NASA might be famous for sending rockets up to space quickly. But it will be more famous for making your next holiday come more quickly.

    The space agency is working on a new plane, which could solve the problems of supersonic(超音速的) flight and vastly increase the speed of journeys abroad. If successful, the plane would be able to fly between New York and London in just three hours. And it would reduce the time spent flying other journeys by a half, since it could be used more broadly. Until now, the problem with such planes has been the sonic boom(声爆), made famous by the original Concorde. That happens when a plane reaches supersonic speeds.

    It is a thunderous noise that upsets people on the ground— disturbing animals and even causing physical problems to materials and houses underneath. It was that effect that led Congress to ban such planes from being used over the US land, a decision that in turn was responsible for Concorde's failing to be commercially used.

    In view of the problem, the space agency has developed a new technology and tried it out in wind tunnels, and now believes that it could be put to commercial use. That plane will fly as high as 55,000 feet—far higher than normal planes—and make a sound of only 60 decibels. That's far less than 90 decibels thrown out by normal planes, and is roughly in line with a car on the motorway or a busy restaurant.

    “As long as we can get endorsement from the general public, the plane will probably be something that's acceptable,” said Peter Coen, project manager for NASA's commercial supersonic research team, in a new Bloomberg report. “If we get approved, we will have the full-sized version of the plane tried out and the plane will be put into use.”

    The older we get, the more we learn, the better able we are to know what's right. Right? Not always. Sometimes the aging process can remove completely the natural aspects that keep us curious and give us strength to figure out what to do. As a matter of fact，children of all ages teach us lessons in our own lives.

    When a kid says“ That wasn't nice 'or' I don't like your shirt” or “I hate that kind of food!”, it's a natural reaction(反应)to shush the child not to do so, but what they say is true. When children see a wrong being done, they will interrupt to say it's not right. As adults, we usually sit nearby rather than hold a strong opinion or say something that might be unpopular.

    Kids cry, stamp( 跺) their feet or yell with excitement while it isn't socially acceptable for an adult. Letting emotions out and then moving on to deal with things, so jump and yell "yippee" when you are happy about something. Have a good cry when being upset. Stamp or throw a pillow when being alone and need to release. Most of life becomes a series of things once you reach a certain age. Finding pleasure and laughing seems out of place or silly when gaining knowledge or skills.

    “Why is the sky blue?” “ How much does an elephant weigh?” There are certain things that the Internet can tell you, but what about learning something in the first hand like the science experiment in the kitchen, digging up rocks in the backyard, how high the bicycle's wheels can fly over the gravel( 砂砾)? Don't stop exploring and find new learnings in the real world.

    British scientists have discovered the willow trees planted at an angle could increase sugars for biofuel production.

    Willow is a fast-growing species. It is already used to produce fuels for the renewable heating and power market. In future it could also help to produce biofuel to power vehicles. It has been known that when willows growing in the wild are blown sideways, they tend to produce more sugars. But for a while it has not been known why this happens.

    Researchers at Imperial College London, led by Dr Nicholas Brereton and Dr Michael Ray of the Department of Life Sciences, have now solved the mystery. When the tree is blown sideways, its genes (基因) produce large numbers of sugar molecules (分子) to straighten the tree upwards.

    “This is an important breakthrough. Our study now shows that natural genetic changes are related to these differences. And this could well be the key to unlocking the future for green energy from willow,” said Dr Brereton.

    The research was carried out under lab conditions. The willows were grown at an angle of 45 degrees. They were compared to willows which grow naturally straight upwards. The team then looked for the same effect among the willows growing on the Isle of Orkney where strong winds cause the trees to bend at extreme angles. They discovered that the Orkney trees produce five times the amount of sugars found in willows grown in sheltered conditions.

    Willow is widely planted across the UK. The results show that biofuel crops such as willows could be grown in climatically changeable conditions where chances of growing food crops are limited.

    The study is published in Biotechnology for Biofuels.

