Tuesday, December 21, 2010
Sun thinner or be forced to amend evolutionary perspective.
<P> According to Swiss Researchers found that the sun's diameter smaller than the past, we believe that 0.04%. .If that is the case, then the previous structure and evolution of life on the point of view the sun had to be revised. .</ P> <P> this conclusion by the Davos World Radiation Center (World Radiation Centre) solar astronomical observatory scientists drawn. .Reduce the diameter of the Sun really mean? .Here it is necessary to elaborate a simple astronomy on the "diameter of the Sun" concept. .As the sun like other stars do not a hard surface, it is covered by the hot gas: about 3 / 4 the weight of the sun is hydrogen, about 1 / 4 helium, and other very small part of the material. .These gases have their own physical characteristics, can be used to determine the sun's surface in the end where it begins. .40's of last century, to determine solar surface is no fault of the atmosphere as the standard spectrum. .Accurate measurement of the diameter of the sun eclipse through the duration of Venus and Mercury around the sun drawn: 695,990 km (the equivalent of 109 Earth diameters). .Diameter of the Sun is not static, 15 years ago, astronomers discovered that the sun "when the fat as thin", about every 2 hours and 40 minutes to change, and the cycle is very stable. .</ P> <P> Swiss scientists believe the surface of particulate matter in the sun, or the hole is called convection, like the surface of boiling soup. .This shows that the sun's interior hot gas has a more outward release of energy, the sun will flow through this internal energy released into outer space. .60's of last century, scientists discovered the sun for 5 minutes acoustic vibration, the vibration wave is sent directly from within the sun outside the atmosphere the most. .Through years of tracking shows that 23 times the sun reduced the growth of the radius of 4-6 km, the average annual reduction of 1-2 km. .In the past, solar energy released in the active period of active than the minimum lot more, before the expansion of this phenomenon to explain the sun after the area is constantly increasing. .But now, the same observers found that the energy released in the volume is reduced. .Whether the increase is because the energy density of any unknown or there is energy? .Why suddenly the energy from the convection zone suddenly weak strong, the sun is forced to participate in the kernel of this process. .</ P> <P> Now, for the sun's core, the atmosphere and the external physical appearance of new ideas, the Swiss astronomers said, "Actually, we study the sun have to start from scratch." </ P> <P> < ./ P> <P> 2007 年 11 月 14 pm 3 am, Harbin, there were two in the sky "Sun." .Experts, this picture of the two solar halo is actually a special form, called a "mock", by the refraction caused by ice crystals in clouds is a normal atmospheric optical phenomena. .</ P> </ p>.
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