prompt
stringlengths
1
2.94k
text
stringlengths
1
232k
seed_data
stringclasses
4 values
Air space | Aviation safety, Geography
Air space is the area of the air that is controlled by a country or organisation. You have to have the permission of the controller to enter their air space in an airplane. The air traffic controllers make sure the planes go in the right place and do not hit each other or something else. Some countries are very protec...
simple-english
Swamp cooler | Home appliances, HVAC
Swamp coolers are simple type of air conditioning device that can cool a room of a house or a car by using the cooling effect of the evaporation of water. This is known as evaporative cooling. Swamp coolers can cool the air temperature in a small space by drawing the air through wet pads (some are made of aspen wood) u...
simple-english
Saskatoon | Saskatoon, 1883 establishments in North America, 1880s establishments in Canada, 1906 establishments in North America, 1900s establishments in Saskatchewan, Establishments in Saskatchewan
Saskatoon is a city in Saskatchewan, Canada. With a 2021 census population of 266,141, Saskatoon is the largest city in Saskatchewan, but is not the capital, which is Regina. The South Saskatchewan River flows through the centre of the city, and many people enjoy boating, biking, and walking in the area. The University...
simple-english
Glass rod | laboratory equipment
Glass rods are sometimes used as stirrers in laboratory environments. Glass rods are often used to spread liquids evenly onto something. An example would be to coat glass surfaces with liquids to look at them under a microscope. Glass rods rubbed with silk or fur were used in early demonstrations of electrical energy. ...
simple-english
Thermometer | Laboratory equipment, Measuring tools, Temperature, Weather instruments, Thermometers
A thermometer is an instrument for measuring or showing temperature (how hot or cold something is). One type of thermometer is a narrow, concealed glass tube containing mercury or alcohol which extends along the tube as it expands. Another type is a digital thermometer, which uses electronics to measure temperature. Ea...
simple-english
Week | Units of time, Basic English 850 words
A week is 7 days in connecting order. There are usually 52 weeks in a year. In the English language, the days of the week are named after gods in Norse mythology, except for Saturday, which is named after a Roman god. English name Abbreviation Norse mythology Roman mythologyOld English name Sunday Sun. Sun's day Sunna...
simple-english
Suffix | Grammar, Linguistics terminology
A suffix is a few letters put at the end of a word to change its meaning. It is a type of affix mostly used to show inflection. Compare to prefix. Prefixes are letters put at the beginning of a word to change its meaning.
simple-english
Japanese language | Japanese language
Japanese () is the official language of Japan, in East Asia. Japanese belongs to the Japonic language family, which also includes the endangered Ryukyuan languages. One theory says Japanese and Korean are related, but most linguists no longer think so. Other theories about the origin of Japanese are that it is related ...
simple-english
Spice | Spices
Spice is an ingredient that adds flavor to food. It is usually used to enrich or alter the quality of something. Spices can be used to give food an interesting and exciting taste. Examples of a spice would be cinnamon, fenugreek and nutmeg. Spices can also be used to hide or cover up bad tastes in food which is rotten ...
simple-english
Flavor | Food and drink, Characteristics
Flavor (or flavour in British English) is the main quality of anything which affects the taste. When someone remarks on the flavor of something they are trying to describe the specific way something tastes. Flavor can also be used to describe the act of adding a taste alteration (to change the taste) to something. This...
simple-english
Bank | Banks, Money, Business
A bank is a financial institution where customers can save or borrow money. Banks also invest money to build up their reserve of money. What they do is regulated by laws. Those laws differ in different countries. The people who work at a bank are called bank employees. Certain banks deal directly with the public and ar...
simple-english
Halley's Comet | Comets
Halley's Comet (Comet Halley) is a comet which comes round every 75 or 76 years. When it is near, it can be seen with the naked eye. It will return in 2061. The comet is named after Edmond Halley (1656–1742), an English astronomer, who predicted the comet's return. Halley's Comet was the first comet to be recognized as...
