Europe is now the biggest market for organic food in the world, having grown by 25  percent a year over the past 10 years. Denmark's agriculture minister is herself an organic farmer. The UK market for organic food grew by 55 percent in 2000, while the food market as a whole grew by only one percent. Yet only seven percent of British shoppers account for nearly 90 percent of organic sales. However popular the idea of organic farming may be, it is still an interest for only a few people.

    So what makes the idea of organic farming popular? Organic farming means farming with natural materials, rather than with man-made fertilizers or pesticides. Organic farmers rely on many  methods — such as crop rotation (农作物的轮作) and the use of resistant varieties, because they are necessary for organic farmers to compensate for the shortage of man-made chemicals.

    Organic farming is often supposed to be safer than traditional farming for the environment. Yet after a long research on organic farming worldwide for a number of years, science continues to be against this opinion. The House of Commons committee on agriculture publicized that, even with complete research work, it would fail to find any scientific evidence to prove “that any of claims （宣称） made for organic farming is always true”.

    However, the talk about the benefits of organic farming is going on. This is partly because many people depend on their individual farm, the soil, the weather, and so on.

    Some time ago, I discovered a whole lot of antique(古董) shops near my home. So I left home one morning carrying the char that had a broken leg. I didn't think there would be any difficulty in getting it mended. I went into the first shop expecting a friendly reception. I was quite wrong. The man wouldn't even look at my chair.

    The second shop, although slightly more polite, was just the same, and the third and the fourth — so I thought that my approach must be wrong.

    I went into the fifth shop with a plan in my mind. I placed the chair on the floor and said to the shopkeeper, “Would you like to buy a chair?” He looked it over carefully and said, “Yes. How much do you want do it, sir?” “Twenty pounds,” I said. “Ok,” he said, “I'll give you twenty pounds.” “It has a slightly broken leg,” I said. “Yes, I saw that; it's nothing.”

    Everything was going according to the plan and I was getting excited. “What will you do with it?” I asked. “Oh, it will be easy to sell once the repair is done.” “I'll buy it,” I said. “What do you mean? You've just sold it to me.” he said. “Yes, I know but I've changed my mind. I'm sorry. I'll give you twenty-seven pounds for it.” “You must be crazy,” he said. Then, suddenly the penny dropped. “I know what you want. You want me to repair your chair.” “You're right.” I said. “And what would you have done if I had walked in and said, ‘Would you mend this chair for me?'” “I wouldn't have agreed to do it,” he said. “We don't do repairs, not enough in it and too much trouble. But I'll mend this for you, shall we say for five pounds?” He was a very nice man and was greatly amused by the whole thing.

A

    “My wife of 24 years, Marie Roberts, was raised in New York City, worked in the fashion industry, and never got her hands dirty,” said Keith Roberts. “Then, nine years ago, I wanted to move to Florida and reconnect to my country life, but how would I inspire（激发）the same feeling in, well, a city woman? I brought her a two-month-old potbellied pig.”

    At first sight, Marie, then 46, was smitten. So soon she took in another abandoned（遗弃）pig. And thus began Sugarloaf Mountain Farm, her animal shelter in central Florida. With the couple's two children grown up, these animals would now be Marie's babies.

    The Farm now has 300 rescues, from alpacas to donkeys, each with its own story. “A gentleman had a litter of eight pigs, and all but one died,” says Marie. “She weighed one pound and suffered great pain. For three weeks straight, I fed that baby every hour, day and night, seldom sleeping.” Till now, Marie still gets five to ten requests a day to save animals and has to turn most down. “If she can't rescue the animal, she works with that person to find a solution,” Keith says. “She's not only saving animals; above all, she's giving their owners peace of mind.”

    “A woman called from her nursing home,” Marie remembers. “Her pigs would be abandoned if she couldn't find a suitable home. 'I only have a few months, and I need to know that they'll be safe,' she said.” So Marie drove three hours and got them. Soon after, Marie received a note from the woman's daughter. “Dear Marie,” she wrote. “My mom went peacefully, as she went knowing that they are forever loved. Thank you for being Mom's angel.”

    “She is a ball of energy,” Keith adds. “A few times she's gone so far in some situations, like when she locked herself in the chicken coop（鸡舍）. I found her sitting in it with ten chicks nestled in her lap.” That is exactly what you'd expect from a true mother hen.

