2 . Kenya is home to Africa’s predators (捕食者), particularly lions, which frequently hunt farmers’ livestock (牲畜). To protect their animals, farmers often use poisons. While these have been successful in protecting farmers’ livestock, their use has resulted in a sharp decline in the lion population, which stands at just 2,500 now.

At the age of nine, Turere was asked to care for his father’s cattle beside Nairobi National Park, one of Kenya’s most famous wilderness areas, where people frequently experienced conflicts with lions. Turere couldn’t bear to see lions harmed by humans when lions hunted cows, because he loved these creatures deeply. Determined to find a solution benefiting both local farmers and wildlife, Turere started experimenting. But no way worked at first. The only thing that worked later was when he wandered around the livestock pen with a torch in hand. The sight of him walking around at night with a light made the animals runaway.

This inspired Turere to develop the Lion Lights system, a series of flashing LED lights strategically placed on the cattle fences to scare away predators. “The lights flash irregularly to trick lions into thinking that someone is walking around with a flashlight. Thanks to it, we went from losing three cows a week to none,” says Turere. This innovative solar-powered light system—which can also run on wind power—costs just $20.5 per unit, making it affordable and eco-friendly.

Turere’s invention is not only protecting the livelihoods of local communities, it, is also changing the viewpoints of local communities on wild life. “Since the introduction of the Lion Lights system, there have been no predator-related incidents. As a result, local people no longer view wildlife as the enemy,” he notes. “This is great news for these wonderful animals as it means that local communities are more open to wildlife conservation.”

3 . Following a design shown on her cell phone, Ruan Xiyue, 35, quickly sketched a manned spacecraft on a gourd (葫芦), completing the first step of gourd sculpture, an intangible (非物质) cultural her it age of northwest China’s Gansu Province.

Coming from a family engaged in gourd sculpture for almost 90 years in Lanzhou, Ruan is not satisfied with just perfecting her technique. Instead, the fourth-generation inheritor (继承人) aims to bring traditional craftsmanship closer to young people through marketing and sharing.

Dating back over 1, 600 years, gourd sculpture was first developed as a decoration on people’s portable wine pots made of gourds. The pronunciation of “gourd” in Chinese, which resembles that of “luck and fortune”, partly explains its lasting popularity.

For Ruan, the fragrance of gourds is the smell of home. Upon graduating from college, she started learning gourd sculpture from her mother, sitting for hours every day practicing calligraphy and painting, which she views as the essential training to become a qualified sculptor. Later, Ruan developed innovative products such as gourd mirrors and gourd necklaces to tap the market potential, believing they can help the craft reach more people.

Her family opened a gourd sculpting studio in 2010, displaying their works as well as a history of the art. Ruan likes talking with visitors to the studio, and their interactions inspired her to launch a curriculum for people to experience the craft in 2016. According to Ruan, around 800 people attend the courses every year. Among them are students eager to learn something new, and young parents who bring their kids along to enjoy some lovely family time. “Many participants told me that our courses enable them to know more about the history of Lanzhou, and help make the city’s memories last longer,” said Ruan.

Under Ruan’s influence, her mother is now live streaming on social media everyday sharing her stories of gourd sculpture with viewers across the country. “Sharing is inheriting,” said Ruan. “When we share our skills and knowledge with more people, the traditional culture will naturally be spread on a wider scale,” said Ruan.

6 . What is a GPA?

A GPA, or Grade Point Average, typically ranging from one to four, is a number reflecting your course performance on average. It’s used by universities to determine whether students meet academic standards and by students to enhance job prospects or secure admission into post-graduate programs.

How to calculate a GPA?

● Determine the letter grade and the number of credit hours for each course you take in a term;

● Translate the letter grade to grade points using your school’s grading system;

● Multiply the grade points by the credit hours for that course;

● Add up all the credit hours for the courses;

● Divide the total number of grade points by the total credit hours and you get the GPA.

What are the consequences of failing college courses?

● Every failing grade (F) significantly impacts your GPA for that academic year, limiting clubs, organizations and program choices, as competitive programs require top GPAs.

● Most financial aid programs require a specific GPA. A sharp drop in GPA due to several course failures may lead to withdrawal from financial aid programs, unless you retake the courses and pass.

● For college athletes on sports scholarships, failing courses repeatedly can lead to losing scholarships and team spots.

● Failing multiple courses can result in school removal and affect future applications.

7 . To produce the classic clothing, blue jeans, producers rely on indigo dye (靛蓝染料), the only molecule known to provide jeans’ unique, beloved color. While indigo itself naturally comes from a plant, growing demand for blue jeans throughout the 20th century gave rise to synthetic (合成的) indigo, which is now more commonly used.

Indigo is the dye that makes jeans blue, but it doesn’t mix with water. To dye clothes, usually, chemicals are needed to make the color stick to the cloth. But in Denmark, scientists have created a new way to dye clothes using an enzyme (酶), which is a kind of protein that can cause chemical reactions, instead of harmful chemicals. This new method is better for the environment and doesn’t use poisonous stuff.

The chemical process for dyeing blue jeans has persisted for the last century. Workers are exposed to the poisonous chemicals, which also pollute the environment near factories. Waste water from those factories often ends up in waterways, decimating local ecosystems and even dyeing rivers blue.

