Some people love eating food right after it is cooked. I prefer food just taken out from the freezer. Fruit, candies, nuts, chocolate, cake with buttercream frosting(糖霜), even peas, all of them taste delicious when frozen. In fact, I often eat them that way.

    I was a kid when I picked up the habit. In my family, lots of things were thrown into the freezer — finally, two freezers — to prevent them from going bad. Among them were some of the candies my sisters and I had collected on Halloween.

    If we eat when they are still warm, we'll find ourselves taking the cookies more than we should. It's better if we can put them into the freezer and wait. That way we'll eat less and enjoy them more because they are hard and chewing becomes a slower, more patient effort. That's the point about frozen buttercream frosting. Put it in your mouth at room temperature, and it's gone very quickly. But when it's frozen, you can enjoy the taste much longer as it melts(融化) in your mouth.

    The freezer treats a lot of fruit kindly. Take frozen grapes for example, I keep a bowl of grapes in my freezer. They become a little icy, and somehow their sweetness is improved. They are perfect and healthy dessert(点心). This is the same with oranges, apples, bananas…You might think bananas would get super­hard when frozen. Wrong! They become cool, creamy and sweet. If you have wisely covered some or all of the bananas with melted chocolate before putting them into the freeze, they will have a double taste.

    As long as you aren't eating anything that truly has to be hot, go ahead and experiment.

    When I was in the fifth grade and Mr. Gardner asked a question, my hand would often shoot up in enthusiasm. After giving me a few opportunities, he would try to give other students a chance. My hand, though, would remain in the air, and after some time, I'd start waving it around. Then, there was the time I entered drumming classes. But all we were allowed to do in the first class was practice one beat over and over again. I never went back.

    I would have done terribly in the Stanford Marshmallow(果浆软糖) Experiment. In this classic study, researchers gave children a choice between one marshmallow right away and two later. The results showed that those who could wait 15 minutes ended up scoring 210 points higher on the SAT, an examination that American high school students take before they go to college.

    So clearly, delaying(延迟的) gratification or bearing up under pain have their benefits. It needs patience, which keeps us from being stuck to ideas formed previously, and helps us let go of our strong desire for consequences. We come to accept that we don't always or immediately know what is best, and learn to recognize that our reality is in constant changes. Patience improves our understanding of deeper truths and helps us expand our views.

    The journey of patience is rooted in knowing that our present reality will finally give way to changes. But changes won't always happen when we think they should, and patience with ourselves comes from accepting that there are things we can control and things we can't. And though we must make great efforts to keep pushing the boundaries of our awareness and to improve our ability to rest in comfort in the present moment, how fast we develop isn't up to us.

    That same fifth grader who couldn't wait to speak out answers now sees the value of meeting questions with a heart of patience.

    Alex Elman runs a big business—something hard to imagine after she lost her sight in her twenties. But Elman says that losing her sight helped her focus on finding success.

    Elman's father planted a hillside vineyard(葡萄园)in western Massachusetts in 1981. It's where Elman spent the darkest period of her life. When she was 27 years old, she went blind as a result of diabetes(糖尿病) 17 years ago. She recalled，“I hid in my home. I hid in the place，to me, that was the safest place in the world.”

    However, she found a new way forward.

    Elman is the founder of Alex Elman Wines, a growing competitor of organic wines from all around the world: Chianti from Italy, Torrontes from Argentina.

    Elman's isn't solitary in her work. Instead, she has a good assistant, a guide dog named Hanley. Hanley is something of a professional wine taster and travels to all of the wine factories that Elman runs, from South America to Europe.

    At first, Elman wouldn't accept a guide dog. Now it's hard to imagine her life, or her business, without him. She said, "When someone tells me something is organic and I don't really believe it because I taste something funny on it, m put it in front of his face and if he likes the wine, he'll actually go in and sniff it. If if s not right, he'll turn his head away. That's how we know whether the soil is actually organic.”

    Elman believes the loss of her sight was a gift from God. She said, “It allowed me to pay attention to what I thought was important. Therefore, adapt to a situation, and you'll be all right. Because you can't change it anyway, right?”

    If you could have one superpower, what would it be?

    Dreaming about whether you would want to read minds, see through walls, or have superhuman strength may sound silly, but it actually gets to the heart of what really matters in your life.

    Every day in our work, we are inspired by the people we meet doing extraordinary things to improve the world.

    They have a different kind of superpower that all of us possess: the power to make a difference in the lives of others.

