Authors (作者)

    Alexandru Micu: Author

    ZME Science author profile | e-mail: alex@zmescience.com

    Main focus: technology, biology

    Curiosity (好奇心) is what drives Alex forward-his interest in learning more about the planet being matched only by his ability to discuss things with a light heart. Alex tries to make others more interested in special science and technology. He does things in his own way.

    Dragos Mitrica: Author

    ZME Science author profile | e-mail: dragos@zmescience.com

    Main focus: wheather

    Dragos loves nature, and does everything he can to understand it. This interest led him to many unexpected places in his life, and now, he mainly studies and understands how ancient (古代的) weather changed, and what this means for the future.

    Henry Conrad: Author

    ZME Science author profile | e-mail: henrykconrad@gmail.com

    Main focus: technology

    Henry Conrad is a game developer from Albuquerque, New Mexico. Whenever he's not working or reading the latest tech news, he enjoys writing about the latest inventions and technology, which benefits (有益) him a lot. It helps him find rich writing materials (材料).

    Mihai Andrei: Editor-in-chief

    ZME Science author profile | e-mail: andrei@zmescience.com

    Main focus: geophysics, environment

    Andrei has put a lot of sweat and tears into ZME Science ever since he was a student. He is always looking for the most interesting subjects, presenting them in a way that everybody can understand. He believes that education is the key towards a better future and he tries to persuade people to become better persons of the planet. His background is in Geology and Geophysics, but now, he focuses more on environmental studies.

    “We all know that exercise is good for us, but can you get the benefits without actually doing the exercise?” asks Michael Mosley.

    Having a hot bath or a sauna is a good way to soothe your limbs after exercise, but what happens if you do it instead of exercise? Dr. Steve Faulkner of Loughborough University asked me to take part in an experiment comparing the relative benefits of having a long, hot bath versus an hour of hard pedalling.

    For this study I join a group of volunteers who have all been fitted with monitors which continuously record blood sugar levels. Keeping your blood sugar levels within the normal range is an important measure of your “metabolic” fitness.

    The first part of the experiment is very relaxing, consisting of having a long, hot bath. While I sit in the bath, which they keep at 40℃, Steve closely monitors my core temperature. Once it has risen and stayed there, I am allowed out.

    A couple of hours after my bath I have a light meal. Since we want to see how having a hot bath compares with exercise we repeat the experiment.

    So what's the result?

    “One of the first things that we were looking at,” Steve says, “is the energy expenditure while you're in the bath and what we found was an 80% increase in energy expenditure just as a result of sitting in the bath for the course of an hour.”

    This is nothing like as many calories as cycling for an hour (which comes out at an average of 630 calories) but we do burn 140 calories, the equivalent of a brisk 30-minute walk.

    A video recording from Xinhua (9th, Nov. 2017) showing Arabella Kushner, US President Donald Trump's granddaughter, singing Chinese songs and reciting Chinese literary classics caused another Internet sensation (轰动) in China Wednesday night.

    In the video clip, Arabella, wearing a traditional embroidered Chinese dress, greets President Xi Jinping and his wife Peng Liyuan.

    The six­year­old sings two songs Our Fields, Beautiful Fields, and My Good Mom. The former, written in 1953 and adored by Chinese teenagers for decades, expresses one's love and affection for the motherland and nature. The latter is a popular nursery rhyme widespread in China.

    She also displayed knowledge about Chinese literature by reciting Three Character Classic, a Confucianist volume to educate young children, and two ancient poems of Li Bai, Watching the Fall of Lushan Mountain, and Departing from Baidi City in the Morning.

    Xi spoke highly of the child's Mandarin abilities and said her performance deserved an "A Plus". He said Arabella was already a star in China and hoped she would visit China one day.

    Numerous media websites and netizens reposted the video. It has received 2.3 million clicks on Sina Weibo, China's popular social media platform, as of press time.

    "What a talented and smart girl she is!" Weibo user Yumeiren said. "I hope she can make more contributions to fostering China­US friendship in the future."

    Earlier this year, during President Xi's visit to the United States, Arabella has already performed for the president and his wife at the Mar-a-Lago resort in Palm Beach, Florida, on April 6. Standing alongside her parents, Arabella sang Jasmine, a Chinese folk song with her brother Joseph.

    Imagine a small group of people with a shared passion for the same craft. They all have different skills and approaches, but they come together to share skills, share stories, and share in the joy of making something.