simple-english
Hubble Space Telescope | Space telescopes, Spacecraft launched in the 1990s
Hubble Space Telescope (HST) is the first big optical space observatory telescope. Being above the atmosphere means it can see the sky more clearly than a telescope on the ground. The atmosphere blurs starlight before it reaches Earth. Named after the astronomer Edwin Hubble, the Hubble Space Telescope can observe 24 h...
simple-english
Motion sensor | Machines, Sensors
A motion sensor is a sensor device. It is used for studying motions. It is connected to a data-logger. The data-logger is connected to a computer. The computer runs a data-logging program. The computer is connected to power, and a security system. Motion sensors have many uses including security. Applications for movem...
simple-english
Arm | Limbs and extremities, Basic English 850 words
An arm is a limb. Most humans have two arms each, coming out of their body at the shoulder, just below the neck. On the end of each arm is a hand. Humans use arms and hands to do things to other objects, this is called manipulation. The main purpose of the hand is to grasp objects. Some other primates have arms which t...
simple-english
Arrow | Archery, Weapons
An arrow is a projectile fired with a bow. A bow and arrow is a weapon used before medieval times and later. For thousands of years, people all over the world have used bows and arrows for hunting and for defense. Arrows have a sharp point at one end and usually a flight at the other end. The flight is usually made o...
simple-english
Deceleration
#REDIRECTAcceleration
simple-english
Golf | Golf
Golf is a game played in an open field where the golfer plays his golf ball into a hole by using different types of clubs (golf instruments). The book Rules of Golf reads "The Game of Golf consists in playing a ball from the teeing ground into the hole by a stroke or successive strokes in accordance with the Rules." In...
simple-english
Spirituality | Spirituality
Spirituality is a name given to matters of the spirit. These can be any kind of meaningful personal activity or peaceful experience. There is not one agreed upon way to explain what happens. Spirituality is a concept that people can understand in different ways. Some people believe spirituality is a part of religion. O...
simple-english
2002 | 2002
2002 (MMII) was a common year starting on Tuesday in the Gregorian calendar. January 1 – The Treaty on Open Skies, initially signed in 1992, officially enters into January 1 – Euro notes and coins started to be used in France, Spain, Germany, Italy, Portugal, Greece, Finland, Luxembourg, Belgium, Austria, the Republic ...
simple-english
2003 | 2003
2003 (MMIII) was a common year starting on Wednesday in the Gregorian calendar. January 12 - Farah Jefry, Saudi footballer February 20 - Olivia Rodrigo, American singer-songwriter and actress January 1 – Pascal Couchepin becomes President of the Confederation in Switzerland. February 1 – Space Shuttle Columbia was dest...
simple-english
1999 | 1999
1999 (MCMXCIX) was a common year starting on Friday in the Gregorian calendar. It was the 19999th year of the Common Era (CE) and Anno Domini (AD) designations, the 999th year of the 2nd millennium, the 99th year of the 20th century, and the 10th and last year of the 1990s decade. Also, it was designated by the United ...
simple-english
1998 | 1998
1998 (MCMXCVIII) was a common year starting on Thursday in the Gregorian calendar. January 1 – Smoking is banned in all California bars and restaurants. January 2 - Russia begins to circulate new rubles to stem inflation and promote confidence. January 2 - A gunman shoots Antario Teodoro Filho, Brazilian politician and...
simple-english
1997 | 1997
1997 (MCMXCVII) was a common year starting on Wednesday in the Gregorian calendar. January 3 – Rahul Shah, Indian cricketer January 17 - Adyam Tesfalem, Eritrean road racing cyclist March 4 – Beatrice Vio, Italian wheelchair foil fencer March 8 – Sam Vanderpump, English former race kart driver, businessman and televisi...
simple-english
1996 | 1996
1996 (MCMXCVI) was a leap year starting on Monday in the Gregorian calendar. The most important events January 7 – The Eastern US is hit by a blizzard. It was almost the same as the 1997, 1998, 1999, 2000 and 2002 blizzards. It killed more than 150 people. January 11 – Ryutaro Hashimoto becomes Prime Minister of Japan....
