What Theresa Loe is doing proves that a large farm isn't a prerequisite for a modern grow-your-own lifestyle. On a mere 1/10 of an acre in Los Angeles, Loe and her family grow, can (装罐) and preserve much of the food they consume.

    Loe is a master food preserver, gardener and canning expert. She also operates a website, where she shares her tips and recipes, with the goal of demonstrating that everyone has the ability to control what's on their plate.

    Loe initially went to school to become an engineer, but she quickly learned that her enthusiasm was mainly about growing and preparing her own food. “ got into cooking my own food and started growing my own herbs(香草)and foods for that fresh flavor,” she said. Engineer by day, Loe learned cooking at night school. She ultimately purchased a small piece of land with her husband and began growing their own foods.

    “I teach people how to live farm-fresh without a farm,” Loe said. Through her website Loe emphasizes that ''anybody can do this anywhere.” Got an apartment with a balcony (阳台)? Plant some herbs. A window? Perfect spot for growing. Start with herbs, she recommends, because “they're very forgiving.” Just a little of the herbs “can take your regular cooking to a whole new level,” she added. “I think it's a great place to start.” Then? Try growing something from a seed, she said, like a tomato or some tea.

    Canning is a natural extension of the planting she does. With every planted food, Loe noted, there's a moment when it's bursting with its absolute peak flavor. “I try and keep it in a time capsule in a canning jar,” Loe said. “Canning for me is about knowing what's in your food, knowing where it comes from.”

    In addition to being more in touch with the food she's eating, another joy comes from passing this knowledge and this desire for good food to her children: “Influencing them and telling them your opinion on not only being careful what we eat but understanding the bigger picture,” she said, “that if we don't take care of the earth, no one will.”

    Heat has been used to control hair for hundreds of years. But how much is too much? If you have ever opened a very hot oven, you know that heat can burn your eyebrows off your face very quickly. A scientist from Purdue University in Indiana is trying to find a scientific answer on how hot is too hot when it comes to your hair.

    Many women and some men are very particular about their hair. Some people who have naturally curly hair prefer to have it straightened. Others with straight hair want to have curls. Tahira Reid is one of those people. As an African-American woman, she is familiar with the challenges of maintaining (保养)curly hair.

    Tahira Reid and other researchers at Purdue University are studying how heat treatment interacts with different types of hair and how to prevent damage. Amy Marconnet is an assistant professor. She says the team is seeing how heat and temperature relate to their research.

    In a Purdue University's lab, team members designed a hair straightener tool —a flat iron with temperature control. They attached it to a robotic arm that moved over pieces of hair. They controlled the temperature while the device straightened hair.

    What did they find? Their study found that the heat weakens or breaks a protein called keratin, responsible for the hair's shape, and temporarily changes it. But nobody knows exactly what level can make the heat actually cause forever change. Researchers say early results are a bit inconclusive.

    It turns out that everyone's hair is different and there's no exact temperature where hair straightening becomes hair damage. Ms Reid says they will continue their research in the hope of finding what works best without damaging hair.

    Procter & Gamble (P&G), one of the world's biggest marketers, has announced a change in the way it buys advertising on Facebook. It has started cutting its spend on highly targeted ads and increasing its spend on ads that address much larger numbers of the potential audiences for its brands, which include Tide, Pampers and Gillette. Explaining this change of emphasis, P&G's global brand building officer, Marc Pritchard, said, "We targeted too much, and went too narrow."

    Facebook's astonishing income growth comes, in part, from its ability to deliver micro-targeted audiences (推送精准目标受众) to advertisers, and P&G in fact admits that it has wasted millions of dollars in the misguided pursuit of effectiveness.

    Facebook used to be irresistible to advertisers. It presents advertisers this question: Instead of sending your message to millions in a television ad, why not use data to reach only those you need to reach? But as many people may have noticed, making perfectly targeted ads appears to be much harder than it sounds. Most digital ads are easily ignored. Information about consumers is not the same as insight into human beings.

    The more fundamental problem with micro-targeting is that for big brands, advertising has never really been about messages—even brand owners have never quite realized it. It is about the creation of shared memories, triggered at the point of purchase. Think about some of the great brands: Nike, Apple, and yes, Pampers. If you buy them, it is because you know millions of others do, and because they seem to stand for something that, far from being unique to you, is common to all of us: achievement, creativity, and nurturing. The broader these brands go, the better they do.

    When a consumer reaches for something on the shelf, they usually reach for the familiar. To achieve that status, a brand needs to have done something that lots of people regularly see, notice and enjoy. What seemed to be the wastefulness of TV was in fact its secret sauce. By reaching large numbers of people at the same time, TV ads had the power to turn brands into cultural icons, which took up consumers' minds.

    In its conversations with advertisers, Facebook now talks less about targeting, preferring to emphasize the large number of consumers that it can help brands to reach. It is investing in video functions and is encouraging its clients to make short films. After years of telling clients TV is wasteful, it is now doing a good job of imitating it.

    I.M. Pei, the Chinese-American, who was regarded as one of the last great modernist architects, has died at the age of 102.

