Who could have imagined that a treadmill (跑步机) on wheels would one day become a thing? The Lopifit is an unusual means of transportation that allows you to power an electric bicycle by walking on a treadmill. It's actually cooler than it sounds.

The Lopifit founder Bruin Bergmeester said it all started when he asked himself the question "How can I use a treadmill outdoors?" Then he spent the next few years figuring out a way to make it work He eventually came up with a functional design, added an electric engine, and the Lopifit was born. It's similar to an electric bicycle in that the motor only engages when the rider puts power in as well. Only while typical electric bikes are given pedal assist, the Lopifit senses when you walk on the treadmill and use the motor to turn a drive chain under the treadmill, helping you reach a top speed of 17 miles per hour.

To use the Lopifit, simply turn on the battery and use your foot to slide the treadmill backwards and then start the motor. Then get on and enjoy the ride! H you need speed, just walk on the treadmill, and if you want to coast, all you have to do is stay still and admire the view. To stop, you have two hand breaks. The right hand break stops the electric bicycle, while the left one stops the treadmill itself. It sounds and actually looks simple enough to use, but most of those who have tried it say that it takes some time to get used to it.

    The Lopifit first hit the streets in 2014 and, unsurprisingly, became an instant hit. That was actually quite challenging for the company, because it started getting calls for orders, but it was nowhere near ready for mass production. The unique treadmill bicycle became available this year, and the Lopifit is struggling to keep up with demand, despite the high price, $2,115.

    The technique can lead to new ways to produce medicines, the researchers from the universities of Istanbul and Hawaii hope.

    As part of an effort to improve treatments for life-threatening illnesses, a team of scientists have created rabbits that glow(发光) in the dark.

    Their efforts produced two rabbits out of a litter of eight that went from being a normal, fluffy white to glowing green in the dark. The rabbits were born at the University of Istanbul as part of a collaboration（合作） between scientists from universities in Turkey and Hawaii.

    The rabbits glow to show that a genetic manipulation technique can work efficiently, though the specific color is more cosmetic than scientific. "The green is not important at all – it's just a marker to show the experiment can be done successfully," said University of Hawaii associate professor Stefan Moisyadi.

    To produce the glowing effect, researchers injected jellyfish DNA into a mother rabbit's embryos. Those altered embryos（胚胎）. Those altered embryos were then inserted back into the mother. Similar experiments have resulted in glowing cockroaches and cats.

    Eventually, the researchers hope the technique can lead to new ways to produce medicines, Moisyadi said. “The final goal is to develop animals that act as barrier reactive to produce beneficial molecules in their milk that can be cheaply extracted, especially in countries that can't afford big pharma plants that make drugs, that usually cost $1bn to build, and be able to produce their own protein-based medication in animals," Moisyadi said.

    The rabbits are expected to have the same life span as their non-glowing counterparts（副本）, but Moisyadi said he understands people can object to this kind of experimentation involving live animals.

    "To the people against, I say: think about, what are the benefits and what are the injuries?" Moisyadi said. "And if the benefits outweigh the injuries, let's go with the benefits."

    Moisyadi, a native of Turkey who is now with the University of Hawaii, started developing the project in 2006, and researchers are now waiting to see if pregnant sheep produce similar results.

    Who is smarter? A human being or artificial intelligence?

The question swept the world last week when a Google-developed program called AlphaGo defeated the world top player, South Korean Lee Se-dol, 4-1.

    So, what comes next?

    Some people have been arguing that artificial intelligence, or AI in short, will be a bad thing for humans. In an interview with the BBC in 2014, UK scientist Stephen Hawking warned that “The development of full artificial intelligence could mean the end of the human race.”

    So are we really about to live in the world shown in the Terminator movies?

    “Not quite,” answered The Economist. After all, it's not hard to get a computer program to remember and produce facts. What is hard is getting computers to use their knowledge in everyday situations.

    “We think that, for the human being, things like sight and balance(视觉平衡), are natural and ordinary in our life.” Thomas Edison, founder of Motion Figures, a company that is bringing AI to boys, told the newspaper. “But for a robot, to walk up and down just like human beings requires various decisions to be made every second, and it's really difficult to do.”

    As The Economist put it, “We have a long way to go before AI can truly begin to be similar to the human brain, even though the technology can be great.”

    Meanwhile, John Mark off of The New York Times said that researchers should build artificial intelligence to make people more effective.

    “Our fate is in our own hands,” he wrote. “Since technology depends on the values of its creators, we can make human choices that use technology to improve the world.”

    Shop with Your Doc is part of a broader and still growing movement in US medicine to shift the focus away from simply treating disease toward caring for the whole person. It is meant to help people make educated, healthy choices one grocery cart at a time. Across the country, hospitals are setting up food banks and medical schools are putting cooking classes on the curriculum. Nonprofits are connecting medical centers with community resources to ensure that low-income Americans have access to fresh fruits and vegetables.

    For centuries, Western medicine's mission was to cure disease. But over the past generation, two generation, two significant trends are of concern to the medical community, says Timothy Harlan, executive director of Goldring Center for Culinary Medicine at Tulane University in New Orleans. Healthcare costs began to soar (激增), and relatively inexpensive, poor-quality food became more common. "There's a very straightforward link between people improving their diets and improving the condition that they have," Dr. Harlan says.

    The connection drove the medical and nonprofit communities to rethink their approach to health. What emerged was the concept of the "social determinants of health"—the notion of taking into account the biological, physical, and socioeconomic circumstances surrounding a patient. A healthy person isn't just someone who is free from disease, the theory goes; he or she also enjoys "a state of complete mental, physical and social well-being."

