Smart Cameras to Help You Take Better Photos

    Google Clips

    One of the latest to launch (发布) is Google Clips. It is designed to be put somewhere in a room to take pictures by itself. It can also be attached to an object or a person's clothing.

    Google says machine learning helps the camera choose the best times and situations for taking pictures and videos. Interested buyers can join a waiting list to be informed when it is on the market.

    GoPro Hero

    GoPro also uses machine learning to power its QuikStories characteristic. This tool takes existing photos and videos and automatically (自动地) creates a finished video piece, complete with music and effects.

    Snap Spectacles

    Messaging app Snapchat sells a pair of sunglasses with a built-in camera that can record short videos with the push of a button. Snap Inc. says the product, called Spectacles, is designed to “catch the moment, without taking you out of it.”

    The glasses can record short video clips that can be shared with Snapchat users. Snap Inc. has started selling its Spectacles sunglasses online in the United States.

    Apple iPhone X

    Apple's new iPhone X is being launched with its new Face ID system that it says will unlock the phone just by having the user look at it. This replaces the Touch ID on previous ones that used a fingerprint to unlock the phone.

    Apple says the system works by projecting more than 30,000 dots on the face to create a kind of map. Apple says its facial recognition is even secure enough to allow payments through its Apple Pay service.

    From the modern London Eye to the historic Tower of London, below are London's most visited tourist attractions. Many of London's top attractions are free, making them affordable places to learn about some culture. Whether you prefer history or modern art, you'll find it at one of these must-visit spots.

British Museum

    The world-famous British Museum exhibits the works of man from prehistoric to modern times, from around the world. The most interesting and exciting parts include the Rosetta Stone, the Parthenon sculptures (雕塑) and the mummies in the Ancient Egypt collection. Some exhibitions require tickets.

National Gallery

    The greatest and most beautiful building of Trafalgar Square, London's National Gallery is a vast space filled with Western European paintings from the 13th to the 19th centuries. In this impressive art gallery you can find works by masters such as Van Gogh, da Vinci, Botticelli, Constable, Renoir, Titian and Stubbs. Some exhibitions require tickets.

Tate Modern

    Sitting on the banks of the Thames is the Tate Modern, Britain's national museum of modern and contemporary (当代的) art. Its unique shape is due to it being a power station before. The gallery's restaurants offer wonderful views across the city. Some exhibitions require tickets.

Coca-Cola London Eye

    The Coca-Cola London Eye is a major feature of London's skyline. It has some of London's best views from its 32 capsules, each weighing 10 tonnes and holding up to 25 people. Climb aboard for a breathtaking experience, with an unforgettable view of more than 55 of London's most famous landmarks — all in just 30 minutes!

Madame Tussauds

    At Madame Tussauds, you'll come face-to-face with some of the world's most famous faces. From Shakespeare to Lady Gaga you'll meet influential figures from show business, sport, politics and even royalty. Strike a pose with Usain Bolt, get close to One Direction or receive a once-in-a-lifetime audience with Her Majesty the Queen.

    Peyto Lake, Canada

    Located in Banff National Park. Canada's first national park Peyto Lake is one of the most wonderful lakes in the world. What makes it truly beautiful is its unique greenish-blue color, and placement in the Canadian Rockies. Named after trail guide Bill Peyto, this lake is located at a height of 1,860m.

    Entry Details: $9.80 adult, $8.30 senior, $4.90 youth, and $19.60 family.

    Best Time to Visit: July, August, and September

    Lake Argentino, Argentina

    Located in the Patagonian province in Argentina, the lake is truly beautiful. Surrounded by glaciers and snow-covered mountains, the lake presents visual delights like none other. With a maximum depth of 500 meters, it's the biggest freshwater lake in Argentina. The lake is famous for fishing.

    Entry Details: $15~$20, changes as per season, but entry for tourists above 70 years of age is always free.

    Best Time to Visit: December to March, and late November

    Lake Baikal, Russia

    Being the world's oldest and deepest lake, Baikal is about 395 meters long, 49 meters wide and 1,637meters deep. It holds more water than the Five Great Lakes of America combined, and is thus the largest freshwater lake globally. Located in the south Russian region of Siberia, a trip to view this lake is a trip of a lifetime!

    Entry Details: No Entrance fee here

    Best Time to Visit; March to April

    Lake Como, Italy

    Considered one of the most beautiful lakes in Europe, Lake Como has attracted tourists since Roman times. Located in Lombardy, Como is one of the deepest lakes in Europe. Surrounded by vil1as and palaces, this lake has attracted some of the wealthiest. Today, many celebrities(名人) have houses here. Here you can enjoy water sports, take a flight over the lake, or try skiing during the winters-every tourist has something he's going to like!

