When the evening is coming, my dear son and I are preparing for the tape time. “Shoes on,” I remind 9-year-old Sam. “Snakes are always waiting for the chance to kiss you. But with our feet stepped into my car, we are safe.” We take blankets and cups of milk and head out to the shelter that serves as our garage. This has become our bedtime habit.

    I press “play.” A motherly voice fills the car. My mother and my aunt send us books on tape obtained from secondhand shops or rescued from the back of drawer. Maybe no one in England lays cassettes anymore, but I still love them.

    Sam rests on his seat. He's sitting in the front seat. I am listening to the cassette. But I am also thinking. In a month's time, my boy will be 10. Next year, he will be 11. And so it will go on, until he leaves me and his father and his sister to live out his own stories— as it is only right and proper he should.

    Will he think back to the times when he sat in the dark in a car in Africa, listening to tales of Wales in World War Ⅱ, the finest lady detective of Botswana, or a country he has visited, and tells me he finds them “very interesting”? Will he think , when he is grown-up, the poor mum always makes the ancient tape player which is out of date work?

    I like to believe that he will recall those wonderful moments. By then, perhaps, my child will realize a deep love of sharing and understanding by listening to the old tape player. I hope Sam will think that these evenings we spend in the car are a story themselves. It is his own first chapter. In time my boy will ease off the hand brake and roll out into the world. Until then, I'll keep pressing “play”.

    It was the men's skating finals of the Winter Olympics when I was 16. Someday I'd be in the Olympics. In fact, it was my dream.

    That night I lay on our living room floor excitedly watching the battle between the Brians: American Brian Boitano facing Brian Orser in Canada. Both of them had been world champions. Both of them deserved to win. Naturally I was for Brian Boitano, a northern Californian like me. We had skated on the same ice. I held my breath in amazement. Boitano performed successfully. The gold medal! I jumped in the air when his score went up.

    But what happened next is what I'll never forget. Brian Boitano sat in front of the camera with his coach, surrounded by a group of journalist. He was talking about his career and his medal, talking to the whole world. A terrible sinking feeling went through me. I could never be in the Olympics, I thought…I could not talk in public like that. Just the idea of a press conference terrified me.

    I loved skating partly because I didn't have to talk. I could express myself with my jump sand dances better. I didn't have to stand up and give a speech like some teachers expected. I could feel the blood rush to my face if I thought a teacher was going to call me. I stared at my shoes. I was sure I'd make a fool of myself.

    The next day I was at the rink (溜冰场) as usual. I was practising a combination of jumps that had once seemed impossible. I worked very hard the next few years—on the ice and especially off. After journalists talked to me and although my heart pounded every time I spoke to them, I got to know them. They became familiar faces. And they got to know me. So when my big moment came four years after Brian's, I was ready.

    Sometimes I think my biggest accomplishment was not winning the gold but talking to the press afterwards. When you do the thing you fear most, you put an end to fear.

    Fear can stop you dead in your tracks. Fear can kill a dream. What are you afraid of? What scares you more than anything else? This year, walk right up to it and conquer it, step by step.

    Some materials are obtained from natural resources that are changed by chemical processes in a laboratory. The resulting artificial materials are synthetic, or human-made.

    Plastic is a synthetic substance, obtained from petroleum, a fossil fuel. The molecules（分子）in petroleum are split and then linked into chains. Plastic is an example of a polymer, a material made of repeating patterns of atoms linked together. Most polymers are synthetic. They are made by polymerization, the process of chemically linking many smaller molecules to form a larger molecule that has different physical features. Some polymers, such as proteins, occur naturally.

    Plastic is a key component of many products. When heated into an almost-liquid form, plastic can be made into fibers, sheets, or molds（模具）. It can be mixed with other elements to remain flexible, or it can harden into a solid. Plastic fibers can be made into clothing or carpeting. Sheets of plastic can be made into plates. Molded plastic can be sued for protective helmets or car bumpers.

    Most plastics can be reheated and remolded repeatedly. This feature makes plastic very easy to use. Polymers can be pulled into fine strings or molded into almost any kind of shape. For example, tubes of plastic can be shaped into bottles by different processes. One such process is extrusion blow-molding. Most plastics are also resistant to many chemicals that might harm other materials. This quality is the reason that so many cleaning liquids are packaged in plastic bottles.

