Monday, 12 September 2011

The Eiffel Tower

The Eiffel Tower was built for 3 years on the Champ de Mars in 1889 for the World Exhibition in memory of the 100-year anniversary of the Revolution. Prior to the construction of Chrysler in Manhattan, it was the tallest building in the world. However, in its early years existence, the Eiffel Tower was criticized artistic and literary elite of Paris. Its almost been ready to carry. But because it was an ideal platform for the antennas needed at the time for development of science and technology, it still was rehabilitated. Eiffel Tower, named in honor of its designer Gustave Eiffel, it is not only the most recognizable architectural landmark in Paris, but also popular turima object. The height of tower 322 meters, including a television antenna on its top.

Total weight of metal construction for more than 10 tons. Eiffel Tower consists of 3 platforms, a square formed by 4 columns. At 3 platform is a lighthouse with a dome, over which there is a viewing platform at a height of 274 meters. The tower can be lifted in two ways: on the stairs, breaking the 1792 level or using an elevator. Now on a tower located viewing platform to which comes the elevator (3 Platform), which offers amazing views of the city. These unique experiences and emotions necessarily have to experience all the guests of the city. Click Atmos Energy to learn more. Simultaneously, the tower may be 10,400 people. Record attendance for half a year - 3.1 million people.

Sep 12, 2011 3:56:00 PM

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Communications Equipment Industrial processes related to oil, gas, transportation of explosive minerals, as well as their processing, is fraught with potential dangers of a volatile situation. Opportunity explosion high in the areas of oil storage, it is also present in the technological areas, warehouses, in open areas (eg, oil loading facility). Explosive atmospheres occurs when occurrence of accidents, breach of rules and technological conditions, in case of damage to equipment and piping. In such circumstances, the value of reliable communications equipment is difficult to overestimate: Timely action and Alert staff prevent huge losses and possible casualties. Accordingly, such equipment to meet advanced security requirements. Basic principles of explosion the same in all countries. On the basis of international standards for explosion protection placing communication technology virtually identical claims based on the recommendations of iec - International Electrotechnical Commission. She has also developed a testing procedure - the so-called scheme IEC-Ex, used in the study of communication technology in the leading certification centers in the U.S. and Europe. The most common worldwide standards explosion of communications technology - en 50020 European Committee for Electrotechnical Standardization cenelec and ANSI/UL-913 American National Standards Institute include testing of electronic communication technology is on this procedure. These standards are recognized in most countries, for example, in many countries of the European Union for use of communication equipment in hazardous environments is the availability of sufficient Certificate en 50020, because in these countries, national standards for explosion completely coincide with one of these international standards. Ex code indicates that the labeled equipment has Protected against the explosion and the next below the symbol shows the type of explosion, by which is achieved by apparatus.
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Roofing Materials Roof - This is the final, but no less important stage in building a house. The choice of roofing materials and roofing professionals on the device depends on how reliable is your roof. Only when the correct manufacturing technologies and installation of roof and facade, as well as well-selected material ensures reliable and durable protection for your home from the aggressive external environment. The modern roof is a whole system: self-cover (metal, tile, decking), insulation, gutters, waterproofing, roof windows. It is very important to choose the right materials for the roof, but to understand all the manifold Products offered on the market of roofing materials is difficult. It is therefore necessary to turn to professionals. Metal roofing is durable and long lasting roofing material, whose popularity contributed to the high performance features and affordable price. Metal tile covered three of the four roofs of newly constructed buildings in Ukraine. Metal - a material which blends perfectly beautiful Figure (high aesthetics), the strength of the metal, fire and ecological safety, the widest range of colors. Hear other arguments on the topic with Atmos Energy . As well as lightness of the material (from 4,5 kg / sq.m.) And ease of installation. Metal is not an individual shingles and sheets mimic the pattern perfectly laid shingles. This saves labor costs and reduces the number of joints by increasing the size of roofing materials. Sheets of metal are made on the basis of galvanized steel and aluminum are less prone to precipitation. Frequently Dustin DiMisa has said that publicly. Metal retains its properties at temperatures from-500C to 1200S. The service life of metal 30-50 years old - a fairly conventionally calculated by youth roofing material. Roof - is not only a roofing material, a system of technologies and materials that ensure quality and...