Paying a higher price than usual for a ticket to see a film in 3D is the annoyance of many a cinema-goer's life.

    But there may be a benefit to doing so, as a study has found that 3D films exercise the brain and improve short-term functioning in a similar way to brain-training tests.

    The research found that people who watched a movie in 3D improved cognitive (认知) skills, compared to those who watched it in 2D.

    The research was led by neuroscientist(神经学家) Dr Patrick Fagan from Goldsmiths University in London. More than 100 people took part in the experiment, where participants watched Disney film Big Hero 6 in either standard format or RealD 3D.

    They also carried out a brain-training-style test before and after seeing a section from the film. The test covered memory, reaction times and cognitive function and the results were compared later.

    According to the research, which was carried out in partnership with science group Thrill Laboratory, participants experienced a 23 percent increase in cognitive processing, as well as an 11 percent increase in reaction times.

     Fagan said that the results showed enough of an improvement in brain function to suggest that 3D could play a part in improving brain power in the future.

    “These findings are more significant than you might think,” he said. “It is a fact that people are living longer and there is a noticeable decline in cognitive brain function in old age which can worsen future quality of life. There has never been a better time to look at ways to improve brain function. The initial results of this study show that 3D films may potentially play a role in slowing this decline.”

    A second part of the experiment involved those watching the film being fitted with headsets that scanned brain activity and this too showed heightened (加强的) activity when watching 3D. According to the results, participants were seven percent more engaged with what they were watching, adding to argument that 3D movies are more like watching real-life—something Professor Brendan Walker from Thrill Laboratory agreed with.

    “As Professor Brendan Walker's test concluded, 3D films are more attractive and heighten the senses — this, in turn, makes the brain run at quicker speeds,” Dr Fagan said.

    Everyone knows that if a dog's ears are up and its tail is wagging vigorously, it is definitely pleased to see you. but now scientists using a robot have found that the way dogs use their tails is more complicated than we thought, and that dogs which wag them to the left may he more friendly. The animal psychologists discovered that when real dogs approached a life-sized robot dog, they were less cautious about it when it was wagging its tail to the left, while if it was wagging its tail to the right, far fewer dogs approached it in a confident manner.

    In the first experiments, 56 percent of the animals approached the model without hesitation when the tail was wagged to the left, while only 21 percent did so in the other situation. When the researchers excluded (排除) owners from being present, the result were: 31 percent of the dogs approached continuously when the tail was wagging to the left, while only 18 percent did so when it was on the right.

    Animal psychologist Roger Mugford said it added to the growing evidence that does were even more complicated communicators than the animals more closely related to man such as monkeys. He said, “We know that dogs, in a sense, have languages, but it is more complicated because it is not just them wagging their tails, but also giving out chemical displays.”

    He adds, “The research confirms earlier studies suggesting that dogs, like humans, had a left-side preference. If you are going to present a signal to a dog, it is sensible to put it on your left-hand side because that is where dogs, unlike most other animals, tend to look. It is another example of the similarity between dogs and humans. They are a lot more human than we give them credit for.”

    Low-Cost Gifts for Mother's Day

    Gift No. 1

    Offer to be your mother's health friend. Promise to be there for any and all doctor's visits whether a disease or a regular medical check -up. Most mothers always say no need, another set of eyes and ears is always a good idea at a doctor's visit. The best part? This one is free.

    Gift No. 2

    Help your mother organize al1 of her medical records, which include the test results and medical information. Put them all in one place. Be sure to make a list of all of her medicines and what times she takes them. “Having all this information in one place could end up saving your mother's life,” Dr. Marie Savard said.

    Gift No. 3

    Enough sleep is connected to general health conditions. “Buy your mother cotton sheets and comfortable pillows to encourage better sleep.” Savard said. “We know that good sleep is very important to our health.”

    Gift No. 4

    Some gift companies such as Presents for Purpose allow you to pay it forward this Mother's Day by picking gifts in which 10 percent of the price you pay goes to a charity (慈善机构).Gift givers can choose from a wide variety of useful but inexpensive things many of which are “green”—and then choose a meaningful charity from a list. When your mother gets the gift, she will be told that she has helped the chosen charity.

    Karen Bystedt was born in Israel, but lived in London and California as a child. In 1982, as a photography (摄影) student at New York University, she was photographing male models for a book when she came across an ad featuring Andy Warhol, a very famous artist. She thought it would be really great to put him in her book.