simple-english
1995 | 1995
1995 (MCMXCV) was a common year starting on Sunday in the Gregorian calendar. January 1 – Austria, Finland and Sweden joined the EU. January 2 – Former President of Somalia, Siyad Barre died. He had been ousted in 1991. January 6 to January 7 – A chemical fire happened in an apartment complex in Manila, Philippines. Po...
simple-english
1994 | 1994
1994 (MCMXCIV) was a common year starting on Saturday in the Gregorian calendar. January 21 – Laura Robson, British tennis player February 14 – Paul Butcher, American actor February 14 – Allie Grant, American actress February 23 – Dakota Fanning, American actress February 27 – Hou Yifan, Chinese chess player March 1 – ...
simple-english
1993 | 1993
1993 (MCMXCIII) was a common year starting on Friday in the Gregorian calendar. January 1 – Czechoslovakia divides. Establishment of independent Slovakia and Czech Republic. January 3 – In Moscow, George H. W. Bush and Boris Yeltsin sign the second Strategic Arms Reduction Treaty (START). January 5 – Washington State ...
simple-english
1992 | 1992
1992 (MCMXCII) was a leap year starting on Wednesday in the Gregorian calendar. January 1 – Boutros Boutros-Ghali becomes Secretary General of the UN. January 1 – George H. W. Bush becomes the first US President to address the Australian parliament. January 8 – George H. W. Bush is filmed falling violently ill at a sta...
simple-english
1991 | 1991
1991 (MCMXCI) was a common year starting on Tuesday in the Gregorian calendar. January 5 – Georgian troops attack Tskhinvali, the capital of South Ossetia. This begins the 1991–92 South Ossetia War February 11 – The Unrepresented Nations and Peoples Organization (UNPO) forms in The Hague, Netherlands. March...
simple-english
2005 | 2005
2005 (MMV) was a common year starting on Saturday in the Gregorian calendar. It was the 2005th year of the Common Era (CE) and Annno Domini (AD) designations, the 5th year of the 3rd millennium and of the 21st century, and the 6th year of the 2000s decade. January 3 – Flash Airlines Flight 604, a Boeing 737, crashes in...
simple-english
2006 | 2006
2006 (MMVI) was a common year starting on Sunday in the Gregorian calendar. It was the 2006th year of the Common Era (CE) and Anno Domini (AD) designations, the 6th year of the 3rd millennium and of the 21st century, and the 7th year of the 2000s decade. In the Chinese calendar, 2006 was the Year of the Dog. Chinese Ne...
simple-english
2007 | 2007
2007 (MMVII) was a common year starting on Monday in the Gregorian calendar. If you visit English Wikipedia, you can see that it was the 2007th year of the Common Era (CE) and Anno Domini (AD) designations, the 7th year of the 3rd millennium and of the 21st century, and the 8th year of the 2000s decade. The year 2007 w...
simple-english
1989 | 1989
1989 (MCMLXXXIX) was a common year starting on Sunday in the Gregorian calendar. A wave of counter revolutions led to the end of the Eastern Bloc and the Cold War during the year. January 7 – Akihito becomes Emperor of Japan following the death of Hirohito. The Heisei period begins. January 8 – the Kegworth Air Disast...
simple-english
Common year | Years
A common year is a calendar year with 365 days. It is a year that is not a leap year. This means a common year has 52 weeks and one day. So if a certain year started on a Monday, the following year will start on a Tuesday. Stated differently, a common year always begins and ends on the same day of the week (for examp...
simple-english
Decade | Units of time
A decade (pronunciation: DEK-aid) is a period of 10 years. The word comes from the Ancient Greek word deka ("ten"). Ten decades make a century, while 100 decades make a millennium. A decade is any 10-year period: There are different ways to refer to different groupings of ten years. For example, the period from 2001 to...
simple-english
19th century | 19th century
The 19th century lasted from 1801 to 1900. Some people call this the Victorian era because Queen Victoria ruled the United Kingdom. The Second Industrial Revolution started in most western countries during this century. 1830: The Church of Jesus Christ of Latter Day Saints is established on 6 April. 1844: Persian Proph...
