It is important before giving a definition of the word troposphere to discover its etymological origin. In this sense, we must mention that the word is derived from the Greek and is formed from the sum of two different nouns: The word "trophos", which can be translated as "spin"; and the noun "sphaîra", which is synonymous with "sphere". The troposphere is the layer of the atmosphere closest to the earth. It begins at ground level and rises to a height of 7 to 20 kilometers above sea level. The largest amount of mass in the atmosphere is located in this layer. The states and changes of climate and weather as well as meteorological phenomena that affect the earth take place in this important layer, the air we find in the place is hot and the pressure and density of the air are much lower. This is where we see airplanes, helicopters and all those means of transport that use air to go from one place to another.
Amazing sculptor, painter and architect from Italy, Gian Lorenzo Bernini was an amazing artist who mastered Roman art during the 17th century. He challenged all the artistic traditions that prevailed in contemporary times under the care and protection of cardinals and popes. His works, projects and art works, both in sculpture and architecture, are presented with an innumerable number of innovative themes, different uses of forms and combinations.
Alexander the Third of Macedonia, better known in the world as Alexander the Great, was a Macedonian king from 336 B.C. until the day he died. A man of great intellectual and military training by Aristotle. Dedicated to imposing authority he possessed before the Macedonian people, who, when Philip died, took advantage of the situation and made a whole revolution. The mark that Alexander the Great left throughout history is absolutely incredible, taking into account his heroic achievements and great personality. His words, always correct, made him grow in such a way that he was even able to move entire armies to satisfy his ambition. Conqueror of territories, he was in charge of spreading Greek culture and fusing cultures, he implanted language, art, politics and religion, in other words, he changed the whole world in his time.
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