Jim Denevan is an amazing artist whose work is admired by all, but owned by none—that's because all of Jim's art is created on an unusual canvas (画布)—the soft sand. He sometimes spends days working on a piece, only to see it washed away by the sea or a storm and that is just the way he likes it.

    Denevan discovered his artistic talents about ten years ago, when he was wandering aimlessly on the beach with a stick. He ended up drawing a 12-foot-long fish. Since then, Jim has traveled over 1,800 miles while creating over 600 pieces of sand art.

    Over the years, his drawings have become bigger, but the tools he uses haven't changed—All he needs is a stick, a garden rake (耙) and most importantly, his lively imagination!

    Just like any good artist, Jim is quite particular about the “quality” of his canvas, sometimes walking for miles, in search of perfect sand. His latest piece of work, which is also the world's largest freelance drawing(自由绘画), was created in the desert sands of Nevada. It took Jim three trips, eight days and over 100 miles of walking to create this 3-mile work of art. It took the storm just one night to destroy it! However, Jim says he actually enjoys watching the waves or rain wash his paintings away.

    Jim's art has become very popular over the years and was even the topic of a documentary named “Sandman” in 2005. Jim Denevan is not just about art in the sand—he is also an excellent chef (厨师) and founder of an organization called “Outstanding in the Field", whose motto is to celebrate food at its source. Accordingly, group dining events are held outdoors on farms, with the diners being treated to a delicious meal. The events, which are held in different farms throughout America, are always sold out the minute the schedule is announced.

    Two Chinese sisters have landed a dream trip to Buckingham Palace and the Peppa Pig World theme park in the UK. Lately, their mother helped them express their wish online to meet Queen Elizabeth II, which not only caught millions of social media users' attention but also the attention of the British ambassador (大使) to China.

    Five-year-old twins Mi Ai and Mi Ni, who live in Beijing, appeared in a video on social media platform Weibo last week, where they spoke of their love of British cartoon Peppa Pig and their keen interest to visit the Buckingham Palace. Mi Ni said she and her sister wanted to visit the gardens at Buckingham Palace, just like Peppa Pig and her friends did in the cartoon program.

    The British Ambassador answered their call with her own video, inviting the twins to her house in Beijing. "Hello Mi Ni and Mi Ai," she said. "I'm the British ambassador. I'd like you to come and visit me in my house in Beijing and we can perhaps have tea and cookies in a British style." The twins accepted the ambassador's invitation and joined her for a traditional afternoon tea on Monday, when they ate cake and drew pictures of their favorite characters from Peppa Pig.

    The ambassador has made arrangements for the girls and their parents to tour the UK. They are going to tour the studios where Peppa Pig is made, take a trip to Peppa Pig World in Hampshire and visit Buckingham Palace. The queen has not yet said if she will have time to welcome the girls.

    The Peppa Pig series, introduced in the mid-2000s in China, has become extremely popular among Chinese children and adults. As this year is the Year of the Pig according to Chinese tradition, the country has set to mark the Chinese New Year with a film starring Peppa Pig, where audiences can see a number of Chinese cultural elements (元素).

Choose Your One-Day-Tours!

Tour A—Bath &Stonehenge including entrance fees to the ancient Roman bathrooms and Stonehenge—￡37 until 26 March and ￡39 thereafter.

Visit the city with over 2, 000 years of history and Bath Abbey, the Royal Crescent and the Costume Museum. Stonehenge is one of the world's most famous prehistoric monuments dating back over 5, 000 years.

    Tour B—Oxford & Stratford including entrance fees to the University St Mary's Church Tower and Anne Hathaway's—￡32 until 12 March and ￡36 thereafter.

Oxford: Includes a guided tour of England's oldest university city and colleges. Look over the "city of dreaming spires (尖顶)" from St Mary's Church Tower.

    Stratford: Includes a guided tour exploring much of the Shakespeare wonder.

