Топ-100

★ Free online encyclopedia. Did you know? page 10



                                               

IELTS

The International English Language Testing System tests how fluent you are in the English language. People who take the test take the Academic Module or the General Training Module. The academic one is for people who want to go to university. The ...

                                               

Luscher color test

The Luscher color test is a psychological test invented by Dr. Max Luscher in Basel, Switzerland. Luscher believed that sensory perception of color is "all shared by all", but that color preferences are not. This difference allows subjective stat ...

                                               

Mental state examination

The mental status examination, MSE, is an important step in a "clinical assessment" of an individual. The purpose of the MSE is to get an over-all description of the patients mental state. This, with information about the person, lets the clinici ...

                                               

Mohs scale of mineral hardness

Mohs scale of mineral hardness is named after Friedrich Mohs, a mineralogist. Mohs scale is ordered by hardness, determined by which minerals can scratch other minerals. Rocks are made up of one or more minerals. According to the scale, Talc is t ...

                                               

Multiple choice

Multiple choice questions ask people to choose the answer from a list. Tests, elections, and surveys can use multiple choice questions. Frederick J. Kelly made the first multiple choice questions in 1914 at the University of Kansas. This testing ...

                                               

Psychological test

Psychological testing of the modern type started about 150 years ago. Francis Galton invented the first tests. The American psychologist James Cattell studied with Galton and then, in 1890, published a classic paper Mental Tests and Measurements. ...

                                               

TOEFL

The Test of English as a Foreign Language, or TOEFL, is a test which measures people’s English language skills to see if they are good enough to take a course at university or graduate school in English-speaking countries. It is for people whose ...

                                               

TOEIC

The TOEIC is an examination for learners of English. It is mainly used in Japan, but is also important in some other countries. The test started in 1977. The full name of the exam is the Test of English for International Communication. The Educat ...

                                               

Unit of measurement

Units of measurement give standards so that the numbers from our measurements refer to the same thing. Measurement is a process that uses numbers to describe a physical quantity. We can measure how big things are, how warm they are, how heavy the ...

                                               

Hertz

The hertz is a unit derived from time which measures frequency in the International System of Units. Frequency is how often something happens. A frequency of 1 hertz means that something happens once a second. The note Middle C is 261.65 Hz. This ...

                                               

Knot (speed)

A knot is a unit of speed. It is abbreviated kt or kn. It is a non-SI unit accepted for use with the SI. It is used around the world in meteorology and for maritime and aviation purposes.

                                               

Metre per second

Metre per second is an SI unit of measurement of both speed and velocity. It is defined by the distance in metres divided by the time in seconds. Its abbreviation is m / s or m s -1. In astronomy, the unit is sometimes used in kilometres per second.

                                               

Planck units

The Planck units are physical units of measurement. The system of these units was first developed by Max Planck. The four basic Planck units are based only on four physical constants found in nature. When Planck units are used to express any of t ...

                                               

Area of Outstanding Natural Beauty

An Area of Outstanding Natural Beauty is an area of countryside considered to have significant landscape value in England, Wales or Northern Ireland. Natural England designates them on behalf of the United Kingdom government. The Countryside Coun ...

                                               

Isles of Scilly

The Isles of Scilly form an archipelago off the southwestern tip of the Cornish peninsula of Great Britain. The islands have had a unitary authority council since 1890, and are separate from the Cornwall unitary authority. Some services are combi ...

                                               

Atmosphere of Earth

The atmosphere is the layer of gases around the Earth. It is held in place by Earths gravity.There are total 5 layers of atmosphere, named stratosphere, troposphere,mesosphere,thermosphere and exosphere. It is made up mainly of nitrogen. It also ...

                                               

Atmosphere of Mars

The atmosphere of Mars is the layer of gases surrounding Mars. It is mainly made up of carbon dioxide. The average atmospheric pressure of the Martian surface is much lower than that of the Earth. The pressure is well below the Armstrong limit, m ...

