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This world is a planet where a society of people has formed.

Authors sometimes invent new worlds. The authors use these worlds as the setting for their stories. Some authors invent worlds that have magic.

Nobody knows whether there are intelligent beings on other worlds.

World literature
World literature is literature that is read by many people all over this world. World literature is different from national literature."I am more and more convinced that poetry is the universal possession of mankind, revealing itself everywhere and at all times in hundreds and hundreds of men. . . . I therefore like to look about me in foreign nations, and advise everyone to do the same. National literature is now a rather unmeaning term; the epoch of world literature is at hand. – Johann Wolfgang von Goethe, 1827"

Worlds in literature
Creating a different world is a literary device used by authors to illustrate ideas. By placing the story in the setting of a different world, the author can change the way that things happen in the world. For example, the author might imagine a world that has very little water or a world that has very little dry land. Deciding what the world looks like and how the world works is called world-building. Thinking about the world helps the author make good choices about what happens to the characters in the story. Some authors think about many details, such as what languages the characters speak and what the architecture is on the world.

Worlds in science fiction


Science fiction stories often use different worlds. Frank Herbert's famous Dune series focused on a world called Arrakis that produces a rare chemical substance.

Often a science-fiction story will be involve multiple worlds. The Foundation series by Isaac Asimov was set in a galaxy with thousands of populated worlds. The Star Wars movies had a several important worlds, and characters traveled between them. Some authors of science fiction worlds try to make them scrupulously obey the laws of physics.

Fantasy worlds
Fantasy worlds are fictional worlds that use magic. This magic may involve saying magic words, using magical objects, or performing magical rituals.

World languages
Some languages spoken in many parts of the world. These are called world languages. , English is the most common world language. Previously, French was the most popular language in the West. Chinese was used by traders in all of East Asia for centuries. Arabic is common in the Middle East, Northern Africa, and other parts of the world.

Once upon a time, Greek and Latin were spoken by most traders in the Western world. Before then, traders learned the languages of nearby cities. Ancient traders did not travel around the world.

The Egyptians used pictures to write their language. The pictures are called hieroglyphics. This is what they look like:

World health
The World Health Organisation (French: Organisation mondiale de la santé ) is an international organisation for public health. It is part of the United Nations. The World Health Organisation began in 1948. It wants people to be healthy and safe. It studies public health and tells governments and other organisations how to help people become healthy.

The organisation counts the number of people with health problems. These health problems include influenza, HIV infection, and depression. It also counts the number of people who experience other problems. These problems include dirty water, violence, and hunger.

Mental health is also important. People with mental health problems such as depression often die ten years early.

The World Bank is also interested in health. Health affects economic prospects.

Poetry
This poem by John Donne mentions the world:

Her death hath taught us dearly that thou art Corrupt and mortal in thy purest part. Let no man say, the world itself being dead, 'Tis labour lost to have discovered The world's infirmities, since there is none Alive to study this dissection; For there's a kind of world remaining still, Though she which did inanimate and fill The world, be gone... The entire poem can be read at Wikisource.

Shape of this world
This world is not a perfect sphere. It is slightly flattened. This is the mathematical formula for measuring the flatness of a sphere:

$$\begin{align} f&=\frac{a-b}{a}. \end{align}$$

For this world, $f\,\!$ is approximately 0.3%. The Moon is rounder. For the Moon, $f\,\!$ is approximately 0.1%. Jupiter is flatter. For Jupiter, $f\,\!$ is approximately 6.5%.

Local planets
A world is on a planet. There are different types of planets. There are several types of planets in this solar system: These are the planets in this solar system:
 * Terrestrial planets
 * Giant planets
 * Gas giants
 * Ice giants
 * Four terrestrial planets
 * Mercury
 * Venus
 * Earth
 * One satellite, called the Moon
 * Mars
 * Two gas giants
 * Jupiter
 * Four large satellites
 * 63 other satellites
 * Saturn
 * 62 satellites. Some are very small. The largest, called Titan, is larger than the planet Mercury.
 * Seven are large.
 * Two ice giants
 * Uranus
 * Five satellites
 * 22 other satellites
 * Neptune
 * One satellite, called Triton

Gallery
= FATIGUE MANAGEMENT – A WORKER’S GUIDE = This is not plagiarism, the text is sourced fromː https://www.safeworkaustralia.gov.au/doc/fatigue-management-workers-guide

(just to see how procedures appear when laid out in MediaWiki)

What is fatigue?
Fatigue is more than feeling tired and drowsy. In a work context, fatigue is a state of mental and/or physical exhaustion that reduces a person’s ability to perform work safely and effectively.

It can occur because of prolonged or intense mental or physical activity, sleep loss and/or disruption of the internal body clock.

Signs of fatigue include:


 * tiredness even after sleep
 * reduced hand-eye coordination or slow reflexes
 * short term memory problems and an inability to concentrate
 * blurred vision or impaired visual perception
 * a need for extended sleep during days off work.

What causes fatigue?
Fatigue can be caused by work related or non-work related factors or a combination of both.

Work related causes of fatigue include excessively long shifts, not enough time to recover between shifts and blocks of shifts, very strenuous jobs and long commuting times. An example of non-work related fatigue would be poor quality sleep due to street noise or family demands.

The body clock
Most people are day-orientated meaning they are most alert and productive in the daytime and sleep at night. The circadian rhythms (the body clock) cause regular variations in individual body and mental functions repeated approximately every 24 hours. These rhythms regulate sleeping patterns, body temperature, heart rate, hormone levels, digestion and many other functions.

These rhythms influence job performance and quality of sleep. Most of the body’s basic functions show maximum activity by day and minimum activity by night. The body rhythms affect the behaviour, alertness, reaction times and mental capacity of people to varying degrees.

Why is fatigue a problem in the workplace?
Fatigue may increase the risk of incidents because of a lack of alertness. Fatigue may result in a slower reaction to signals or situations and affect the ability to make good decisions, particularly when:


 * operating fixed or mobile plant including driving vehicles
 * undertaking critical tasks that require a high level of concentration
 * undertaking night or shift work when a person would ordinarily be sleeping.

A person conducting a business or undertaking must ensure, so far as is reasonably practicable, the health and safety of workers while they are at work. This means if fatigue is identified as causing a risk to work health and safety, then suitable control measures should be implemented in consultation with workers to eliminate or minimise the risks.

Your responsibility as a worker
Workers have a duty to take reasonable care for their own safety and health and that their acts or omissions don’t adversely affect the health or safety of others. Workers must also comply with any reasonable instruction and cooperate with any reasonable policy or procedure relating to fatigue at the workplace, for example fitness for work policies and policies regarding second jobs.

To reduce the risk of being involved in a work incident caused by fatigue, you should:


 * comply with your organisation’s policies and procedures relating to fatigue
 * understand your sleep, rest and recovery needs and obtain adequate rest and sleep away from work
 * seek medical advice and assistance if you have or are concerned about a health condition that affects your sleep and/or causes fatigue
 * assess your own fitness for work before commencing work
 * monitor your level of alertness and concentration while you are at work
 * look out for signs of fatigue in the people you work with
 * in consultation with your supervisor, take steps to manage fatigue, for example take a break or short nap (night shift), maintain hydration (drink water), do some stretching or physical exercise, adjust the work environment (lighting, temperature)
 * talk to your supervisor or manager if you foresee or experience being impaired by fatigue likely to create a health and safety risk e.g. because of a health condition, excessive work demands or personal circumstances
 * assess your fatigue levels after work and take suitable commuting and accommodation options (e.g. avoiding driving if fatigued).

Further information is available in the Guide for managing the risk of fatigue at work.