simple-english
21st century | 21st century
The 21st century began on January 1, 2001 and will end on December 31, 2100. Note: years before or after the twenty-first century are in italics. 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027...
simple-english
Ijtihad | Islamic law
Ijtihad () is the process of reaching a legal decision on the basis of one's own interpretation of Islamic law. The word is related to the better-known jihad. Ijtihad appeared among the Muhammad's companions.
simple-english
Standard temperature and pressure | Gases, Measurement, Engineering, Chemistry, Standards, Thermodynamics
In order to be able to reproduce experiments, standard conditions for temperature and pressure have been defined in different fields of science. Very often these are also called standard temperature and pressure. The table below gives some examples: DomainTemperaturePressureDefined byPhysics273.15 K (0 °C, 32 °F) 101.3...
simple-english
STP
STP usually refers to: Stone Temple Pilots, an American rock band Standard Temperature and Pressure, definition STP may also refer to: Straight Through Processing, banking term where a financial transaction is automatically completed without manual intervention Segment, Target and Position, a marketing acronym STP (mo...
simple-english
Jungle | Forests, Biomes
The jungle is a place in a rainforest where the forest floor is covered with plants. Like other rainy places, they have many rivers or streams. Scientists think that more types of animals and plants live in the jungles than everywhere else. When people talk about jungles, they sometimes mean the whole rainforest. The c...
simple-english
Light | Light
Light has a wavelength. Some wavelengths can be seen by the human eye. Others cannot. Many animals can see light. They need it to find food, water, and other things. Light makes up a part of both the electromagnetic spectrum and radiation given by stars, like the sun. The light that comes from the sun reaches the Eart...
simple-english
Stockholm | Stockholm, Olympic cities, 13th-century establishments in Europe, Establishments in Sweden
Stockholm is the capital city of Sweden. It is also the biggest city in Sweden. It is on the east coast of the country. The city is built on islands, with canals and open water in the inner city. Stockholm is found between Sweden's third largest lake, Mälaren, and the Baltic Sea. Tyresta National Park is near Stockholm...
simple-english
Rain | Ecology, Precipitation, Basic English 850 words
Rain is a kind of precipitation. Precipitation is any kind of water that falls from clouds in the sky, like rain, hail, sleet and snow. It is measured by a rain gauge. Rain is part of the water cycle. Clouds will often absorb smoke to create rain, commonly referred to as "nature's laundry" due to this process. Some pla...
simple-english
2009 | 2009
rect 0 0 200 200 Air France Flight 447 rect 200 0 400 200 first inauguration of Barack Obama rect 400 0 600 200 2009 Iranian presidential election protests rect 0 200 300 400 2009 swine flu pandemic rect 300 200 600 400 US Airways Flight 1549 rect 0 400 200 600 2009 L'Aquila earthquake rect 200 400 400 600 Bitcoin rect...
simple-english
Gambling | Gambling
Gambling is a contest where a player bets on the result of an event. The bet is generally in the form of money. The rules and the amount of money bet have to be decided on before the event happens. Playing cards appeared in the 9th century AD in China. Records trace gambling in Japan back at least as far as the 14th ce...
simple-english
Monty Python | Monty Python
Monty Python, also known as The Pythons, is a group of British comic actors. They have acted in several comedy movies (most famously, Monty Python and the Holy Grail). They had a television show, Monty Python's Flying Circus between 1969 and 1974, which is still well-known and watched around the world. The members of M...
simple-english
Time zone | Time zones
Time zones give specific areas on the Earth a time of day that is earlier or later than the neighboring time zones. This is because when it is daytime on one side of the earth, it is night-time on the other side. There are 24 time zones dividing the earth into different times, each with its own name, like the North Ame...
simple-english
Market | Basic English 850 words, Retail markets
300px|thumbnail|Wet market in Singapore A market is a place where people go to buy or sell things. When people have products to sell, they set up a market place. There may be a special building for the market place, or the market may be held in an open space where the sellers can put up a stall (like a kind of tent) an...
