The light from the campfire brightened the darkness, but it could not prevent the damp cold of Dennis's Swamp (沼泽地) creeping into their bones. It was a strange place. Martin and Tom wished that they had not accepted Jack's dare. They liked camping, but not near this swamp.

    “So,” Martin asked as they sat watching the hot coals. “How did this place get its name ? ”

    “Are you sure you want to hear it ? It's a scary story,” warned Jack.

    “Of course!” cried out Tom. “If there were anything to be scared of, you wouldn't have chosen this place!”

    “Ok, but don't say I didn't warn you,” said Jack, and he began this tale.

    “Way back in time, a man called Dennis tried to start a farm here. He built that cottage over there to live in . In those days, the area looked quite different — it was covered with tall trees and the swamp was a crystal-clear river. After three hard years, Dennis had cleared several fields and planted crops. He was so proud of his success that he refused to listen to advice.

    “ 'You are clearing too much land, ' warned one old man. ' The land is a living thing. It will hit back at you if you abuse it. '

    “ ' Silly fool,' said Dennis to himself. 'If I clear more land, I can grow more crops. I'll become wealthier. He's just jealous!'”

    “Dennis continued to chop down trees. Small animals that relied on them for food and shelter were destroyed. He was so eager to expand his farm that he did not notice the river flowing slowly towards his door. He did not notice salt seeping to the surface of the land. He did not notice swamp plants choking all the native plants.”

    “What happened? ” Martin asked. It was growing colder. He trembled, twisting his body closer to the fire.

“The land hit back —- just as the old man warned, ” Jack shrugged. “Dennis disappeared Old folks around here believe that swamp plants moved up from the river and dragged him underwater. His body was never found.”

    “What a stupid story, ” laughed Tom. “Plants can't …” Before he had finished speaking, he screamed and fainted (晕倒). The other two boys jumped up with fright, staring at Tom. Suddenly, they burst out laughing. Some green swamp ivy (常春藤) had covered Tom's face. It was a while before Tom could appreciate the joke.

    Sports shoes that work out whether their owner has done enough exercise to warrant(保证；授权)time in front of the television have been invented in the UK.

    The shoes — named Square Eyes — contain an electronic pressure sensor and a tiny computer chip to record how many steps the wearer has taken in a day. A wireless transmitter(传话器) passes the information to a receiver connected to a television, and this decides how much evening viewing time the wearer deserves, based on the day's efforts.

    The design was inspired by a desire to fight against the rapidly ballooning waistlines among British teenagers, says Gillian Swan, who developed Square Eyes as a final year design project at Brunel University in London, UK. "We looked at current issues and childhood overweight really stood out," she says. "And I wanted to deal with that with my design."

    Once a child has used up their daily allowance gained through exercise, the television automatically switches off. And further time in front of the TV can only be earned through more steps.

    Swan calculated how exercise should translate to television time using the recommended daily amounts of both. Health experts suggest that a child take 12,000 steps each day and watch no more than two hours of television. So, every 100 steps recorded by the Square Eyes shoes equals exactly one minute of TV time.

    Existing pedometers(计步器) normally clip(夹在) onto a belt or slip into a pocket and keep count of steps by measuring sudden movement. Swan says these can be easily tricked into recording steps through shaking. But her shoe has been built to be harder for lazy teenagers to cheat. "It is possible, but it would be a lot of effort," she says. "That was one of my main design considerations."

    When Kevin Durant gave his tearful MVP speech in 2014, the NBA star made sure to thank one person who had been there with him from the very beginning: his mother. His heartfelt words about the sacrifices she made for Durant and his brother led to a lifetime movie about her journey as a single parent, The Real MVP: The Wanda Durant Story.

    Today, the NBA superstar's mom travels the country as a motivational speaker and philanthropist (慈善家). On Monday, she spoke at Thomson Reuters' in New York about her personal struggles to achieve financial stability and shared the financial advice she gave her son when he entered the league with CNBC.

    “I wanted him to realize he has worked hard," she says, "And it is OK for him to enjoy himself because of his hard work. But it is also imperative that he prepares for his future.” While she advised him to enjoy the rewards of his labor, she also wanted to make sure that her son knew the importance of financial planning.

    She told the audience that when she found herself a single parent to two children at 21, she couldn't follow the financial principles. Rather than planning for the future, she focused only on how her money could make ends meet for that moment.

Recently, Durant has teamed up with Laurene Powell Jobs for a new philanthropic program called College Track which is aimed at helping disadvantaged kids attend college. As part of the program, Durant has committed to donating $10 million to his hometown's public school system.

