Here is an astonishing and significant fact：Mental work alone can't make us tire. It sounds absurd．But a few years ago, scientists tried to find out how long the human brain could labor without reaching a stage of fatigue(疲劳). To the amazement of these scientists, they discovered that blood passing through the brain, when it is active, shows no fatigue at all!

    If we took a drop of blood from a day laborer, we would find it full of fatigue toxins (霉素) and fatigue products. But if we took blood from the brain of an Albert Einstein, it would show no fatigue toxins at the end of the day.

    So far as the brain is concerned, it can work as well and swiftly at the end of eight or even twelve hours of effort as at the beginning. The brain is totally tireless. So what makes us tired?

    Some scientists declare that most of our fatigue comes from our mental and emotional (情绪的)attitudes. One of England's most outstanding scientists, J. A. Hadfield, says, “The greater part of the fatigue from which we suffer is of mental origin. In fact, fatigue of purely physical origin is rare. ”Dr. Brill, a famous American scientist, goes even further, He declares, “One hundred percent of the fatigue of sitting worker in good health is due to emotional problems.”

    What kinds of emotions make sitting workers tired? Joy? Satisfaction? No! A feeling of being bored, anger, anxiety, tenseness, worry, a feeling of not being appreciated— those are the emotions that tire sitting workers. Hard work by itself seldom causes fatigue. We get tired because our emotions produce nervousness in the body.

    Our news is constantly filled with the reality of death and dying. And each of us, if we live long enough, experiences the loss of persons we loved. Children ages eight through ten were asked what they thought about death,and these are some of their answers:

    “When you die,God takes care of you like your mother did. When you were alive,only God doesn't yell at you all the time.''(Beth,9)

    “When you die,they bury you in the ground and your soul goes to heaven,but your body can't go to heaven because it's too crowded there already.” (Jimmy, 8)

    “Only the good people go to heaven. The other people go where it's hot all the time like in Florida. ” (Judy,9)

    “Doctors help you so you won't die until you pay their bills.”(Stephanie,9)

    I've observed that the loss of a loved one can be one of the most difficult things we humans can face. I've known friends of sick and dying people to sit by a bedside or in a hospital room for hours,even days, at a time. I've seen food in homes of people who are dying overflow from kitchen to dining room—food brought by comforting friends from church and con cerned neighbours. And I've observed friends just listen for as long as it takes.

    When U.S. Congressman Sam Rayburn (1882—1961) discovered that he was ill,he announced to the House of Representatives he was going home to Texas for medical tests. Some wondered why he did not stay in Washington where there were excellent medical facilities. His answer was a beautiful tribute (颂词) to friendship:"Bonham is a place where people know it when you're sick,and where they care when you die. ”

    No one wants to go through difficult times alone. So Rayburn traded the best of medical technology for the closeness of loving friends. He knew that good friends are good medicine. Often the best.

    What is the most important day of your life? For many people the answer is your Wedding Day—the day when you marry another person and promise to live together as husband or wife for the rest of your lives.

    Wedding celebrations differ from country to country—in China the bride wears red while in India the wedding continues for three days. However, in Britain the bride wears white and wedding usually only lasts for one day.

    In the UK it is possible to get married in a religious or civil ceremony. A religious ceremony takes place in a church. A civil ceremony, on the other hand, can be held in an office, in a hotel, or even on a boat.

    On the day of the wedding the bride and groom are kept separate until the ceremony. It is said to be bad luck if the groom sees the bride in her dress before the wedding. The bride arrives at the ceremony accompanied by her father and bridesmaids. They officially give her away to her new husband. During the ceremony the happy couple exchange vows and give each other wedding rings which they will wear forever. At the end of the ceremony they kiss.

    Afterwards they go outside where friends and family throw rice or color papers over them and then they go on to the reception where there is a lot of food and drink. After the meal the father of the bride and the best man make speeches. Then the bride and groom take the first dance. It is a lot of fun. Finally, at the end of the party the newly-weds leave to go on honeymoon, usually to a very romantic destination.

    Every month we look at a different artist. We think Haroshi is super cool—he makes sculptures(雕塑) from skateboards.

