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On the way home, I2 in a small town to get petrol. I fuelled (给……加油) up and then went inside to3.

I was in my early 20s and wasn't earning money because I'd been4 my grandmother, so I put only $20 worth of petrol in. But my card didn't work. This was a time before mobile phones, so I couldn't call anyone else to5 them to put money in my account. I felt a wave of6 wash over me.

Behind the counter was a young man. He just had this7 on the situation I was in. He said, "I'll pay for the fuel."

I politely refused. But he8, saying he understood that sometimes this happens. His9 seemed beyond his years.

When I got back in the car, I was still feeling10. But I was committed to getting that money back to him somehow, and I did. Back then, $20 felt like a huge amount. I'm11 that it was a lot for him too.

In the years after, I often drove past that petrol station hoping to12 him again. Sadly, I never did.13, his kind act of offering me the money really made a14. It inspired me to be a better person, and even now, I am deeply15.

They must not only know various kinds of music but also select music to suit different events and audiences. DJs must be confident in skillfully guiding their listeners through an enjoyable experience using music. So DJs must be capable of using computers and music-mixing software. DJs must also be ready to think on their feet when their equipment does not work properly. Finally, DJs must be good at working with people and organizations so that they can get more DJing opportunities.

If you dream of becoming a DJ, there are some key steps to follow. First, decide if DJing is just a hobby or your future career. What skills do you already have? What skills do you need to develop? Listen to many styles of music, and start building your music playlists. Buy basic music-mixing software, and practice creating a continuous flow of music.

As you improve, develop your style, and record your mixes. Post your mixes online to get followers, and make connections with other DJs to learn from them. Experience is key! Volunteer to DJ for local events and on radio stations. Build relationships with organizations, and offer your DJ services.

A. DJs need a particular skill set.

B. Technology is a big part of the job.

C. There are several challenges of being a DJ.

D. If so, DJing might be a great career for you.

E. We have to decide what type of DJ you want to become.

F. This will help you know how much time and money to put into it.

G. The more people know about you, the more chances you'll get to DJ.

Present methods can only narrow down locations to within tens of kilometres, says Stefania Ursica at the Helmholtz Centre for Geosciences in Germany. In remote areas, this can lead to slowdowns if rescuers are sent to the wrong place. "That time loss can be critical," Ursica says.

Many countries have a network of seismic monitors to record activity related to earthquakes and volcanoes. This data can also be used to detect events such as landslides — the risk of which is increasing because of climate change — but the data from these kinds of events is much messier and harder to analyse than that from earthquakes, says Ursica.

There are two new features of her team's technique, she says. The first is to analyse five different aspects (方面) of the seismic waveform to pick out from the noise exactly when an event happened.

This information is then fed to a dozen or so mathematical programmes that search for the location of the event. They do this by working out what waveform would have been produced if the event had happened in a particular place and comparing it to the recorded waveform. If it doesn't match, they try a different place.

Each programme "moves" in a way inspired by the behaviour of animals, from the spiralling of a falcon to the long migrations of elephants, until they have collectively homed in on the most likely location of the event. The whole process takes only around 10 seconds. "We have basically an order of magnitude (巨大) of improvement," Ursica says.

In addition to helping rescue efforts, it will help researchers locate events in remote areas where satellite data is unclear or unavailable. She says: "We can locate events that we otherwise couldn't see."

I could argue that AI — like machine learning and big language models — will clearly help important fields like healthcare. But there are real worries too, like hackers (黑客) misusing it or the huge energy needed for data centers. Still, I'm not too concerned about AI taking over people's jobs.

Why not? Because of "Polanyi's Paradox" — the idea that humans know things we can't explain, which limits AI's ability to copy key human skills. For example, in math, we can describe processes involving data collection and analysis that can be taught to students. That's explicit knowledge, which enables us to program a computer to analyze and learn from data. But many human activities use abilities we understand intuitively (直觉地) but cannot clearly explain. This is implicit knowledge.

Therefore, human subjective experiences, beliefs and empathy (共情) form unbeatable barriers (障碍) that keep AI from replacing humans at work. As Dr. Tom McClelland at Clare College observed, it's one thing to win a game of chess; another thing to feel the excitement of victory. That's because those internal processes come from human consciousness (意识), which plays an important role in the development of humans — biologically, culturally and behaviorally, all of which form the basis of our society. You can't program consciousness — mountains of literature and research have been published on the subject, and yet we still can't agree on what it is.

