A new collection of photos brings an unsuccessful Antarctic voyage back to life.

Frank Hurley's pictures would be outstanding—undoubtedly first-rate photo journalism—if they had been made last week. In fact, they were shot from 1914 through 1916, most of them after a disastrous shipwreck(海难), by a cameraman who had no reasonable expectation of survival. Many of the images were stored in an ice chest, under freezing water, in the damaged wooden ship.

    The ship was the Endurance, a small, tight, Norwegian-built three-master that was intended to take Sir Ernest Shackleton and a small crew of seamen and scientists, 27 men in all, to the southernmost shore of Antarctica's Weddell Sea. From that point Shackleton wanted to force a passage by dog sled(雪橇) across the continent. The journey was intended to achieve more than what Captain Robert Falcon Scott had done. Captain Scott had reached the South Pole early in 1912 but had died with his four companions on the march back.

    As writer Caroline Alexander makes clear in her forceful and well-researched story The Endurance, adventuring was even then a thoroughly commercial effort. Scott's last journey, completed as he lay in a tent dying of cold and hunger, caught the world's imagination, and a film made in his honor drew crowds. Shackleton, a onetime British merchant-navy officer who had got to within 100 miles of the South Pole in 1908, started a business before his 1914 voyage to make money from movie and still photography. Frank Hurley, a confident and gifted Australian photographer who knew the Antarctic, was hired to make the images, most of which have never before been published.

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I'm part of the Roots & Shoots program founded by Dr. Jane Goodall. The program is intended to make and promote positive changes in the world. As Dr. Goodall says, "What you do makes a difference, and you have to decide what kind of difference you want to make."

    In Bulgaria, where I live, homeless dogs are everywhere. Many people here turn a blind eye to them. But I cannot ignore the life of a street dog whenever I see one wandering in the street, looking for something to eat. That's why I'm no longer a food waster. When I see wasted food, I always think of a hungry dog climbing to garbage bins, searching for food that people have thrown there. When eating in a restaurant, I'm not afraid to take leftover food to feed stray cats or dogs.

    A week ago, I saw a homeless dog around the garbage bins. Immediately I knelt down, spoke to her softly and ran my hands over her. I could see that she had had puppies. I couldn't imagine how she could have been able to care for them. Hours earlier, I'd bagged up a plate of leftover fish. As I unwrapped it, she wagged her tail and sniffed at it. She ate all the fish in no time.

    It's sad, isn't it? I can't understand why many of us waste so much and think little of it. These homeless animals have taught me that food is precious. Even when I don't have leftovers with me, I'll take the time to get something from the grocery store to feed them.

    I know my power is small, so I hope that next time you see wasted food, do turn it into worthy food. You have the power to save a life!

    Our library offers different types of studying places and provides a good studying environment.

Zones

    The library is divided into different zones. The upper floor is a quiet zone with over a thousand places for silent reading, and places where you can sit and work with your own computer. The reading places consist mostly of tables and chairs. The ground floor is the zone where you can talk. Here you can find sofas and armchairs for group work.

Computers

    You can use your own computer to connect to the wi-fi specially prepared for notebook computers; your can also use library computers, which contain the most commonly used applications, such as Microsoft Office. They are situated in the area known as the Experimental Field on the ground floor.

Group-study places

    If you want to discuss freely without disturbing others, you can book a study room or sit at a table on the ground floor. Some study rooms are for 2-3 people and others can hold up to 6-8 people. All rooms are marked on the library maps.

    There are 40 group-study rooms that must be booked via the website. To book, you need an active University account and a valid University card. You can use a room three hours per day, nine hours at most per week.

Storage of Study Material

    The library has lockers for students to store course literature. When you have obtained at least 40 credits(学分), you may rent a locker and pay 400 SEK for a year's rental period.

Rules to be Followed

    Mobile phone conversations are not permitted anywhere in the library. Keep your phone on silent as if you were in a lecture and exit the library if you need to receive calls.

    Please note that food and fruit are forbidden in the library, but you are allowed to have drinks and sweets with you.

    There is virtue in working standing up. It sounds like a fashion. But it does have a basis in science.

