【推荐1】Nowadays, countries are eager to get more electric cars on the road because moving away from gas-powered vehicles is vital to fighting climate change. China says that most new vehicles sold by 2035 will be electric. The United Kingdom will ban new gas-powered cars in 2030. One of the world’s major automakers, General Motors (GM), announced that it would stop selling gas-powered cars by 2035.

The key to an electric future is batteries. Automakers are racing to pack the most energy into the smallest one. The lithium-ion battery is what powers our mobile devices, which can be recharged again and again. Making these batteries has an environmental cost. Lithium is taken from the earth, like the oil used to make gasoline. But the long-term cost is much smaller. “Once you burn gasoline, you can’t recycle it,” says Jessika Trancik, a researcher at the Massachusetts Institute of Technology. “But when you use up a battery, you can still recycle the material.”

It’s up to governments to make electric cars accessible to everyone. National policies can help. In the United States, an electric Chevy Volt costs about $35, 000. Trancik says charging stations must also be made widely available. As part of an effort to fight climate change, America plans to build half a million of them in the US by 2030. She hopes enough charging stations will be built soon. “It’s important to put chargers where many different people can have access to them,” she says, “not just wealthier people.”

Last year, almost 5% of approximately 67 million new cars sold world widewere electric. For Venkat Viswanathan, a professor of Mechanical Engineering at Carnegie Mellon University, green electricity is part of the solution to climate change, and electric cars are just the beginning. He sees a future of solar powered homes and electric flying cars. “Soon, a plug in vehicle might be as cheap as a gas-powered car. It is now abundantly clear that electric is the future,” he says. “It will be a totally new world.”

【推荐2】The AlphaGo program’s victory is an example of how smart computers have become. But can artificial intelligence (AI) machines act ethically(合乎道德地), meaning can they be honest and fair?

One example of AI is driverless cars. They are already on California roads, so it is not too soon to ask whether we can program a machine to act ethically. As driverless cars improve, they will save lives. They will make fewer mistakes than human drivers do. Sometimes, however, they will face a choice between lives. Should the cars be programmed to make a sudden turn to avoid hitting a child? What if the only risk is damage to the car itself not to the passengers?

Perhaps there will be lessons to learn from driverless cars, but they are not super-intelligent beings. Teaching ethics to a machine even more intelligent than we are will be the bigger challenge.

About the same time as AlphaGo’s victory, Microsoft’s ‘chatbot’ took a bad turn. The software, named Taylor, was designed to answer messages from people aged 18-24. Taylor was supposed to be able to learn from the messages she received. She was designed to slowly improve her ability to handle conversations, but some people were teaching Taylor racist ideas. When she started saying nice things about Hitler, Microsoft turned her off and deleted her ugliest messages.

AlphaGo’s victory and Taylor’s defeat happened at about the same time. This should be a warning to us. It is one thing to use AI within a game with clear rules and clear goals. It is something very different to use AI in the real world.

Eric Schmidt is one of the bosses of Google, which owns AlphoGo. He thinks AI will be positive for humans. He said people will be the winner, whatever the outcome. Advances in AI will make human beings smarter, more able and “just better human beings.”

【推荐3】The study on facial recognition technology (FRT) began in the late 1960s. In the late 1990s, FRT began to enter the market gradually but its accuracy had a long way to go though it cost governments a lot, which made it unpopular at that time. FRT attracted wide attention after September，11, 2001 and it has been widely used now.

Recognizing the potential abuse in the use of FRT, Microsoft is asking the U. S. government to study facial recognition (FR) and keep a dose watch over its use. Personally, I hold this is a positive job that Microsoft is doing. FRT has grown to be so powerful. It can be used to identify people in photos, video feeds，and of course in person, without their permission.

Mr. Bradford Smith, Microsoft’s president, suggests that “governments around the world should examine commercial uses of FR.” The European Union (EU) is ahead of others in this aspect, thanks to its tough new data protection law, which forbids companies to gather the biometric (生物特征) data needed for facial recognition without first obtaining users, permission.

San Francisco has become the first city in the USA to forbid using facial recognition software. And Oakland discussed a similar rule last month. San Francisco has said that police and other public departments cannot use FRT. San Francisco already uses surveillance (监视) cameras for reading car number plates and police officers wear body cameras. San Francisco official Aaron Peskin said FRT was like “Big Brother” from the book 1984 by George Orwell. The phrase Big Brother is now used to describe attempts to increase surveillance and “spy” on citizens. Mr. Peskin said, “We can have good policing without being a police state.”

【推荐2】Laughter is a kind of universal body language that’s shared by people of all nationalities, skin colors, cultures and traditions. But did you know that the ability to tell genuine laughter apart from fake laughter also transcends (超越) cultures?

Greg Bryant, a professor of communication at the University of California, Los Angeles, US, published a study in Psychological Science in late July in which be found that people are able to identify real laughter through slight variations in sound.

In the study, 884 people from 21 countries were asked to listen to random recordings of laughter. Some of the recordings were made up of spontaneous (自然的) laughs, while others were made by people who were asked to laugh on command.

The study showed that people around the world have the ability to pick out real laughter, although their abilities vary from country to country. Residents of the Samoan Islands, an island chain in the central South Pacific, were particularly good at it, correctly identifying real laughter 56 percent of the time. According to Bryant, people from smaller, less industrialized nations “are more accurate in identifying a natural smile” because they rely heavily on emotional engagement (联系) in order to predict others’ behavior and create stronger social relationships.

But how do people from different cultures detect natural laughter so easily? And what traits does real laughter have? As Professor Jessica Wolf of the University of California, Los Angeles, told the Association for Psychological Science, in real laughter, our vocal chords (声带) “produce qualities such as higher pitch (音调) and volume (音量), as well as faster bursts of non-articulate (不清晰的) sounds and more non-tonal (无语调的) noise”

By contrast, fake laughter will “sound like speech”. According to Science Daily, fake laughter is controlled by the same brain system that controls the lips and tongue.

Bryant further explained that this system has an imitative (模仿的) capacity (能力), saying “with this speech system, you can make a lot of different noises, including crying, laughter or a shriek (尖叫) of pain. That’s where fake laughter comes from.”

So that’s something to think about the next time one of your friends laughs at something you said. Will you be able to tell if it’s real or fake?

【推荐3】Chiang Mai has just been named the top city in Asia as well as ranked （排名）second for the World's Best Cities in the readers' survey of Travel + Leisure World's Best Awards 2016. The influential magazine also ranked Bangkok at No. 5 in Asia and No. 14 in the world.

Readers were asked to judge Asian destinations on various factors （因素）including the local culture, food. shopping and landmarks as well as the friendliness of the people and overall value for money. The cities were then ranked out of 100 will） Chiang Mai scoring 91.25 . The city was praised by the Thavel + Leisure readers for its " peace and quiet" and "popular restaurants, historic temples and large markets” as well as for all the conveniences of a major city. Bangkok had a score of 88.96 and was praised for its arts scene and fashionable hangouts.

Yuthasak Supasorn, Governor of the Tourism Authority of Thailand （TAT） said, "Chiang Mai has always been popular with local and international tourists, so it's good to see that the city is receiving more international favorable receptions. The lovely weather and attractive culture make Chiang Mai a wonderful retreat the whole year round, and as it's a food and arts centre, there's always something to enjoy in the city as well as adventures in the surrounding hills."

Chiang Mai has also been ranked highly on a recent list of best cities （or digital nomads （数字游民）—people who work online and do not need to be tied to an office. The Nomad List ranks the best cities based on living costs, Internet speed t weather, safely and more than 50,000 other data （数据）points.