Life expectancy is how long you are expected to live. This depends on many things including where you live. The highest life expectancy is for people from Monaco, 89.52 years. The lowest is for people from Chad where life expectancy is only 49.81 years.
Psychology is the study of how the human mind works. The human brain is the main controller of what a person does. Everything from moving and breathing to thinking is done by the brain. The human neocortex is huge compared with other mammals, and gives us our thinking ability, and the ability to speak and understand language.
Neurology is the study of how the brain works, psychology is the study of how and why people think and feel. Many aspects of life are also influenced by the hormone system, including growth and sexual development. The hormonal system (especially the pituitary gland) is partly controlled by the brain.
Human behaviour is hard to understand, so sometimes psychologists study animals because they may be simpler and easier to know. Psychology overlaps with many other sciences including medicine, biology, computer science and linguistics.
Language at its most basic is talking, reading and writing. The study of language is called linguistics. Humans have the most complicated languages on Earth. Although almost all animals communicate, human language is unique. Its use of syntax, and its huge learnt vocabulary are its main features. There are over 7,300 languages spoken around the world. The world's most spoken first language is Mandarin Chinese, and the most spoken language is English. This includes speakers of English as a second language.
Art has existed almost as long as humans. People have been doing some types of art for thousands of years as the picture on the right shows. Art represents how someone feels in the form of a painting, a sculpture or a photograph.
Music has also been around for thousands of years. Music can be made with only your voice but most of the time people use instruments. Music can be made using simple instruments only such as simple drums all the way up to electric guitars, keyboards and violins. Music can be loud, fast, quiet, slow or many different styles. Music represents how the people who are playing the music feel.
Literature is anything made or written using language. This includes books, poetry, legends, myths and fairy tales. Literature is important as without it many of the things we use today, such as Wikipedia, would not exist.
Humans often categorize themselves by race or ethnicity. Modern biologists know that human gene sequences are very similar compared to many other animals. This is because of the "recent single origin" of modern humans. That is one reason why there is only one human race.
Ethnic groups are often linked by linguistic, cultural, ancestral, and national or regional ties. Race and ethnicity can lead to different social treatment called racism.
Religion is a belief of faith in a higher being, spirit, or any system of ideas that a group of people believe in. To have faith in a belief is to have the belief without proof that it is true. Faith can bring people together because they all believe in the same thing. Some of the things religions talk about are what happens after death, why humans exist, how humans came to exist (creation), and what is good to do and not to do (morality). Some people are very religious. Many people believe in one all-powerful god; some people believe in more than one god; some people are atheists, who do not believe in a god; and some people are agnostics, who are not sure if there is a god.
Technology are the things and methods which humans use to make tasks easier. Science is understanding how the universe and the things in it work. Technology used to be quite simple. It was passed on by people telling others, until writing was invented. This allowed technology to develop much quicker. Now people understand more and more about the world and the universe. The use of the telescope by Galileo, Einstein's theory of relativity, lasers, and computing are all scientific discoveries. Technology is of great importance to science, to medicine, and to everyday life.
A war is a lethal fight between large groups of people, usually countries or states. A war involves the use of lethal weapons as both sides try to kill the other. It is estimated that during the 20th century, between 167 and 188 million humans died because of war. The people who fight for a state in wars are called soldiers. The people who fight in wars, but not for a state, are usually called "fighters".
Modern wars are very different from wars a thousand or even a hundred years ago. Modern war involves sabotage, terrorism, propaganda, and guerrilla warfare. In modern-day wars, civilians (people who are not soldiers) are often targets. An example of this is the nuclear bomb dropped on Hiroshima and Nagasaki at the end of World War II. The bombs killed as many as 140,000 people in Hiroshima and 80,000 in Nagasaki by the end of 1945, about half on the days of the bombings. Since then, thousands more have died from wounds or illness because of exposure to radiation released by the bombs. In both cities, the overwhelming majority of the dead were civilians. In Germany, Austria, and Great Britain, conventional bombs were used. About 60,595 British, and 550,000 German, civilians were killed by planes bombing cities.
Treehouse
Treehouses are platforms or buildings built into a tree. They are constructed around, next to, or in mature trees. They are usually above ground level. Tree houses can be used for recreation, work space or as an observation deck. A tree house can be a peaceful quiet place for seclusion or solitude.
Treehouses are often built for children to play. They are a natural extension of children's love of climbing trees. Treehouses can also be a casual retreat or working space, especially if provided with electricity. In many parts of the world guests can rent a treehouse. They can also stay in a treehouse hotel.
Sometimes they are built for protection against wild animals. In some parts of the tropics, houses are either fastened to trees or elevated on stilts. This is to keep the living quarters above the ground to protect occupants. A tree house can also be a place to store food from scavenging animals. The Korowai, a Papuan tribe in the southeast of Irian Jaya, live in tree houses. Some are nearly high (see image below). They are used as protection against a tribe of neighbouring head-hunters, the Citak.
Tree houses are an option for building eco-friendly houses in remote forest areas. They do not require a clearing of a certain area of forest. Because they are elevated or built into forested areas, they are not desirable to some people.
French touch
French touch or French house was a kind of house music, which became popular in France in the mid 1990s, and spread to the rest of Europe later.
Enter the Wu-Tang (36 Chambers)
Enter the Wu-Tang (36 Chambers) is the debut album by American hip-hop group Wu-Tang Clan released on November 9, 1993 by Loud Records. It was entirely produced by the group leader RZA.
The album has been considered to be one of the greatest hip-hop album in history.
Mike Richter
Michael Thomas Richter (born September 22, 1966) is an American retired professional ice hockey goaltender. He played parts of 14 years in the National Hockey League (NHL) all with the New York Rangers. He also played for the United States in international play and won a silver medal with them at the 2002 Winter Olympics. He was inducted into the United States Hockey Hall of Fame along with his former teammate Brian Leetch in 2008.
Before playing in the NHL, Richter played college hockey with the University of Wisconsin–Madison Badgers from 1985 until 1987. He also played 2 years in the International Hockey League (IHL) with the Colorado Rangers/Denver Rangers organization.