Breakthroughs in science and technology are paving the way for modern cities to support bigger populations. Now, we see the most exciting urban innovations to show you exactly how they'll improve your city's infrastructure(基础设施).

Lighting Up The Night

    Anthony Di Mari dreamed up an electric tree to help irrigate public parks and light them at night. These electric trees contain a special infill (填充物) that collects water from rainfall. The water is then distributed through a shallow underground irrigation system with the help from the trees' swaying movement. An electric motor turns energy from the waving of the artificial trees into electricity, which is used to light up the trees' outer LEDs.

Thinking Outside The Box

    As more people flock to urban areas, city planners will need to get increasingly creative about how to satisfy residents' health and transportation needs within decreasing available space. One way to achieve this is by updating infrastructure to support biking and walking by building suspended(悬浮的) roundabouts like hovering in the Netherlands. By lifting bicycle and pedestrian traffic above busy roadways, cities can significantly decrease over-crowded traffic condition.

Waving Hello To Clean Energy

    Cities that don't receive enough sunlight may find an attractive alternative in wave power. Since ocean waves rarely experience disruption(中断), electric engines driven by their clockwork push-and-pull can reliably provide power throughout the year. Further, thanks to advances in wave power technology, engineers have been able to move wave power engines farther offshore, where the waves pack the most punch, making the engines extremely efficient. So in the future, heavily populated coastal cities may use wave to meet their energy needs.

    Mail lay scattered across the kitchen table. I couldn't put off sorting through it any longer. I checked the envelopes, putting aside the ones addressed to my husband.

    It had been over three years since Bob had died. To friends and family it looked like I had moved past the worst of my sorrow. I took care of my house, socialized and kept up with community. On the outside everything appeared to be normal. But inside I was anything but I worried I would never get better, never be myself again. They say sorrow has no set time limit, but I was so tired of feeling empty and hopeless. My sorrow was sharp and fresh as ever. It was like a wall of pressure in my chest, pressing my heart.

    I picked up a piece of Bob's mail and held it out to tear in half, but stopped myself from cutting up the envelope. The letter was from an organization that funded a Haitian orphanage called My Father's House. Its founder, Carol Hawthorne, had given a presentation at our church. Bob and I had donated, and Bob ended up on the mailing list to receive the newsletter (通讯) with updates on the children.

    I hadn't read one since Bob died. But just three months before, in January 2012, the country had been hit by a terrible earthquake. In my depressed state, it hadn't even occurred to me to wonder whether the orphanage had survived. I opened the newsletter and was surprised to find out that My Father's House was still standing. Of course now it was more crowded than ever. At the bottom of the page was an announcement about an upcoming trip to visit the orphanage in person. “I should go.” The thought wouldn't leave me. I contacted Carol Hawthorne.“What would I do if I go?” I asked.“Build houses?”

    “The Haitian people there are eager to work and they know what they're doing,” said Carol. “What they need are raw materials, and we provide them. We also visit with the children. We go to clinics and schools, pass out supplies. You'll be very busy, I promise!” I reserved a seat but didn't mention it to any of my friends. Just a few weeks later, I was at the airport with seven strangers, waiting to board a plane to Haiti. Even after takeoff I wasn't really sure of what I was doing.

    In Haiti we were met by Pastor Ronald Lefranc, the director of My Father's House. We piled into an old school bus and drove over uneven roads full of stones and mud. We passed women shaking under the weight of huge water buckets balanced on their heads. Piles of rubbish scattered across the landscape, and the land was covered with broken tents. Finally we pulled up to the orphanage. A crowd of children—52 in all—rushed up to greet us. I couldn't understand the words of the song they sang in Creole, but with the smiles on their faces I didn't need to. Each child planted a big kiss on my cheek.

    Carol and Pastor Ronald led us into the main building. “What are those over there?” I asked, pointing to a collection of thin tents. “Is there not enough room in the building for all the children?”

    “We have the room,” said Pastor Ronald. “But many of these children came here after the earthquake. They still don't feel safe sleeping under a roof.”

    There was no sign of fear in the playroom inside. I played dolls and other games. Children I'd just met presented me with pictures they'd drawn and letters written in Creole. In the evening the children gathered in the dining room. They took turns reading aloud and then they all joined in song. The words were strange, but the tune sounded familiar.

    They'd lost so much, yet were so joyful. In the evening the children gathered in the dining room. One of the older children stood up to speak and then they all joined in song. The words were strange, but the tune sounded familiar. The children settled down. In the silence, a quiet noise began.

    An autonomous vehicle designed for making local commerce deliveries was unveiled by Nuro. The vehicle is about the height of an SW but far narrower than a typical car. The electric car features four exterior compartments (暗格) — two on each side — to hold separate deliveries. Each compartment can be tailored to a specific use, such as cooking a pizza or refrigerating a package.

    “We can use self-driving technology to deliver anything, anytime, anywhere for basically all local goods and services,” Nuro co-founder Dave Ferguson said. “Consumers used to be okay with two-week paid shipping. It became two-week free delivery, followed by one week, two days, and the same day. Now same-day delivery isn't fast enough for some customers.”

    Nuro isn't alone in building robots for local commerce deliveries. Earlier this month, Toyota, a Japanese car company, unveiled a concept vehicle that could be used for package delivery. A handful of startups — including Starship Technologies, Marble and Dispatch — are testing small robots for deliveries on sidewalks.

