Ques:Article: While very young unmanned aircraft industry looks at ways to improve small unmanned aircraft systems (UAS) for specific tasks such facility security, infrastructure inspection, or precision agriculture, a New Mexico-based aerospace founder is thinking bigger and longer-term ones. Titan Aerospace, a one-year-old aircraft designer, last week unveiled its Solara 50 and Solara 60 unmanned aircraft. These are two large solar-powered>> high-altitude vehicles the company plans to send up into space for weeks,months>> and eventually years at a time without ever having to land. Titan doesn't refer to these concept aircraft as "drones " or "unmanned aircraft system," but instead calls them "atmospheric satellites" for their ability to remain in the sky for extended periods of time just as orbital satellites do. The company hopes to provide a platform of less than $2 million that governments, private industry, and research institutions can put high into the atmosphere for extended periods of time for a little part of the cost of a space satellite. The idea is that an atmospheric satellite can conduct most of the same operations as an orbital one: atmospheric observation and weather monitoring, communications relay, oceanographic research, and earth imaging. Other operations are impractical for space satellites, such as border security, maritime traffic monitoring and anti-piracy operations, disaster response, or agricultural observation. And with continuous flight time of up to five years, Solara's aircraft would have endurance on par with (......) many small satellites, making them a more attractive choice for a range of these applications. "If you have to go up to the orbital satellite and rent that service>> that's a lot of money," says Dustin Sanders, Titan's chief electrical engineer. "And launching a satellite, that can cost billions of dollars. We're trying to do a single-million-dollar-per-aircraft platform. And the operation cost is almost nothing--you're paying a little money and make sure the aircraft... Question: Which of the following is NOT the feature of Solara 50 and Solara 60? Yes or no, is the answer "They need adjusting once a month."?

Ans:No
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Ques:Article: Most musicians agree that the best violins were first made in prefix = st1 /Italy. They were made inCremona,Italy, about 200 years ago. These violins sound better than any others. They even sound better than violins made today. Violin makers and scientists try to make instruments like the old Italian violins. But they aren't the same. Musicians still prefer the old ones. No one really knows why these old Italian violins are so special, but many people think they have an answer. Some people think it is the age of the violins. They say that today's violins will also sound wonderful someday. But there is a problem here. Not all old violins sound wonderful. Only those from Cremonaare special. So age cannot be the answer. There must be something different aboutCremonaor those Italian violin makers. Other people think the secret to those violins is the wood. The wood of the violin is very important. It must be from certain kinds of trees. It must not be too young or too old. Perhaps the violin makers of Cremons knew something special about wood for violins. But the kind of wood may not be so important. It may be more important to cut the wood in a special way. Wood for a violin must be cut very carefully. It has to be the right size and shape. The smallest difference will change the sound of the violin. Musicians sometimes think that this was the secret of the Italians. Maybe they understood more than we do about how to cut the wood. Size and shape may not be the answer either. Scientists measured these old violins very carefully. They can make new ones that are exactly the same size and shape. But the new violins still do not sound as good as the old one. Some scientists think the secret may be the varnish, which covers the wood of the violin and makes it look shiny. It also helps the sound of the instrument. No one knows what the Italian violin makers used in their varnish. So no one can make the same varnish today. There may never be other violins like the violins of Cremona. Their secret may be lost forever.... Question: Some people think that modern violins _ . Yes or no, is the answer "will sound better in the future"?

Ans:No
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Ques:Article: Wild I was 16 when my father finally decided he would send me to wilderness camp for several months. He had threatened to do it many times before, but my mother had always managed to prevent him from doing so. This time he insisted on doing it. The latest incident was the last straw. Impulsively , I hade pushed Mr. Ford, my math teacher, down a flight of steps at school. He broke his arm in two places. Anyway, he had agreed not to accuse me as a favour to my dad, who was in the middle of a tight race for sheriff in our town. But my _ behaviour had my dad's closest advisor talking. "John, he's your son and he's a kid, but he is dragging you down," I heard Jake Hutch tell my dad through his closed office door the night after I pushed Mr. Ford. "If you can't make your son obey the rules, how can you make the law obeyed in this town?" So, off to Pisgah National Forest I went. I imagined hours of untold abuse at the hands of some strong sergeants . I was determined no to be broken. I was who I was. Nearly every day for six months, a small group of other troubled teens and I carried our 30-pound backpacks on a difficult journey covering about 10 miles. We hiked in a rough wilderness that seemed untouched by civilization. Our sergeants were firm but kind, not frightening as I had imagined. We learned how to make a fire without matches and create a shelter with branches and grass. We learned which plants were safe to eat out in the wild. I felt myself change. I was calm and often reflective. My old, impulsive self was gone. One morning, six months later, my dad came to pick me up. I ran to hug him and saw relief and love in his eyes. "So what's it like being sheriff?" I asked on the ride home. "I lost the race, Danny," he said. "I'm sorry, Dad." I knew my behaviour probably had a lot to do with hid defeat. Dad squeezed my shoulder and brought me close. "As long as I don't ever lose you, I'm okay." Question: The author was finally sent to wilderness because _ . Yes or no, is the answer "he pushed his math teacher down the stairs"?

Ans:No
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Ques:Article: Energy pod: It was designed by a US company with NASA technology. It puts the human body in the best sleeping position and blocks outside noise to create an ideal napping experience. Silicon Valley high-tech companies such as Google provide the Pod for employees. White noise radio: White noise is a sound signal that contains equal power and frequency. Some radios provide white noise to mask other noises so that people can sleep without disturbance. High-tech sleepwear: A US-based company designs a nightgown with special fabric that stimulates blood flow to tired muscles helping one relax in deeper restorative sleep. Emu pillow: Inspired by emu that buried its head in sands when it's scared, a type of pillow has been designed in China for office workers to take a nap, safe and sound. It turns the computer desk into a sleep hub with even two pockets to store the hands. Question: How do you probably get the information? Yes or no, is the answer "From a newspaper."?

Ans:
No
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