From the history of the underground business

Underground construction has always been a sign of high building skill. The great Leonardo da Vinci during a time of youth, offering services to some of the Italian lords, among his many skills singled out art secretly, quickly, safely carry out underground passages. This is not surprising. In an era of secret underground building was an important part of the activities of any architect, builder, engineer. Hidden underground connection of various objects reflect the complex functional-domestic, architectural and historical and social dependence in "ground" human existence. Architecture Read more [...]
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Unknown ancient structures

Modern archaeologists say that they know almost everything about our past. But all the new discoveries and finds more cause to doubt the statement. So every year there are reports on the findings of some unknown ancient buildings whose construction dates back to tens or even hundreds of thousands of years, but the most important thing is that even scientists from around the world can not answer the question of who built these unknown ancient structures. Category: Mystery stories Read more [...]
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Landmarks in Adygea – peers Pyramids

Worldwide remains unexplained phenomenon of ancient stone structures. This Hendzh Stone and the Egyptian pyramids, and the mysterious sculptures on Easter Island.Who built them and whyOf course there are many opinions, but which one is right? Such interesting architectural monuments is in Russia. In the Western Caucasus, is about 2,400 dolmens - stone structures very ancient culture. Scientists suggest that they are about 5000 years old. - Dolmen is a megalithic structures of antiquity, which served as burial crypts. They perform various rituals. As a rule, they were built by hundreds in Read more [...]
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The rover found a mysterious spherical structures

Record holder-survivor NASA Opportunity rover sent to Earth image that has puzzled scientists. In the photo section of the Martian surface can be seen dotted with numerous spherical structures. Martian bumps similar to those in the form of structures called "blueberries" and found rover in 2004. However, the newly discovered areas differ significantly from the "blueberries" in their composition. Currently Opportunity explores outcrop Kirkwood in Cape York on the western edge of the crater Endeavour. It was there and had discovered a mysterious sphere of 3 mm in diameter. Read more [...]
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Born out of crystals?

In its structure, the simplest biological systems and hydrocarbon crystals are remarkably similar. If such a mineral supplement protein components, we get a real protoorganizm. That's what started to see the beginning of the crystallization concept of the origin of life.From what and how life originated? Modern science gathers more data, specifying the nature of the transition from non-living to the living forms of matter. It becomes clear that the geochemical evolution of the Earth led inevitably to biogenic processes, to the origin of life. We have a good idea, both from simple chemical Read more [...]
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Scientists have calculated the age of the oldest wooden structure in the world

Research team from the Institute of forest growth at the University of Freiburg in Germany to precisely determine the age of four wells found in the Greater Leipzig. According to a report published in the scientific journal «PLoS ONE», structures were created by representatives first Central European agricultural civilization and are the oldest known wooden structures in the world. As established specialists, four wells since the early Neolithic built of oak. At the site have also been found from the bark of the vessels, the cords of bast fibers, and many ornate ceramic pots. Artifacts came Read more [...]
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Protective structures GO

Protective structures GO Read more [...]
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Civil defense structures (device and use) (textbook)

Civil defense structures (device and use) (textbook) Institute of Risk and Safety MI Kamyshanskii, GN Kirillov, NA Hook, VY Perevoshchikov, NV Tverdokhlebov. Pages: 320 The educational-methodical manual compiled and systematized extensive data on the device, purpose and operation of the main types of shelters and shelters, their use in time of peace for the benefit of the economy and public services. Are fully applicable from 1 April 2003, the rules of operation of protective structures of GO and a number of other jurisdictions. The manual is intended for use in teaching an educational center Read more [...]
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Engineering methods of protection

The basis of a set of measures for flood protection in river basins are now engineering activities that provide the most dramatic effect on the floods. Traditionally engineering methods of flood protection in the Russian Federation are: • redistribution of the high flow reservoir; • Gated dams; • increasing the capacity of the river bed; • increase marks protected area; • Water transfer; • Some special techniques to reduce flood risk. Construction of reservoirs in the river basin, as a rule, to multiple use of water resources and allows, subject to the relevant requirements in their Read more [...]
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Vail Resorts Blows Up “Smoke Shack”

Skiers and riders are all pink-slipped up aft officials at Breckenridge Ski Recourse blew up a logarithm finis workweek that was organism victimized to snitch a few tokes betwixt runs.Vail Resorts, which owns Breckenridge, manifestly distinct to destruct the elevated “fastball hut” subsequently Indoors Variant promulgated a account display that the cabin was victimised to secretly bullet marihuana. The skiing stoners would so try to survive consume the deal—much moderately unsuccessfully.A spokesman for Vail Resorts told KDVR-TV that the accompany has cypher permissiveness for Read more [...]
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Protective structures GO