    On March 2, at the meeting held ahead of the yearly session of the CPPCC National Committee(全国政协大会), interpreter(口译员)Yao Mengyao caught the attention of many with her "quick reaction and correct translation," Xinhua noted,

    Yao began her studies in English in primary school where she would listen to English tapes. She ofen spoke to her teacher about English-related topics that were not limited to the ones in her textbooks, "They were always very professional uncommon topics, "said Yao's senior school teacher Shen Yingzi,

    Like Yao, Zhang Lu is a regular interpreter for China's top leaders, including Premier Li Keqing and former Premier Wen Jiabao Her effortless but on-point translations of ancient poems mentioned by former Premier Wen won praise.

    So how do interpreters reach their top positions?

    The reason for their success is largely hard work. Other than when they go out on visits with Chinese leaders, the interpreters follow a very strict schedule. Zhang called this schedule"an unshakable plan". They listen to foreign media such as BBC, VOA or CNN through TV or radio for their training.

    It is reported that a month before the two sessions(两会), the interpreters get notice of the spokesperson they are going to interpret for. They then make full use of this month to prepare themselves. They try to predict the questions that might be asked and consider the sayings the spokesperson might use when they answer the questions.

    In truth, there is no secret to their success: It's all a matter of skill and hard work.

    Do you want to do some volunteer work while exploring Africa? Then join in our 21-Day Flagship Program. Step onto the flat, sandy land of Ghana, and you'll immediately hear the laughter of children everywhere. This laughter will be the constant of your trip and a steady source of energy while you volunteer among one of Africa s kind communities.

    Community Service

    Volunteer in primary schools, working with children of different ages to help improve their English skills, tutor those who might be falling behind and contribute to each school's needs, including making improvements to the facilities. Split your time between teaching and campus refurbishment (翻修) projects to serve every aspect of the school, and learn all about education in Ghana.

    Hands-on Learning

    Participate in workshops such as batik cloth dyeing (蜡染), drumming, dancing and crash courses in the native language, Ewe or Krobo. You'll be given a Ghanaian name by the local chief of your village, and visit a seamstress (女裁缝) to have custom clothing made out of colorful fabrics you purchase. On the 21-Day Flagship Program, you'll hear about the nation's history as a center of the slave trade, and visit Fort Prinzenstein to truly understand the weight of this topic.

    Adventure

    You'll also experience the natural surroundings of Ghana with a beautiful waterfall hike: On your 21-Day Flagship Program, go on a two-night trip where you'll get to visit a monkey shelter.

    Lodging

    Global Leadership Adventures (GLA) operates two Home Bases for the 21-day program. Both are located outside of the capital city of Accra in rural village settings. Accommodations are basic, but clean and safe. Students sleep in rooms with roommates, and have access to shared bathrooms with cold-water showers.

    Dates

    June 26-July 16, 2019

    July 9-July 29, 2019

    July 20-August9, 2019

    Duration: 21 days

    Tuition: $5,399

    Community Service Hours: 60

    For more information, please call 1-858-771-0645 or send an email to info@experiencegla.com.

    A new officer with the Huntington Park Police patrols (巡逻) local parks 24 hours a day seven days a week. He doesn't need rest, coffee breaks, a salary or medical insurance, and that is because it is a Robocop.

    The main function of the Robocop is to scan and film the surroundings. Besides cameras with night vision that report 360 degrees, it also has a distress button which is located here, so if somebody is to need assistance or they want to contact the communication center, they can do it by way of that distress button. There are people that are monitoring on the other end.

    This newest police employee is self-charging. It's easy to program it and make changes to the software if necessary. Its maintenance (维护) costs are roughly 75 thousand dollars a year. It travels the entire park. It is a programmed path, but the police are able to change the path and adapt it.

    The Robocop can record the license plates (车牌) of passing cars and check them against an online database of stolen cars. It can also help locate a lost iPhone because it is able to determine a smartphone's MAC address. The police can see from the robot if something wrong happens and then come and figure it out.

    The Robocop can't replace its human handlers. The whole goal is to give police more time to do things machines can't do. The police have been having some concerns about safety of the parks and want an extra set of eyes that will help patrol a 24/7.Robocop's creators believe this model known as K5 is best used for providing security at public places like hospitals, parking lots, parks and airports. So far, it seems to be working out just fine.