                                               

Atmospheric circulation

Atmospheric circulation is a large-scale movement of masses of air. The origin of these processes is the suns radiation. The sun waves radiate the short-wave radiation. The earth absorbs only a part of this energy. The other part is radiated back ...

                                               

Death zone

The death zone is the name used by mountain climbers for high altitude where there is not enough available oxygen for humans to breathe. This is usually above 8.000 metres. Most of the 200 climbers who have died on Mount Everest have died in the ...

                                               

Earths magnetic field

The Earth’s magnetic field is the magnetic field that surrounds the Earth. It is sometimes called the geomagnetic field. The Earth’s magnetic field is created by the rotation of the Earth and Earths core. It shields the Earth against harmful part ...

                                               

Earths orbit

All planets in our solar system follow an elliptical path. This path is known as an orbit. Earths orbit is not a perfect circle. If we were to draw the Earths orbit on a sheet of paper as a perfect circle, the width of the line would be larger th ...

                                               

Flat Earth

The idea of a flat Earth is that the surface of the Earth is flat. Belief in a flat Earth is found in the oldest writings. Early Mesopotamian maps showed the world as a flat disk floating in the ocean. This was a common belief until the Classical ...

                                               

Flat Earth Society

The Flat Earth Society is an organization claiming that the Earth is flat. It was started by Samuel Shenton in 1956. Charles K. Johnson was the leader and made his home the organizations base. The Flat Earth Society is thought to have disbanded a ...

                                               

Milankovich cycle

A Milankovich cycle is any slow but regular change in the Earths orbit round the Sun, and the tilt of the Earths axis. The dynamics are complex. The changes affect the insolation sunlight falling on parts of the Earth. This leads to cycles of cli ...

                                               

Orbital forcing

Orbital forcing is the effect on climate of slow changes in the tilt of the Earths axis and shape of the orbit. These orbital changes alter the amount of sunlight reaching the Earth by up to 25% at mid-latitudes. In this context, the term "forcin ...

                                               

Origin of water on Earth

The origin of water on Earth is only partly known. Life as we know it depends on water, and most types of life started in the seas. Earth is the only planet known with liquid water on its surface. The water on Earth may have come from the Solar S ...

                                               

Spaceship Earth

Spaceship Earth is a world view encouraging everyone on Earth to act as a harmonious crew working toward the greater good.

                                               

Structure of the Earth

The structure of the Earth is divided into layers. These layers are both physically and chemically different. The Earth has an outer solid layer called the crust, a highly viscous layer called the mantle, a liquid layer that is the outer part of ...

                                               

Friction

Friction is a force that acts to stop the movement of two touching things. The energy lost to friction is turned into sound and heat. Two kinds of friction are static and kinetic. Static friction is when the friction is strong enough to stop move ...

                                               

Fundamental force

There are four fundamental forces, sometimes called fundamental interactions. The forces are called fundamental because there is no simpler way for physicists to understand what the forces do or how they do it. They are called interactions becaus ...

                                               

Gravity

Gravity, or gravitation is one of the fundamental forces of the universe. In this article, we discuss it in three parts: Everyday sense: the force which causes objects to fall to the ground. Einsteins theory of general relativity: the role of gra ...

                                               

Lift (force)

The lift force, lifting force or simply lift is the sum of all the forces on a body that force it to move perpendicular to the direction of flow. The most common type of lift is that of a wing of an aircraft. But there are many other common uses ...

                                               

Potential energy

Potential energy is the stored or pent-up energy of an object. It is often contrasted with kinetic energy. In physics, potential energy is the energy which an object has due to its position in a force field or which a system has due to the way it ...

                                               

Strong interaction

The strong interaction or strong nuclear force is one of the four fundamental forces in physics. The other fundamental forces are electromagnetism, the weak interaction, and gravitation. They are called fundamental because there is no simpler way ...

                                               

Thrust

Thrust is a force or a push. When a system pushes or accelerates mass in one direction, there is a thrust just as large in the opposite direction. In math and physics, this is described by Isaac Newton’s second and third laws. Thrust is used to d ...