    Haroshi is in his late 30s. He's a skateboarder but he also makes things from wood. He began skateboarding when he was 15 years old and he loved it. He used to skate every day. Now, if you know anything about skateboarding, you'll know that skateboards don't last forever because they break. But Haroshi didn't throw his out because he was fond of them. Over time he built up a big collection and at the same time he learnt about all the different types of skateboard. Surprisingly, not all skateboards are of the same shape and actually they are often built in different ways. By the time he was 25, he had an enormous collection of old skateboards.

    He decided he had to do something with them so he started to cut them up. As he was doing that, he noticed some interesting patterns in the wood. He then cut more and stuck them on top of each other. The first thing he created from the wood was a piece of jewelry. He created something new from something old.

    Nowadays, however, he is known for his extremely large 3D wooden sculptures. His ideas generally come from skateboarding culture, ranging from skateboarding cats to cool trainers, but also everyday topics such as hurting yourself, getting better, being crazy about something and of course, growing up. All skateboarders will understand these. Haroshi has made over 40 pieces and each piece takes a very long time. There is no doubt that he is very talented but he's had no formal art training. He taught himself.

    Haroshi held an exhibition in London last month and three of us from @teenattack went along. As we entered the first room, we saw a huge bird that covered one wall. It was absolutely enormous! There was also a sculpture called Ordinary life. It looked like a broken leg—a very common problem, of course. It's incredible to think that these sculptures are all made from broken skateboards. But there's something else that is really interesting about Haroshi's work.

    In the twelfth century a sculptor called Unkei placed a glass ball in each of his works to show the heart of the piece. Haroshi also places something inside his sculptures—a piece of broken skateboard. In this way, he gives his sculptures life. We think that is just awesome!

    UK-based swimming pool manufacturer (制造商) Compass Pools has announced plans for the world's first 360-degree infinity (无限) pool. Titled Infinity London, the pool would contain 600,000 liters of water, and would sit at the top of a 55-story hotel.

    According to Compass Pools' plan, the pool would feature transparent (透明的) walls and floor, offering views across London's skyline and down into the hotel below. These walls would be made of cast acrylic, a material chosen to make sure that the material is completely clear.

    The main problem with designing the pool was how to make sure entry or exit from the pool without affecting the view. Speaking about this design, Compass Pools' technical director and designer Alex Kemsley explained，"Normally a simple ladder would suffice, but we didn't want stairs on the outside of the building or in the pool as it would spoil the view – and obviously you don't want 600,000 litres of water running down through the building either. The solution is based on the door of a submarine, coupled with a rotating spiral (螺旋的) staircase which rises from the pool floor when someone wants to get in or out."

    Take a look at early models of how the pool might look in the gallery above. At present, no contract has been made but building work could begin as early as 2020.

China made public recently specific designs for its manned lunar mission, which {#blank#}1{#/blank#} (schedule) to be achieved before the end of this decade. The plan is to launch two Long March 10 carrier rockets from the Wenchang Spacecraft Launch Site in Hainan Province to transport a lunar landing module(舱) and {#blank#}2{#/blank#} manned spacecraft to lunar orbit. When {#blank#}3{#/blank#} (land) on the moon, the astronauts will drive a rover(探月车) to carry out scientific tasks and collect samples.

{#blank#}4{#/blank#} (design) and engineers are developing the Long March 10 carrier rocket to achieve this goal. The manned spacecraft for the mission is also {#blank#}5{#/blank#} the middle of its research and development stage. In the long term, China intends to construct a lunar scientific outpost to conduct extended explorations and technology demonstration operations.

The moon is the {#blank#}6{#/blank#} (near) extraterrestrial body(地外天体) that humans can reach {#blank#}7{#/blank#} (base) on current technologies. Manned missions to the moon will be a realistic {#blank#}8{#/blank#} practical step to start with for expanding our exploration of deep space. Meanwhile, it is {#blank#}9{#/blank#} (scientific) meaningful for us to continue to explore the moon. That is {#blank#}10{#/blank#} it will help scientists better understand the origin and the evolution of the solar system as well as the composition of planets.