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"I saw the2 of poor sleep on her," Tim says. Therefore, for a high-school research project, he3 to deal with "a real need in the world". His4 — a huggable, co-sleeping robot — won him a big prize at an international competition.

Besides returning hugs, Tim's5 also copies breathing through its chest (胸膛), which gently rises and falls. "The robot even attempts to6 its breathing rate to the hugger's and mirror how fast the hugger's breathing," Tim says. "That part proved7. After all, a bedroom fan might be enough to throw off the gas levels. It's not always going to be mirroring you8," he adds.

"My sister9 it very cute," he says. "One of the things that surprised me was that she told me it was quite10 and reassuring."

Some people11emotional support dogs. But some places might not12 animals. In a super-clean hospital, an animal may cause a13 to sick kids. "Being able to reassure kids is quite a14 thing," Tim says. "But it would be15 if my product could do it."

Microplastics are everywhere. They're in your liver, blood and even in your brain, and they're almost impossible to avoid.. Here are four ways to reduce your exposure in what you eat and drink.

Drinking bottled water could be introducing you to thousands of microscopic pieces of plastic. In fact, bottled water is the biggest pathway to microplastic exposure. Researchers have found that an average liter of bottled water contains about 240,000 plastic particles (微粒), most of which are nanoplastics, measuring just a small part of the width of a human hair. Switching from bottled water to filtered (过滤的) tap water has the potential to reduce microplastic intake.

Avoid plastic food containers

Using plastic is often unavoidable, but there are many ways to reduce your food's interaction with plastics, and that includes the plastic storage containers, said experts. Experts urge people to replace food that comes in plastic containers with alternatives. Canned food is another plastic pollution pathway for humans.

Use glass in the microwave

One study found that microwaving food in plastic containers and reusable food bags could release more than 4 million microplastic and 2 billion nanoplastic particles per square centimeter in just three minutes. Heat causes microplastics to get into your food, so avoid putting hot food into plastic packaging.

Avoid highly processed foods

Highly processed foods contain significantly more microplastics than minimally processed food. Of the products tested, breaded shrimp (虾) had the highest concentrations of plastic particles. Highly processed chicken pieces contained 30 times as many microplastics per gram as chicken breasts.

A. Choose to drink clean tap water.

B. Filter and boil your bottled water.

C. Microplastics could also be hiding in your food containers.

D. Fortunately, there are some steps to minimize your exposure.

E. That could be as simple as buying peanut butter in a glass container.

F. And make sure that it's not stored in sunlight or other warm environments.

G. One study found microplastics in all 16 protein products that researchers sampled.

The breakthrough lies in 3D neural mapping. Unlike traditional AI recognizing 2D patterns, DeepMedScan constructs dynamic 3D models of organs: It cross-references scans with global databases-processing 200,000+ historical cases in 0.2 seconds. "It's like giving each radiologist a super-powered second brain,"explains lead researcher Dr. Aris Thorne.

Critical advantages include identifying micro-lesions under 2 mm — often missed by human eyes — and predicting disease progression. In German trials, the AI detected early-stage pancreatic cancer in 83% of high-risk patients a year before symptoms emerged, enabling life-saving interventions.

Challenges persist, however, Legal frameworks struggle with responsibility for AI misdiagnosis (occurring in 0.7% of cases vs. human 1.2%). Inaccuracy risks also exist; early versions performed poorly on pediatric (小儿科的) scans due to limited child data. Regulatory authorities now enforce "human-AI co-diagnosis" — requiring doctor confirmation for critical cases.

Future upgrades focus on accessibility. Lightweight versions for rural clinics are being tested in India, using smartphone-compatible calculation procedure. As WHO advisor Dr. Priya Sharma notes, "Making this tech widely accessible could prevent 500,000+ annual late-stage. cancer deaths globally by 2030."

Mother was right, as I discovered after graduating from college in 1932. I had decided to try for a job in radio, then work my way up to sports announcer. I hitchhiked (搭便车) to Chicago and knocked on the door of every station and got turned down every time. In one studio, a kind lady told me that in most cases big stations couldn't risk hiring an inexperienced person. "Go out in the remote areas and find a small station that'll give you a chance," she said. I went back home to Dixon, Illinois.

While there were no radio-announcing jobs in Dixon, my father said Montgomery Ward had opened a store and wanted a local athlete to manage its sports department. Since Dixon was where I had played high school football, I applied. The job sounded just right for me.

