Galdwell's book, Blink, is all about first impressions and what he calls “rapid cognition（认知）”. In his own words, “It's a book about the kind of thinking that happens in a short time. When you meet someone for the first time or read the first few sentences of a book, your mind takes about two seconds to jump to a series of conclusions.”

    Galdwell points out that most scientific tradition is based on a great deal more than two seconds' thought though years of scientific study can come from a quick observation. As for rapid cognition, Gladwell realizes some first impressions don't seem to be based on anything. He noticed that Americans support taller candidates（候选人）. In fact, since 1900, only four candidates have beaten men who are taller than themselves. With this in mind Gladwell got in touch with 500 companies in the US and found that almost all of their managers were tall. Gladwell said, “That's weird. There is no connection between height and intelligence or height and decision-making…But for some reason companies chose tall people for leadership roles. I think that's an example of bad rapid cognition.”

    As an example of good rapid cognition, he tells the story of the Emergency Room doctors at Cook County Hospital in Chicago. A few years ago, the hospital changed the way they diagnosed（诊断）heart attacks. Their doctors took no notice of the patient's age, weight and medical history and gave most of their attention to a few really important pieces of information, such as blood pressure and heart rate. And what happened? Cook County is now one of the best places in the United States for diagnosing chest pain.

    Gladwell believes the power of first impressions should be studied further. “The first task of Blink is to show the fact: decisions made very quickly can be as good as decisions made slowly and carefully.”

    Netgear Wi-Fi Range Extender

    Est. Price: $30 | Buy it on Amazon

    Why We Love It: This is a great device to increase your wi-fi signal and get the fastest streaming power. It's also useful to set up separate wi-fi networks for guests.

    External Phone Charger

    Est. Price: $30 | Buy it on B&H Photo

    Why We Love It: Charge your phone anywhere while also extending its battery life. This particular model can also be used with the iPhone, Samsung Galaxy, and iPad. It has a standard USB drive so users can charge e-readers as well.

    Pop Sockets Smartphone Stand

    Est. Price: $10 | Buy it on Amazon

    Why We Love It: It may look silly, but this gripper is actually really useful for taking pictures or watching videos. It also folds down flat when not in use for a more separate look.

    Fitbit

    Est. Price: $401 Buy it on Bed Bath & Beyond

    Why We Love It: Track steps and monitor sleep cycles to improve your health. It also records workouts, and receives call, text, or calendar notifications.

    Construction on Knolly's Tunnel began in 1896, and it was opened on August 13th, 1898 by the man it was named after--Sir Clement C. Knolly, Acting Governor of Trinidad. It linked Rio Claro with Port of Spain. Its architecture is still admired and studied today, and many are amazed that Knolly's Tunnel has stood up to the earth's movement over so many years.

    Much research is being done on the tunnel. At the top of Knolly's Tunnel are cottages covered with leaves, where visitors can sit and enjoy the beauty of nature. Standing at the beginning of Knolly's Tunnel, you can see nothing but the tiny light at the end. The train tracks have been removed and replaced with small stones. Visitors can drive through the tunnel or walk through, but should do so in groups for safety. In the old days, there were no lights, but now there are street lights on the way to the tunnel, though not inside.

    On your way in, you may notice some manholes on the walls of the tunnel. These were there for individuals to step into for safety as the train passed. Knolly's Tunnel can be accessed through Tabaquite and through Mitchell Gap. The road was recently improved, but is better when you enter from Tabaquite, and there are signs on the road directing you to Knolly's Tunnel.

    On the drive to Knolly's Tunnel there are two other cottages where visitors can sit and just enjoy nature. At the site itself, there is nothing to purchase to eat or drink, but in Tabaquite there are several bars, a restaurant, and food outlets. A gas station and a health centre are also close by.

