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.

    I now work 40 hours a week at a weather company and I love it Compared to when I became a mom, I don't feel bad about being away from my three kids. When I had my first child, I was a busy manager. My husband had a part-time job and cared for her the rest of the time. Once I became pregnant with my second kid, I quit my job to focus fully on writing.

    At first I felt like I was living the dream. I was a work-from-home mom who never had to be away from my children. But working from home can end up being more stressful than working full-time or being a stay-at-home mom.because you're frequently exhausted between work, keeping house and telling sweet faces you don't have time to play. Ever tried writing an article with a baby screaming? It was awful.

    I was so stressed that I eventually started taking my kids to 8 day care center a couple of days a week. The whole reason I worked so hard to be able to write for a living was to be at home with my kids and here I was taking them to a day care center.I thought I was a failure then.

    Over the past five years of being a freelancer(自由作家), I've realized a couple of things. As I wrote six months  ago, "I though I felt bad leaving my daughter for ten hours a day but now she is old enough to ask me to read her a story .Try telling your kid no, 20 times a day. It's cruel. You end up feeling worse for having to ignore them." I also realize not socializing with people weren't good for my mental well-being.

    Not only that, but I can now show my kids that Mom is important and has a job at a flashy office building, something they didn't realize when1 sat around in yoga pants typing on my computer all day long.

    Mark Twain was a great writer. He was from the USA. He was born in 1835. He was also a famous speaker. He was famous for his sense of humor. Many people liked to listen to him talk because he liked to tell some interesting stories to make people laugh all the time.

    One day Mark Twain was going to a small town because of his writing. Before he was going to leave, one of his friends said to him that there were always a lot of mosquitoes in the town and told him that he'd better not go there. Mark Twain waved (摇动) his hand and said, ＂It doesn't matter. The mosquitoes are not relatives of mine. I don't think they will come to visit me.＂

    After he arrived at the town, Mark Twain stayed in a small hotel near the station. He went into his room, but when he was just about to have a rest, quite a few mosquitoes flew about him. The waiters felt very sorry about that. ＂I'm very sorry, Mr. Mark Twain. There are too many mosquitoes in our town.＂ One of them said to him.

    Mark Twain, however, made a joke, saying to the waiter, ＂The mosquitoes are very clever. They know my room number. They didn't come into the wrong room.＂ What he said made all the people present laugh heartily.

    But that night Mark Twain slept well. Do you know why? That was because all the waiters in the hotel were driving the mosquitoes away for him during the whole night.

    Retired judge Davison hated all the quiet. Evy, his wife of 66 ears, had passed away, and he was lonely and sad in the months after her death. But he knew how to beat those feelings; he decided to build a pool.

    Davison contacted a family-run company in Hopkins, Minnesota, that had built a pool for his previous house 40 years ago. “They did such a great job before and were still in business, so they came out and planned it,” Davison said.

    Kevin, who works on new pools for the company, helped Davison with everything, from initial planning and completing contracts back in March to teaching him how to filter the water once the pool was finish in July.

    “If You build it, they will come,” he thought. He invited all the neighborhood kids over to swim. Now it's not so quiet anymore.

    He hears the sounds of laughter and splashing as he sits on a chair in the shade, watching happy children play in his backyard.

    “I knew they'd come.” 94-yvear-old Davison told KARE-TV.

    Neighbor Jessica thought the judge was joking when he talked about putting in a pool until she saw the work starting. Now she and her four kids have been regulars since the pool was finished in July.

    “It's him spreading joy throughout our neighborhood for these kids.” Jessica said.

    Davison's pool includes a diving board and reaches nine feet in the deep end under the board. It's especially welcome in a town that doesn't have a public outdoor pool.

    Although Davison has three adult children, he doesn't have any grandchildren.

Jessica says she's told him, “You kind of adopted our whole neighborhood of kids. These are your grandkids.”

    The judge's rules require that a parent or grandparent stay while the children are swimming. Once the kids leave, he likes to swim, too.

    Davison tells KARE-TV that he realizes that putting in the pool didn't make a lot of financial (经济的) sense for an old man. But that didn't matter to him.

    “I'm not sitting by myself looking at the walls.” he says. “What else would you think of doing where you could have a whole bunch of kids over every afternoon?” The 94-year-old judge now hears laughter all day as he watches children splash in his backyard pool.

