015 study claimed that watching 3D content had a similar effect to brain-training exercises.

    Consumer psychologist Mr. Fagan said that the increased stimulation(刺激) found in watching something in 3D "exercised" the brain and improved performance in the short term. "3D films can play the role of ‘brain-training' games and help to make children ‘smarter' in the short term," he said. "The shortening of response times after watching 3D was almost three times as big as that gained from watching 2D; in other words, 3D helps children process aspects of their environment more quickly. This is likely to be because 3D is a mentally stimulating experience which ‘gets the brain's juices flowing'."

    The experiment saw children given a range of cognitive tests before watching 20 minutes of a movie in either 2D or 3D and being tested again. The results showed those who saw the 3D content reacted faster and performed bettering the second round of testing. Mental engagement also rose by 13% among 3D watchers. Child psychologist Dr. Woolfson added that “supportive parenting” and regularly listening to classical music can also aid a child's memory.

    After spending three months in and out of the hospital with numerous health issues, Donald Austin had his leg partially cut off. He was relieved to finally be able to go home after just four days recovering from the operation. When he reached his porch, though, the joy drained away.

    Donald thought he'd be able to make it up the steps to the front door on crutches, but his strength and balance weren't as strong as he'd hoped. The wheelchair was too heavy for his wife, Jennifer Austin, to lift up the steps, even when his mom offered a hand to help. Donald ended up on the concrete, the family feeling totally at a loss. They were out of strength and out of options. Just then, a car caught the family's eyes. It had driven past once but was slowly circling back. The stranger, Steven Smith, pulled up and asked if he could help. Relieved, the family watched Smith lift Donald inside and lay him safely on a couch.

    But the Good Samaritan knew there was more to do. Smith figured this wasn't the only time Donald would need to climb those steps. So the next day, Smith, who's an ordinary worker, came back and asked if he could build a ramp(斜坡) in front of the house. With his dad and a couple more helping hands, Smith set up a ramp over the steps to make the home wheelchair accessible. The act of kindness brought the family to tears.

    “This stranger has saved the day for us twice within 24 hours. He also brightened our spirits that had become increasingly dimmed over the difficult months,” Jennifer wrote on Facebook. “There is a sense of optimism back in our home because of his kindness.”

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    We walked in so quietly that the nurse at the desk didn't even lift her eyes from the book. Mum pointed at a big chair by the door and I knew she wanted me to sit down. Then, Mum took off her hat and coat and gave them to me to hold. She walked quietly to the small room by the lift and took out a wet mop. She pushed the mop past the desk and as the nurse looked up, Mum nodded and said, “Very dirty floors.” The nurse answered. She looked at Mum strangely and said, “But aren't you working late?”

    Mum just pushed harder, each swipe of the mop taking her farther and farther down the hall. I watched until she was out of sight and the nurse had turned back to writing in the big book. After a long time Mum came back. Her eyes were shining.

She quickly put the mop back and took my hand. As we turned to go out of the door, Mum bowed politely to the nurse and said, “Thank you.”

    Outside, Mum told me, “Grandma is fine. No fever.”

    “You saw her, Mum?”

    “Of course. I told her about the hospital rules, and she will not expect us until tomorrow. Dad will stop worrying as well. It's a fine hospital. But such floors! A mop is not good. You need a brush.”

    Around the world, 62 million girls are not in school. The White House's Let Girls Learn effort aims to change that.

    At 13, Hawa Abdulai Yorke left her family's home, in Ghana, Africa, to live with an aunt who promised to send her to school. Instead, the aunt put Yorke to work as her maid. Determined to go to school, Yorke returned home and began selling water in a nearby city to raise
money for her education. She did that for three years. What hurt most was that her father had the money to pay the school fees. But he chose to spend the money on a motorcycle.

    Yorke's story is familiar to girls growing up in Ghana. There, a girl's place is in the home. Educating girls is considered a waste of money.

    “It happens more than it should, where parents have money to send their girls to school but choose not to,” says Ryan Roach, a Peace Corps volunteer in Ghana, where nearly 55% of girls are not enrolled in secondary school. “Cultural beliefs say education is not a wise investment(投资)”

    The White House's Let Girls Learn is working to change this view of girls' education, in Ghana and in countries worldwide. First Lady Michelle Obama says parents have to be persuaded that girls' education is a better investment than marriage or household labor. A World Bank study backs that up. It shows that for every year of secondary-school education, a girl's earning power increases by 18%.

    Today, Let Girls Learn works in 13 countries, and there are plans to expand the program. Recently, Let Girls Learn hosted a 24-hour event at which girls in different parts of Ghana joined Peace Corps volunteers, tech experts, and university students to brainstorm creative solutions for the barriers to girls' education. Yorke's team came up with an idea for an app that sends a recorded message to parents' phones from a Ghanian celebrity about the benefits of girls 
attending school.

    Yorke, now 22, is about to finish high school. Thanks to Let Girls Learn, she plans to attend college and study computer science. She says working alongside women college students at the Let Girls Learn event strengthened her determination. “I'm focused on my books,” says Yorke. "I know if I study hard, I, too, can go to the university and live a happy life."

    Still seeking a destination for your weekend break? There are some places which are probably a mere walk away from your college.

    King's Art Centre

    A day at the Centre could mean a visit to an exhibition of the work of one of the most interesting contemporary artists on show anywhere. This weekend sees the opening of an exhibition of four local artists.

    You could attend a class teaching you how to learn from the masters' or get more creative with paint—free of charge.

    The Centre also runs two life drawing classes for which there is a small fee.

    The Botanic Garden

    The Garden has over 8,000 plant species；it holds the research and teaching collection of living plants for Cambridge University.

    The multibranched Torch Aloe here is impressive. The African plant produces red flowers above bluegreen leaves, and is not one to miss.

    Get to the display house to see Dionaea muscipula a plant more commonly known as the Venus Flytrap that feeds on insects and other small animals.

    The Garden is also a place for wildlife enthusiasts. Look for grass snakes in the lake. A snake called ‘Hissing Sid' is regularly seen lying in the heat of the warm sun.

    Byron's Pool

    Many stories surround Lord Byron's time as a student of Cambridge University.  Arriving in 1805, he wrote a letter complaining that it was a place of "mess and drunkenness". However, it seems as though Byron did manage to pass the time pleasantly enough. I'm not just talking about the pet bear he kept in his rooms. He spent a great deal of time walking in the village.

    It is also said that on occasion Byron swam naked by moonlight in the lake, which is now known as Byron's Pool. A couple of miles past Grantchester in the south Cambridgeshire countryside, the pool is surrounded by beautiful circular paths around the fields. The cries of invisible birds make the trip a lovely experience and on the way home you can drop into the village for afternoon tea. If you don't trust me, then perhaps you'll take it from Virginia Woolf—over a century after Byron, she reportedly took a trip to swim in the same pool.