simple-english
Electron | Basic physics ideas, Elementary particles, Electron
An electron is a very small piece of matter made up of negative charge. Its symbol is e− or β-, and it was discovered by J. J. Thomson in 1897. An electron is a subatomic particle, particle smaller than an atom. Every atom is made of some electrons that surround the nucleus of the atom, e.g. Hydrogen has 1 electron in...
simple-english
Chile | Chile, Spanish-speaking countries
Chile, officially the Republic of Chile, is a country on the south-western side of South America. Most people there speak Spanish. Chile, which claims a part of the Antarctic continent, is the longest country on earth. The Atacama Desert, in the north of the country, is the driest place on earth. The average rainfall t...
simple-english
Ambassador | Government occupations, Ambassadors
An ambassador is a person sent by the government of a country to a different country. The ambassador is the official representative of their country. The ambassador speaks to officials of the other country about any problems and issues between the two countries. In past years, communication between countries could tak...
simple-english
Monday | Days of the week
Monday is a day of the week. In some countries, it is the second day of the week. In other parts of the world, including some countries in Europe, Monday is the first day of the week. Monday is the day in which is celebrated Easter Monday. The International Standards Organization considers Monday the first day of the w...
simple-english
Nuclear war | War, Nuclear weapons
A nuclear war is a war in which countries fight with nuclear weapons. Because nuclear weapons are extremely powerful and could cause destruction throughout the world, the possibility of nuclear war has had a great effect on international politics. So far, two nuclear weapons have been used during warfare. They were use...
simple-english
Tax | Basic English 850 words, Taxation
Tax is money that people have to pay to the government. The government uses the money it gets from taxes to pay for things. For example, taxes are used to pay for people who work for the government, such as the military and police, provide services such as education and health care, and to maintain or build things like...
simple-english
Florida | Education in the United States, Florida, 1845 establishments in the United States
Florida ( American Spanish: ), is a state in the southeast part of the United States. It is the 22nd largest US state by total area with 65,757.70 sq mi (170,313 km2) and the third most-populous with a 2020 population of more than 21 million. It is a peninsula, which means that water surrounds the state on three of fou...
simple-english
Mario | Animated human characters, Fictional characters introduced in 1981, Fictional American people, Fictional Italian people, Mario series characters, Mascots, Animated movie characters
is a video game character made by Nintendo. He is an Italian plumber who lives in the Mushroom Kingdom. The character was created and designed by Japanese game designer Shigeru Miyamoto. Mario is the main mascot of Nintendo along with his rival Bowser. He has been in more than 200 games by the company, which are usuall...
simple-english
Video game | Video games
A video game is an electronic game played on a video screen (normally a television, computer monitor, or built-in screen when played on a handheld machine). There are many types, or genres, of video games: role-playing games; shooters, first-person shooters, side-scrollers, and platformers. Video games usually come on ...
simple-english
Oboe | Double reed instruments
An oboe is a woodwind instrument with a double reed. It looks very similar to the clarinet, and may be confused with it. While the clarinet's shape remains cylindrical, the oboe's body is conical. The sounds produced by clarinets and oboes are very different. An oboe's sound is produced by blowing air through the doubl...
simple-english
GURPS | Role-playing games
The Generic Universal RolePlaying System, or GURPS, is a role-playing game system created by Steve Jackson Games. It emphasizes a set of rules that can be used in any time or world. Characters are created using a point-based system. There have been four releases of the GURPS core rules and dozens of game supplements ...
simple-english
Eric Idle | 1943 births, Living people, Actors from County Durham, Alumni of the University of Cambridge, English comedians, English movie actors, English television actors, English voice actors, British Grammy Award winners, Monty Python, Naturalized citizens of the United States
Eric Idle (born 29 March 1943) is an English actor, comedian, composer, musician, singer-songwriter and writer. He is one of the members of Monty Python. Monty Python is a British comedy team. Idle was born in South Shields, County Durham. He studied English at Pembroke College, Cambridge. He is most known for his song...