    Nuro's vehicle will likely face legal hurdles. Fully autonomous vehicles without a test driver aren't legal in California today, and many companies have shifted testing to states where regulators are more welcoming of autonomous vehicles, such as Arizona.

    Nuro expects to face fewer challenges because it doesn't carry passengers. Nuro's narrow size may also be helpful when navigating streets and avoiding pedestrians. The vehicle isn't equipped with any special features to communicate with pedestrians or other road users. Some companies have tested and patented solutions such as digital screens that signal the car's next move. Ferguson said his team conducted studies and found that such techniques could confuse people. Nuro believes it's better to make sure the car performs predictably, so that human drivers know what to expect from it.

    “We feel by creating this new technology that's going to enable this last mile delivery, we're going to be creating new markets and doing things that previously weren't possible,” Ferguson said. “This is not swapping out Jobs with robots. It's creating new markets. There will definitely be new employment opportunities.”

Pixels

        Genre: Action, Comedy, Sci-fiStarring: Adam Sandler, Kevin James, Michelle Monaghan

        Plot: When aliens(外星人) misunderstand video information of classic games as a declaration of war, they attack the Earth in the from of the video games.

        Showing: Friday--Thursday: 12:40 PM, 2:40 PM, 4:40 PM, 6:40 PM, 8:40 PM

Fantastic Four

        Genre: Action, Crime, Drama

        Starring: Miles Teller, Kate Mara, Michael B. Jorden, Jaime Bell

       Plot: Four young outsiders teleport(远距离传送) to a dangerous universe which changes their physical from in shocking ways. The four must learn their new abilities and work together to save the Earth from a former friend turned enemy.

      Showing: Friday--Saturday: 12:50 PM, 2:55 PM, 4:00 PM, 6:10 PM, 7:10 PM, 8:25 PM, 9:15 PM, 10:25 PM

Tempting Fate

      Genre: Drama, Romance, Thriller

     Starring: Trinitee Stokes, Ramsey Nouah, Nicholas Alexander

     Plot: Edu and Ugo are brothers of the same blood with different interests. One is gentle and talented while the other is quite the opposite. Ugo is trapped in a life of crime in which death may be the only way out.

     Showing: Friday--Thursday: 2:00 PM, 6:00 PM, 8:00 PM

Survivor

      Genre: Action, Crime, Thriller

     Starring: Paddy Wallace, Parker Sawyers, Bashar Rahal

     Plot: A Foreign Service Officer in London tries to prevent a terrorist attack set to hit New York, but is forced to go on the sun when she is framed for crimes she did not commit.

     Showing: Friday--Thursday: 2:40 PM, 7:00 PM, 9:00 PM

    Now many young people are traveling around the world on their own, not because they have no one to travel with, but because they prefer to go alone.

    Kristina Wegscheider from California first traveled alone when she was at college and believes that it is something everyone should do at least once in their life, “It opens up your mind to new things and pushes you out of your comfort zone.” Wegscheider has visited 46 countries covering all seven continents.

    In foreign countries, with no one to help you read a map, look after you if you get ill, or lend you money if your wallet is stolen, it is challenging. This is what drives young people to travel alone. It is seen as character building and a chance to prove that they can make it on their own.

    Chris Richardson decided to leave his sales job in Australia to go traveling last year. He set up a website, The Aussie Nomad, to document his adventures. He says he wished he had traveled alone earlier. “The people you meet, the places you visit, or the things you do, everything is up to you and it forces you to grow as a person,” said the 30-year-old man.

    Richardson describes traveling alone like “a shot in the arm”, which “makes you a more confident person that is ready to deal with anything”. He said, “The feeling of having overcome something on my own is a major part of what drives me each day when I'm dealing with a difficult task. I walk around with my head up because I know deep down inside that nothing is impossible if you try.”

    The great 19th century explorer John Muir once said, “Only by going alone in silence can one truly get into the heart of the wilderness.”

Harvard Pre-College Program

    Our summer program for high school students is designed to pave the way for a successful college experience.

    HERE YOU CAN:

    Learn without limits

    Pursue your interests in courses focusing on physics, law, writing, philosophy, and a dozen other subjects.

    Live at Harvard

    You will live in a historic undergraduate house near Harvard Square.

    Your plan covers three meals a day, seven days a week.

    Have fun outside the classroom

    You might enjoy a Cirque du Sileil performance, a Red Sox game at Fenway Park, or a trip to the Museum of Science.

    ELIGIBILITY (申请资格)

    Students are academically motivated and will graduate in 2020 or 2021.

    TO APPLY

    Complete an online application and provide the following materials: the $50 nonrefundable application fee; transcripts (成绩单) with fall 2018 grades; signed rules and regulations.

    INTERNATIONAL STUDENTS

    Participants should apply for the B-2 tourist visa. If English is not your native language, submit scores from the TOEFLor IELTS language proficiency exam.

    APPLICATION TIPS

    No fee is required to start your application. You will be asked to pay the application fee only upon submitting the application.

    The scores of successful applicants are typically above 103 on the TOEFL with 25 on the written section or at least 7.5 on the IELTS with 7 on the written section.

    Use a desktop or laptop. You will be asked to write short essays as part of your application. This may be challenging to do on a mobile phone.

    You will receive an email informing you of the application status approximately three weeks after you have completed your application.