A new concept vehicle, Pod was introduced by Toyota and Sony at the Tokyo motor show. The car is intended as a four-wheeled friend. It aims to provide affection, sympathy and encouragement. Like a dog welcoming its master, the car sits up, wags its tail and acknowledges its owner's presence using hydraulics(液压装置) and a multi-coloured LED display panel(引擎) across the front.

    While on the road, the car constantly monitors the driver's mood with pulse and sweat(汗) sensors on the joystick(操纵杆). Cameras focused on the eyes keep watch for any sigh of drowsiness. If a driver appears to be losing his or her cool, Pod will display warnings, play soft music and blow cold air at the face. Drivers are shaken awake with loud music and a shaking chair.

    To improve driving skills, Pod uses a comparison to score drivers, offer advice and rank all Pod owners. Toyota claims that the car will eventually be able to learn its owner's likes and dislikes by monitoring passenger conversations. If the car hears a favorite song being discussed, it will download the track from the Internet and play it without being asked. It will also recommend(推荐) restaurants that might suit the driver's taste and take photographs of passengers when they sound particularly happy.

    In keeping with the moodiness that is the car's main selling point, Pod expresses a form of road anger. If a driver brakes or swerves(急转弯) suddenly, the LED panel shows an angry red and the tail rises at the back.

    Anger is one of the car's ten “emotional states”. Another is sadness — a blue front with tear-shaped lights seemingly dropping from headlights — which appears after a flat tire or when gas is low.

    “We wanted to show that the cars can be cheerful and entertaining,” said Yasunori Sakamoto, part of the Toyota design team. Mr Sakamoto said Toyota has no plans to put Pod on the market. Sad, really.

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    Mya Le Thai is a scientist studying at the University of California, Irvine. She recently discovered a process that may result in batteries that last forever. Thai said she had been discouraged that the batteries for her wireless devices degrade. Over time, they fail to charge fully.

    Thai did not like to have keep her wireless laptop connected to an electrical outlet. She decided to do something about that problem.

    At first, she and her team thought about inventing a new battery. But as they experimented, Thai discovered something that might permit lithium-ion(锂离子) batteries to last forever. Lithium-ion batteries power most wireless devices. Over time, the batteries lose the ability to hold a charge. Most of these batteries have a life span of about 7,000 charging cycles before they die.

    One of the reasons lithium-ion batteries degrade is their use of nanowires(纳米线) to carry electricity. Nanowires are extremely thin. A human hair is thousands of times thicker, for example. Nanowires are extremely efficient carriers of electricity, which makes them useful in batteries. But Thai said their thinness also makes them weak. "Nanowires break over time," she said. "That's why they lose capacity."

    But, Thai had a theory: The nanowires might last longer if covered with a material. She and the team tested her theory. The team tried many coverings for the wires. PMMA was one of them. The nanowires were coated with PMMA and cycled through charges 200,000 times. The PMMA coated nanowires showed no evidence of damage. The results suggest that batteries could last forever, without losing charging ability.

    Thai hopes to continue her research to understand why this material works so well and to see if any other material could create better results.

"It's kind of cool," she said. "I'm really glad people are showing interest in my work and not just in the work itself, but also in technology and energy."

It is OK not to be OK

    This is the simple encouragement people often use for themselves or others. But for professional athletes, this can be the hardest sentence to say.

    On March 6, Cleveland Cavaliers forward Kevin Love posted an article titled “Everyone is Going Through Something” on the website The Players' Tribune. In the article, the 29-year-old showed how he suffered from his first panic attack on Nov 5 in a game against the Atlanta Hawks and why he was so worried about sharing his story with the public.

    Love identified that what keeps people from speaking up about their mental health challenges is the fear that many people see them as a weakness. “Growing up, you figure out really quickly how a boy is supposed to act. You learn what it takes to 'be a man'. It's like a play book: Be strong. Don't talk about your feelings. Get through it on your own,” he wrote.

    And being an NBA player made his situation even more difficult. Love was afraid to share his struggles because he didn't want his Cavaliers teammates to think that he was unreliable.

    However, as it turned out, Love's teammates understood and supported him. Cleveland superstar LeBron James even wrote on social media that Love is “even more powerful now than ever before”.

    For Love, it was a journey of empowerment to accept and address his mental illness and share his experience with millions of people who face the same problems. In fact, he was inspired to talk about his situation by Toronto Raptors shooting guard DeMar DeRozan, who had also opened up about his mental health issues.

    Last month, the 28-year-old told the Toronto Sun that despite being a top-performing and wealthy NBA player, he still deals with constant blues. “It's one of the things that no matter how indestructible (坚不可摧的) we look like we are, we're all human at the end of the day, ”he said. “Sometimes…it gets the best of you, when everything in the whole world's on top of you, ” But other times, by admitting who we are, we can get what we want. As Love told Advance Ohio Media, “You have to let some of that stuff bleed out in order to fully recover from it.”

A

    In no particular order, here are some songs on the Music app of my phone:

On a Sunday Afternoon by Lighter Shade of Brown— A student of mine introduced this rap song to me all the way back in the early 1990s, when I was teaching Spanish at a local university. The story in the song takes place not too far from where I live in Los Angeles. It's a good "driving" song, nothing difficult or "deep".

Say Something by A Great Big World—A more recent song about a couple losing contact with each other. The piano part is of very little playing but beautiful.

    The Weight by The Band — Another old song, originally made public in 1968, but one I didn't hear until I was in high school more than 10 years later. I don't understand the words to the song completely, but the feeling of the song is very comforting to me.

Under the Bridge by Red Hot Chili Peppers — This Los Angeles group wrote a song that I used to listen to when I first moved to LA more than 25 years ago. I didn't know anyone here when I first arrived. When I got bored, I used to drive up and down the major streets that cross the city from east to west, listening to this song about t4the city of angels" being as "lonely as I am" (Don't worry. I have plenty of friends now.)

    The streets of Stockholm may be cold and snowy during winter, but it is one of the world's hottest startup(创业) centers and a good choice for people with talent worldwide.

    Once the snow melts(融化) in early spring, the city is among the greenest in the world. Two thirds of Stockholm is made up of either water or parks, and locals make it the first thing to enjoy these peaceful surroundings. Less than l% of Swedish employees work more than 50 hours per week.

    The quality of life is important. New parents are given 480 days of leave to look after their babies, while childcare is heavily supported in various sides. Little wonder that Sweden was rated the best location in the world for family life. Adam Webb, 34, a British businessman and father-of-one, said, "Everything is set towards helping parents, from giving dads time off on almost full pay to free bus rides for anyone with a baby carriage."

    Stockholm is also proud of what Vogue magazine recently ranked as Europe's coolest neighborhood. On the island of Sodermalm, just south of the city centre, independent record stores still make money, while plenty of cafes offer a taste for Scandinavia's love affairs with timeless style.

    Many major international companies, including H&M and Ericsson, offer expats(外来者) accommodation for the first three months of their contracts(合同) in Stockholm. But other foreigners arriving in the city are left to battle with a unique property market and a shortage of apartments. More than a third of Swedes live in rented housing, half of which is owned by local governments or state rental companies. If you're lucky enough to get a firsthand contract for this kind of accommodation, it is yours for life. Expats are welcome to join the queue, but in Stockholm they will find around half a million locals in front of them and an average wait of nine years.

    "Finding a place to live is the single biggest challenge when moving to Stockholm, but there is a lot going on to try and solve the problem," said Julika Lamberth from Stockholm Business Region, a state-funded company working to increase investment in the city.