    Modern maker culture is filling headlines and lab spaces all over the world. The way makers communicate with each other has changed over time. In the past, skills mainly came from personal sit-downs with members of the group. But sometimes a teacher wasn't available, or the one available didn't know how to do the skill others wanted to learn.

    Today a teacher doesn't even have to be in the same country or occupy the same decade as the students. Thanks to the work of people who take the time to break down and share the details of their craft, an interested individual can learn anything. Guides may range from videos to diagrams and text. Regardless of the media, maker resources are meant to be shared.

    One of the features of the maker movement is the crossover between different interests. Perhaps a passion for cars and for leather craft can result in a truly custom interior (定制的内饰). Perhaps a love of knitting (编织)and robotics will result in a tiny ——but very mobile ——robotic furry cat.

    And once you have started your creation, finding a community to share with is no longer limited to the people nearby. Modern makers have been sharing videos of their progress online for years, contributing greatly to the rapid spread of the maker movement. As different as the participants might be, they share enthusiasm, support, and a willingness to try.

    Imagine making a ping-pong table together with your makers' team. One group builds the basic frame. Another group takes on the responsibility of painting. You knit the net. There is joy in just giving it a try. It will remind you of childhood creations. Whether you are an experienced programmer or just picking up a hammer for the first time, it is never a bad time to come up with an idea, try something, and share the results.

When learning a new language, speakers often have non-native accents. Linguistic research suggests such accent is shaped by the speaker's first language that they learned when growing up. Schepens' team's research puts new light on just how strong these effects can be.

There're similar researches from other scientists, but Schepens' team analyzed a data set of more than 50,000 adults, who learned Dutch as their second or third languages. Besides, these adults came from more than 60 different first language backgrounds. These data were collected through a state exam administered by the Dutch government for foreigners that enter Holland. The exam rated each test taker's Dutch speaking proficiency(熟练，水平)

The team found that about half of the individual difference in the proficiency of learners could be accounted for by a handful of reasons: the learner's education and sex (women had higher scores than men), the learner's age when they arrived in Holland, the time they spent in Holland, and the learner's first language. This last reason was the most prominent one since it accounts for 50 percent of the explained difference in learners' proficiency.

What leads to this? Working with professor Hout, Schepens's team studied the linguistic similarity between Dutch and the 62 first languages spoken by different learners in the database. The huge majority—about 80 percent—of the effect of the language background was explained by linguistic similarity. Of the test takers who grew up speaking Arabic, only about 5 percent scored higher in Dutch speaking proficiency than the worst 50 percent of the test takers that grew up speaking German.

"Our results suggest this is largely due to the fact that German shares many linguistic characteristics with Dutch, but Arabic does not," says Schepens.

"This suggests a large part of the non-nativeness of a learner is simply due to the language they grew up with, and this reason is entirely out of their control," says Florian Jaeger." The result can play a part in language teaching."

It is William Shakespeare, the great coiner, who is given credit for the word. Coriolanus, one of his characters, compares going into exile (流放) to a "lonely dragon" retiring to his cave. He was talking about a physical state: someone who was lonely was simply alone. Then, thanks to the Romantic poets, the word took on emotional meanings. Loneliness became a condition of the soul. For William Wordsworth, who famously "wandered lonely as a cloud", the natural world offered an escape from negative feelings of loneliness—a host of flowers could provide "cheerful company". Today, loneliness is often seen as a serious public-health problem, creating the feeling of disconnection.

In his book Solitude, Netta Weinstein, a psychology professor wonders the rewards of time spent alone. He begins with an account of stories of solitude created by figures such as Michel Montaigne, a writer, and Edward Hopper, a painter. Netta then draw on laboratory work, interviews and surveys to clarify how being alone really affects the human mind.

It is common to treat loneliness and solitude as synonyms (同义词) but they are not. The author suggests that what is negatively described as one state can be positively expressed as the other. Loneliness, often perceived as negative, can potentially be transformed into a positive experience of solitude. To this end he emphasizes how being alone can help restore people and offers practical advice. In a noisy world, he argues, people should make time to be alone, away from attention-grabbing motives.

The book's interviewees mostly regard a lack of company as a contributor to autonomy. But this depends on whether solitude is desirable or not. Enforced solitude, such as that experienced by prisoners, typically leads to nothing but suffering. Elective solitude, by contrast, affords space for self-reflection. It can open the door to "peak experiences" such as wonder, harmony, and happiness. In a highly-connected digital age, however, many readers do not fancy their chances of ever taking a long enough break to have such experiences.