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Painting in some old manuals is quite often defined as drawing by paints that specifies in the basic sign of painting distinguishing it from other kinds of the fine arts, namely of work by paints, i.e. with color.
Color problems under various points of view are learned at the present in variety of sciences and scientific disciplines. The physics studies the power nature of color, the physiology – perception process by human eye of waves of certain length and their transformation into color, psychology – problems of perception of color and its influence on mentality, the biology – value and color role in ability to live of lively and vegetative organisms, the mathematician develops techniques of measurement of color.
In the theory of painting art and picturesque practice are studied mainly aesthetic properties of color, law of creation of color system, color of picture, various receptions of use of contrasts, parity of color with other components of the art form, such, as line, plastic arts, treatment of light and shade, color role in composition picturesque work.
The main criteria of estimation of color and color combinations in art practice of the fine arts are their beauty, conformity as to natural color and the color combinations existing actually, and creative plan of the artist.
Laws of coloristic combinations in painting are processed by creative consciousness of the artist of certain laws of the objective validity.
Color harmony, color, the contrasts existing actually, the artist in own way perceives, generalizes, interprets according to creative plan, and sometimes and considerably transforms, reconsiders.
The knowledge of scientific representations of color can’t replace, of course, necessity of studying by the artist of the nature in all its variety and complexity of displays of forms and colors, but can essentially enrich art practice as it was repeatedly observed in the history of arts.
Scientific knowledge of color is necessary for the artist and for development of technology of painting. The picture paint layer is perceived by the spectator thanks to variety of physical processes – to reflection, refraction, absorption, dispersion, radiation, etc.
Conditions of exposition of products of painting also demand the accounting of many optical laws.
In the fine arts, and particulars and in painting, in each specific case – the phenomenon unique, and it is impossible to reduce art creativity to the scheme. The artist creates not under recipes, almost each artist has creative technique, creative principles, the secrets of skill quite often based on intuition. In creative process rather important role belongs to intuition. In materialistic understanding of intuition, to sudden “inspiration” of the artist precedes the job of consciousness hidden from the author, organizing and subordinating certain laws external, apparently, chaotic impressions.
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What does color represent from the point of view of physics and how this knowledge is applied in fine arts practice?
All variety of world around we see thanks to the light and sight. Various heated objects – the sun, lamp filament, the heated metal, gases, oil lamp flame, fire etc., which are named light primary sources, radiate the light. The structure of light shining various subjects, appreciably influences on visible by the person color of these subjects.
Under the influence of light waves, with fluctuations of different frequency, the person has various light and color sensations. Light extends waves of certain length. The length of wave is distance on which extends fluctuation for one period, i.e. for time necessary for one full wave. The length of light wave is designated by the Greek letter λ, and measured in micrometers. (Micron).
The visible spectrum, i.e. the waveband perceived by the person, is limited by waves in length approximately 396-760 microns. Some researchers consider that the eye of the person is capable to feel light beams in limits of 802-950 microns, however sensitivity of eye to extreme visible beams in hundreds times are less, than to light beams with length of wave 396-760 microns.
Direct light of primary sources (the Sun, etc.) falls on surrounding subjects and the objects, thus opaque subjects absorb part of beams, and reflect part of them. Color of opaque subject is defined by light, which from it is reflected. At transparent subjects or having in the structure gleams or micropores (for example, fabrics) part of beams is reflected, part is absorbed also the part is passed. As a result, all subjects and objects become source of reflected light, and enough considerable, as for example, the Moon, the Earth, heavenly bodies, etc.
Thus, all subjects and objects in the nature are illuminated by both direct, and reflected light.
Newton has formulated for the first time thought on difficult structure of white sunlight. If to put glass of trihedral prism on way of solar beam, instead of white light beam there will be color strip from the various colors, named spectrum. Colors in spectrum settle down in certain order: red, orange, yellow, green, blue, and dark blue, violet. Each color gradually, without sharp borders, by means of set of intermediate colors passes in other color. The same pure, bright, spectral colors can be seen in rainbow.
The colors that differ by different chromaticity (red, orange, yellow, green, blue, dark blue, violet) are named chromatic (color).
In spectrum there are no white, grey colors, and also black color. These colors, which are absent in spectrum, it is possible to distinguish only on lightness. Group of white, grey and black colors are named achromatic (colorless).
Chromatic colors differ from each other to three signs: to color tone, saturation and lightness.
Learn more about colors and your paintings will become better! Good luck!
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Luckily we live in the world of high technologies. It wouldn’t be wise not to take advantage of this really unique opportunity. Current Internet technologies allow us to break the borders and look for modern abstract art paintings all over the planet. Go to various social networks, check relevant topics, participate in discussions in niche forums. All this will help you be well informed about the events concerning your hobby. And, sign up for the RSS on this blog not to miss new publications on the topic.
Child night sweating
Many children and also newborns ca also suffer with night sweating and this can be a real problem for mother that is why I decided to refer to this subject in the given article.