    We are deep into January, and winter is in full swing. The days are short, grey, and cold, and many of us are fighting the annoying u Winter Blues". Yes, lack of sunlight can cause a type of depression called seasonal affective disorder (or SAD). Sunlight causes an increase in serotonin­a "happy hormone" ­in your body, and with a long winter ahead of us we must look for other choices to improve our moods.

    One of the best ways to fight off SAD is with light treatment. This treatment is safe, accessible, and easy and there is a wide range of different light lamps available on the market. After about 3 weeks of using the lamp for about 30 minutes a day, users report that their symptoms greatly improve. Most of these lamps are small and simple, and can easily slip into your home's decoration­just switch it on and carry on with your normal day.

    When buying your light treatment device(设备), keep a few things in mind. Make sure that the light you are buying gives off at least 10, 000 lux of light. Less than that and the light might not be effective. There are many reviews online, and it will be easy to find the best lamp for you.

    Try to find one whose bulb is easy to find and replace. You don't want to be stuck trying to figure out how to put the lamp back together.

    Finally, do your full research. There are so many different types and styles of lamp. Do you miss exercising outside? There is even one that you can put to your treadmill（跑步机）in order to copy running outdoors.

    There are larger lamps which are considered to be the most effective. There are small, nice lamps that don't take up too much space. There are modern designs such as vintage­style light­bulbs. There are even happy lamp alarm clocks, which are like sunrise, giving their users a gentle, natural wake­up.

    So, no need to go on a trip to Jamaica to get some sun and shake out the winter blues­instead, invest in a happy light which will keep your home sunny and happy all winter long!

    The sun was shining and Clare felt like doing something active. She'd had enough of the moment of living in the past. What she really wanted was some skiing if she could get herself organized. She walked into the ski school office and within ten minutes had arranged a private class for the whole afternoon. One of the ski teacher would meet her at the ski lift station at the end of the village at midday. The ski hire shop next door rented her some skis and boots and she carried them back to the hotel. There she changed into some more or less suitable clothes and took the hotel's electric taxi down to the lift station. She was a bit early and had time to look around, and get nervous. She hadn't skied for about ten years, though she'd been quite good at that time. Everyone said it was liking riding a bike-you didn't forget how to do it. She stood there looking up at the mountains, trying to remember what to do.

    Madam Newton?" Yes," she said. And there was her ski teacher, looking exactly like all the other ski teachers she remembered sun-tanned, handsome and totally self-confident. Half an hour later all thoughts of the unhappy days had disappeared as she skied behind Bruno and concentrated on staying on her feet.

    "Upper body still, make your legs do the work, Madame", shouted Bruno over his shoulder. "Call me Clare, please" she said. "OK. Lean forward a bit more, Clare. That's it. Good. You are remembering now, en?" "Yeah, I am ... slowly. It's great. I'd forgotten what an amazing buzz skiing gives you".

    They skied down some different runs with Bruno being wonderfully encouraging, and she really did begin to feel confident on the skis. Going up in the lifts, Clare and Bruno chatted — just the usual "where are you from, what do you do" sort of chat, but it was pleasantly relaxing. In the middle of the afternoon, they stopped at an old farmhouse for coffee and apple cake. There were lots of other skiers doing the same. Clare felt as if she belonged - something about being part of a group, all with a shared interest, she supposed. It was a feeling she'd not had for a long time.

    Bruno said hello to a few people, and went over to talk to one of the waiters. Clare took the opportunity to study him a bit. Up until now, she'd just been skiing behind a man in a red ski suit, so it was interesting to see that he was quite tall, with curly brown hair and eyes to match. From the colour of his face he looked as if he'd spent his whole life in the open air. She guessed he was about forty.

    "Are you in Zermatt for long, Clare?" asked Bruno, after he'd been sitting with her a few minutes, "No, only a few days probably. Just a short break to get away from everything at home", replied Clare. She didn't feel like explaining the real reason. People looked at her differently when they knew. "But I'd like to do some more skiing. Would you be able to do anything tomorrow?"

    "I think so. But you'll have to book it through the ski school office. I can't arrange anything with you directly", said Bruno, putting on his gloves and standing up. "Come on. Let's do a bit more now." "Great," replied Clare. After another hour, Clare said, "Time to stop, I think," Bruno agreed. "You should have a sauna tonight. It'll help your body relax. Not so stiff (僵硬的）tomorrow, you know." Clare didn't care about stiff she was going to be tomorrow. She hadn't felt quite as good as this for months — full of fresh air, physically tired but in her mind — alive. Happy! Yes, that was how she felt.