But I wasn't hired. My disappointment must have shown. "Everything happens for the best," Mom reminded me. Dad offered me the car to hunt for jobs. I tried WOC Radio in Davenport, Iowa. The program director, a wonderful Scotsman named Peter MacArthur, told me they had already hired an announcer.

As I left his office, my frustration boiled over (爆发). I asked aloud, "How can a fellow get to be a sport announcer if he can't get a job in a radio station?" I was waiting for the elevator when I heard MacArthur calling, "What was that you said about sports? Do you know anything about football?" Then he stood me before a microphone and asked me to broadcast an imaginary game. The preceding autumn, my team had won a game in the last 20 seconds with a 65-yard run. I did a 15-minute boost to that play, and Peter told me I would be broadcasting Saturday's game!

On my way home, as I have many times since, I thought of my mother's words: "If you carry on, one day something good will happen. Something wouldn't have happened if not for that previous disappointment."

Rockies to Red Rocks

Rocky Mountaineer offers luxury railcar service, and its most notable American route is the Rockies to Red Rocks journey. Starting in Denver and finishing in Moab, this route takes you through breathtaking landscapes, including the towering Rocky Mountains and beautiful canyons (峡谷). It offers an unforgettable experience, highlighting the rugged (崎岖的) beauty of the American Southwest.

Cape Cod Central Railroad

This fun train journey takes you across the Cape Cod region, specializing in lunch, brunch, and dinner journeys. All trains come with various classes, letting you choose the tickets that suit your budget.

Grand Canyon Railway

If you want an unbeatable entrance into the Grand Canyon, go on the Grand Canyon Railway. It's been in operation since 1901. You can choose from six different tiers when you buy your ticket based on comfort and service levels. If views are your focus, go with the Observation Dome.

Durango & Silverton Narrow Gauge Railroad

Built by the Denver & Rio Grande Railway for silver and gold transport, the approximately 45-mile route from Durango to Silverton is a national historic landmark and shows the scenic San Juan Mountains. Passengers ride vintage (老式的) steam trains, with both open and enclosed carriages, experiencing the charm of a bygone era. Ideal for families, history buffs, and nature lovers, the trip is enhanced by guided tours explaining the railway's mining heritage.

I frowned at myself in the dressing-room mirror. I was wearing white tights, a white leotard (紧身连衣裤) , and a white cap that hid most of my hair. I was one of 10 snowflakes in my dance school's Winter Wonderland show.

"Grandma, I really don't feel like being in the show," I said. Grandma Lani looked at me gently, "Why, mo'opuna?" Mo'opuna means "grandchild" in Hawaiian. Grandma Lani has always lived in Hawaii. "You love to dance." I used to love to dance. Then Ms. Tuttle gave the part of the Snow Queen to Christine Abrams. Christine got to wear a blue leotard and a feathery skirt that drifted out like a cloud every time she twirled. And she got to do a dance once all by herself. The snowflakes just had to run and spin to look like a snowstorm. I sighed. "I don't like our dance. And no one would notice if I weren't there. There are so many of us," "I would notice," she reassured me softly.

As Christine walked toward us, Grandma paused and smiled at her. "What a beautiful costume!" Christine glided away, her skirt waving behind her. I hung my head. Grandma took my hand, "What's bothering my Avery?" "And you won't be able to tell me apart from the other snowflakes," I whispered.

Grandma was about to speak. Then something outside the window caught her eye. She grabbed my hand and my coat and pulled me out of the dressing room and through the doors to the outside. It was snowing. Grandma held her breath and I suddenly thought of something, "Grandma, have you ever seen snow before?" "No, mo'opuna. In Hawaii, it snows only on the very tops of mountains."

I had seen snow lots of times, but now I tried to see it differently, as if it was new. I saw snowflakes twisting through the air in different directions, sparkling and shining at us. So many snowflakes came together to create something magical. "Aloha," Grandma whispered to the sky. Aloha can mean many things, including "love", " hello", and "good-bye". "I don't know when I'll see something like that again," "I do," I said.

注意：

(1)续写词数应为150个左右；

(2)请按如下格式在答题卡的相应位置作答。

Back in the dressing room, I knew something within me had quietly changed.

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As the curtain fell, I heard Grandma's applause rising above the rest.

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注意：

(1)写作词数应为80左右；

(2)请按如下格式在答题纸的相应位置作答。

Say No to Playing Balls in Teaching Buildings

Good morning, everyone!

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Thank you!