    We're not saying that everyone needs to contribute their lives to the poor. Your lives are busy enough doing homework, playing sports, making friends, seeking after your dreams. But we do think that you can live a more powerful life when you devote some of your time and energy to something much larger than yourself. Find an issue you are interested in and learn more. Volunteer or, if you can, contribute a little money to a cause. Whatever you do, don't be a bystander. Get involved. You may have the opportunity to make your biggest difference when you're older. But why not start now?

    Our own experience working together on health, development, and energy the last twenty years has been one of the most rewarding parts of our lives. It has changed who we are and continues to fuel our optimism about how much the lives of the poorest people will improve in the years ahead.

The Museum of Science and Industry

    The Manchester Museum of Science and Industry will give us a more wonderful interpretation of the museum. The 2.8 hectare museum was rebuilt on the site of a huge Victorian warehouse and the world's oldest passenger train station. The number and type of collections are ranked first, and in the power exhibition hall, steam engines used during the Industrial Revolution can still be seen. The display of the railway here is rich and vivid in content. Understanding the history of the Industrial Revolution, the Manchester Museum of Science and Industry is a good choice.

    Power is the central theme of the museum, whether it is a bicycle or a steam engine, not to mention an old car. The history of mankind, as this museum shows, has been constantly running. All human inventions can't be separated from this idea. Life is also about exercise. All the exhibits in the museum are alive. The workers oil and wipe every day. Finally, steam is imported into the machinery to make them run as usual as they did a hundred years ago. Time is also reversed.

    In the power exhibition hall, the steam engine that had been used during the Industrial Revolution was still roaring, and the influence was not reduced. If you want to understand the Industrial Revolution and the role of Manchester in it, you must come and visit it, and you will find answers from the many wonderful exhibitions here.

    The Manchester Museum of Science and Industry completely reproduced the British Industrial Revolution, and ensured that the machines of its scientific and technological inventions operated daily, so that visitors and school children could experience the Industrial Revolution. Therefore, the museum has become an outstanding model for preserving industrial heritage.

    Manchester was known as Cotton Capital, Northern Capital, Second City, and Warehouse City for the Industrial Revolution. The Manchester Museum of Science and Industry is located in the center of Manchester City. It records the cradle (摇篮) of the Industrial Revolution with historical details. Manchester City's history, textiles, energy, communications, aviation, transportation and other industries have risen and fallen with the development of science and technology.

    More information: visit https://www.msichicago.org/

    Address: 150 Deansgate Manchester M3 3EH

    Main traffic: Bus 255 to Manchester City Centre

    Open daily: from 10:00 to 17:00

    Tour tickets: free

Any schoolchild knows that a whale breathes through its blowhole. Fewer know that a blowhole is a nostril （鼻孔） slightly changed by evolution into a form more useful for a mammal that spends its life at sea. And only a dedicated expert would know that while toothed whales, such as sperm whales, have one hole, baleen （鲸须） whales, such as humpback and Rice whales, have two. 

Even among the baleen whales, the placing of those nostrils differs. In some species they are close together. In others, they are much further apart. In a paper published in Biology Letters Conor Ryan, a marine biologist at the Scottish Association for Marine Science, suggests why that might be. Having two nostrils, he argues, helps whales smell in stereo （立体空间）. 

Many types of baleen whales eat tiny animals known as zooplankton （浮游动物）， which they catch by filtering （过滤） them from seawater using the sheets of fibrous baleen that have replaced teeth in their mouths. But to eat something you first have to find it. Toothed whales do not hunt by scent. In fact, the olfactory bulb-the part of the brain that processes smell-is absent in such creatures. But baleen whales still have olfactory bulbs, which suggests smell remains important. And scent can indeed give zooplankton away. Zooplankton like to eat other tiny creatures called phytoplankton （浮游植物）. When these are under attack, they release a special gas called dimethyl sulphide, which in turn attracts baleen whales. 

Most animals have stereoscopic senses. Having two eyes, for instance, allows an animal to compare the images from each in order to perceive depth. Having two ears lets them locate the direction from which a sound is coming. Dr Ryan theorized that paired blowholes might bring baleen whales the same sorts of benefits. 

The farther apart the sensory organs are, the more information can be extracted by the animal that bears them. The researchers used drones to photograph the nostrils of 143 whales belonging to 14 different species. Sure enough, baleen whales that often eat zooplankton, such as the North Atlantic right whale, have nostrils that are farther apart than do those, such as humpback whales, that eat zooplankton occasionally. Besides allowing them to breathe, it seems that some whales use their blowholes to determine in which direction dinner lies.