Ditte Hededam Welner, the study’s lead researcher, says their new enzyme works really well and is strong enough for making lots of jeans without breaking down. This enzyme makes dyeing with indican, which is like indigo, much less harmful to the planet — about 92% better than the old way.

However, the new method doesn’t fix all the environmental problems of making jeans. Making a single pair of jeans uses a lot of water — enough to fill many bathtubs — from growing the cotton to putting the final touches on the jeans.

Even though the new dyeing process is better for the environment, it’s not always easy or cheap to change to it. Welner’s team isn’t sure if jeans companies will find it easy or affordable to switch to this method. It costs a little bit more — just seven cents extra per pair of jeans — to use the enzyme for dyeing. But Welner believes it’s worth it because it’s much better for the environment.

8 . A study following nearly 30,000 older adults for more than 10 years has found six key healthy lifestyle factors can significantly reduce memory loss and those adults engaging in between four and six of the healthy lifestyle behaviors could dramatically reduce their risks of developing dementia (痴呆), even when carrying genes that increase their risks of Alzheimer’s disease.

“Six healthy lifestyle aspects were assessed: a healthy diet, regular physical exercise, active social contact, active cognitive (认知的) activity, never smoking, and never drinking alcohol,” the researchers explained in the new study. Participants were classified (分类) into the favorable group if they had four to six healthy lifestyle factors, into the average group for two to three factors, and into the unfavorable group for zero to one factor.

The study found that people with four to six healthy habits had a much slower loss of memory than those with fewer healthy habits. People with these good habits were also much less likely to get dementia than those with one or no healthy habits. Those who had two or three good habits were 30% less likely to get dementia.

The study didn’t figure out which of the six healthy habits is the best for stopping dementia or which combination is the best. However, the information did show that eating healthy seemed to help prevent memory loss the most, with brain exercise and regular physical exercise also very helpful.

About 20% of the people in the study had a gene that makes Alzheimer’s disease more likely. Even so, having several good health habits helped slow down memory loss. This shows that changing how we live can really help.

Even though each health habit helped in a different way, overall, the study found that people with more good health habits had much less memory loss than those with fewer good habits. This suggests that the choices we make in how we live can help protect our memory. The study adds to the evidence that we might be able to change our risk of memory loss.

9 . Thomas was a well-known wise man. One day, he wandered in a beautiful small town. Because of his fame, people from nearby towns who heard of his arrival all came to visit and seek his advice.

Many who came sought help with difficulties in daily life, and Thomas, unable to bear turning them away, patiently offered suggestions. Word spread quickly, and more and more people came to see Thomas for guidance.

One day, dozens of people crowded outside Thomas’s door, all clamoring (大声地要求) that their problems were the most serious and urgent, each insisting that Thomas address their concerns first, with no one willing to yield (让步).

After a moment of thought, Thomas took out some paper and a pen and said, “I can’t hear clearly with everyone talking at once. How about everyone write down your problem on a piece of paper and place it in this basket beside me?”

Once everyone had placed their notes in the basket, Thomas shook the basket and said, “Please each take a piece of paper from the basket and read what it says.”

As everyone read a note from someone else, they all realized that indeed, each person has their own troubles, and every household has its own challenges. Then Thomas spoke up, “Now, whose problem is the most urgent to solve?” Hearing that question, no one spoke again, because now no one dared to claim that their problem was the most severe.

Often, we are bound by our immediate feelings. When difficulties and problems strike, it feels as though we are caught in a vortex of pain. But if we shift our focus from ourselves and look towards others, we might discover that the problems we face are not so significant. Perhaps others are the ones who need help more urgently, or maybe there is something within our power that we can do for them.

10 . A brown and dry lawn is not something many gardeners would boast about. But that is exactly the kind of yard competition organizers in Sweden were looking for when they launched the prize for the “World’s Ugliest Lawn”. People from around the world were invited to post pictures of their dehydrated(脱水的)grass to social media in a bid to win the uncertain honor.

The intention, according to those behind the project, was to raise awareness of “saving water on a global scale by changing the norm for green lawns”. Lawns, which can require large amounts of water to maintain, are coming under increasing examination as climate change makes periods of drought more frequent and intense.

The global initiative was launched on the official website for Gotland in Sweden. “Huge amounts of water are used to water lawns for aesthetics(美学). As the world gets warmer, lack of water in urban areas is projected to affect up to 2.4 billion people by 2050. By not watering lawns for aesthetic reasons, we can protect the availability of groundwater,” the competition organizers said.

The unlikely title has been awarded to Kathleen Murray who lives in Sandford in Tasmania, Australia. According to the organizers, Murray’s lawn “boasts deep and dry divots created by three wild bandicoots(袋狸)and not one dust-covered decimeter is wasted on watering”. Murray said in the press release about her triumph, “I am terribly proud! I knew I would have my 5 minutes of fame, even if it was for having the ugliest lawn on the planet! I am now free of ever taking care of my lawn again.”

A press release by the Gotland, office added, “For the planet and its declining stockpiles of life-giving liquid, thank you, Kathleen, as well as those naughty bandicoots damaging your lawn for the greater good.” Organizers added, “Gotland aims to show to Sweden and the world that sustainable behavior doesn’t have to be dull.”