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.

Teachers worried about students turning in essays written by a popular artificial intelligence chatbot now have a new tool of their own.

Edward Tian, a computer science major at Princeton University, has built an App called GPTZero to detect whether a text is written by Chat GPT, which is a popular chatbot that has caused fears over its possibility for immoral uses in American academic circles. His motivation to create the computer program was to fight what he sees as an increase in AI plagiarism (剽窃). Since the release of ChatGPT in 2022, there have been reports of students using the language model to pass off AI-written assignments as their own. Many teachers have reached out to him after he released GPTZero, telling him about the positive results they’ve seen from testing it.

To determine whether an essay is written by a computer program, GPTZero uses two indicators: “confusion” and “burstiness (突发性)”. The first indicator measures the complexity of text; if GPTZero is confused by the text, then it has a high complexity and it’s more likely to be human-written. However, if the text is more familiar to GPTZero — because it’s been trained on such data — then it will have low complexity and therefore is more likely to be AI-generated. Besides, the second indicator compares the variations of sentences. Humans tend to write with greater burstiness, for example, with some longer or complex sentences alongside shorter ones. AI sentences tend to be more uniform.

In a demonstration video, Tian compared the App’s analysis of a story in The New Yorker and a Linked In post written by ChatGPT. It successfully distinguished writing between human and AI. However, GPTZero isn’t foolproof, as some users have reported when putting it to the test. He said he’s still working to improve the model’s accuracy.

Tian is not opposed to the use of AI tools like ChatGPT. GPTZero is “not meant to be a tool to stop these technologies from being used,” he said. “But with any new technologies, we need to be able to adopt it responsibly and we need to have protections.”

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.”