                                               

Van der Waals force

In chemistry, a van der Waals force are a type of intermolecular force. An intermolecular force is a relatively weak force that holds molecules together. Van der Waals forces are the weakest type of intermolecular force. They are named after the ...

                                               

Basin (geology)

A geological basin is a large low-lying area. It is often below sea level. Geological basins are one of the two most common places inland which collect sediment the other is lakes. The type of rocks which form there tell about the palaeoclimate o ...

                                               

Chevron (geology)

A chevron in geology is a sharply-folded rock formation. Chevron folds are regular folded beds with straight limbs and sharp hinges. Well developed, these folds produce a set of v-shaped beds. They develop in response to compressive stress. The a ...

                                               

Cliff

A cliff is a vertical or very steep natural wall of rock. Cliffs are common on coasts, in mountainous areas, escarpments and along rivers. Cliffs are usually formed by rock that is resistant to erosion and weathering. Sedimentary rocks most likel ...

                                               

Fluvial terrace

Fluvial terrace is an abandoned floodplain with a long, narrow stairs that is formed when the river flowed at a higher level than at present. Fluvial terrace consists of two parts, a tread, which is the flat surface at the upper side of fluvial t ...

                                               

Glacier

A glacier is a large body of ice and snow. It forms because the snow in an area does not all melt in summer. Each winter, more snow is added. The weight of all the snow creates pressure. This pressure turns the lower parts of the snow into ice. A ...

                                               

Ice sheet

An ice sheet is a large mass of glacier ice that covers an area of more than 50.000 square kilometres. It may also be called a continental glacier. There are two ice sheets in the world at the moment: in Antarctica and Greenland. Ice sheets are l ...

                                               

Pothole (landform)

Potholes are shallow bodies of water. They are filled with sediment. They are formed by retreating glaciers or by draining floodwaters. Potholes can be formed when big blocks of ice break off of glaciers. The blocks become covered by sediment the ...

                                               

Levee

A levee, or levee, is a raised bank of a river. A levee offers protection against floods. There are two types of levee: Riverdikes and seadikes. The seadike was invented in Holland in 1277. The first dikes were built in ancient Mesopotamia. The l ...

                                               

Oceanic trench

Ocean trenches have relatively steep sides falling to the ocean floor. Ocean trenches are typically caused when an oceanic crustal plate slides under a lighter continental plate or another oceanic plate. It is believed to work by density. Where o ...

                                               

Scarp (landform)

Scarp is a term in geology and geography with several similar meanings. The surface of the steep slope is called a scarp face. A scarp is a cliff or steep slope. The word is derived from the Italian scarpa, meaning shoe. A fault scarp is a steep ...

                                               

Table (landform)

A table is a high rock structure with a flat top. There are many different terms for this landform feature. The tuya is a structure formed by a subglacial under ice volcano. Lava erupts underneath an overlying glacier or ice sheet. It melts throu ...

                                               

Immortality

Immortality or eternal life is the idea of something which is alive that will stay alive forever. The opposite of immortality is mortality, which means a living thing can die. Right now, only a small number of living things are known to be immort ...

                                               

Life

Life is a concept in biology. It is about the characteristics, state, or mode that separates a living thing from dead matter. The word itself may refer to a living being or to the processes of which living things are a part. It may refer to the p ...

                                               

Life processes

Biology is the science that deals with living things. In general: Living organisms reproduce: they give birth to others of the same species, in order to continue their ancestral living. This is not true of all individual organisms. In eusocial or ...

Encyclopedic dictionary

Translation

home

...
Free and no ads
no need to download or install

Pino - logical board game which is based on tactics and strategy. In general this is a remix of chess, checkers and corners. The game develops imagination, concentration, teaches how to solve tasks, plan their own actions and of course to think logically. It does not matter how much pieces you have, the main thing is how they are placement!

online intellectual game →