Protective structures GO Read more [...]
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Waterworks. Hydraulic structures and their classification

For hydraulic structures (TTC) include waterfront facilities and natural dams (dams, locks, dams, irrigation systems, bridges, dams, canals, drainage, etc.), creating a difference in water levels before and after them for use of water resources and to fight against harmful effects of water. Dam - Artificial vodopodpornoe construction or natural (natural) barrier to water flow, creating a level difference in its upper and lower reach of the bed of the river is an important type of public water networks with culverts and other devices, created with her. Artificial dam created by man for their needs, Read more [...]
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Fire resistance of buildings and structures

Fire resistance of buildings and structures defined by a minimum fire rating of building structures and flammability of building materials. Fireproof materials - materials that are exposed to fire or high temperatures are not flammable, do not smolder and char (brick, asbestos, clay, bitumen, etc.). It is difficult to combustible materials - materials that are exposed to fire or high temperature hardly flammable, or charred and smoldering continue to burn in the presence of the fire (asphalt, cement fiberboard, wood, impregnated with antipyrine, felt soaked in clay mortar, and so on.). Flammable Read more [...]
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State of hydraulic structures in Russia

In the Russian Federation there are over 30 thousand reservoirs and hundreds of industrial waste storage and disposal. Of these, about 2,500 reservoirs and 400 drives have a capacity of more than 1 million cubic meters. Many of them are subject to high risk, since operated without maintenance for 50 years. The increase in the number and size of hydraulic structures causes the increasing importance of security problems of the population living below the waterfront and dams, and the prevention of major environmental disasters. Number of people living in areas of immediate threat to life and health Read more [...]
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Waterworks. Hydraulic structures and their classification

For hydraulic structures (TTC) include waterfront facilities and natural dams (dams, locks, dams, irrigation systems, bridges, dams, canals, drainage, etc.), creating a difference in water levels before and after them for use of water resources and to fight against harmful effects of water. Dam - Artificial vodopodpornoe construction or natural (natural) barrier to water flow, creating a level difference in its upper and lower reach of the bed of the river is an important type of public water networks with culverts and other devices, created with her. Artificial dam created by man for their needs, Read more [...]
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Fire resistance of buildings and structures

Fire resistance of buildings and structures defined by a minimum fire rating of building structures and flammability of building materials. Fireproof materials - materials that are exposed to fire or high temperatures are not flammable, do not smolder and char (brick, asbestos, clay, bitumen, etc.). It is difficult to combustible materials - materials that are exposed to fire or high temperature hardly flammable, or charred and smoldering continue to burn in the presence of the fire (asphalt, cement fiberboard, wood, impregnated with antipyrine, felt soaked in clay mortar, and so on.). Flammable Read more [...]
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Civil defense structures (device and use) (textbook)

Civil defense structures (device and use) (textbook) Institute of Risk and Safety MI Kamyshanskii, GN Kirillov, NA Hook, VY Perevoshchikov, NV Tverdokhlebov. Pages: 320 The educational-methodical manual compiled and systematized extensive data on the device, purpose and operation of the main types of shelters and shelters, their use in time of peace for the benefit of the economy and public services. Are fully applicable from 1 April 2003, the rules of operation of protective structures of GO and a number of other jurisdictions. The manual is intended for use in teaching an educational center Read more [...]
Tags: , , , , , , | Comments (0)

Protective structures GO

Protective structures GO Read more [...]
Tags: , , | Comments (0)

Civil defense structures (device and use) (textbook)

Civil defense structures (device and use) (textbook) Institute of Risk and Safety MI Kamyshanskii, GN Kirillov, NA Hook, VY Perevoshchikov, NV Tverdokhlebov. Pages: 320 The educational-methodical manual compiled and systematized extensive data on the device, purpose and operation of the main types of shelters and shelters, their use in time of peace for the benefit of the economy and public services. Are fully applicable from 1 April 2003, the rules of operation of protective structures of GO and a number of other jurisdictions. The manual is intended for use in teaching an educational center Read more [...]
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Collective Protection. Protective structures and types

By means of collective protection are defenses: shelters, fallout shelters (MDP) and a simple shelter. Shelter - protective structures hermetic type, the most reliable protection from damaging factors, to take refuge in them, people do not use funds personal protection of the skin and respiratory system. Sheltering asylum protect people in them the following destruction of factors: • from the damaging effects of nuclear weapons; • from the injurious effects of conventional weapons (man-made); • of bacteriological (biological) agents; • from toxic substances; • from catastrophic flooding. Fallout Read more [...]
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