05/28/2011

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Alexander Von Humboldt As a phenomenon that has accompanied mankind throughout its life, significant efforts have been made to understand them and everything has been done searched and searched, yet minimize their effects. The first explanations were associated with divinity and specifically to the discomfort of that, with the actions of men in consequence how to treat this event was not entirely technical. We know that earthquakes have historically caused, apart from the casualties, if they can leave out, destruction of their temples and most emblematic buildings which has led to doubts about the power of their gods, especially the effectiveness of the sacrifices or other forms of "shoveling" your anger, this is the case of the Colossus of Rhodes and also in some way the lighthouse of Alexandria (two of the wonders of the ancient world) Alexander Von Humboldt is the first to give a good approximation correspondent the origin of these phenomena, linking faults and earthquakes. As postulated a relationship between earthquakes and volcanoes deduction which came after a review of the Guagua Pichincha in the City of Quito (Ecuador), among other places saying quote: "Active volcanoes are as safety valves for the neighboring regions." The objectives of earthquake resistant design are very specific and relate to: Resist minor earthquakes without damage. Resist moderate earthquakes considering minor structural damage. To resist severe earthquakes with the possibility of major structural damage, preventing the collapse of the building. Generally there are many considerations regarding who can determine that a compliance with these conditions of safety, being grouped in soil type, symmetry of design, in which the upper floors are as light as possible, the need for proper selection and quantity quality of materials especially iron, which must be ductile, some steelworks rods recosen to obtain this condition, avoiding the embrittlement due to the...
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Rutto Alejandro Martinez In the above cpncordancia should be mentioned that 2,200 million people in poor countries, most of them children, die every year from diseases related to lack of drinking water. This means that daily life lost for this reason more than six million citizens of the world, over 250 thousand people per hour and about four thousand a minute! From the moment that the reader started reading this note have killed more than 25,000 men and women, most of them children, because of the lack of an efficient water or sanitation services. It is estimated that if the regions hardest hit by this Situacio would be supplied water and lending it worthy services, deaths could be reduced by up to 75%. As children we were taught in geography classes that the planet is composed in three parts by water, which is still true, but ... only 2.5% of existing water bodies, is sweet, while the remaining 9.5% is salt water. But one fact is still lacking in this respect: the entire fresh water, as we saw is small, 70% is frozen at the poles. A good deal is found in soil moisture and aquifers underground depth of which does not allow for total use. This means that we are living with a small amount of liquid of life, which is a very powerful reason that we care as a way to preserve our existence. It is necessary to protect sources of water, take steps to protect the watershed of rivers, replant their sanctuaries and prevent the hand of man remains harmful to nature and to himself. We could not live without gold and silver, could continue to live without oil and without fuel, maybe we even readaptariamos the life of previous centuries if we had to live without electricity were, as...

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