Solar Schools

Temperature, pressure and density increase from edge to center of the Sun, where energy is released by thermonuclear reactions of hydrogen to helium conversion. Huge quantities of energy released from the nucleus are transported through the solar radiate quantum outwards by (photons) which, by emission and absorption repeated millions of times, finally get to an area close to the outside (with a thickness of about . one tenth of the solar radius), where energy is no longer transported by radiation but by convection (ie the movement of gas boiling sun).

Atmosphere based solar photosphere is formed – a thin layer of gas (about 300-400 km), but that is the deepest layer of the solar atmosphere can be observed which exudes total energy flux, ie the brightness of the sun L_ʘ. Solar phenomena are occurring in the photosphere.

Next to the outer layer, which is not seen with the naked eye only during total solar eclipses is the chromosphere. This occurs during the eclipse as a reddish circle around the black disc of the moon which obstructed the sun. The chromosphere appears gleaned, beaches, rash and some bumps.

Beyond the chromosphere lies the corona a long distance, which appears as a delicate white drapery, all directly observable during total solar eclipses. Here protrusions appear (similar to the chromosphere). The corona transition region is.

Mammals are a class of vertebrate animals that give birth to live young and feed them with milk. Mammals are the most developed and versatile vertebrates, warm-blooded animals are living in all walks of life. There are over 5800 species of mammals.
Their body is covered with hair, fur, spikes and plates, give birth to live young and feed them with milk produced by mothers, are warm-blooded animals, momentum average body temperature 36-38 degrees Celsius, have mammary glands under the skin, specialized dentition consists of teeth (canines, molars, and others. a.) and middle ear has three stays: hammer, anvil and stirrup.
Most mammals have body hair. Mammalian coat has several vital functions. Preserves body heat and protects the mammal from outside elements. Mammals, with a temperature of 36-39 ° Celsius, a temperature that is higher than that of the external environment, give warmth, especially in winter, when the external ambient temperature is much lower than the body. When the outside temperature but becomes almost as large as that of the body, the opposite phenomenon occurs some mammals, shedding, when hair falls, the temperature to accelerate disposal, provides protection against external factors mammal, such as radiation solar, hard surfaces, plants or animals that may affect mammal skin, hair / fur may provide better adaptation to external conditions mammal.