These barriers to AI's failure in replacing humans don't necessarily benefit my Phoenix taxi driver, who must compete with driverless cars. But they should remind us that we've faced similar fears before — and that technology has improved, not lowered, our quality of life over the centuries.

But everything changed when I met Mr. Jochmans, or "Joch", as we called him. He greeted us with a loud "Hello, my wonderful physics students!" and a big smile. He must have known how anxious we were, how truly nervous we were of physics and the math required to understand it. On that first day, Joch told us something we'd hold close for the rest of our lives — that our grades didn't reflect our worth as human beings. This was a big deal at a tough school like Towson. He showed us that learning could be fun.

Over the next year, Mr. Jochmans introduced us to the magic of physics — and school. He kept some snacks for students who hadn't eaten breakfast; he played music during lab time. There were no stupid questions in Joch's class, and if you didn't understand a concept (概念), he'd stay after school with you for hours until you did. I ate lunch in Joch's classroom nearly every day, from the beginning of junior year until I graduated in 2016. For two years we talked daily about everything — theatre, music, and sometimes physics. He told me about Michigan State University, where he went to college.

For a while, I thought I'd study physics in college, maybe at Michigan State, because Joch made me love learning about speed and acceleration (加速度). But when I found a program in Canada to study theatre, Joch encouraged me to attend. When I applied to the University of Ottawa and got in, he wasecstatic.

After I moved to Canada, we lost touch. I became a theatre critic, a job Joch had once suggested. In 2022, I visited Towson to lead a theatre criticism workshop, and, joy of joys, ran into Joch. Not only did he remember my name but he knew what I'd been up to.

Mr. Jochmans passed away this month, just a week before the start of the new school year. He was the kind of teacher who made everyone feel special.

Space Explorers: THE INFINITE is an experience inspired by NASA missions on the International Space Station (ISS). On this one-hour journey, you will have access to never-before-seen 360-degree videos filmed in space using advanced technology. Enjoy breathtaking views of the Earth and get a unique view into the daily lives of astronauts.

Space Explorers: THE INFINITE Ticket

This ticket includes access to the "Science Centre Singapore", a must-visit attraction in Singapore! The Science Centre Admission ticket will be pre-selected during the purchase process, and is free for Singaporeans and Singapore Permanent Residents!

Last Tickets Remaining! Space Explorers: THE INFINITE is closing soon! Bring your friends and enjoy a discount before June 22!

Highlights

·Admire mind-blowing views of the Earth and feel how huge space is

·See the first-ever spacewalk filmed in cinematic virtual reality (VR)

·Explore a completely walkable 3D model of the ISS

·Escape the heat and explore space in a cool, air-conditioned centre

·Join astronauts and discover their adventures

·Watch the launch of the Artemis rocket, NASA's next giant leap towards the moon

General Info

Duration: 1 hour (40 minutes of which are in VR)

Location: The Annexe—Science Centre Singapore

Age requirement: 9+

Gift memories to someone special! Purchase a gift card for Space Explorers: THE INFINITE here

When it comes to the word "hot", it can describe the spiciness of food, and the heat of the weather. Coincidentally, Chongqing, a city that blends modern skyscrapers with centuries-old traditions, is the very city has all three characteristics.

Let me start by talking about the weather. In summer, Chongqing can be (extreme) hot and humid. Temperatures often rise above 37 degrees Celsius (95 degrees Fahrenheit), (make) if feel like a sauna. People try to stay cool by drinking cold drinks and enjoying the shade.

Nexit, Chongqing is known for its spicy food. One of the most popular (dish) is hot pot. It consists a boiling pot of spicy broth where people cook fresh ingredients like meat vegetables. The unique flavors and heat of the spices make every meal an adventure. Eating hot pot with friends is a fun experience, and the warmth of the food (match) the city's spirit.

Last but not least, Chongqing features for its beautiful women, who often have a charming and (confidence) presence. The blend of beauty and personality adds to the lively atmosphere of the city. You can see many (fashion) young women enjoying the streets and parks, making the city even more vibrant.

Chongqing's hot weather, spicy food, and warm people create unique and exciting environment.

One day, I heard a discussion about gratitude by Dr Tony Evans. It5 me and forced me to take a long, hard, honest look at myself. I have a (n)6 spouse (配偶) and parents. I'd heard the stories of other people's struggles with Cushing's disease. Their spouses had left them and they didn't have family to7. I didn't face any of these problems, yet I didn't realize that.

I made a decision to start practicing gratitude daily. Once I decided that, my8 improved, and I began to approach situations9. Instead of viewing situations negatively, I started to see them as10.

