1 . J. K. Rowling frequently shows there is magic every day. Her Harry Potter series has helped people through times of stress and depression and she is always there to deliver wise words of encouragement.

She is one celebrity who is very active on Twitter. So when a single dad named Matt Burke sent her a message thanking her for the series, she noticed. Her series had helped strengthen his relationship with his 9­year­old daughter Bailey.

He included a link to his article titled Being a Broke Parent. He explained how he hadn’t found a level of financial stability that allowed him to pay bills on time and take his daughter on more activities and events. The family also doesn’t have the Internet or TV, which means there’s no “digital babysitter” and he has to rely on his own creative ways to bond with his daughter. Since he received the series, the main thing that has occupied them these days is reading books together.

Burke admits that he thought he was “too cool” for the books when they first came out and he was in his twenties, but he’s loving reading them now. “We switch off chapter by chapter reading them out loud，“Burke explains.” This not only allows her to get more used to reading aloud in front of someone, but it gets me directly involved in something she loves, and it gives me the chance to be very dramatic when I read my chapters and bring myself into the characters in the book, which has proven to be a ton of fun.”

After hearing Burke’s story, Rowling said how honored she was when Harry Potter was a part of his family’s life and offered Burke more books. Besides, people are also offering to send Burke more books as gifts. For Burke, this experience, far more than gifts, will be what he treasures.

2 . Blind people have long desired for brightness, but scientists don’t have the technology. To bring that one step closer to reality, Zhiyong Fan, a materials scientist of the Hong Kong University of Science and Technology, developed a new artificial eye recently. The device, which is about as sensitive to light and has sharper vision and a faster reaction time than a real eyeball, may outperform human eyes.

The human eye owes its wide field of view and clear eyesight to the retina (视网膜) — an area at the back of the eyeball covered in light-detecting cells. The design for a new artificial eye is based on the structure of the human eye and uses a friendly light-sensitive material. At the back of the eyeball, an artificial retina is lined with Nan scale light sensors (纳米级光感器). Those sensors measure light that passes through the lens (晶状体) at the front of the eye. Wires attached to the back of the retina send signals from those sensors to the processor, similar to the way nerve networks connect the eyeball to the brain.

“In the future, we can use this to replace damaged human eyes,” says the lead designer. In theory, this artificial eye could see more clearly than the human eye, because the artificial retina contains about 460 million light sensors per square centimeter while a real retina has about 10 million light-detecting cells per square centimeter. Besides, the artificial eyeball records changes in lighting faster than human eyes can — within about 30 to 40 milliseconds, rather than 40 to 150 milliseconds. Although its 100-degree field of view isn’t as broad as the150 degrees a human eye can take in, the device can see as well as the human eye in poor light.

Hongrui Jiang, an electrical engineer at the University of Wisconsin, though, thinks engineers need a much more practical and efficient way to produce vast series of tiny wires on the back of the artificial eyeball to give it superhuman sight, which is super hard to achieve.

3 . Smartwatches and fitness trackers (健身追踪器) have gained popularity recently. These tools can record your daily steps, heart rates, etc.     1    . If yes, it might be a sign that you’re addicted to your fitness tracker.

    2    . If you keep setting unrealistic daily goals that involve working out for too long, and if you begin to ignore friends and responsibilities to make time for your workout, then you’re most probably addicted to your fitness tracker.

It’s a struggle to overcome the addiction to fitness trackers.     3    . For example, the number in your smart watch showing how far you’ve come can give you a sense of achievement.

Of course, failing to meet your daily goal can be discouraging. You might focus on your shortcoming rather than your progress. Another problem is that you might find yourself paying too much attention to the step number rather than how your body feels.     4    .

Therefore, if you’re spending too much time looking at your smartwatch, limit your daily step count to a comfortable level.     5    . For example, concentrating on your hobbies or socializing with friends can be a great way to keep your mind on other things.