    Tour C—Windsor Castle &Hampton Court including entrance fees to Hampton Court Palace—￡34 until 11 March and ￡37 thereafter.

    Includes a guided tour of Windsor and Hampton Court, Henry VIII's favorite palace. Free time to visit Windsor Castle (entrance fees not included). With 500 years of history, Hampton Court was once the home of four Kings and one Queen. Now this former royal palace is open to the public as a major tourist attraction. Visit the palace and its various historic gardens, which include the famous maze (迷宫) where it is easy to get lost!

    Tour D—Cambridge including entrance fees to the Tower of Saint Mary the Great—￡33 until 18 March and ￡37 thereafter.

    Includes a guided tour of Cambridge, the famous university town, and the gardens of the 18th century.

When Jeff Sparkman draws his cartoon superheroes with coloured pencils, he often has to ask other people to tell him what colour his masked men turned out to be because he's colour blind. Now, a new smart phone application (app) can help him figure out what colours he's using and how the picture looks to most everyone else.

The DanKam app, available for iPhone and Android for $2.99, is an application that turns the vague (模糊的) colours that one percent of the population with colour-blindness see into the "true" colours as everyone else sees them. In America, an estimated 32 million colour-blind Americans—95% are males—can soon have their life improved.

"DanKam takes the stream of data coming in through the phone's camera and changes the colours slightly so they fall within the range that people who are colour-blind see," developed Dan Kaminsky told CNET. He came up with the idea after watching the 2009 film Star Trek with a colour-blind friend.

It was then that he got to know more about colourblindness like its varying types and degrees. A vast majority, for instance, have trouble seeing red or green due to a genetic defect (遗传缺陷), Blue-yellow colourblindness, however, is rarer and develops later in life because of aging, illness or head injuries, etc. He started experimenting with one of the most common representations of points in the RGB colour model. What the DanKam app attempts to do is clean up the colour space of the image or video signal so that colours can be visible to those suffering from viewing problems. "You can adjust the app to fit your needs. There is a range and not everyone who is colour-blind sees things the same," Says Kaminsky.

Sparkman, a copy editor at CNET, tried out the app and was pleased with the result: "It would be useful for dressing for a job interview," he said. But using it for his art is "the most practical application". It worked well on LED and other lights on electronic gadgets (器械), which means Sparkman can now identify the power light on his computer display green.

Growing evidence shows that dancing can boost brain health and help manage neurocognitive (神经认知的) disorders. So what is it about dance that's different from other regular exercises? 

Helena Blumen, a cognitive (认知的) scientist at Albert Einstein College of Medicine, says the complex (复杂的) mental multitasking that dance requires involves various parts of the brain at the same time. Basically, dancing requires more brain power than simpler repetitive (重复的) exercises. 

While scientists are still learning how the mechanisms of dancing work in the brain, a clearer picture is beginning to appear. Researchers at Otto von Guericke University in Magdeburg, Germany, did MRI scans of older adults who had participated in one of two programs over a six -month period. One group practiced dance and the other did a traditional exercise program with cycling and strength training. While both groups improved their level of physical fitness, the dancers grew more white and gray matter in the parts of the brain responsible for cognitive processes. Both white and gray matter typically decline as we get older, making communication in the brain slow. 

Imagine your brain is a city with loads of roads. The researchers assume the changes brought by dancing contribute to brain plasticity, which is like the city's ability to build new roads, repair old ones or even change the direction of traffic based on how often the routes are used and what the city needs. 

In addition to the physical and neurological (神经学的) benefits, dance can also help people accept what their bodies can and can't do. Dawnia Baynes, 44, developed multiple sclerosis (MS) after her body lose all feeling from the chest down. She recently joined an online dance program for people with MS. Not only has it improved her range of motion, it has also helped her overcome her fear of being judged for how she moves. 

"To see other people moving is like I'm moving," she says, "and knowing that I don't have to be professional and super technical in my dancing makes me comfortable with where I am right now."