    Durant's mom says that in addition to his financial decisions, she is proud of his philanthropic work and his desire to help the community. “I thought giving back was always very important, and so we talked about that and he had seen that from us as a family and it's one of the things that I taught him," she says.

    Facebook was running my life.

    But what killed Facebook for me was when I posted a photo, and five minutes later my son asked me how many "likes" it had got. His question was a wake-up call.

    "Likes" are signs of acceptance and approval(赞同). I had forgotten that acceptance and approval need to come from within and had unknowingly set him a bad example.

    Before absorbed in Facebook, I spent a lot more time reading books and magazines. I checked in with friends through texts, emails and phone calls.

    To set a healthier example to my son, I deactivated my Facebook account.

    I'd been in the habit of checking Facebook many times a day, so I had to come up with some new habits. I carried a novel and a crossword puzzle book around with me. I rediscovered knitting. I started taking yoga classes.

    I started to remember a few things. My body is fine just the way it is. I have friends who will help me out when I'm in trouble, and I will help them out. I do my best to be a good mother, and our son is happy and healthy. We are very lucky to be able to afford two vacations a year.

    I stopped looking at the world through my cellphone. I felt completely present in the moment. The break left me feeling better about myself, my family, my home and my life.

    After a few weeks, I returned to Facebook. Now I look at the photos of my friends' kids growing up and treasure how social media allows me to keep in touch with family. I no longer have the desire to post updates often.

    It is not an addiction(上瘾) any more.

So far this winter, a theater in the Alps has staged more than 60 unique concerts. Winter temperatures in the remote mountain village can drop high below zero. Performers wear down jackets and play ice instruments. In fact, almost everything from drums and guitars to horns and harps at the music festival is carved from ice even the stage the musicians play on. The audience sits on ice chairs and benches and claps their hands to listen, both to praise the performers and to keep themselves warm when the air flows through.

The musical instruments used were almost entirely made by an American ice artist, Tim Linhart. Since he created his first musical instrument out of ice more than a decade ago, he has already carved various ice instruments, including violins, violas, timber drum sets, xylophone, double bass, mandolin and cello. He also created his own large wind instrument, which uses the vibration of an ice tube to produce sound when the air flows through.

Linhart makes the different parts of the ice instrument and then uses a liquid mixed with snow to glue them together, with a metal support placed where the strings need to be. A violin can usually be made in two or three weeks, while larger instruments can take more time and efforts, sometimes taking months to make.

An ice instrument has a clearer sound than a wooden instrument. However, ice instruments are more easily broken or damaged than ordinary instruments. The temperature in the ice theater changes depending on the number of people in the audience. This also changes the temperature of the ice instruments, which in turn affects the 1 sound they produce. Musicians need to tune their instruments frequently during performances.

Although playing an ice instrument is not easy, Linhart believes that ice and snow are good materials for making instruments. The only downside is melting when the temperature is above freezing.

It's widely recognized that play-based learning significantly benefits the cognitive, physical, social, and emotional health of children. Recent research suggests that certain board games, such as Chutes and Ladders and Monopoly, can further contribute to enhancing their mathematical abilities.

A team of researchers from Pontificia Universidad Católica de Chile in Santiago, Chile, reached this conclusion after a comprehensive analysis of 19 studies conducted between the years 2000 and 2023. With the exception of one study, all focused on the correlation between board games and the development of math skills.

In these studies, children aged between 3 and 9 engaged in board games under the watchful eyes of teachers or trained adults. The structured 20-minute gaming sessions were held twice weekly for a duration of approximately six weeks. In some of the studies, one group of children (the intervention group) played board games that were centered around numbers, while another group (the control group) played games that did not necessitate mathematical skills. In other instances, both the intervention and control groups indulged in number-based games, but they were assigned different games, such as Monopoly and Dominoes.

The mathematical proficiency of the children was evaluated both at the beginning and the end of each study. The researchers were particularly interested in observing improvements in four pivotal areas: the ability to name numbers and exhibit basic numerical understanding, for instance, recognizing that "nine is greater than three." They also monitored the children's progress in addition and subtraction, as well as their burgeoning interest in mathematics.

The findings of this study were published in the academic journal Early Years on July 6, 2023. The results indicated that engaging in board games positively influenced the children's math skills in more than half of the four key areas examined. Moreover, nearly a third of the children in the intervention groups outperformed their counterparts in the control groups on math assessments.

The researchers are optimistic that their findings will encourage the development of new board games specifically tailored for educational purposes in classrooms. In the meantime, consider enhancing your own mathematical skills by organizing a board game night with family and friends this summer—it all adds up to a fun and educational experience!