The third UNESCO High-Level Forum for Museums, held in Hangzhou on April 23rd, (draw) over 190 museum curators and experts from more than 60 countries. The event focused on AI's revolutionary effect on the museum industry. AI tools, (tailor) for relic detection, help museums better catalog relics and identify invisible damages in artifacts. However, Gabor Zsigmond, (direct) of the Hungarian National Museum, stressed that human proofreading of AI outputs remained crucial in the AI era.

Participants discussed AI could bring to exhibition planning. Given a theme, AI can select exhibits and construct frameworks using (exist) content. May Khuen Chung, leader of the National Museum of Singapore, mentioned museums' ability to analyze databases customize content to individual preferences, which reflected AI's practical value. Despite AI's advantages, concerns over copyright issues and ethical problems were raised and taken account. Additionally, Britt Romstad noted the need to build more equity into digital spaces.

After the forum, attendees visited the Archaeological Ruins of Liangzhu City, UNESCO World Heritage Site. Gehane Nabil, impressed by prehistoric stone tools, said the commonalities between Chinese and Egyptian civilizations were (true) remarkable. These shared elements, she added, would become the (link) that unite human beings.

Months earlier, Lily stared at her glowing laptop,1 deeply. Her novel centered on Kate had remained2 at 10,000 words for a month; not a single new word came to her. In a moment of overwhelming3, she closed the laptop sharply. She murmured, "I'm fooling myself. I'll never be a4."

Writing was her lifelong passion, but to support her family and pursue a steady livelihood, she5 her writing ambition and took up teaching. For thirty years, she fostered students' imagination, while her own literary passion slowly6. Yet when she finally embarked on writing the novel, the complete absence of7 crushed her last hope.

One day, after hours of another8 writing, she walked outside to refresh her mind. Her mind still clouded and her phone now dead, she found herself9 — just then Patrick Kincaid kindly offered her a ride. Sensing her low mood, he encouraged her to share her10. Lily confessed she was struggling to11 Kate's story, unable to find her creative rhythm. He smiled gently, "Stop forcing Kate's plot — let your heart guide your words."

His words stirred something deep within her. That night, she wrote12, weaving threads of her own life into Kate's journey. Six weeks later, she completed the first13. With Patrick's encouragement, she perfected the manuscript, found a literary agent, and had the book14. On its title page, she wrote, "For dreamers in the dark — and the ones who brought them15."

Dreams never fade away; they just wait for a spark to bloom, and now, she was the spark.

Dreams are an integral part of healthy sleep. The average person spends roughly two hours dreaming each night. Yet even with this significant time, the phenomenon remains mysterious.

What role do dreams play? Dream researcher Alan Siegel calls dreams an entrance to our inner selves — they help process emotions and tackle tough problems we struggle with while awake. Meanwhile, expert Robert Stickgold argues that dreams spring from memory. It lets us absorb lessons, heal from hurt, and grow wiser through experience. Put simply, their research shows that dreams are the brain's innate way to work through our inner struggles and make sense of our memories.

Certain dream themes feel universal across cultures. Whether tumbling from a great height or tripping down stairs, these dreams often spark intense fear. A sense of helplessness lingers too. They tend to symbolize lost control or hidden insecurity. In contrast, flying dreams are deeply uplifting. Soaring through the air, weightless and free — it fills dreamers with joy. Such dreams usually reflect a yearning for freedom or independence.

Dreaming of exams is another widespread experience. These dreams often come from anxiety — about being unprepared, rushed, or judged in real life. Even negative pre-exam dreams can boost actual test performance. After all, the brain processes stress ahead of time. Similarly, dreams of getting lost are frequent. Wandering unfamiliar streets, missing a train, or struggling to find a destination — these reflect uncertainty and confusion. They often mirror life's transition periods: career changes, relationship shifts, or personal growth.

Dreams are deeply personal. You're the best interpreter of your own dreams. Paying attention to their themes and the feelings they stir can unlock profound insights. These insights help you better understand your inner world and build greater self-awareness.

A. Falling is one of the most common.

B. Interestingly, there exists a silver lining.

C. It also brings a strong sense of empowerment.

D. Such mental activities simply sort unconnected ideas.

E. Replaying past events, big and small, is nature's clever design.

F. In these times, it's normal to feel adrift or unsure of our next steps.

G. Transition periods usually disappear when confusion fades in dreams.

The claim that horror fans must lack empathy has been supported by some early studies. Yet, a closer examination reveals methodological flaws: mixing up the enjoyment of cruelty with a general interest in horror narratives. When such flawed studies are ruled out, the supposed link between low empathy and horror enjoyment disappears. And, recently, more reliable research confirms that horror fans show no less empathy or compassion than others; on some measures, they even score higher.

