The idea of being able to walk on water has long interested humans greatly. Sadly, biological facts prevent us ever accomplishing such a thing without artificial aid—we simply weigh too much, and all our mass pushes down through our relatively small feet, resulting in a lot of pressure that makes us sink.

    However, several types of animals can walk on water. One of the most interesting is the common basilisk Basilicus basilicus, a lizard (蜥蜴)native to Central and South America. It can run across water for a distance of several meters, avoiding getting wet by rapidly hitting the water's surface with its feet. The lizard will take as many as 20 steps per second to keep moving forward. For humans to do this, we，d need huge feet that we could bring up to our ears in order to create adequate w hitting. ''

    But fortunately there is an alternative : cornflour. By adding enough of this common thickening agent to water (and it does take a lot), you can create a “non-Newtonian” liquid that doesn't behave like normal water. Now, if the surface of the water is hit hard enough, particles(粒子）in the water group together for a moment to make the surface hard. Move quickly enough and put enough force into each step, and you really can walk across the surface of an adequately thick Liquid of cornflour.

    Fun though all this may sound, it's still rather messy and better read about in theory than carried out in practice. If you must do it, then keep the water wings handy in case you start to sink--and take a shower afterward!

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    Half a century ago, Japan built the world's first high-speed rail network—a network that remains the gold standard in train travel today. Currently the country is now helping Texas build its own bullet train, a potential game-changer for transportation in the state.

    When it launched on October 1, 1964, the world's first high-speed rail network was known as the “super-express of dreams.” The first line in Japan's now world-famous shinkansen network was built against all odds, in the face of fierce public opposition, technical difficulties and astronomical costs.

    Half a century ago, the system was far humbler. In 1964, the first track was a 320-mile-long link between Tokyo and Osaka that reduced the trip from six-and-a-half hours (on conventional trains) to three hours and 10 minutes, traveling at a maximum speed of 200 miles per hour. For the first time, workers could get to meetings in one city during the day and be back home drinking a beer in the local pub that night.

    Not only did the train expand mobility profoundly, but also businesses appeared around the major stops as a growing emphasis on productivity swept across Japan. Today, the shinkansen network has 1,487 miles of track, with more set to open in the coming years. It seems that everything the shinkansen touches turns to city, and regions that are off the beaten track, so to speak, benefit greatly from the economic jumpstart brought by the train. New shinkansen lines are often proceeded by aggressive marketing campaigns promoting tourism in those areas, a strategy that seems to work.

    Despite its astronomical costs, it actually has saved more. Today, over 350,000 annual trips transport tens of millions of passengers all over Japan with efficiency—the average delay time is less than a minute. A research report titled 30 Years of High-Speed Railways: Features and Economic and Social Effects of The Shinkansen by Hiroshi Okada, estimates that the economic impact from the shinkansen train network, based on the time saved from faster travel, is approximately ¥500 billion ($4.8 billion USD) per year. Okada stresses that the cultural impact is also significant, a shinkansen offers people living far from urban centers “easy access to concerts, exhibitions, theaters, etc., enabling them to lead fuller lives.”

    Japan has a plan, known as the One-Day Travel Initiative. Its goal: regardless of where you are in Japan, it should only take you three hours to get to the nearest major regional city (Tokyo, Osaka, Nagoya, Sapporo or Fukuoka). The planned impact of this hyper-mobility is to discourage the tide of migration toward urban centers, like Tokyo, and encourage decentralization.

    My violin is like a soul mate that whispers words of wisdom to me. Together, we've gone through both tears and happiness.

    About 12 years ago, I made acquaintance with it following an order from my mom. Many hours of boredom were spent practicing it. And to make things worse, the disappointment in my teacher's eyes as I played the wrong notes was like an invisible（隐形的）hammer, striking on my heart. One day, I finally decided: I hate it!

    By chance, things changed when I was seven. I was at home lying on the sofa, wondering how those famous violinists dealt with this terrible dilemma. I searched online for the E-minor Concerto, a well-known violin work by German composer Felix Mendelssohn, and listened to it.

    A beautiful and mysterious sound came from the violin as the bow moved across it. It was like the music slid over the flowers, rose up, and started to fill the air. The violin's voice woke up the sun, made the trees green, and freshened the air. As the music changed, the sky turned back to gray. A gloomy shade covered the grass as all the sunshine disappeared. I could hear children crying and men shouting. It was like an invisible claw had grabbed my heart tightly, making it unable to beat.