One of the reasons of night sweating at children is apnea. Why is that so dangerous at newborns?
The most dangerous kind of illness is apnea at children. This condition demands acceptance of urgent measures as leads to a syndrome of sudden mors of the child. It arises at newborns usually against chronic diseases or congenital anomalies. Allocate two types of night apnea:
Central apnea occurs when thorax muscles are not reduced, as do not receive impulses from the central nervous system. The reasons of apnea of this kind are: a prematurity, an anemia, an infection of respiratory tracts, brain traumas, epilepsy, some medicines, prescribed mothers.
Obstructive аpnea is the fall of respiratory tracts arising because of: too big tongue at newborns (macroglossia), the enlarged tonsils, at a labium leporium, after traumas of a guttural muscle, at a spastic stricture of muscles larynxes (laryngospasm).
At disturbances of breath the child becomes flaccid, acyanotic.
Diagnostics of apnea consists not only in survey of respiratory tracts, data gathering concerning attacks breath disturbances, but also in carrying out: the analysis of gas structure of a blood, skull ultrasonic, an electrocardiogram during a dream, a thorax X-ray.
If the child suffers from the raise night sweating it is possible to adhere to the following rules that I am sure will help you to overcome night sweating, of course if you would follow them.
1. Daily in the morning and before sleep wash feet of the child.
2. Get socks from a clap and do not forget to change it every day.
3. Feet should be put only in qualitative footwear from natural materials.
4. The footwear should not adjoin to a foot densely.
5. Whenever it s possible, allow the child to walk barefoot.
6. Do trays with broths of grasses.
7. Use Talcum or special medical deodorants which you can buy in any drug store for children. Use it at night sweating
Unpleasant symptom is the sweating at night which often enough disturbs both men, and women and children. One of the most widespread reasons of a night sweating at women is the period of a menopause or other hormonal changes and apnea. Whereas the night sweating at men can be simple detoxication of an organism or reaction of an organism to various climatic factors that does not demand any serious treatment. Medical deodorants will surely help in this case to warn a sweating and prevent and also the deodorants can which operate within 24 hours at night.
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Night sweats can be due to Andropause, medical conditions, drugs, one may be a hot sleeper. Check out this site – lots of info about how to avoid night sweats all together and purchase a remedy for it.
Also we would advise you to subscribe to the RSS on this blog because in this way you will keep abreast of all the latest remedies for the subject and other important issues.
One of the reasons of the raised sweating can be apnea.
Apnea: the reasons and symptoms:
What is it?
Apnea is a full or partial fall of tissues of the top of respiratory tracts. Any person is relaxed in the sleep; lose a tonus of a muscle of a pharynx. But some people have a collapse of respiratory tracts when under the pressure of air they are completely blocked. The syndrome is bound to depression of level of oxygen in a blood and the breath termination.
Night apnea occurs approximately at 4 % of men and 2 % of women. It will be natural to assume that the reasons of it are bound to anatomic features of respiratory tracts. To them concern: a long uvula, a curve septum of a nose, a narrow nasopharynx since a birth, occlusion disturbance. As a result of other illnesses at the person palatine tonsils can be enlarged or polyps in a nose are formed that also causes of this syndrome.
It promotes a syndrome of excess weight as adiposity narrows respiratory tracts. Weakening of muscles can occur at strong weariness, the alcohol use, at ageing and reception of soporific. People with illnesses of a thyroid gland, heart and the woman after a menopause are subject to development of apnea.
It s possible to suspect a syndrome of obstructive apnea at:
— High pressure occurrence;
— Day drowsiness;
— A bad dream;
— A night sweating; — Frequent circulation in a toilet at night;
— Headaches in the mornings;
— Tachycardia.
It is necessary to remember that a snore and apnea often accompany each other as one is implication of another. If the native specify to you in a loud snore and respiratory standstill in the sleep it is necessary to take measures for treatment apnea.
Besides, that apnea interrupts sleep, doing its superficial, it causes drowsiness in the afternoon, and it raises risk of development of dangerous illnesses: a hypertonic, a heart failure, an arrhythmia. The infarct, a stroke and even mors in the sleep can be a result of a long and serious syndrome of obstructive apnea. Besides, people feel irritable because of night apnea, become inclined to depressions and excessive night sweating.
Diagnostics of it consists in carrying out few medical analyses. It allows estimating work of all important systems of an organism during a dream. To learn about that of how to treat apnea it is possible also in articles about snore and night sweating.
That is why it is very important to make inspection at the doctor if you are suffering with the raised night sweating and find out the exact reason of it, I am not telling that the reason of night sweating can be apnea, it can be anything else, but any way you should be always aware of it.
Night sweats can be caused by menopause, medical conditions, drugs, one may be just a hot sleeper. Visit this site – much info about how to avoid night sweats all together and buy a remedy for it.
Also we would recommend you to sign up for the RSS feed on this blog because in this way you will keep track of all the latest remedies for the subject and other related issues.