4 . Is It Worth Buying Organic Food?

Organic food, grown without artificial chemicals, is increasingly popular nowadays. Consumers have been willing to pay up to twice as much for goods with organic labels (标签). However, if you think paying a little more for organic food gets you a more nutritious (有营养的) and safer product, you might want to save your money. A study led by researchers at Stanford University says that organic products aren’t necessarily more nutritious, and they’re no less likely to suffer from disease-causing bacteria, either.

The latest results, published in the Annuals of Internal Medicine, suggest that buyers may be wasting their money. “We did not find strong evidence that organic food is more nutritious or healthier,” says Dr. Crystal Smith-Spangler from Stanford. “So consumers shouldn’t assume that one type of food has a lower risk or is safer.”

For their new study, Smith-Spangler and her colleagues conducted a review of two categories of research, including 17 studies that compared health outcomes between consumers of organic against traditional food products, and 223 studies that analyzed the nutritional content of the foods, including key vitamins, minerals and fats.

While the researchers found little difference in nutritional content, they did find that organic fruit and vegetables were 20% less likely to have chemicals remaining on the surfaces. Neither organic nor traditional foods showed levels of chemicals high enough to go beyond food safety standards. And both organic and traditional meats, such as chicken and pork, were equally likely to be harmed by bacteria at very low rates. The researchers did find that organic milk and chicken contained higher levels of omega-3 fatty acids, a healthy fat also found in fish that can reduce the risk of heart disease. However, these nutritional differences were too small, and the researchers were unwilling to make much of them until further studies confirm the trends.

Organic food is produced with fewer chemicals and more natural-growing practices, but that doesn’t always translate into a more nutritious or healthier product. The U.S. Department of Agriculture (USDA) states that “Whether you buy organic or not, finding the freshest foods available may have the biggest effect on taste.” Fresh food is at least as good as anything marketed as organic.

6 . My 15-year-old boy is a high achiever. He is very bright, pursuing everything he does with devotion and determination. And he is a great kid: honest, kind, faithful and caring.

Like a lot of kids who are high achievers, he is a perfectionist and very easy to fall into anxiety. That is manifested in his study, and other things he does as well. For example, he loves tennis but he often worries about losing in the game. Now he has to stop competing because the pressure he puts on himself is becoming unhealthy. He still plays, but playing socially rather than competitively means that it’s an outlet (发泄方式) for him rather than a source of stress.

He does not manage stress well. He puts so much pressure on himself to the point of worrying himself sick over just about every assessment. And he gets so negative about it, everything I say to him is met with negativity, every suggestion with a response that it won’t work, and honestly it’s depressing and tiring.

To help my son, I have a patient conversation with him. He finally follows my advice about physical exercise to ease stress. Whenever he is under a lot of pressure, I will run with him for half an hour and do some push-ups to relieve pressure. Gradually, he becomes less nervous in the later exams and his scores become more and more stable.

Pressure from grades and perfectionism can be really hard to manage when it comes to schooling. As kids, what they need is effective communication and sincere encouragement. So I have always told and shown my son that I’m proud of him, and that pride doesn’t merely depend on top grades.

7 . In recent years, traditional Chinese culture and art has gained a foothold on short video platforms and attracted a large number of young followers thanks to the explosive growth of the short video industry. Relaxing, emotional and fragmented, these video contents perfectly match the demands of the users. With the application of new technologies such as social communication and immersive experiencing, short video platforms are seeing more users, becoming a shining spot of new Internet media.

Recently, Huangmei Opera Female Consort Prince became a hit on short video platforms as a lot of young users covered the aria (咏叹调) in their own way and showed great artistic talents. The interactive platforms are expanding the charm of the traditional opera among young people.

Peking Opera was also well-received on short video platforms thanks to a series of AR effects. Users love to film clips with a set of virtual facial makeup, headwear and costumes. Statistics indicate that these effects were applied by more than 18 million users, most of whom were young people.

