Sunday, December 6, 2009

Want to be a good chemist - write chemistry essay topics by Adam

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It is difficult to name an exact time of occurrence and the construction of winter gardens and greenhouses. It is known that in the Roman houses decorated atriums flowering plants in hanging pots, and for the cultivation of vegetables and exotic plants the Romans built a greenhouse, covered with mica, and heated in the winter warmth of humus. In the northern countries of the European continent breeding of warmth-loving plants were not in the open ground. And at the beginning of XVII century in English country houses and estates began to appear the first prototypes of the greenhouses and conservatories - glass rooms adapted for the cultivation of citrus plants and the animals brought from warmer climatic zones. Breeding of exotic plants require special heating system, widely spread in Europe in the late XVII century. One of these systems is a spiral chimneys, built in brick walls. A simpler way of heating the greenhouse or conservatory implies that the large room floor holes into which fit a hot coal. The system of water heating greenhouses and conservatories was first developed
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and implemented at the beginning of XIX century in the Netherlands. And in 1802 in England was first used air heating greenhouses - bark. Packed in a long trough, it is in decay heat and humidify the air in greenhouses for growing orchids and other tropical plants. In the future, many of these systems were improved and adapted for the breeding of warmth-loving plants in the home. Glass roofs to capture solar rays have appeared in England in 1717 and eventually turned into such structures as the "crystal" Paxton's Palace, built in 1801. It is worth noting that the winter gardens and greenhouses were popular not only in Western Europe, but also in Russia. Already in the XVIII century the monks of the Savior Transfiguration Solovetsky, Valaam and other northern monasteries cultivated in rocky heated greenhouses exotic plants, despite the harsh climate and short light-year. Enough known greenhouses with winter gardens in Russian manors Kuskovo, Riverlands, Pavlovsk, Arkhangelsk, etc.

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