    Although he worked mostly in the United States, Pei will always be remembered for a European project: His redevelopment of the Louvre Museum in Paris in the 1980s. He gave us the glass and metal pyramid in the main courtyard, along with three smaller pyramids and a vast subterranean (地下的) addition to the museum entrance.

    Pei was the first foreign architect to work on the Louvre in its long history, and initially his designs were fiercely opposed. But in the end, the French—and everyone else—were won over. Winning the fifth Pritzker Architecture Prize in 1983, he was thought as giving the 20th century "some of its most beautiful inside spaces and outside forms … His talent and skill in the use of materials approach the level of poetry."

    After studying architecture at the Massachusetts Institute of Technology and Harvard, Pei set up his own architectural practice in New York in 1955.

    Designing the John F. Kennedy Presidential Library & Museum in 1964 established him as a name. His East Building of the National Gallery of Art in Washington in 1978 changed people's ideas of a museum. The site was an odd trapezoid (梯形) shape. Pei's solution was to cut it in two. The resulting building was dramatic, light and elegant—one of the first crowd-pleasing cathedrals of modern art.

    Though known as a modernist, and notable for his forms based on arrangements of simple geometric (几何的) shapes, he once urged Chinese architects to look more to their architectural tradition rather than designing in a western style.

    In person, I.M. Pei was good-humored, charming and unusually modest. His working process was evolutionary, but innovation (创新) was never an intended goal.

    "Stylistic originality is not my purpose," he said. "I want to find the originality in the time, the place and the problem."

    The market for products designed specifically for older adults could reach $30 billion by next year, and startups (初创公司) want in on the action. What they sometimes lack is feedback from the people who they hope will use their products. So Brookdale, the country's largest owner of retirement communication, has been inviting a few select entrepreneurs just to move in for a few days, show off their products and hear what the residents have to say.

    That's what brought Dayle Rodriguez, 28, all the way from England to the dining room of Brookdale South Bay in Torrance, California. Rodriguez is the community and marketing manager for a company called Sentab. The startup's product, Sentab TV, enables older adults who may not be comfortable with computers to access email, video chat and social media using just their televisions and a remote control.

    "It's nothing new, it's nothing too complicated and it's natural because lots of people have TV remotes." says Rodriguez.

    But none of that is the topic of conversation in the Brookdale dining room. Instead, Rodriguez solicits residents' advice on what he should get on his cheeseburger and how he should spend the afternoon. Playing cards was on the agenda, as well as learning to play mahjong(麻将).

    Rodriguez says it's important that residents here don't feel like he's selling them something. "I've had more feedback in a passive approach." he says. "Playing pool, playing cards, having dinner, having lunch, all work better than going through a survey of questions. When they get to know me and to trust me, knowing for sure I'm not selling them something—there'll be more honest feedback from them."

    Rodriguez is just the seventh entrepreneur to move into one of Brookdale's 1,100 senior living communities. Other new products in the program have included a kind of full-body blow dryer and specially designed clothing that allows people with disabilities to dress and undress themselves.

    "First and foremost, the residents love it." says Smith. "It also provides Brookdale the opportunity to learn about and experience new technologies quickly and inexpensively and to make sure that we understand what residents want and need."

    Mary Lou Busch, 93, agreed to try the Sentab system. She tells Rodriguez that it might be good for someone, but not for her.

    "I have the computer and FaceTime, which I talk with my family on." she explains. She also has an iPad and a smart phone. "So I do pretty much everything I need to do."

    Rodriguez takes it pretty well.

    "I'm not going to lie to you, I would've liked a more positive response." he says. But "if people don't need it or want it, it's up to us to change, adapt it or make it more useful."

    To be fair, if Rodriguez had wanted feedback from some more technophobic (害怕技术的) seniors, he might have ended up in the wrong Brookdale community. This one is located in the heart of Southern California's aerospace corridor. Many residents have backgrounds in engineering, business and academic circles.

    But Rodriguez says he's still learning something important by moving into this Brookdale community: "People are more tech-skilled than we thought."

    And besides, where else would he learn to play mahjong?

    On my first day of high school, I asked an eleventh grader where my class was. And he told me it was "on the fourth floor, next to the pool." I found out five minutes later that we don't even have a fourth floor and there's no pool either! Besides that, I didn't have any trouble with the older kid.

    I think the biggest difference between middle and high school is the homework load (工作量) and size of the school. I went from maybe fifteen minutes of homework a night to several hours, so I had to learn how to make full use of time! Our class size is around 550, but joining in clubs, sports, music, and other activities at school makes it easier to get to know people in every grade.

    The best advice I can give about the years you spend in high school is to learn things for yourself, not just to get a good grade. There have been so many tests that I've prepared for the night before, gotten an A, and not remembered anything later. I've changed that this year, and I enjoy school so much more. Don't take easy classes just to have a simple year. If you have a choice between chemistry and sports, the first will prove to be a lot more useful!

    While drinking and smoking might be present in some middle schools, they're also around in high school. I have a lot of friends who promised they'd never drink or smoke, but are now partying every weekend. If you have "fun" and spend your nights wasted instead of studying, you will regret it when you're applying for (申请) college. The "friends" who say you're a loser for not partying are really not your friends at all. It's hard to see your closest friends grow apart and go in different directions, but don't follow their footsteps. Create your own path in life and make your own decisions.