simple-english
Enemy | War
An enemy is a person or group of people who is against another person or group. In war, the enemy is anyone fighting for the other side of the war. In the Bible, Saint Peter states that: ' your enemy, the Devil, roams around like a roaring lion looking for someone to devour' (1 Peter 5:8)
simple-english
2000 | 2000
2000 (MM) was a century leap year starting on Saturday in the Gregorian calendar. It was the 2000th year of the Common Era (CE) and Anno Domini (AD) designations, and the last year of the 2nd millennium and the 20th century. 2000 was designated the International Year for the Culture of Peace and the World Mathematical...
simple-english
Adelaide | 1836 establishments in Australia, Adelaide
Adelaide () is a city in Australia. It is the capital city of the state of South Australia, and it has an approximate population of 1.2 million people. It is the fifth biggest city in Australia, behind Sydney, Melbourne, Brisbane and Perth. Adelaide was founded in 1836 by Colonel William Light, who named it after Queen...
simple-english
Yoshi | Fictional characters introduced in 1990, Mario series characters, Fictional dinosaurs
Yoshi is a fictional dinosaur who appears in the Mario series of video games made by Nintendo. The character was created by Shigeru Miyamoto. Yoshi's best-known ability is his ability to eat enemies. He has a long tongue which he uses to eat enemies and items. In some games, after Yoshi eats enemies, they can be turned...
simple-english
Lake | Lakes, Biomes
A lake (from Latin: lacus) is a large body of water (larger and deeper than a pond) within a body of land. As a lake is separated from the ocean, it is not a sea. Some lakes are very big, and people in the past sometimes called them seas. Lakes do not flow like rivers, but many have rivers flowing into and out of them....
simple-english
French
Something that is from or related to France
simple-english
East | Basic English 850 words, Compass directions
East is one of the 4 main directions on a compass (called cardinal directions). East is normally to the right on most maps. For example: Japan is east of China, which is itself east of Pakistan. When “The East” is described: it usually refers to the countries of Asia (especially from Pakistan eastwards like China and I...
simple-english
Tire | Auto parts, Polymers
alt=|thumb|A tire for a car A tire is a ring of material that covers the rim of a wheel. Most road vehicles and many other vehicles use rubber tires. Tires help vehicles to move smoothly. Some metro trains and trams also use rubber tires on their steel wheels to provide better traction than the steel tires of other tra...
simple-english
Population | Population
A population is the number of living people that live together in the same place. A city's population is the number of people living in that city. These people are called inhabitants or residents. The population includes all individuals that live in that certain area. The world population was estimated to have reached ...
simple-english
World war | War
A world war is an international conflict in which most of the countries in the world fight or help. There have been two World Wars so far, World War I (1914-1918), and World War II (1939-1945), Several earlier historical wars such as the Anglo-Dutch Wars were fought in many places around the world, but they were wars ...
simple-english
Snow | Basic English 850 words, Snow
Snow is a form of ice. Snow forms when water in the atmosphere becomes frozen. It comprises individual ice crystals that grow while suspended in the atmosphere—usually within clouds—and then fall, accumulating on the ground where they undergo further changes. Snow comes in all different shapes and sizes. At the freezin...
simple-english
West | Basic English 850 words, Compass directions
West is one of the 4 main directions on a compass. West is normally to the left on most maps. For example: (Germany is located to the west of Poland, which is itself located to the west of Lithuania). When “The West” is used in everyday speech: it usually refers to the nations of Europe (Especially from Croatia Westwar...
simple-english
List of physics topics | Physics, Science-related lists
Compression --Critical angle -- Colour filter -- Concave lens -- Convex lens Diffraction -- Density (distance)--(displacement) Electromagnetic spectrum -- Energy -- Fluid friction -- Focus -- Force sensor -- Frequency -- Friction -- Gamma ray -- Gravity Inertia -- Interference Lamp-housing -- Laser pointer -- Lens -- L...
simple-english
President | Presidents, Titles, Government occupations
A president is the leader of a country which is a republic. A president is usually elected directly through a vote by the citizens or indirectly by legislatures (parliaments) who were voted by the citizens and which represents them. Some presidents are both the head of state and head of government, such as the Presiden...