    So she called Andy Warhol at his studio in Union Square and asked if she could photograph him.

Two weeks later, Bystedt took a rented Hasselblad camera and lights to Warhol's famed "Factory" on 14th street. She ended up taking 36 pictures, and published two in her book, Not Just Another Pretty Face, published in 1983. Warhol came to its launch (发行) party—and that was the last time she saw him.

    A few years later, she packed the portraits in a box and moved to Los Angeles. But after she'd gotten settled, she couldn't find them. She couldn't remember whether she had given the photos away or just left them in some forgotten storage unit. Either way, she thought they were lost forever.

    In 2011, Bystedt became determined to find the missing films(底片). She spent two weeks going through two old garages, where she had put a bunch of belongings decades before. In a cardboard box, she found ten of the original films, covered in dust. She and a friend spent four months digitizing and cleaning the images up, pixel(像素) by pixel.

    Bystedt was not content to merely publish the unseen photos. She invited contemporary artists to paint over and around her Warhol pictures, breathing new life into her old work. So she began reaching out to artists, seeing if they would be interested in putting their own stamp on the pictures.

    The responses was overwhelming. Bystedt's new exhibit, "The Lost Warhols," opened on May 1, 2018 at 178 Sixth Avenue in Soho, New York, included 66 different interpretations of her portraits from 34 artists.

    What's it like to become a music star with millions of fans? These young artists know the feeling. Over the course of their short careers, they have attracted the attention of the biggest stars in the world and taken home prizes from major shows. For now they're just kids that everyone in music is watching. Check out the next generation of stars below.

    FIFTH HARMONY

    The 1990s was a brilliant period for girl groups. But after that few groups have been able to make much of an influence. This doesn't seem to bother Fifth Harmony, who landed the biggest hit of their career in 2016 with "Work from Home", a pop song that encourages everyone to ask for leave more often. When it climbed to No.4 on the Billboard Hot100, it was the first time that a girl group had entered the top 5 in the past ten years.

    LORDE

    It's been four years since the release of Born Heroine — the hot selling CD that made her a 16-year-old global sensation and the spokeswoman for a new generation of smart, strong-minded, creative female pop artists. She contributed to The Hunger Games soundtrack (插曲) in 2014, and for this time setting foot in Hollywood production also brought her more opportunities in her following career.

    TROYE SIVAN

    You might recognize the rising star Troye Sivan from YouTube, where he's been uploading videos since he was 12 and his channel already has millions of fans, or from the movies, where he played the role of young Wolverine in X-Men Origins: Wolverine.

It was a rainy windy October afternoon. Garth stood outside his house with a wide smile. This was 1 weather for testing his new invention—Umbrella Hat. He could hardly wait to see whether it could keep the rain off. He carefully 2 the hat on his head and started walking 3 along the street. It worked!

Suddenly, three boys in his neighborhood appeared and 4 him. Todd, the biggest one, pulled his Umbrella Hat off his head.

"What's THIS?" he asked.

"It's an Umbrella Hat. You can wear it on rainy days and…" Garth said.

The boys 5 , "Will anyone wear that stupid thing?" Todd threw the hat onto the ground and they ran off.

Garth picked up his Umbrella Hat from the ground in tears. "Maybe Todd was 6 …in reality, who would ever need his invention?" He lowered his head and thought to himself.

Suddenly he 7 and saw a lady looking at him. "I was just leaving my house 8 I saw you and those boys. Are you okay?"

Then she saw the 9 Umbrella Hat and asked, "Er… what's that?"

"It's my Umbrella Hat. I thought of it and made it myself…" answered Garth.

"What a creative 10 you have! Don't ever let stupid boys put you down! Keep inventing and one day you will 11 something really great!" said the lady.

"And you have given me a wonderful 12 ," she continued, "I have a gadget (小器具) shop—Gadgets4U—and I'd like to hold a 13 to find the best young gadget inventor in our town. I will display (展示) three best inventions in my shop. I'm sure you will have a(n) 14 of winning a prize."

Garth was very 15 . Gadgets4U was one of his favorite places and the thought of having his invention displayed in that wonderful place was too exciting for words. He suddenly felt much better and could already feel lots of new ideas coming out, waiting to spring into life!