At the beginning of the century there was a big farm called Hollywood Ranch. It was near Los Angeles in California. A few years later Hollywood was one of the famous places of the world. From 1910s to the 1950s Hollywood was the film center of the world. Every family knew the names of its film stars Charlie Chaplin, Grete Garbo, Bergman and hundreds more.

    The reason why people went to Hollywood to make films was the sun. At first people made films in New York on the east coast of the United States. But then they heard about Los Angeles where there are 350 days of sun every year. As they made all the films by sunlight, the west coast was a much better place to work.

    Also near Hollywood you can find mountains and sea and desert. They did not have to travel far to make any kind of film.

    When TV became popular in the 1960s, Hollywood started making films for television. Then in 1970s they discovered people still went to cinema to see big expensive films. After twenty years they are still making films in Hollywood and people watch them all over the world.

    So many of us hold on to little resentments that may have come from an argument, a misunderstanding, or some other painful event. Stubbornly, we wait for someone else to reach out to us—believing this is the only way we can forgive or rekindle a friendship or family relationship.

    An acquaintance of mine, whose health isn't very good, recently told me that she hadn't spoken to her son in almost three years. She said that she and her son had had a disagreement about his wife and that she wouldn't speak to him again unless he called first. When I suggested that she be the one to reach out, she resisted initially and said, "I can't do that. He's the one who should apologize." She was literally willing to die before reaching out to her only son. After a little gentle encouragement, however, she did decide to be the first one to reach out. To her amazement, her son was grateful for her willingness to call and offered an apology of his own. As is usually the case when someone takes the chance and reaches out, everyone wins.

    Whenever we hold on to our anger, we turn "small stuff" into really "big stuff" in our minds. We start to believe that our positions are more important than our happiness. They are not. If you want to be a more peaceful person you must understand that being right is almost never more important than allowing yourself to be happy. The way to be happy is to let go, and reach out. Let other people be right. This doesn't mean that you're wrong. Everything will be fine. You'll experience the peace of letting go, as well as the joy of letting others be right.

    You'll also notice that, as you reach out and let others be "right," they will become less defensive and more loving toward you. They might even reach back. But if for some reason they don't, that's okay too. You'll have the inner satisfaction of knowing that you have done your part to create a more loving world, and certainly you'll be more peaceful yourself.

    Katherine Johnson, a brilliant mathematician at NASA (美国宇航局), began working on the space program in the 1950s. Many of NASA's first missions were made possible by her amazing calculations (计算).

    As a child, she loved to count. Her father placed great importance on education and insisted all four of his children go to college, working overtime to pay for it. Johnson said this atmosphere was important to her success. "I was always around people who were learning something. I liked to learn." She said.

    Johnson graduated from high school at 14 and college at 18. In 1953, Johnson started to work for NASA, doing the math that powered engineers' work. Then, because of her outstanding talent, she was moved to work on rockets with an all-male flight research team. As for Johnson, her calculations contributed to many of NASA's most important projects. In 1961, with the help of Johnson's work, Alan Shepherd became the first American to go into space. Johnson also lent her unbelievable talent to the success of the Apollo 13, which had trouble getting back to earth. She worked hard to calculate a safe path back to Earth for the astronauts.

    Johnson retired in 1986, but her huge contribution to the space program has only been reaching the public attention for the past few years. Part of that is because, as she is the first to admit, science is based on collaboration. "I never took any credit because we always worked as a team, it was never just one person," she said in a 2010 interview.

    Earlier this year, NASA named a new data center after her. She was also given a Silver Snoopy award, which recognizes "outstanding performance, contributing to flight safety and mission success."

    Plants are living things. So can they feel pain? Plants don't feel pain the same way animals and people do, says Anke Steppuhn. She is a scientist at the Free University of Berlin in Germany. "What we define as pain usually has to do with a nervous system," Steppuhn explains. When you put your hand too close to a hot stove, nerve cells send a signal to your brain. Your brain decodes (解码) that signal as pain. This causes you to pull your hand away before any serious damage is done.

    Plants don't have nerves or brains, so they can't feel pain like we do. "But plants do recognize when something is hurting them," Steppuhn says. Because they are rooted to the ground, they can't escape a dangerous situation. So they need other ways of fighting back.