simple-english
List of colors | Color, Lists
* This is a list of colors that have articles about them on the Simple English Wikipedia. Name ColorHTML (HEX) CodeRed (RGB) (0 - 255)Green (RGB) (0 - 255)Blue (RGB) (0 - 255)Hue (HSL) (0 - 360)Sat (HSL) (0 - 100)Lum (HSL) (0 - 10)Alice blue#F0F8FF240248255208*100%4%Amaranth#E52B502294380348*81%53%Amber#FFBF00255191045...
simple-english
List of lakes | Lists of lakes
A list of lakes, ordered by continent: International Lakes in Africa Lake Albert (Mobuto-Sese-Seko) Lake Nyasa (Lake Malawi) in Democratic Republic of the Congo (Zaire) Lake Mai-Ndombe (Lake Leopold II) Lake Chew Bahir (Lake Stefanie) Lake Turkana (Lake Rudolf or Rudolph) Nyumba ya Mumgu Reservoir International Lakes i...
simple-english
Galileo Galilei | 1564 births, 1642 deaths, Italian astronomers, People from Pisa, Italian physicists, Catholicism-related controversies
Galileo Galilei (15 February 1564 – 8 January 1642) was an Italian polymath. He was a professor of mathematics and natural science in Padua and Pisa. People most remembered him today for his conflict with the Catholic Church of his day, which led to his trial for heresy by the Inquisition. Galileo was born on 15 F...
simple-english
Agreement | Basic English 850 words
An agreement is writing down a promise made. Agreements are common in law and business. For example, when a person takes out a loan or hires someone to work, an agreement is usually signed so that everyone understands what and when things must be done.
simple-english
Promise | Ethics, Law
When a person agrees to do something or to not do something, that person is making a promise. A promise can be made verbally (by saying it), or it can be written down as a contract. Breaking a promise, or not keeping it, is often just bad manners, but it can sometimes be illegal, such as when a contract is not kept. A ...
simple-english
Cloud | Basic English 850 words, Clouds
A cloud is water vapour in the atmosphere (sky) that has condensed into very small water droplets or ice crystals that appear in visible shapes or formations above the ground. Water on the Earth evaporates (turns into an invisible gas) and rises up into the sky. Higher up where the air is colder, the water condenses: i...
simple-english
Water cycle | Water, Weather, Environmental science, Environmental chemistry
The water cycle, or hydrological cycle, is the cycle that water goes through on Earth. Water is essential for life as we know it. It is present throughout the Solar System, and was part of the Earth from its formation. The source of the water was the same as the source of the Earth's rock: the cloud particles which con...
simple-english
Water vapor | Thermodynamics, Water
Water vapor is water that is in the form of a vapor, or gas. It is a part of the water cycle. When liquid water is heated to boiling point, 100 °C (212 °F), it turns into vapor. Water vapor can also be produced directly from ice; this is called sublimation. Steam is water vapor, but clouds are liquid water. The amount ...
simple-english
Solid | Basic English 850 words, States of matter
Solid is one of the four common states of matter. The molecules in solids are closely bound together, so they can only vibrate. This means solids have a definite shape that only changes when a force is applied. This is different to liquids and gases which move randomly, a process called flow. Solids can resist forces a...
simple-english
Evaporation | Materials science, Gases
Evaporation is when a liquid becomes a gas without forming bubbles inside the liquid volume. If bubbles are formed we are talking instead about "boiling". For example, water left in a bowl will slowly disappear. The water evaporates into water vapor, the gas phase of water. The water vapor mixes with the air. The oppos...
simple-english
Contract | Business law, Documents, Common law
A contract is an agreement or promise that the law can enforce. The law will enforce some agreements but not others. For example, in most places, if a parent promises to take a child to get ice cream, the law will not enforce that promise as a legal contract. The legal rules about which promises are enforced by the law...
simple-english
Face | Basic English 850 words, Face
The face is a part of the body at the front of the head. It is the part of us that others interact with. On the face are organs of sight, smell, hearing. Especially in a four-legged animal, the face is the part which goes first into the world, and that is why the sense organs and the mouth are there. In humans, the fac...