This led me to practice the concept of sowing and reaping (收获), which I learned from my parents. They didn't just talk the talk, but rather they11 this concept to us.12, it wasn't until I had my own experiences that I understood what it meant.

Let me explain. When I was13 by my own pity, my harvest in life was ruined, because everything I was14 was negative. Since I started practicing gratitude, so many different doors of opportunity have opened up for me.

My advice is starting practicing gratitude until it becomes a part of your daily15. Take note of the difference it will make in your life.

With the rapid growth of online media, China's increasingly serious food safety issues are coming to light more often. These include incidents like the production and sale of toxic milk powder, recycled cooking oil making its way back to dining tables, and falsified ingredient labels.

● It's crucial to know where your food comes from and how it's prepared. Research the sources of your groceries, whether it's local farms or imported goods. Read labels, check for certifications, and stay updated on any food recalls. Awareness is your first line of defense.

●Support local and transparent producers. Instead of choosing for mass-produced, processed foods, consider supporting local farmers and markets where you can trace the source of your food. Local businesses often prioritize quality over quantity.

● Eat more at home. Obviously, it's hard to monitor the hygiene standards and food sources in restaurants. You can base your meals around minimally processed, wholesome ingredients to ensure both safety and nutrition, which is absolutely beneficial to your health.

● Practice smart hygiene at home. You play a role in ensuring food safety once it enters your kitchen. Always wash your hands before handling food, clean your kitchen surfaces regularly, and cook meats to safe temperatures.

A. Be Informed.

B. Be prepared.

C. So, how can we ensure that the food we consume is safe?

D. In this way, you are able to have fresher and safer options.

E. Preparing meals yourself allows you to avoid unnecessary additives.

F. Simple actions can make a significant difference in preventing food-borne illnesses.

G. Then, how should we deal with businesses selling bad food?

Supporting this exciting smart soil system is a hydrogel (水凝胶) material. In experiments, the soil containing hydrogel led to the growth of larger, healthier plants, compared to regular soil, all while using less water and fertilizer. The technology is also universal enough to be adopted across a wide range of climates, from dry regions to temperate areas.

Agriculture today accounts for 70% of global freshwater withdrawals and up to 95% in some developing countries as our global population continues to rise. The U. N. Food and Agriculture Organization (FAO) emphasizes the importance of improving irrigation (灌溉) efficiency, adopting water-saving technologies and promoting crops with lower water footprints to ensure sustainable food production and water resource management.

Meanwhile, traditional farming methods, especially irrigation and fertilizing, face significant difficulties. As climate change intensifies and water resources become increasingly rare, the need for more efficient and sustainable irrigation practices has never been more urgent. Additionally, conventional fertilization techniques often result in too much nutrient exposure, reducing nutrient uptake efficiency and causing environmental pollution, and farmable land degradation.

"The lack of water coupled with a growing population has an immediate impact on food security," said Yu, professor of Materials Science in the Cockrell School. "This new class of hydrogels offers a solution to meet the pressing needs of water and efficient nutrient uptake in modern sustainable agriculture."

In experiments, plants rooted in the hydrogel soil saw a 138% increase in crop length compared to a control group in regular soil. And the improved soil can achieve 40% water savings, significantly reducing the need for frequent irrigation and ensuring strong crop development.

This research builds on previous discoveries involving hydrogels that can pull water from the atmosphere and make farming more efficient. The project will continue, and the researchers' next moves involve integrating different types of fertilizers and longer field tests.

Walking along the seashore, one can see the golden sand and the clear blue sea stretching out to the horizon. The sea breeze brushes gently against the face, bringing a sense of peace and tranquility. The beaches of Qingdao are a paradise for swimmers and surfers, as well as for those who simply want to relax and enjoy the beauty of nature.

In the city center, the old buildings of Qingdao tell stories of its rich history. The German-style architecture, with its distinctive red roofs and intricate details, adds a unique charm to the cityscape. These buildings, now mostly converted into museums, restaurants, and shops, allow visitors to glimpse into the past while enjoying the present.

But what really sets Qingdao apart is its cuisine. The city is famous for its fresh seafood, which is cooked in a variety of ways to satisfy every taste. From crabs to octopuses, from clams to fish, the seafood in Qingdao is a treat for the senses. And of course, no meal in Qingdao is complete without a glass of the local beer, which is renowned for its smooth taste and refreshing quality.

In short, Qingdao is a city that offers something for everyone. Whether you' re a history buff, a food lover, or simply someone who appreciates beauty and tranquility, Qingdao has something special waiting for you.