    That glorious day set off my passion and interest in violin - I grabbed mine and never let it go. Before the memories faded, I stared at my instrument. Without hesitating, I picked it up, rosined（用松香擦）the bow, and began to play. Peace filled my heart.

    My violin has been by my side for 12 years. When I feel happy, an energetic tune makes it even better; when I'm deep in sorrow, a peaceful tune washes it away, when I'm walking on air, feeling especially pleased with my achievements, solemn（庄严的）tunes calm me down. Gradually, it has become a part of my life.

    My violin, shall I compare you to a summer's day?

    The Eiffel Tower is very famous in France. It is visited by 7 million visitors a year. The Eiffel Tower was designed by Gustave Eiffel in the late 19th century. On Monday, March 31st, 2019, it turned 130.

    The look of the Eiffel Tower is greatly loved by people today, but things were different when the design was first shown to the public. Many French artists thought that the design was ugly. However, Eiffel did not change a thing. He believed that once it was completed, people in Paris and visitors around the world would love the tower. He was certainly right.

    The tower became popular with the public as soon as it opened on March 31st, 1889, two years after the construction began. Over 3,000 people came to look at this new tower and even made the effort to climb the 1,710 stairs to the top. The 984-foot-tall Chrysler Building in New York City beat it.

    Today, the tower houses a number of restaurants on its first and second levels. The third level has been turned into a vast platform (平台). From there visitors can see the entire city of Paris. While visitors are allowed to take the stairs to the first two levels, the platform can only be got to by taking the elevators.

    To ensure that the “Iron Lady” always looks good, the tower is cleaned and repainted every eight years. It's an effort that takes a team of 25 workers, an entire year. If you travel to Paris one day, don't miss it, the excellent achievement.

    Do your children like to see adventure movies? The following are four adventure movies for kids.

    Toy Story

    In this story, toys come to life when nobody is watching. Woody, a cowboy doll, feels unhappy when a new spaceman figure Buzz takes his place as the favourite toy of six-year-old Andy. Buzz and Woody get into a fight and get trapped together in the next-door neighbour's house and they have to find their way home. In that journey, they form a close friendship and work together through everything.

    How to Train Your Dragon

    Young man Viking Hiccup wants to fight against the dragons that continually attack his town. But after finally catching his first dragon whom he names Toothless, Hiccup realizes that he no longer wants to kill it and instead treats it kindly. He learns that his people have misjudged the species.

    Up

    The story is about Carl Fredrickson, a 78-year-old man who sets out to realize his lifelong dream of seeing the wilds of South America. He ties thousands of balloons to float his house and to travel to Paradise Falls with an unwelcome companion Russel, who is an eight-year-old explorer.

    Despicable Me

    Gru wants to become the greatest thief by stealing the moon right out of the sky but he meets a challenge. The three girls he had adopted (收养) change his life in a way nobody would consider possible. The world's greatest villain (坏人) ends up being from being super-bad to a super-dad.

    In early November of 1942, my geology (地质学)class was supposed to go on a field trip to see the mica mine (云母矿). Although it rained, everyone showed up on time. I was the only girl in the class. We all fit into two cars.

    Near Deary, Mr. Tier, our teacher, went into a store to ask about the direction, while townsmen looked at us with curiosity. On the store owner's advice, we drove out into the hills for a few miles. Then we left the cars. We were afraid they would get stuck in the mud.

    Eventually, we located the mine near the top of the mountain. There was a very small hole, running about two or three hundred feet into the mountainside. The passage (通道) was so narrow that we could touch both sides with our hands, and not tall enough to allow us to stand up straight. The first boy held the torch; we took hold of the backs of each other's coats, in a line, and followed him in, ducking our heads. After getting in, we were disappointed because it was not the mine our teacher was looking for.

    The rain was coming down hard as we started back to the cars to go home. Back at Deary, we went into a drugstore and stood around its big heating stove to dry out. The clerk was a middle­aged lady. Seeing our entirely wet hair and clothes, she handed each of us a cup of hot water immediately and asked if there was anything wrong with any of us.

    Hiking eight miles in the rain had not reduced our interest at all. We all felt we had had a wonderful time, even if we didn't find the mine.