The concept of "range" is often found when it comes to military tests, nuclear weapons, artillery fire and so on. In the modern world, this term has a fairly wide use, and its meaning goes beyond the military theme.
What is a landfill?
This word is translated from Greek as "polygon". In the most common meaning of the word, a landfill is a piece of land or sea specially equipped with any structure. Its territory usually has the shape of an irregular polygon, which explains its name. The landfill area can be huge - hundreds of square kilometers. Along the perimeter, it usually has special restrictions that prevent unauthorized entry. The landfill may include not only a piece of land, but also water and air space.
For the placement of landfills choose territories unsuitable for business activities: deserts, steppes, tundra. This minimizes economic damage. Flights may be restricted in the airspace of the training ground.
Polygon Classification
Polygons come in various types. By affiliation, they are divided into public and private.
By purpose, landfills are military, nuclear, research, testing, factory, civil, educational, trash.
Most often, a training ground is a territory equipped with national governments for military purposes for conducting military exercises, artillery tests, aviation flights, and bombing. Such landfills are often equipped with military camps, checkpoints, fenced with barbed wire, etc.
At test sites are testing weapons, military equipment, devices.
A factory test site is a place where tests are carried out of machinery and equipment manufactured by the manufacturer.
At civilian training grounds, special platforms can be equipped for educational or recreational purposes, for example, training grounds for role-playing games.
Nuclear Test Site
The first atomic bomb tests were conducted in 1945 in Trinity, New Mexico. Since then, many countries have begun to equip territories for such trials.
A nuclear test site is an area designed to test nuclear weapons.
A few famous, but now abandoned landfills of the world:
- Totsky training ground (USSR);
- Enivetok (rep. Marshall Islands);
- Lobnor Lake (China);
- Semipalatinsk test site (USSR, Kazakhstan);
- Nevada landfill;
- Pungeri (North Korea);
- New Earth (Russia).
Conducting nuclear tests cause terrible harm to the environment. Radiation pollutes vast territories far beyond polygons. Land becomes unsuitable for livestock and crop production. In addition, radioactive contamination, spreading by air, leads to the fallout of radioactive fallout. Once in the atmosphere, radioactive waste causes great harm to human health. Underwater tests of atomic bombs caused significant damage to the ecology of the seas.
Despite this, nuclear testing sites are a popular destination for extreme tourism. People are not stopped by the radioactive threat, and they often go to the former training grounds to get acquainted with the history of the tests and look at the craters left from the explosions.
Landfill
Human activity contributes to the appearance of a large amount of household waste. Solid domestic waste landfill is a facility designed for the processing and disposal of municipal solid waste. MSW usually includes plastic waste, glass, rubber, bones, wood, metals.
Most often, landfills are in the form of a foundation pit and are located far from residential areas, in order to avoid damage to human health. To ensure environmental safety, landfills are located away from green spaces, ponds and groundwater.
In Russia, the situation with landfills is unfavorable. Utilization of household waste requires a significant increase in the number of processing equipment. In addition, the system for the proper separation of waste has not yet been debugged in Russia: basically, garbage is dumped into one pile.
The largest landfills are located in:
- Chittatong (Bangladesh);
- New York (USA);
- Agbogbloลกi (Havana);
- Fresh Kills (USA);
- Puente Hills (USA).
Polygon in mathematics
The concept of a polygon is found in the exact sciences only in a different meaning. The word polygon can be used to denote a polygon in geometry. Also, the polygon can take the form of a graph. A frequency polygon and a relative frequency polygon is a curved line connecting the points of a graph representing probability densities.
Thus, the landfill is a multi-valued term used in many fields of activity. Mostly this concept is used to refer to limited places or territories equipped for various needs.