    That, by itself, may not be surprising. Health ministries ask people for decades to do more exercise. What is surprising is that long periods of inactivity are bad regardless of how much time you also spend on officially approved high-impact stuff like pounding treadmills(跑步机) in the gym. What you need instead, the latest research suggests, is constant low-level activity. This can be so low-level that you might not think of it as activity at all. Even just standing up counts, for it invokes muscles that sitting does not.

Researchers in this field trace the history of the idea that standing up is good for you back to 1953, when a study published in The Lancet found that bus conductors, who spent their days standing, had a risk of heart attack half that of bus drivers, who spent their shifts on their backsides. But as the health benefits of exercise and vigorous(强度大的) physical activity began to become clear in the 1970s, says David Dunstan, a researcher at the Baker IDI Heart & Diabetes Institute in Melbourne, Australia, interest in low-intensity activity — like walking and standing — became weaker.

    Over the past few years, however, interest has been excited again. A series of studies, none big enough to provide convincing evidence, but all pointing in the same direction, persuaded Emma Wilmot of the University of Leicester, in Britain, to carry out a meta-analysis. This is a technique that combines diverse studies in a statistically meaningful way. Dr Wilmot combined 18 of them, covering almost 800,000 people and concluded that those individuals who are the least active in their normal daily lives are twice as likely to develop diabetes(糖尿病) as those who are the most active. She also found that the immobile are twice as likely to die from a heart attack and two-and-a-half times as likely to suffer cardiovascular disease as the most mobile. Crucially, all this seemed to be independent of the amount of vigorous, gym-style exercise that volunteers did.

    I recently came in contact with celebrity magazines. My family isn't one to give money for pictures of skinny, drunk celebrities with paragraphs about their relationships and shopping cart times. Thus, I was excited to finally get a chance to read about other people's attractive yet troubled lives.

    Right away I noticed how each magazine seemed to be a copy of the other. They had headlines and pictures that were almost the same. Still, the pictures of perfectly constructed faces with cute designers outfits going on with their daily lives made me read on.

Wait, celebrities taking their dogs for walk? Spending an afternoon at a park? All of these things seemed so ordinary—things my own family and I do together often. I suddenly realized how unextraordinary the people in these magazines were. They are simply normal people who happen to have a cool job and much money. For some reason, pictures of them doing things like buying milk at the store appeal to millions of readers. Then, when these regular people mess up, their mistakes is painted onto hundreds of newspapers and internet sites.

    What if every time we made a mistake, it was made public? Have you ever failed a test? Imagine seeing pictures of you on the front of a newspaper with headlines like, "Regular Schooling Isn't Enough". You'd be embarrassed. Now, I'm not necessarily taking the celebrity's side. I'm more realizing the fact that these people we were crazy about are just ordinary human beings with many photographs following them around. Role models? I'd think not. Personally, I'd rather look up to people in any community who have accomplished a lot instead of an ordinary person walking his dog in Berverly Hills.

A clever technologist took steamboat inventions and turned them into the first commercial steamboat service.

Although Robert Fulton did not invent the steamboat, as is commonly believed, he played an important role in making steamboat travel a reality. He was born in Pennsylvania in 1765. As a young man, he set out to make his name as a portrait painter. His career took him to Europe and into the orbit of people with the power to support him politically and financially.

Fulton entered London society after he painted Benjamin Franklin's portrait. While abroad, Fulton left the arts for a career in shipbuilding. He was interested in the recently-invented steam engine, and thought it could be used to power ships. Fulton's vision was not original; many others had entered the field, and the unfortunate inventor John Fitch had built a working steamship already. But like Henry Ford, Fulton's talent lay not in the invention but in the product's application in the marketplace.

Fulton didn't focus entirely on the steamboat. In 1804, he tested the first submarine successfully, which he had built for the British Royal Navy. His invention would make him a celebrity upon his return to the United States two years later. Fulton's partner Robert Livingston obtained an exclusive license for steamboat services on New York's Hudson River. It was time for Fulton to deliver.

To build an efficient, reliable steamboat, Fulton used a special English steam engine. The ship's bottom was flat and its stern was square. The steamboat Clermont made its debut (首次亮相) on August 17, 1807, steaming up the river from New York to Albany, and it soon entered commercial services. The hilly terrain of New York made water transport faster than land transport, and Fulton's boat — formerly known as the "North River Steamboat" — was a hit. Within five years, Fulton would be running services on six major rivers plus the Chesapeake Bay, and bring in great profits.