In the depths of the French Guianese rainforest, there still remain unusual groups of indigenous(土著的) people. Surprisingly, these people live largely by their own laws and their own social customs. And yet, people in this area are in fact French citizens because it has been a colony(殖民地) of the French Republic since 1946. In theory, they should live by the French law is often ignored or unknown, thus making them into an interesting area of “lawlessness” in the world.

        The lives ofthese people have finally been recorded thanks to the effects of a Frenchman form Paris called Gin. Gin spent five months in early 2015 exploring the most remote corners of this area, which sits on the edge of the Amazon rainforest, with half its population of only 250,000 living in its capital, Cayenne.

“I have a special love for the French Guianese people. I have worked there on and off for almost ten years,” says Gin. “I've been able to keep firm friendships with them. Thus I have been allowed to gain access to their living environment. I don't see it as a lawless land. But rather I see it as an area of freedom.”

“I wantedto show the audience a photographic record touching upon the uncivilized life,” continues Gin. “I prefer to work in black and white, which allows me to show different specific worlds more clearly.”

His black-and-white pictures present a world almost lost in time. These pictures show people seemingly pushed into a world that they were unprepared for. These local citizens now have to balance their traditional self-supporting hunting lifestyle with the lifestyle offered by the modern French Republic, which brings with it not only necessary state welfare, but also alcoholism, betrayal and even suicide.

    We're surrounded by chemistry in everyday life. Sometimes it is easy to see, like when your science teacher conducts a big experiment in class. At other times, it can be extremely hard to see everyday chemistry at work, but nearly everything you touch or use has some element of chemistry in it.

    Something as simple as toothpaste contains at least three chemicals, if not more. It is the mixture of them and its chemical reaction that keeps your teeth clean. Other things you use every day are created by chemistry, such as hair products, shampoo and soap. Adding detergent (洗涤剂) to water involves chemistry. Without chemistry, we would never have realized that we need soap to get the oil out of clothes or skin.

    Chemistry not only helps us make products for use, but it also helps us understand the world around us. Chemistry helps us understand what the ozone layer (臭氧层) is and how it protects us. Chemistry also gives us sunscreen to protect us from the sun. Thanks to chemistry, we know bleach (漂白剂) can't be mixed with vinegar, because it can produce poisonous gas. Without chemistry, we wouldn't have had fireworks displays on important days like the Spring Festival.

    Chemistry plays a big role in food preparation. Cooking food causes it to go through a chemical change. That is why cooked food often tastes different from raw (生的) food. Baking is a great example of chemistry. Too much or too little of any ingredient makes a difference to the result of baking, for example, the dough (面团) won't rise or the cake will be flat.

    Chemistry isn't something that just lives in a lab; it's something that you come across hundreds of times every day. If you know how chemistry works, you will get a greater comprehension of the science behind some of the simplest looking things.

    Guide to Stockholm University Library

    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, you 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.

    China's government has been trying all measures to reduce pollution in the past few years. Now people can enjoy a fresh environment everywhere. The following two graphs are adopted from the column of “City Information” on the webpage of Beijing Review.

Graph 1: Olympic Cities Air Quality Report

Graph 2: Chinese National Standard

Notes:

    API stands for Air Pollution Index(指数).

    Particulate matter (PM10) is a major component of air pollution that threatens both our health and our environment. It consists of very small liquid and solid particles floating in the air.

    Sulfur dioxide(SO₂) acts as an acid. Inhalation(吸入) results in labored breathing, coughing, or a sore throat and may cause permanent lung damage.

    Qingming Festival, which falls on April 5 this year, is known as Tomb-Sweeping Day. The festival always appears about the beginning of April when spring has come. Not only is it a period for commemorating the dead, it is also a time for people to go out and enjoy nature.Where is the best place to go during the festival? Here are 3 popular tourist attractions.

    Jiuzhaigou Valley Scenic and Historic Interest Area

    In the spring, the sight of the Jiuzhaigou Valley is refreshing and touching. The ice and snow begin to melt, water and streams begin to flow and mountain flowers blossom. The air is filled with the fragrance of spring. The soft and lazy spring sun kisses the surface of the lake and new growth.

    Huanghuacheng Great Wall

    Huanghuacheng is the only lakeside part of the Great Wall in Beijing. It is one of the most popular destinations for a Great Wall hiking tour. It is a hit because of the "train for spring", namely a train that travels through fields full of cherry blossoms.It is extremely romantic to take this train in spring with someone you love.

    Mount Huangshan

    Of all the notable mountains in China, Mount Huangshan is probably the most famous and is found in the southern part of East China's Anhui province. It is known for its breathtaking natural scenery.In the spring, Mount Huangshan is fresh, tender and full of wild flowers, and the sound of birdsong also is pleasant in the quietness

    How was your day today? If it was just sort of OK, with nothing much happening, then Scott Shaffer wants to hear from you. Mr Shaffer is the editor of the Journal of Mundane Behaviour. "We can learn a lot about the way that society works by examining normal patterns of behavior," he says. "All the ordinary decisions we make and ordinary things we do are society in action."

    The idea that social scientists should "study the unmarked", in Mr Shaffer's words, has also spread to historians. Traditionally, most history has been written as the story of greatness. It is all about great ideas, great people and great economic and social forces changing the way that millions of people live for ever. Albert Einstein's theory of relativity changed the way that we look at the universe. But has he been of more benefit to humanity than the unknown person who invented the first really comfortable shoe? Try thinking great thoughts when your feet hurt.

    In recent years, books of micro-history have been a great success with the public. Most micro historians like to relate their subject to wider developments in society. According to historian Catherine Gallagher, the potato was once a matter of great argument. Supporters pointed out that it could grow cheaply and easily and help feed the poor. Opponents said that this would lead to the poor becoming more powerful, since they did not have to spend every hour working to feed themselves. It seems that European socialism started with an argument about vegetables. British historian Colin Jones wants us to look at pictures painted hundreds of years ago. He wants us to notice the fact that nobody smiles in these pictures. Compare that with today, when everyone smiles for the camera and refusing to smile is seen as an unfriendly act. It is all because of dentistry, he says. Once people were able to look after their teeth, they began to smile and the world became a happier place.

    Whether stories like this are true or not, they put ordinary people at the center of history. Most of us are not going to change the world in a big way. But we might be able to do something that makes life a bit easier for other people. And maybe one day a historian will come along and write the story. It is something to get excited about, though perhaps not very excited.