Rain causes polar aurora over Antarctica appears strange.

<P Align=center> </ P> <P align=center> over the Antarctic gorgeous Aurora </ P> <P> According to foreign media reports, scientists in July 2004 captured by a satellite .very beautiful Antarctic aurora. .At first, people were not aware of any special about it. .However, the latest analysis has shown, in July 2004 that the formation mechanism of auroral field is very different. .Scientists said that the beautiful aurora triggered That is called "Polar Rain" phenomenon. .</ P> <P> Under normal circumstances, produce the aurora is due to the high energy from the atmosphere outside the particles (electrons and protons) hit the upper atmosphere of the Atoms. .This interaction often occurs in the Earth's magnetic poles around the area. .Now know, as part of the solar wind reaches the Earth of charged particles in the vicinity, he was captured by Earth's magnetic field and make it fall toward the poles. .Them with oxygen and nitrogen atoms in the collision, blow away electrons to become excited state of the ions, these ion emission of different wavelengths of radiation, which produce red, green or blue color of the aurora and other characteristics of color. .</ P> <P> scientists explained that, in the north and south polar regions to see a "Polar Rain" phenomenon: some weak low-energy electron flow (intensity less than 100 electron volts) will be the case in the absence of solar wind into the atmosphere. .Because low-energy, they do not induce the phenomenon we usually refer to the aurora. .</ P> <P> However, researchers are using ultraviolet light by the camera in the satellite observations on a unique aurora. .July 2004, they recorded a high energy anomaly "polar rain." .Although we can not directly see the aurora with the naked eye, but the satellite data have shown that returns, in the Antarctic over the emergence of a very spectacular aurora. .The researchers believe that led to the aurora occurs because it is so-called "polar rain." .Which led to "Polar Rain" reasons for the enhancement of energy the sun may be unusual activity. .</ P> <P> scientists view the research from "Polar Rain" Aurora has raised a very important sense: that the formation mechanism of the aurora more "alternative", but there is also more particularly the region (in the magnetic poles .just above.) .In addition, their velocity is very fast, up to 200 meters per second. .Experts believe that, after many of the aurora observed phenomenon may have been a "Polar Rain" induced. .Scientists need to do is the next record from the ground to the "polar rain" caused by the aurora. .</ P> <P> career: the rich and thirty and thirty negative! .Business, you need to look more courage to talk about sports marketing: Legend, finally the hang of it? Chief of sanitation workers so compassionate wife five-star Grand Hotel can become much drama catalog company's financial department in 2007 concluded the top ten most absurd experiment of human capital of Romania serious transit congestion .French chocolate diet priority drinking water cold and the Shanghai property market is a thorough master developer cover plate Dafa Buffett's contrarian investment strategy! .Internet business: less talk and more like the concept of hegemony to make money in China: Wal-Mart, Carrefour, the leading Why? Indonesian man terrified doctor: half like half the girls as a tree limb surgery in India successfully removed eight extra limbs and the Chinese audience interpretation of media change in 10 years: .audience in the third quarter of 2007 top ten drift cars Wonder luxury car wedding of NASDAQ-listed inventory of health food developers and banks to raise interest rates often benefit </ P> </ p>.