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    DNA STRUCTURE DISCOVERED
    February 28, 1953 - Cambridge, MA, U.S.A.

    James Watson, from early on this Saturday, spent his time at the Cavendish Laboratory in Cambridge, shuffling cardboard cutout models of the molecules of the DNA bases: adenine (A), guanine (G), cytosine (C) and thymine(T). After a while, in a spark of ingenuity, he discovered their complementary pairing. He realized that A joined with T had a close resemblance to C joined with G, and that each pair could hold together with hydrogen bonds. Such pairs could also neatly fit like rungs meeting at right-angles between two anti-parallel helical sugar-phosphate backbones of DNA wound around a common axis. Such structure was consistent with the known X-ray diffraction pattern evidence. Each separated helix with its half of the pairs could form a template for reproducing the molecule. The secret of life!

    BALTIMORE & OHIO RAILROAD
    February 28, 1827 - Baltimore & Ohio USA

    The Baltimore & Ohio Railroad became the first U.S. railway chartered for the commercial transportation of freight and passengers. Investors hoped that a railroad would allow Baltimore, the second largest U.S. city at that time, to successfully compete with New York for western trade. New Yorkers were profiting from easy access to the Midwest via the Erie Canal.

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Website preview thumbnail for : The Interior Design Of A House Matters
The article is devoted to space arrangement in a house based on the personal and psychological approaches which feature comfort and harmony of the interior.
Article Content :It has been proven that the interior of the place we live in impacts upon our inner state and mood. Luckily, the time when the home interior was grounded on practicability and utility is a thing of the past, and here come a personal and a psychological approaches to the forefront. An apartment or a private house is gradually turning from the space we reside in into the place that reflects our inner world. The style is based on the two key factors - comfort and harmony. The psychological approach to the home interior includes two major functions. The most widespread and common is a harmonizing function when the decor of a room or the whole house reflects its owner's temperament, his perception of the outside world. The function of such a decor is to create the atmosphere of harmony and calm. Nontrivial solutions can hardly be appropriate. Such an approach actually assumes interior inactivity towards its owner. Because of optimal mixture of shades and structures of decoration materials, the interior is adapted to an owner and reflects his inner ego. The other function can be called stimulating. Such an approach presupposes a certain connection between the design and a human mind. Nowadays design plays an active part: it either favorably stresses owner's certain traits of character and temperament or it evens out unfavorable qualities. For example, such an interior can balance an impulsive choleric or encourage a melancholic who is inclined to depression. It is obvious that the popularity of feng-shui now is mostly determined by the variety of techniques available for organizing stimulating space. But feng-shui adherers state that favorable arrangement of space can magically impact not only on the minds of people who live in this space, but also the events in their lives, success in private and social life. It goes without saying that an ideal design should combine the two functions. But not every person can get a professional consultancy in the interior psychology or space planning from a master of feng-shui. Yet, one can learn and use the major aspects of personal approach to space arrangement on their own. The interior design starts with house planning, creating a certain inner space structure. As psychologists put it, such structuring is of paramount importance. It sets the rhythm of life in a house and often determines particular types of relationships that exist between house dwellers and between house dwellers and their guests. Though there are a lot of forms of house planning, there should be emphasized two major types: close and open interior.
Author Title :Согласование перепланировки

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