simple-english
Kolkata | Former national capitals, Kolkata
Kolkata (spelled Calcutta before 1 January 2001) is the capital city of the Indian state of West Bengal. It is the second largest city in India after Mumbai . It is on the eastern bank of the River Hooghly. When it is called Calcutta, it includes the suburbs. This makes it the third largest city of India. It is also kn...
simple-english
Pencil | Writing tools
1. Solid pigment core (typically graphite, commonly called pencil lead). A pencil is a kind of writing equipment that is also used to draw, usually on paper. Most pencil cores are made of graphite powder mixed with a clay binder. So, a pencil is usually made with a piece of graphite mixed with clay that has a wood case...
simple-english
Logic | Logic, Science, Philosophy, Mathematics, Formal sciences
Logic is the study of reasoning. The rules of logic let philosophers make logical deductions about the world. Logic helps us decide whether something can be true or false. Logic is often written in syllogisms, which are one type of logical proof. A syllogism is made from a collection of statements used to logically pro...
simple-english
Communism | Communism
Communism is an idea in politics based on equality, that seeks a world without different social class groups. They say that things like factories, tools and farms (the relations of production) are owned by the bourgeoisie. Communists want the workers to take power and the means of production. They believe this will bri...
simple-english
Resurrection | Theology, Afterlife
Resurrection means bringing someone back to life after death. Polytheistic religions The idea of resurrection is found in writings of ancient polytheistic religions in the Middle East. Some Egyptian and Canaanite writings tell of gods being resurrected, such as Osiris and Baal. In Greek mythology, many men and women we...
simple-english
Monarchy | Monarchy
A monarchy is a kind of government where a monarch, a kind of hereditary ruler (someone who inherits their office), is the head of state. Monarchs usually rule until they die or pass down (when a monarch resigns it is called abdication). Most monarchies are hereditary, but some are elected. The most famous elected mona...
simple-english
North Korea | North Korea, 1945 establishments in Asia, Current dictatorships, Totalitarian states
North Korea, officially called the Democratic People's Republic of Korea (DPRK) is a country in the northern part of the Korean peninsula in East Asia. North Korea is next to China, Russia, and South Korea. The capital city of North Korea is Pyongyang, which is also the largest city in the country. The country was foun...
simple-english
Parliament | Parliaments
A parliament is a type of legislature. The most famous parliament is probably the Parliament of the United Kingdom, which is sometimes called the "Mother of all Parliaments". The word "parliament" comes from the French word parler, which means a talk. The Althing, the national parliament of Iceland, was founded earlie...
simple-english
Turing test | Artificial intelligence
The Turing test is a test to see if a computer can interact with a person. The human should not be able to realize it is interacting with a computer. Alan Turing thought that if a human could not tell the difference between another human and the computer, then the computer had shown intelligent behavior. A person has a...
simple-english
Fuel | Fuel
A fuel is a substance that is changed in some way to produce heat, electricity, or other forms of energy. This is usually by being burnt in fire, although there are exceptions, such as nuclear fuel. Fuel can be divided into two main types: fossil fuels and other fuels. There are several kinds of fossil fuels: oil and p...
simple-english
List of volcanoes | Lists of volcanoes
The list of volcanoes includes some which are active, dormant and extinct: Heard Island and the McDonald Islands Big Ben (Heard Island) Glasshouse Mountains Mount Eccles, in Mount Eccles National Park Mount Franklin, near Hepburn Springs Mount Fraser, near Beveridge Mount Rowan (Victoria) Tower Hill, in Tower Hill Stat...
simple-english
Estonia | Estonia, European Union member states, 1991 establishments in Europe
Estonia (), officially the Republic of Estonia () is a country by the Baltic Sea in Northern Europe. The capital city is Tallinn. Estonia has borders with Sweden, Finland, Russia and Latvia. Its population is 1,332,893. The territory includes the mainland and 2,222 islands in the Baltic Sea. People have lived in Eston...
simple-english