    Plastics are good insulators that can stop electricity or heat to pass through. Look around your kitchen, and observe where plastics are used. Pot handles are sometimes made of plastic, as are cooking tools, toaster controls, and microwave cookware. Food-storage wraps and containers may be made of plastic. Take a walk outdoors, and note all the plastic items you see. Gardening tools, such as watering cans and sprayers, are often made of plastic. Swings and slides made of plastic do not become as hot as metal, so they are safer for play. Because plastics can be heated, remolded, and made into something else, they can be recycled and reused.

    Many people have long dreamed of being able to fly around as simply as riding a bicycle. Yet the safety and strength of a flying bike was always a big problem. Over the past 10 years, developments in technology have moved the dream of personal flying vehicles closer to reality. Now, two groups of inventors say such vehicles may be available soon.

    The British company Malloy Aeronautics has developed a prototype (原型) of its flying bicycle. Grant Stapleton, marketing sales director of Malloy Aeronautics, says the Hoverbike is able to get in and out of small spaces very quickly." It can be moved across continents very quickly because it can be folded and packed," he adds.

    Mr. Stapleton says safety was the company's main concern. He says the designers solved the safety issue by using overlapping rotors to power the vehicle.

    The company is testing a full-size prototype of the Hoverbike, which will most likely be used first by the police and emergency rescue teams.

    In New Zealand, Martin Aircraft Company is also testing a full-size prototype of its personal flying device, called the Jetpack. It can fly for more than 30 minutes, up to 1, 000meters high and reach a speed of 74 kilometers per hour.

    Peter Coker is the CEO of Martin Aircraft Company. He said the Jetpack "is built around safety from the start". In his words, “Reliability is the most important element of it. We have safety built into the actual structure itself, very similar to a Formula One racing car.

    The Jetpack uses a gasoline-powered engine that produces two powerful jet streams. Mr. Coker says it also has a parachute that would be used, if there should be an emergency. "It starts to work at very low altitude and actually saves both the aircraft and the pilot," he adds. Mr. Coker says the Jetpack will be ready for sale soon.

    BackJoy Orthotic Seat: Easy, Drug-Free Relief from Back Pain

    Why BackJoy?

    BackJoy is an innovative device that provides relief from back discomfort by aiding in maintaining your posture (姿势) anywhere you sit, hard or soft seats.

    Proven effective � over 2.0 million units sold, durable to provide long-lasting support

    Recommended by doctors and nurses

    Safe and effective � a natural alternative

    Back Pain Is A Problem!

    We average over 9+ hours of sitting each day!

    80% of adults will suffer from back pain in their life

    Back pain is the No. 2 reason for visiting the doctor

    Mom was right: “Sit up straight!”

    How to use

    BackJoy is made small on purpose. It is designed to cradle the space around the two sitting bones at the base of your pelvis and must be smaller than your buttocks to do so.

    Sit on top of it

    Handle goes in front and between your legs

    Pull it tight & cup to fit

    Feel it cup & lift your hips above the seat from below you

    On average, Americans spend about 10 hours a day in front of a computer or other electronic devices and less than 30 minutes a day outdoors. That is a claim made by David Strayer, a professor of psychology at the University of Utah. In his 2017 TED Talk, Strayer explained that all this time spent with technology is making our brains tired.

    Using an electronic device to answer emails, listen to the news and look at Facebook puts a lot of pressure on the front of the brain, which, Strayer explains, is important for critical thinking, problem­solving and decision­making.

    So, it is important to give the brain a rest. And being in nature, Strayer claims, helps get a tired brain away from too much technology. More than 15,000 campers from around the world attended an international camping festival in September. That is when friends and family take time off and escape to nature for several days. They take walks, climb, explore, swim, sleep, eat and play. Camping may be just what a tired brain needs.

    Take Carl for example. He lives in West Virginia and enjoys camping. He says that staying outdoors makes him feel at ease. It also prepares him for the work he must do. Kate Somers is another example who also lives in West Virginia. She says she enjoys camping with her husband and two children. She calls it a "regenerative" experience.

    At the University of Utah, David Strayer has studied both short­term and long­term exposure to nature. He found that spending short amounts of time in nature without technology does calm the brain and helps it to remember better. However ,he found, it is the long­term contact with nature that does the most good. He and his research team found that spending three days in nature without any technology is enough time for the brain to fully relax and reset itself.