Another popular theory suggests that horror fans are simply chasing an adrenaline rush. While this may be true for some enthusiasts, newer studies unfold a more complex picture. Researchers have identified different types of fans: some are indeed "adrenaline junkies", but others, termed "white knucklers", use horror to confront and overcome personal fears. A third group, "dark copers", finds an emotional release in fictional horror, using it to process real-life difficulties.

Beyond these motivations, a key personality trait driving horror fandom is "morbid curiosity"—a natural desire to learn about threatening or death-related subjects. This curiosity may be beneficial. Studies indicate that individuals with higher morbid curiosity are often better prepared for real-life crises and show greater resilience during stressful times. Horror fans, it seems, may be practising emotional regulation when they play with their fears through scary entertainment.

The evidence paints a picture of horror fans being empathetic, curious and psychologically sophisticated. horror is a testament to human adaptability and our remarkable capacity to find meaning, connection and even growth in the face of our deepest fears. Recognising this not only helps us understand horror fans more accurately, but also illuminates something profound about human nature itself.

The technology is critically important amid severe reef degradation. Seventy percent of the Dominican Republic's coral reefs now have less than 5% coral cover. Climate change not only kills corals directly through warming oceans but also significantly reduces the natural reproduction chances of surviving individuals. "What was once normal in coral reefs is no longer possible for many species," noted Andreina Valdez, a biologist at Fundemar.

Assisted fertilization fills this gap by artificially facilitating gamete fusion (配子融合) . The implementation follows a precise process. Each year, a few days after the full moon at dusk, corals release millions of eggs and sperm. Fundemar's team collects these gametes, performs artificial fertilization in the lab, and nurtures the larvae (幼体) until they are robust enough for transplantation to reefs. Though only 1% of the 2. 5 million embryos cultivated annually survive in the wild, this rate still outperforms natural reproduction on degraded reefs.

It holds distinct advantages over the non-sexual reproduction used in the past. Non-sexual reproduction involves transplanting fragments of healthy corals, which is faster but produces genetically identical clones vulnerable to mass disease outbreaks. In contrast, assisted sexual reproduction creates genetically diverse individuals, significantly lowering the risk of widespread die-offs. Originating in Australia, the technology has now expanded across the Caribbean, with projects in Mexico, Curaçao, Puerto Rico, Cuba, and Jamaica.

However, a fundamental challenge remains: climate change. UNESCO data shows oceans are warming twice as fast as 20 years ago, increasing coral bleaching risks. Expert Mark Eakin stated, "You can't conserve something if you don't have it. So these programs are helping to expand the population that's out there." Yet he urgently warns, "Without tackling the 800-pound gorilla of climate change, much restoration work could be wiped out." But, for Fundemar, current efforts matter, "We are investing immense effort to protect what we love, and we trust many around the world are doing the same. "

So you step outside your house, where there are few roads and fewer neighbors, and see it. A single-engine plane flies low, just a few dozen feet above the ground. The plane's door whips open, and a black package is thrown out, plummeting (速降) to earth with a yellow tail hanging behind.

Congratulations, you've just been turkey bombed!

The "bomb" is a 15-pound frozen turkey stuffed into a trash bag, tied with yellow caution tape for easy visibility. Since 2021, Alaska native Esther Keim has been dropping them from the air to remote Alaskans who might otherwise be eating squirrel, moose or Spam for Thanksgiving dinner.

Thanksgiving falls at a tricky time of the year in this part of the country. It's a time when rivers, which often serve as highways in Alaska's remote areas, are too frozen for boats to travel but not frozen enough for cars. Their only option for reaching "civilization" is seven hours on a snowmobile. Or, if you're a pilot like Keim, you can take to the air.

Keim began her turkey-bombing flights after visiting her family in Skwentna, an isolated village. A neighbor mentioned how a squirrel he hunted barely fed his family of four. This reminded Keim of her childhood, when a family friend would drop a turkey — and sometimes a box of candy inside the package just for her — from his plane to her family every year. "I am gonna drop turkeys to remote Alaskans without road access," says Keim. "It wouldn't be a big deal, but it'd bring me a lot of joy to bless other people like we were blessed."