Entry Details: Free

    Best Time to Visit: July and September

    In its early history, Chicago had floods frequently, especially in the spring, making the streets so muddy that people, horses, and carts got stuck. An old joke that was popular at the time went something like this：A man is stuck up to his waist in a muddy Chicago street. Asked if he needs help, he replies, "No, thanks. I've got a good horse under me."

    The city planner decided to build an underground drainage （排水） system, but there simply wasn't enough difference between the height of the ground level and the water level. The only two options were to lower the Chicago River or raise the city.

    An engineer named Ellis Chesbrough convinced the city that it had no choice but to build the pipes above ground and then cover them with dirt. This raised the level of the city's streets by as much as 12 feet.

    This of course created a new problem: dirt practically buried the first floors of every building in Chicago. Building owners were faced with a choice: either change the first floors of their buildings into basements, and the second stories into main floors, or hoist the entire buildings to meet the new street level. Small wood-frame buildings could be lifted fairly easily. But what about large, heavy structures like Tremont Hotel, which was a six-story brick building?

    That's where George Pullman came in. He had developed some house-moving skills successfully. To lift a big structure like the Tremont Hotel, Pullman would place thousands of jackscrews （螺旋千斤顶） beneath the building's foundation. One man was assigned to operate each section of roughly 10jackscrews.At Pullman's signal each man tured his jackscrew the same amount at the same time, thereby raising the building slowly and evenly. Astonishingly, the Tremont Hotel stay open during the entire operation, and many of its guests didn't even notice anything was happening.

    Some people like to say that every problem has a solution. But in Chicago's early history, every engineering solution seemed to create a new problem. Now that Chicago's waste water was draining efficiently into the Chicago River, the city's next step was to clean the polluted river.

    Claude Monet, Pablo Picasso and Leonardo da Vinci ... the art world has never lacked talent. And now, a new painter is ready to join the list although this one isn't even human.

    Next month, auction house Christie's Prints and Multiples will make history by offering the first piece of art created by artificial intelligence (AI) for sale. The painting is a portrait of a man called Edmond De Bela- my, and is expected to be sold for up to $10,000.

    The work, which features a man with a mysterious look on his face, was created by software developed by the French art group Obvious. Laugero-Lasserre, an art collector, called the work "grotesque and amazing at the same time". This isn't the first example of Al-produced artwork, as AI has already been used to write poems and compose .songs. However, many people doubt whether it should be called art at all.

According to Russian writer Leo Tolstroy (1828 -1910), art is about creating emotion (情感). It's "a means of …joining people together in the same feelings' he once said.

So, if the emotion behind art is what makes it, the ability to create and use tools is what makes human Icings different from other species. And as a tool itself, the AI technology used to create the portrait is the result of a lot of effort made by several designers. Together, they "fed" the AI a huge collection of paintings from the 14th to the 18th centuries, until it was able to work out how to make similar paintings of its own.

    The introduction of AI art could be the beginning of a new artistic movement. However, not everyone is ready to welcome these high-tech artists just yet.

    "The human mind is what's behind the AI technology. And the human mind is not a cold, hard fact," said Oscar Schwartz, a professor of AI. "Rather, it in something that's created with our opinions and something that changes over

    Many people find that music lifts their spirits. Now a new research shows that music therapy (疗法) can be a useful treatment for depression.

    The finding that music therapy offers a real medical benefit to depression sufferers comes from a review by the Cochrane Collaboration, a non-profit group that reviews health care issues. Some studies looked at the effects of providing music therapy to patients who were receiving drug treatment for depression. Others compared music therapy to traditional talk therapy. In four out of five of the trials, music therapy worked better at easing depression symptoms than therapies that did not employ music, the researchers found.

    “While the evidence came from a few small studies, it suggests that this is an area that is well worth further investigation.” said lead author Anna Maratos. Ms. Maratos notes that music therapy might be particularly useful for adolescents who may reject a traditional form of counseling. Some older patients also may not be comfortable talking about their feelings but do tend to express themselves through songs.

    There are two main types of music therapy. Sometimes, a therapist will listen to music with a patient and talk about the feelings or memories that it arouses. In another form, the therapist is a skilled musician and will improvise (即兴创作) music with the patient. If the patient doesn't play an instrument, he or she might be given a simple percussion (击打) instrument and the therapist will play along.

    Other studies have shown a benefit from music therapy in the treatment for dementia, learning disabilities, strokes and pain management during labor and birth. The problem is that there isn't very much high-quality research. "It doesn't easily attract serious research funding. It's difficult to do high-quality, large-scale trials." said Ms. Maratos.