The freezing Northeast hasn't been a terribly fun place to spend time this winter, so when the chance came for a weekend to Sarasota, Florida, my bags were packed before you could say “sunshine”. I left for the land of warmth and vitamin C(维生素C), thinking of beaches and orange trees. When we touched down to blue skies and warm air, I sent up a small prayer of gratefulness. Swimming pools, wine tasting, and pink sunsets(at normal evening hours, not 4 in the afternoon) filled the weekend, but the best part - particularly to my taste, dulled by months of cold- weather root vegetables- was a 7 a.m. adventure to the Sarasota farmers' market that proved to be more than worth the early wake-up call.

           The market, which was founded in 1979, sets up its tents every Saturday from 7:00 am to 1 p.m., rain or shine, along North Lemon and State streets. Baskets of perfect red strawberries; the red-painted sides of the Java Dawg coffee truck; and most of all, the tomatoes: amazing, large, soft and round red tomatoes.

Disappointed by many a broken, vine-ripened(蔓上成熟的) promise, I've refused to buy winter tomatoes for years. No matter how attractive they look in the store, once I get them home they're unfailingly dry, hard, and tasteless. But I homed in, with uncertainty, on one particular table at the Brown's Grove Farm's stand, full of fresh and soft tomatoes the size of my fist. These were the real deal- and at that moment, I realized that the best part of Sarasota in winter was going to be eating things that back home in New York I wouldn't be experiencing again for months.

Delighted as I was by the tomatoes in sight, my happiness deepened when I learned that Brown's Grove Farm is one of the suppliers for Jack Dusty, a newly opened restaurant at the Sarasota Ritz Carlton, where - luckily for me - I was planning to have dinner that very night. Without even seeing the menu, I knew I'd be ordering every tomato on it.

Yesterday and Today

    Life in the twenty-first century will be different from life today. Between then and now many changes will take place, but what will the changesbe?

    The population is growing fast. There will be many people in world and most of them will live longer than people live now.

    Computers will be much smaller and more useful, and there will be at least one in every home. And computer studies will be one of the important subjects in schools then.

    People will work fewer hours than they do now and they will have more free time for sports, watching TV and travel. Traveling will be much cheaper and easier. And many more people will go to other countries for holidays.

    There will be changes in our food, too. More land will be used for building new towns and houses for all the people. Then there will be less room for cows and sheep, so meat will be more expensive. Maybe no one will eat it every day. Instead they will eat more fruit and vegetable. Maybe people will be healthier.

    Work in the future will be different, too. Dangerous and hard work will be done by robots. Because of this, many people will not have enough work to do. This will be a problem.

    Businesses are finding more uses for Virtual Reality (VR) as the technology develops. VR is no longer only for gaming or enjoyment. An American company called Blue Goji is using VR to improve one's health by making exercise more fun.

    Blue Goji has offices in Austin, the capital of Texas. The company showed its cardiovascular (心血管的) workout machine, called the Infinity treadmill (跑步机), at the recent South by Southwest festival, an event held every year in Austin.

    A person using the treadmill wears a virtual reality headset when exercising. Before starting, the user tightens a belt to prevent falls. Then, the user plays a VR game while running on the machine. The game can transport the user into the virtual world, where he or she can be racing against virtual people.

    Recently, Leonardo Mattiazzi tested the Infinity treadmill. Mattiazzi said he had a strong feeling to actually get running and do something that pushed his limits. He said the experience was more interesting than running inside the gym without actually going anywhere.

    Constam said the active use of virtual reality helps solve a common problem while wearing a VR headset. She noted that a lot of VR experiences cause motion sickness because people are in motion during the game, but not moving in real life. But when the user is moving on the treadmill and in the game, the chances of motion sickness are reduced.

    However, users who tested the treadmill while wearing the VR headset each had a different experience. Constam said there generally is a learning curve for VR. The first time users feel lost, but "the more you do it, the more you get used to it," she said. Mark Sackler was a first time user. He said he felt a little sick at one point during the game. But he thought the experience was surprisingly realistic.

    After carefully studying the users' experiences, Blue Goji plans to make the treadmill available to the public in 2019.

    Insects(昆虫) are a very healthy food. They have almost as much protein(蛋白质) as meat from a pig or cow and are low in fat. Eating insects is also very good for the environment since they need less land and water than larger animals.

    Marcel Dicke, who studies insects, explained in a talk how insects also produce more meat from the food they eat. For example, imagine a farmer feeds a cow 10 pounds of food. Those 10 pounds of food produce about 1 pound of meat for people to eat. However, imagine the farmer gives a certain number of insects 10 pounds of food. Those 10 pounds of food produce 9 pounds of meat for people to eat!

    Eating more insects can also help people in poor areas. Many people can raise and sell insects, which can provide jobs and food.

    But insects will not replace animal meat very quickly. First, people in some countries would have to change how they think about eating insects. Many people in North America and Europe eat a lot of meat like beef and pork. But they do not traditionally eat insects. In fact, for many people in the west, eating insects sounds crazy. They believe insects are dirty and dangerous. Insects make them feel uncomfortable.

    Some people are trying to deal with this problem. For example, David George Gordon wrote a book named “The Eat-A-Bug Cookbook”, which tries to show people that insects can be delicious. Other insect experts travel around telling people about the benefits of eating insects. But they will still have a lot work to do.

    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.

    For many years, machines have been doing work that people once did, including some difficult jobs. Search and rescue operations in dangerous environments are often seen as the first areas that will employ high technology robots. But there is another area where they may soon take jobs traditionally held by human beings: the restaurant industry.

    Teams from around the world competed in early June at the DARPA Robotic Challenge Finals in California. A team from R. O. Korea and its robot, called DRC-Hubo, won first place in the competition. The second and third place finishers were from the United States.

    The robots were required to drive a vehicle, climb up steps and do mechanical work. Such activities are easy for humans to perform, but more difficult for machines.

    Not all of the competitors were successful. The failures showed how difficult it is to design effective walking machines.

    Recently, crowds gathered for the food machinery and technology show in Tokyo, Japan. They witnessed a robotic chef preparing food. Other machines cooked, baked tasty pastries and even made sushi.

    Akihiro Suzuki works at Yaskawa Electric, a company that develops robots. He says robots cannot do everything a human can, but they are able to work without becoming tired.

    He says robots cannot taste food, change heating levels or seasonings to get the best flavor. But he says if a food can be easily prepared, a robot can repeat the same movement to reproduce the same meal.

    One Japanese woman who saw the robots working wanted to bring them home. Masayo Mori says she would like to have a husband who could work like a robot. Suzumo Machinery demonstrated its sushi maker robot. It performs the often difficult work of wrapping the popular Japanese food. Hiroshi Monden is an official with the company. He says people all over the world now eat sushi, but there are not enough skilled workers to prepare for it. He says his machine can help anyone make sushi.