Now Keim is working to turn this personal effort into a non- profit called the Alaska Turkey Drop Project. The project has received enough donations from some individuals and local businesses, with others donating their time and goods. Every year, that noisy plane soaring through Alaska's sky brings not just turkeys, but a heartwarming reminder of connection in the wilderness.

The Undercover Economist

A favourite of the 10Eighty team is Tim Harford's The Undercover Economist — if you've ever wondered why the gap between the rich and the poor is so great, then this book is for you. Relatable and engaging, Harford highlights the relevance of economics to everyday life, from buying a coffee to sitting in a traffic jam. He exposes how coffee shops, supermarkets and airlines convince us to part with our money, shedding light on how to apply economic principles to everyday life.

Slow Productivity

10Eighty's researcher also recommends Slow Productivity by Cal Newport for the summer reading list. In the modern workplace workers feel pushed to the edge by continual meetings, overflowing inboxes, non-stop busywork, and office rules that laugh at autonomy and agency. Newport offers alternative strategies for knowledge workers to do the best work of their lives by taking a slower approach to work that matters.

Tom Sawyer

Few books are better at sparking eagerness to act than Mark Twain's Tom Sawyer. Forced to paint a fence white rather than play with his friends, naughty Tom finds a way to make it seem so appealing that the local kids want to do it — and end up paying Tom for the privilege. Business-school professors call it "psychic rewards".

What is your favorite from this summer reading list? Why not share your ideas with us below?

Siya was excited to set off for her long-awaited holiday in Himachal. After working at a stretch for months, she couldn't wait to escape to the peaceful mountains. Her parents would be joining her too. The weather, the mountains and the peace, everything would be theirs for a whole month!

She reached a day earlier to settle into the guest house before her parents arrived. As she sat by the window, sipping her coffee and watching the mountains, the caretaker of the guest house arrived, worried. "Ma'am, there's been heavy snowfall in all parts of the state. So, the flights to Himachal have been canceled. It's going to be difficult for anyone to get through for the next few days," he said.

Siya's heart sank. She quickly grabbed her phone to call her mother when a message arrived: "Dear kiddo, our flight got cancelled because of the snow. We're stuck here for five more days. Stay safe, and we'll be there as soon as we can."

"Well, what now?" Siya muttered to herself, feeling disappointed. "I was looking forward to seeing them. What will I do alone for so long?!"

The next day, Siya spent her time at the guest house all by herself. The snow continued to fall heavily and the roads remained blocked. It was peaceful yet lonely. She spent her time reading books and watching snowflakes but felt downhearted about how her holiday had begun.

Then, on the second day, as she was lying on the couch of the living room, she heard a soft sound, like a tiny cry. She froze for a moment, wondering if her mind was playing tricks on her. She stood up and followed the sound to the porch (门廊).

注意：

1.写作词数应为150个左右；

2.请按如下格式在答题卡的相应位置作答。

To her surprise, there was a wet, shaking baby cat on the porch.

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As her parents stepped inside, Siya spotted an adult cat in the doorway.

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A century ago, what had been the heart of China was reborn as something (complete) new. In 1925, the Forbidden City, once the exclusive domain of emperors, was transformed into the Palace Museum, a cultural institution dedicated to (safeguard) treasures that had long symbolized dynastic power. had for centuries stood as a walled-off (封闭的) seat of authority suddenly became open to the public. This was more than a change of function; it was a change of meaning. The Forbidden City became the (recognize) inheritance of a nation and ultimately, of the world.

Now, as the Palace Museum in Beijing celebrates its 100th anniversary, it is dynamic force shaping the future of culture. Its centennial ( 一 百 周 年 纪 念) is a (remind) that heritage is not static: It evolves, adapts and continues to inspire (generation). The 100th anniversary of the Palace Museum is not only a moment of national pride for China but also an occasion of global significance. It (mark) 100 years of transformation from the closed world of emperors to a vibrant public institution and from a national treasure house to an international platform. Its anniversary makes people reflect what heritage means in the 21st century. The Palace Museum shows that culture is not about looking backward in nostalgia (怀旧), about sustaining a living conversation between past and future and between nations and peoples.

There was an English teacher in fifth grade who could magically transport us to different worlds by reading to us from books we would have2 never picked up. It was even shocking that my teacher could see the3. I was one of those who lacked confidence. Yet my teacher would notice me hidden in the corner,4 to speak, and the unspoken5 in her eyes suggested that she could see me through. I could still6 remember her lessons about the great masters of art. She did this7 her major was not art, nor geography. I wanted to be one of those all—seeing ones with superpowers that made children feel safe and8.