    The biggest threat to a plant's life is getting eaten. Some plants grow sharp little hairs. Other plants produce bad-tasting or even harmful chemicals. These force an attacker to abandon its meal. A plant called bittersweet nightshade does something even smarter, Steppuhn found. When a slug (蛞蝓) chews holes in a nightshade' s leaf, liquid begins dripping (滴) around the wound. It is almost as if the plant were bleeding. The liquid is sugary nectar (花蜜), and it happens to be a favorite food of ants. In their effort to collect the nectar, the ants swarm (蜂拥而至) all over the injured plant. They will attack anything that stands in their way. That includes the slug that damaged the plant in the first place. It's a very clever trick. Whenever a slug attacks a plant, the plant calls an army of ants to kill the slug.

    Nectar isn't the only way plants attract bodyguards. They also release certain chemicals into the air when they are being eaten. People usually can't detect these smells. But wasps (黄蜂) can. When a wasp detects this cry for help, it races to the scene of the crime. If it finds the right kind of insect chewing down on the plant, the wasp will interrupt the attacker's meal. It will do this by laying eggs inside the insect's body!

    Compulsive（强迫的）shoppers may have a new psychological excuse to blame for their wild shopping. Psychologists at the University of Canterbury in New Zealand are studying the "shop-till-you-drop" habit as a behavioral disorder similar to compulsive eating. Compulsive shoppers frequently buy more than they can afford or more than they need, and it causes them distress.

    "It becomes a problem when you are out of control," psychology lecturer Neville Blampied said. "When you are feeling bad and blue, what do you do? Some people eat chocolate cake and ice cream. Some people take the credit card and go out to the shop." Bank managers understand the problem because they have to deal with people who have to be persuaded to stop using their cards drawing money.

    Compulsive shopping was first discovered in 1915, although it was then known as oniomania. Few studies have been done on the problem.

    An advertisement in a Christchurch paper, calling for people to take part in an experimental treatment program designed by Mr Wilson, attracted 10 replies. But the problem, said Mr Wilson, is"clearly not rare". He thinks that compulsive shopping should be treated with drugs." As psychologists we are interested in non-drug treatments for behavioral difficulties," Mr Wilson said.

    Compulsive eaters or shoppers get a kick from their habit. "Both activities provide an immediate kind of kick and you feel a bit better," he said. "You have long-term problems, but human beings are extremely good at not seeing long-term problems and are very sensitive to short-term benefits," he said.

    The aim of the treatment was to help people find better ways of managing their emotions. The program, consisting of 10 one-hour weekly lessons and two follow-up treatments, is loosely based on teaching stress management.

    "You often have to start to get people to correctly recognize their emotions. Not being able to know what you really feel weakens your ability to solve the problems connected with what's making you feel that way," Mr Wilson said.

    A company in San Francisco, California, has found a way to turn used plastic bottles into women's shoes.

    Every day, millions of Americans drink water and other liquids from plastic bottles. More than 60 million of them are thrown away each day. Many of the plastic bottles end up in landfills or are burned with other waste products.

    A San Francisco start-up company called Rothy's, however, turns this plastic waste into environmentally friendly shoes. Roth Martin is the company's co-founder. He explains how they turn plastic into soft material for women's feet. They take the plastic, clean it, and break it down into small pieces. Then they press them through a device that makes soft fibers. Those fibers are then combined together. This is done by a 3D machine. It is designed to reduce waste while making the shoes. The knitted stuff and the inner part of the shoe are then attached to the shoe's outer part, called the sole (鞋底). This outer sole is also made from environmentally friendly material: responsibly sourced no-carbon rubber.

    Rothy's shoes are sold online. They are flat shoes, with either a rounded or pointed toe. They come in different colors and designs. They cost either $ 125 or $ 145 per pair, depending on the design. After American actress Gwyneth Paltrow discovered them last year, the demand for the shoes grew. Martin says there is no shortage of material to fill that demand. "We're not going to run out of water bottles any time soon. So we have a limitless supply of material, and I think that is a good sign for our future." When the environmentally friendly shoes wear out, customers can return them at no cost to a company that uses the recycled materials to make other products.

    For now, the shoes are only available to be shipped in the United States. However, the company says it will add international shipping in the near future.