    Edmund Halley was an English scientist who lived over 200 years ago. He studied the observations of comets(彗星) which other scientists had made. The orbit of one particular comet was a very difficult mathematical problem. He could not figure it out. Neither could other scientists who dealt with such problems.

    However, Halley had a friend named Isaac Newton, who was a brilliant mathematician. Newton thought he had already worked out that problem, but he could not find the papers on which he had done it. He told Halley that the orbit of a comet had the shape of an ellipse.

    Now Halley set to work. He figured out the orbits of some of the comets that had been observed by scientists. He made a surprising discovery. The comets that had appeared in the years 1531, 1607 and 1682 all had the same orbit. Yet their appearances had been 75 to 76 years apart.

    This seemed very strange to Halley. Three different comets followed the same orbit. The more Halley thought about, the more he thought that there had not been three different comets, as people thought. He decided that they had simply seen the same comet three times. The comet had gone away and had come back again.

    It was an astonishing idea! Halley felt certain enough to make a prediction of what would happen in the future. He decided that this comet would appear in the year 1758. There were 53 years to go before Halley's prediction could be tested.

    In 1758 the comet appeared in the sky. Halley did not see it, for he had died some years before. Ever since then that comet had been called Halley's comet, in his honour.

    Every year, 1.5 million kids around the world die as a result of not getting vaccines (疫苗). This is partly because transporting and storing medicines can be a huge challenge in some countries.

    Anurudh Ganesan, 17, knows this firsthand. When he was a baby in India, his grandparents carried him 10 miles to a health clinic in a remote village to receive a vaccine. But by the time they arrived, the vaccines were no longer usable because they had been overheated.

    Vaccines, Anurudh later learned, must be kept cool to stay effective. But refrigerating them requires electricity or ice – precious resources that many developing countries lack.

    Although Anurudh eventually received the vaccine he needed, his experience as a baby and the sad reality that so many other children aren't as lucky motivated him to take action. The high school student invented Vaxxwagon, a portable vaccine-carrying device that generates its own power to keep lifesaving medicines cool as they're delivered to remote areas around the world.

    Anurudh first got his idea for Vaxxwagon in 2014. He read several textbooks to learn everything he could about refrigeration, and then he did research online to learn more about vaccines. Rather than relying on electricity or ice, Anurudh figured out a way to use wheels to power a refrigeration system for about eight hours. The entire rechargeable cooling system can be pulled to areas in need of vaccines by a bicycle, a car, or an animal. Eventually, Anurudh took his design to professors at Johns Hopkins University for advice. Not only did they confirm Vaxxwagon could work, but they offered him funding to help build it.

    Anurudh was rewarded with the 2015 Google Science Fair LEGO Education Builder Award for his invention. Anurudh says his final goal is to start selling Vaxxwagon to relief organizations, so it can be used to help people around the world.

Anurudh, who plans to pursue engineering degree in college, says, “Don't give up on your ideas. But always try to help others with your projects. That's the point of engineering – to help people.”

    A study involving 8, 500 teenagers from all social backgrounds found that most of them are ignorant when it comes to money. The findings, the first in a series of reports from NatWest that has started a five-year research project into teenagers and money, arc particularly worrying as this generation of young people is likely to be burdened with greater debts man any before.

    University tuition fees (学费) are currently capped at £3, 000 annually, but this will be reviewed next year and the Government is under enormous pressure to raise the ceiling.

    In the research, the teenagers were presented with die terms of four different loans but 76 per cent failed to identify the cheapest. The young people also predicted that they would be earning on average £ 31.000 by the age of 25, although the average salary for those aged 22 to 29 is just £ 17, 815. The teenagers expected to be in debt when they finished university or training, although half said that they assumed the debts would be less than £ 10.000. Average debts for graduates are £ 12, 363.

    Stephen Moir, head of community investment at the Royal Bank of Scotland Group which owns NatWest, said. "The more exposed young people are to financial issues, and the younger they become aware of them, the more likely they arc to become responsible, forward-planning adults who manage their finances confidently and effectively."

    Ministers are deeply concerned about the financial pressures on teenagers and young people because of student loans and rising housing costs. They have just introduced new lessons in how to manage debts. Nikki Fairweathcr, aged 15, from St Helens, said that she had benefited from lessons on personal finance, but admitted that she still had a lot to learn about money.