Archive for February, 2012

Notebooks Curies

February 28th, 2012

There are different ways of allocating polonium, in particular, electrochemical, when the metal polonium release on the platinum or gold cathode, and then separated by distillation. Polonium – the fusible metal and the relatively low boiling, the temperature of its melting and boiling points, respectively, 254 and 962 C. Fundamentals of chemistry is quite obvious that the present improved methods receipt and allocation of polonium were made possible only after a thorough study of the rare radioactive metal. And his connections, of course. Principles of Chemistry polonium laid by its discoverer. In one laboratory Notebooks Curies have a record made in 1898: "After the first treatment pitchblende polonium is precipitated with sulfuric acid is not complete and may be partially removed by washing with dilute SO4H2 (here and below, saved chemical indexing of the original). In contrast, the two treatments balance pitchblende and one treatment residue German ore give carbonates carbonates, and carbonate dissolved in acetic acid, SO4H2 completely precipitates the active substance. Later on this item learned much more.

Learned, in particular, that the elementary polonium – a silvery-white in color – exists in two allotropic modifications. Crystals one of them – low – have a cubic lattice, and another – high – orthorhombic. Phase transition from one form to another occurs at 36 C, but at room temperature polonium is high-temperature form. His warms your own radioactivity. In appearance similar to any polonium an ordinary metal. According ready fusibility – for lead and bismuth. On electrochemical properties – at precious metals.

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Queen Victoria

February 15th, 2012

FABRIC. The choice of material for the dress depends on the venue of the wedding and the season. Lightweight, thin fabrics such as chiffon georgette, linen and silk crepe are ideal for spring and summer, or for a wedding in a tropical climate. Autumn and winter weddings, held in locations with a northern climate, require dense tissues, such as brocade, velvet and wool crepe. Satin, taffeta and tulle are suitable for any time of year. Lace adds elegance wedding dresses. Antique lace can be used as a decoration of the new model dresses.

You can use the lace with Dress your mother or grandmother. Each tissue in its own way keeps the shape and drape. Tissues have different densities, and. to the bride feel comfortable, you need to pick up the fabric of the season. Some fabrics crease, others too airy, others are too tender. When choosing fabrics need to pay special attention to all these characteristics.

It is useful to reconcile its decision with the experts of wedding salon. As a rule, natural fiber fabrics and and manual work are more expensive than sinteticheskie.primenyaetsya in combination with or without lace to design the neckline. Creates the effect of nudity and at the same time covered. Indicate some features fabrics for wedding dresses. Atlas. A beautiful, traditional wedding fabric made from silk and mixed fibers, has a shiny surface (there are also matte versions). Velvet. Exquisite fabric for winter celebration, usually used for simple models with interesting inserts. Cotton is recommended. Batiste, voile, embroidery, peak. This thin summer fabrics of cotton or blended cotton fibers. Pure white colors, they are especially good for reception, hosted in the garden outdoors. Jersey. Knitted fabrics of silk or of mixed fibers. Draped in flowing folds. May have a matte or glossy surface. Crepe. Polyester or rayon, heavy or light, easy to drape crepe. Crepe de Chine. Woven fabrics of silk or blended fibers. Organza. Transparent material with a gleam. Expensive – from silk, cheaper – of mixed fibers, often with embroidery. Brocade, jacquard fabrics. Natural or artificial fabrics with printed patterns. More appropriate for winter weddings. Taft. Matter of silk or of mixed fibers. Pleasant to the touch, rustling fabric. Tulle. Smoky looking, romantic, used in several layers, as dancers in dresses. Charmeuse. Silk (recently encountered mixed fiber), soft, lightweight fabric, beautifully draped in folds. Chiffon. Silk (sometimes from mixed fibers), soft. lively, pleasant to the touch fabric. Usually used with lining. Very feminine and romantic, but expensive. COLOR. Absolutely no white. White color has many shades. It can be blue, pink, sirenevatym, yellow, etc. In the days of Queen Victoria's best flowers for a wedding dress is the color of ivory. Today, popular and dress light golden or silver color. Bride choose one that fits the color of her face and hair. It should be borne in mind that as tissue have the ability to reflect light (Atlas, luminous silk, taffeta), or absorb it (wet silk, velvet, marlevka). Plume. Long cables allow the bride to feel regal. Often they are separated from the dress, focusing on the waist during the ceremony and then removed or opened by. The choice of a suitable length loop is limited formalities and place.

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Ancient Philosophy

February 1st, 2012

The origins of the classical concept of consciousness lie in ancient philosophy, in which the consciousness of those engaged in mind. Mind is synonymous with the universal laws of harmony. Cosmic world order and reason in the context of ancient culture is transmitted Heraclitean notion of "logos". Logo is both a word and thought and the essence of things. Logos in philosophy – that is objectively given content, the embodiment of reason in the cosmos and at the same time, semantic ordering of life and consciousness. This is opposed to all the senseless and irresponsible in the world and man. The value of the human mind, the foundation of conscious human activity was determined by the degree of his of belonging to the logo. Thus, in the early stages of development of philosophy of strict division of the ideal and the material in the treatment of mental processes was not.

Consciousness, soul and other mental processes Ancient Greek thinkers are often identified with the material (air, movement of atoms). Becomes the dominant natural-philosophical interpretation of the mind. In Democritus, for example, the soul, like other things, consists of atoms having a round shape, so they are able to penetrate everywhere. It is fire and heat. The soul is material, corporeal. Its properties are determined by the nature and form of atoms, their location relative to each other. Soul dies with the body.

With the introduction of the soul as a special effect, dwell in the body of man and animal (and sometimes plants), and move it at bedtime or in the event of death, due to the doctrine of reincarnation – metempsychosis. Country developed by the religio-philosophical metempsychosis – India (ind. terms "samsara", "Karma"). In ancient Greece, some spread of these ideas is due pifagoreystvu, which was characteristic of the first form of metempsychosis: "Any soul can be put on any body." In Heraclitus is a kind of protest against such an interpretation: "The heroic death, the better share." For the first time in ancient philosophy the distinction between processes consciousness inherent in the human and material phenomena, was scheduled Sophists. On the uniqueness of acts of consciousness compared to natural processes indicates Socrates. The objective content of acts of consciousness in Plato placed in special world of ideas, opposed to all the material, is unreasonable. The soul of man, according to Plato, as a special supernatural intelligent entity exists prior to man and beyond. The human body as separate things, is temporary incarnation, the seat of eternal souls. Plato, like other thinkers of antiquity, the cosmic mind, is synonymous with the universal laws and order. Just as for the whole cosmos disembodied mind is the prime mover, the source of harmony, each individual soul is the mind too, Plato active principle governing human behavior.

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