Chinese New Year for Kids

    Chinese New Year for Kids is a full color paperback book with beautiful Chinese illustrations (插图). This is a hands-on workbook for parents and teachers, written for children from ages 3 to 12 years old, for use in the classroom or at home. Music, physical movement, art, and food all add to the atmosphere of taking an imaginary trip to China during the Chinese New Year.

   The Polar Express

One couldn't select a more delightful and exciting premise (前提) for a children's book than the tale of a young boy lying awake on Christmas Eve only to have Santa Claus sweep by and take him on a trip with other children to the North Pole. And one couldn't ask for a more talented artist and writer to tell the story than Chris Van Allsburg.

   The Secret of Saying Thanks

Perhaps you'd like to know a secret, one of the happiest ones of all. You'll discover it all on your own, maybe when you least expect. If you've not yet discovered the secret of saying thanks, it's waiting for you. The secret can be found in the sunrise that offers promises for the day ahead, or in the gentle shade of a tree sheltering you from the hot rays of the sun.

   The Runaway Pumpkin

When Buck, Billy and their little sister Lily spy the biggest pumpkin they've ever seen, they can't resist (抵制). Buck and Billy try to roll the pumpkin down the hill to show everyone, but it's too big! Before they know it, it's rolling out of control down the hillside. It knocks over Gran dpa Baxter and makes him think of pumpkin soup. And when Poppa Baxter finally stops, all he can think of is pumpkin bread.

    Think of a seed buried in a pot. It's dark down there in the potting soil. There's no light, no sunshine. So how does it know which way is up and which way is down? It does know. Seeds send shoots up toward the sky, and roots the other way. Darkness doesn't confuse them. Somehow, they get it right.

    More surprisingly, if you turn a seedling (秧苗) or a whole bunch of seedlings upside down, as Thomas Andrew Knight of the Royal Society did around 200 years ago, the tips and roots of the plant will sense, “Hey, I'm upside down. Look! I. will turn my way to the right direction and do a U-turn.”

    How do they know? According to botanist Daniel Chamovitz, Thomas Knight about 200 years ago guessed that plants must sense gravity. Knight proved it with a crazy experiment involving a spinning plate.

    He attached a bunch of plant seedlings onto a disc. The plate was then turned by a water wheel powered by a local stream at a speed of 150 revolutions (旋转) per minute for several days.

    If you have been at an amusement park in a spinning teacup, you know that because of centrifugal force (离心力) you get pushed away from the center of the spinning object toward the outside.

    Knight wondered, would the plants respond to the centrifugal pull of gravity and point their roots to the outside of the spinning plate? When he looked, that's what they'd done. Every plant on the disc had responded to the pull of gravity, and pointed its roots to the outside. The roots pointed out, and the shoots pointed in. So Thomas Knight proved that plants can and do sense the pull.

    A team of engineers at Harvard University has been inspired by Nature to create the first robotic fly. The mechanical fly has become a platform for a series of new high-tech systems. Designed to do what a fly does naturally, the tiny machine is the size of a fat housefly. Its mini wings allow it to stay in the air and perform controlled flight tasks.

    “It's extremely important for us to think about this as a whole system and not just a bunch of individual components (零件),” said Robert Wood, the Harvard engineering professor who has been working on the robotic fly project for over a decade. “The added difficulty with such a project is that actually none of those components are off the shelf and so we have to make them all on our own,” he said.

    They engineered a series of systems to start and drive the robotic fly. “The seemingly simple system which just moves the wings has a number of individual components, each of which individually has to perform well, and then has to be matched well to everything it's connected to,” said Wood. The flight device was built into a set of power, computation, sensing and control systems. Wood says the success of the project proves that the flying robot with these tiny components can be built and manufactured.

    Wood says the design offers a new way to study flight mechanics and control at insect- scale. Yet, the power, sensing and computation technologies on board could have much broader applications (应用). “You can start thinking about using them to answer open scientific questions, you know, to study biology in ways that would be difficult with the animals, but using these robots instead,” he said. “So there are a lot of technologies and open interesting scientific questions that are really what drives us on a day to day basis.”

    My grandfather grew up in war-torn Europe. When German soldiers occupied his hometown, the thriving city of Tarow, Poland, he refused to obey them and eventually joined the Soviet army to fight for his country's freedom. “Stand straight, stand tall,” he told himself.

    After the war, in 1947, he boarded a boat for Manhattan. He was hungry and suffering from seasickness. All alone in a new country, he was frightened about his future. Still, he marched head-on into the hustle of the streets of New York. Soon he met other European immigrants, each of them trying to find his or her own way. If they could do it, why couldn't he? “Stand straight, stand tall,” he would remind himself.

    Thanks to the help of a loyal and trusting friend, my grandfather gained a jewelry booth on Canal Street, New York City. He once told me how nervous he was on that first day of work. He was not only trying to learn this tough new business, but also a new language.

    To his surprise, the men in neighboring booths－who could have taken advantage of him－offered their help and advice. Within months, my grandfather was commanding his spot behind the counter, selling diamonds and cultured pearls as if he'd been doing it his whole life.

    Stand straight and stand tall.

    In later years, my grandfather would take both my mother and her sister down the aisle at their weddings. As he stood with each of them, he thought about their new beginnings, and of the adventures and journeys they would experience together. He also thought about the children who would one day carry on his family name.

    I am so proud to be one of those children. Listening to my grandfather's remarkable experiences has changed the way I view my own life.

    The number of insects in the world has fallen by 45 percent in the past 35 years. Scientists say this could be dangerous for humans. A report on insect numbers has been published in the journal "Science". It says the human population has doubled since 1980 while the number of insects has nearly halved. One of the biggest reasons for this loss of insects is the act of cutting down trees or burning them. Many of the places where insects live are disappearing because of new cities and land being used for farming. Another reason is global warming. Scientists say that in the UK, the number of butterflies, bees and wasps(黄蜂) has fallen by up to 60 percent. Many countries are worried about the disappearance of them.

    Scientists say the decline in insect populations will lead to many problems for humans. One of the biggest dangers is that there will be fewer insects to pollinate flowers. This means that farmers will have problems growing food. The lead author of the report, Professor Rodolfo Dirzo, said falling numbers of insects could also lead to more diseases in humans. He said rats and mice would have less food to eat so they will move to cities and bring diseases with them. Dr. Ben from London University said we needed to stop more insects from dying. He added that scientists must understand what species(物种) are winning and losing in the fight for survival. He said this knowledge would help us to protect the "helpful" insects.

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