    For those who admire architecture, Knolly's Tunnel is a must-see when visiting Trinidad. For the nature lovers, there is no better place for them to be and for the historians, they can walk or drive through Knolly's Tunnel knowing that many of our ancestors toiled (worked hard) on its structure. So when you visit Trinidad, don't forget to take a look at Knolly's Tunnel!

    I felt excited, curious and nervous at the same time. I was excited because I would be skipping（跳级）two grades. I was curious because I didn't know how high school students were taught.

    However, I was most nervous at the idea that I would be doing high school homework. I had just walked into the class when the bell rang. This wasn't a good start. But the kid in front of me looked very friendly. Luckily, since it was the first day of school, my teacher talked for about half of the period and we just had the rest of the period to start the class. I didn't know what he was saying at first, but when I saw the problems on the paper, I knew what to do. The next day, the kid said hi and I said hi back. We got into a conversation. It seemed that whenever I was talking to my friend, everyone stopped staring at me. Then the class started. It was easy. But I was still uncomfortable because I couldn't look around without meeting others' eyes, so I just kept my eyes on the whiteboard and on my textbook. However, my friend didn't show up the next day, and the eighth graders just kept on staring at me. I didn't know why.

    The next day everything changed. My friend was back to school. I was praised for my homework. Everyone stared at me less. Some started to be a little friendlier towards me. I felt at home at last here. My teachers also seemed pretty nice.

    Are you interested in higher education in the United States? The following advice might help you.

    College, University or Institute

    College and universities offer undergraduate degrees in arts and sciences. And both can help prepare young people to earn a living. But many colleges don't offer graduate studies. Universities are generally bigger, offer more programs and do more research. An institute of technology can offer a wide choice of programs and activities. Seventy-five percent of freshmen go there with a strong interest and involvement in the arts.

    The Application Process

    International admissions officers advise students to apply to at least three schools. You may be able to apply online and pay the application charge with a credit card, or by mail. You should study the websites of schools to find information about how and when to apply, how much it will cost and whether any financial aid is available.

    Get a Student Card

    If you request a visa for the first time, you will have to go to an American embassy or consulate(领事馆). You will need to bring a government form sent to you by your American school that shows you have been accepted. A consular official will also take your picture and your fingerprints. You will also need banking and tax records that show you have enough money to pay for your education.

    Financial Aid

    American schools provide aid, like scholarships, fellowships, to almost half of foreign graduate students, but only ten percent of undergraduates. But grants, which, unlike a loan, does not have to be paid.

    Food Parts You Should Never Throw Away in the Garbage

    Pineapple Core (果心)

    When you carve out the core of t pineapple, don't throw it in the garbage. You can use the pineapple core for all kinds of recipes, and there are tons of vitamins and  minerals hiding within.To use the pineapple core: cut it and add it to fruit salad, put it into smoothies (水果雪泥), cut it into cubes and freeze for law use, or simply add it to water or even tea to improve flavor.

    Kiwi Skln

    If you never thought you could eat kiwi in the way you eat a peach, think again. That skin really is good for you and contains a lot of vitamin C, and in fact, it's also higher hi fiber than the rest of the fruit. Of course, that rough, ugly skin isn't for everyone, so if you don't like it, try adding a whole kiwi to a smoothie to hide the taste of the skin.

    Banana Peel

    Most of us eat the banana without giving the soft peel a second thought. Here's why that's a mistake: banana peel contains tryptophan (色氨酸), which increases "the happiness hormone" to help with mood regulation and nerve system. There are a few creative ways to use the peel. Cook or boil for at least 10 minutes to soften. You can add it to smoothies, stir-fries, or soups. And, for a treat, simply slice and bake a banana with the skin on.

    Water melon Skin and Seeds

    The delicious, red inside makes for a refreshing snack or juice, but you're able to get some powerful nutrients in the skin and seeds as well. Cut out the white part under the green outside and use it in your cooking. It has vitamin C and B6, to keep you healthy. As for the seeds, you can roast them in the oven. Then add them to salads or to nut snacks.