    The question the medical community now faces is how to get patients—especially low-income families—to recognize these determinants and make it possible for them to eat and live healthier. In Boston, medical experts responded by creating an on-site pantry (食品室) at Boston Medical Center. Since its founding in 2002, the pantry has evolved into a kind of nutrition center where primary care providers at BMC send patients for food. Today the pantry, which gets 95 percent of its stock from the Greater Boston Food bank, hosts free cooking classes and serves about 7,000 people a month. The Greater Boston Food Bank has also launched its own initiatives, striking partnerships with four community health centers across the state to offer free mobile produce markets. The organization also helped develop toolkits (软件包) that map local pantries, markets that accept government food vouchers, and other resources.

    At Tulane in New Orleans, Harlan is leading the development of a curriculum that combines medicine with the art of food preparation. His philosophy: Doctors who know their way around a kitchen are better at helping their patients. And empowering patients to take charge of their own diets is one way to help them deal with the incredible costs of health care, Harlan says. The curriculum has since been adopted at 35 medical schools around the United States. Chipping away at bad habits is a good place to start getting patients to think about the choices they make for themselves and their families, say Dr Maureen Villasenor, the Orange County pediatrician (儿科医生).

    The year of 2017 marked the 100th birthday of the honoring Chinese-American architect Ieoh Ming Pei.

    From museums to business headquarters, Pei had designed many notable buildings around the world throughout his long professional career. According to the organizers of ''Rethinking Pei: A Centenary Symposium (百年纪念座谈会)" held that year, Pei remained one of the most celebrated architects of the 20th and early 21st centuries.

    The Hong Kong Bank of China Tower is one of his most famous works in Asia. As the bank itself also celebrated its centenary in 2017, it's worth examining the building's historical and architectural background to gain a deeper understanding of the architect who changed Hong Kong's skyline forever.

    The Bank of China Tower (BOC Tower) was completed in 1989, a year which the "New York Times" called, the year of I.M. Pei." For it was in this same year that Pei also completed the glass pyramid of the Louvre Museum in Paris, the Meyerson Symphony Center in Dallas, the Creative Artist Agency Headquarters in Los Angeles, and other marvellous architectures all around the world.

    Pei was commissioned (委托)in 1982 by the Beijing-based Bank of China to design it shead quarters in Hong Kong, but construction did not start until 1985.

    There were many reasons for the delay. One of the biggest was the huge challenges posed by the location. The land parcel had been the address of a Victorian building which served as a prison during Japanese occupation of Hong Kong between 1941 and 1945. This terrible heritage might be one of the reasons why it was dismantled in 1982.

    For I.M. Pei, the challenge of the site was not its past, but its present: the relatively small land parcel was surrounded on three sides by elevated roadways serving high-speed heavy traffic, meaning there was no possible public pedestrian access. Then there was its awkward trapezoidal (梯形)shape and the fact that the site also had a deep north-south height difference.

    Another challenge was the unavoidable comparison of the BOC Tower to the neighboring Hong Kong and Shanghai Bank Headquarters(HSBC), which was also under construction. A spectacular building generously funded, its architect Norman Foster was simply told to create "the best bank building in the world." At that time it was also the world's most expensive building, costing $668 million. The Bank of China Tower's budget was approximately one fifth of the budget allowed by HSBC.

    The Hong Kong government had promised HSBC that no tall buildings would ever be built in front of its headquarters. Besides, in between the site of the Bank of China and the harbor, there were already a few buildings over 70 meters tall blocking views.

    Recognizing that going tall was the only way to create a landmark at this site with his budget, Pei came up with an architectural tower design that was simple, expressive, innovative, and upon its completion, the tallest building outside of America and the fourth tallest in the world.

    After the Bank of China officially moved into the tower in 1991, noted architect and critic Peter Blake visited the building and declared it to be "probably the most innovative skyscraper structure built anywhere to date."

    Now 30 years after the building^'s construction, the Bank of China Tower continues to offer valuable lessons of architectural and structural creativity under the most demanding conditions. Most importantly, the tower has become one of the most important cultural icons for the city of Hong Kong.

    Family fights are never pleasant. Whether you are dealing with a loud sister or a stubborn mom or dad, the situation can be bad. At least that's what we have learned to expect.

    What if it could be different? What if family fights and conflicts could be turned into opportunities to become closer? What if problems could be solved with everyone walking away feeling more deeply cared for and loved?

    Family fighting is, on one level, about power. Someone is telling someone else what to do. In a short moment, emotions can be brought out and the fight is on. You can go down that old road or you can try something different.

    In any fight, you have a need to be listened to and understood. People raise their voices and shout at each other because they're not being listened to. It's totally unconscious. You want your mom or dad to listen and understand. But you always seems to forget the person you're fighting with has the same need to be listened to. So if you can put aside your need for a few minutes, the situation will change quickly. Give the other person some time to express his or her feelings, and you will earn your turn to be listened to.

    And while you are listening, you have to listen for the right information. The best way to do this in emotional situations is to forget most of the words because many people can't express what they are feeling with words alone, especially when they are upset.

    But if the situation starts to get out of hand, it would be wise to just calm down and leave the problem until later because many fights happen at the wrong time. The situation will die down quickly, usually in less than 30 seconds. You can either move on to problem solving or reach an agreement to work on it at a better time.

    This way, everyone will feel respected and listened to, even when there is conflict. Emotions will be understood and respected, and it will bring your family closer together.