Being a teacher isn't the easiest or the most financially rewarding of jobs. And there are occupational risks—your knees can9 from years of carrying piles of notebooks up and down the school staircase, your voice can10 from too much talking. But despite all that, there are those choosing this11.

All my life, I've gone to work early each day with12 steps. Occasionally, I meet my former students. Their obvious love for me and fond memories of our time together are my13. Whenever I meet a brand new teacher14 to perfect his/her skills with a brave face on, I feel proud to15 the same group.

Controlled environments for food production are not new. In 1999, Dickson Despommier and his graduate students explored the concept of vertical farming as a way to feed growing urban populations, leading to the broader use of the term in the 2010s and 2020s.

Vertical farming as a practice really didn't become popular in the United States until around 2020, but it has been used in countries like Japan and the Netherlands for decades, according to Koga, where greenhouses (the early form of vertical farming) in general are a much more integral part of their culture and food production.

Today, much of the work in creating more nutrient-rich food through vertical farming comes down to science. Currently, researchers are working to create seeds that are best suited for an indoor, controlled environment.

For instance, FFAR invested some $7.5 million in the PIP consortium to research varieties specific to indoor planting. "We've adapted plants through history," Reich told Built In. "We need to try to see if we can adapt plants specifically to indoor agriculture, to see if that makes it more economically practical for the future."

A. The research witnesses more than one sponsor.

B. This practice was copied by many other farmers.

C. They created floating boats to grow crops on waters.

D. Yet the term "vertical farming" caught on much later.

E. The older industry shapes vertical farming's operations.

F. Conventional methods adjust seeds for weather and soil.

G. Thus, vertical farming is adopted to reduce greenhouse gases.

Developmental psychologists warn that this phenomenon could have long-term effects. "Children need in-person interactions to build empathy (共情) and emotional regulation," said Dr. Daniel, a clinical psychiatrist. "Without those formative experiences, they're at risk of becoming adults who struggle to deal with relationships that involve complex social interactions and emotions." He described in his article America's Loneliness Epidemic: What Is to Be Done?

Studies indicate that prolonged contact with digital devices during critical developmental years can influence the growth of the prefrontal cortex (前额叶皮质), the part of the brain responsible for decision-making and empathy. These changes may leave children ill-equipped to navigate the complexities of adult relationships, creating a cycle of isolation. Teenagers are perhaps the most at-risk groups in the loneliness crisis. In the period of two decades, in-person social interaction among teens has dropped by 70%, replaced largely by digital communication. Social media platforms make it seem like people are connected, but they often make people feel worse about themselves and left out.

The damage to people's minds is really bad. Depression and anxiety rates among teenagers have increased, and studies by Dr. Vivek, link social media use to loneliness and confirm it. For teens, loneliness is not just an emotional state but a sign to life-threatening mental health crises. So it is essential to solve the problem of children's dependence on digital devices through various approaches. This includes establishing clear guidelines for screen time, encouraging activities that promote social development, and educating children about the importance of a balanced lifestyle. By doing so, we can create an environment that supports the overall well-being of children.

Like many European cities, Copenhagen became a city of cars after World War II. But in the 1970s, people fought back with mass bike protests that pushed the city to build a wide network of cycle lanes (车道). A recent study found that if all cities had as many, global CO₂ emissions from private cars could fall by 6%.

Still, even Copenhagen struggles to reduce car use. Cycle highways help people reach the city's end, but red lights slow them once they arrive. Planners hope the green waves will solve this. "It's so important to have the freedom on a bike to just ride along at a good speed," says Line Barfod, the mayor for technology and environment. "You can feel the city wants you — and supports you — going on a bike."

The new plan has faced little opposition. Yet at rush hour, some say the lanes are too crowded to enjoy the wave. Lars, who usually cycles too fast to ride the wave himself, thinks the city is reaching a difficult trade-off point. "We're at a point now where we need to choose between cars and cycles. If you give cycles more space, it will compromise the ability of drivers to access different spaces."

Copenhagen has approved a 602-million-kroner cycling package to improve the system, building the country's longest cycling bridge and upgrading lighting. The city has also set up 19 bicycle counters to study cyclists' speed and plans to adjust lights to match their flow. Experts say such measures represent a vision: moving people out of cars and onto bikes — to save energy, reduce pollution, and make cities more livable.