In addition to Chinese operas, intangible cultural heritage items, such as embroidery, paper-cutting, printing and dyeing, shadow play works, oiled paper umbrella making, and bamboo weaving are also actively promoted on short video platforms. In a word, short video platforms are becoming an important channel to display China’s intangible cultural heritage.

Short video platforms, offering a fun, popular and easy way to explore the traditional art forms, are receiving a lot of positive feedbacks from China’s young generations. The seconds, or minutes long videos have produced remarkable achievements in promoting traditional Chinese culture.

8 . Ants have the ability to find out cancerous cells in humans, a new study has discovered. Researchers from the French National Centre for Scientific Research (CNRS) discovered that ant species — Formica fusca — has a well developed sense of smell. So it was able to distinguish cancerous cells from healthy cells in humans, limited trials revealed. “But more tests must be carried out before they could be used in settings like hospitals.” the team said.

To conduct their research, the scientists performed tests with 36 ants, smelling cells under a laboratory setting. First, the specialists exposed the ants to the smell of a sample of cancerous human cells. This smell was then associated with a reward of sugar solution. In a second step, the researchers exposed the ants to two different smells. One was a new smell and the second was the smell of the cancerous cells. Once this test was successful, the researchers exposed the ants to different cancerous cells. As such, the scientists found that ants distinguish between cancerous and healthy cells and between two cancerous lines. After training, Formica fusca ants are able to detect organic compounds (化合物) given off by cancerous cells.

“This first study shows that ants have high potential, are capable of learning very quickly, at lower cost, and are efficient,” points out CNRS in a news release.

This isn’t the first time that scientists have used the animal sense of smell to locate cancerous cells. “Dogs’ noses are well suited for medical diagnosis (诊断) and used for the detection of cancer. specific organic compounds,” the researchers explained. However, training them to do so requires several months to a year. “Ants therefore represent a fast, efficient, inexpensive, and highly accurate detection tool for detection of cancer cells,” the team explained.

The approach could potentially be adapted to a range of other complex smell detection tasks including the detection of narcotics (麻醉药), bombs, spoiled food, or other diseases.

10 . In the first half of 2022, scientists studying animal communication discovered that some dogs connect objects with words at a similar level to babies. Then what about cats, which are commonly believed to be unconcerned about human affairs?

Saho Takagi, a researcher at Azabu University, doubted cats’ seeming unconcern. “Cats don’t appear to listen to people’s conversations, but in fact, they do.” According to a past research, cats understand human communication better than expected. Like dogs, they can use human pointing and stares to find food. They even can tell the difference between human facial expressions and attentional states, according to a 2021 study. However, cats can do more than that.

Another study showed that cats can discriminate their human-given name from the names of their cat friends (those that live in the same house). The researchers believed that cats learned to connect names with other cats by observing communication between their owners and their cat friends.

In a recently published study, Takagi and her colleagues compared two groups of cats: one group was made up of house cats and lived with at least two other cats; the other was made up of cats that lived in “cat cafés”, which had up to 30 cats. They used a simple, two-phase(阶段) test. During the name phase, the study participant(参与者) was softly placed in front of a laptop computer. Then the researcher played a recording of its owner saying the name of its cat companions(同伴).

Immediately after the name phase came the face phase. A cat’s face appeared on the monitor. Sometimes, the cat that appeared on the screen matched the name spoken; other times the name and the picture did not match. If cats knew the names of their cat friends, they would investigate by staring doubtfully at the monitor when the name and the picture did not match. House cats had a significantly longer stare than café cats, indicating that house cats generally expected an exact cat’s face upon hearing the cat’s name.

“This is the first to show that house cats link human words and their social companions through daily experiences,” the researchers wrote, “However, we could not recognize the mechanism(机制) for learning. But with more and more scientists becoming interested in cats who are much smarter than we praise them, this question is sure to be solved.”