Monday, February 18, 2019
The Aurora Borealis Essay -- physics space
The Aurora Borealis is made when storms on the the lie form solar winds, or large streams of charged particles streaming toward the earth.These streams could kick in upward of ten million megawatts of electrical power. That is enough power to devolve up Los Angeles. It generally takes about three days for these streams of particles to reach the earths f number atmosphere, or ionosphere. When these charged particles hit the earths atmosphere, they excite the atoms contained in the atmosphere. These wound up atoms allow a higher energy state that usual and so compliments to get back to a more normal energy state. The excited atoms give mutilate excess energy in the form of heat, or the case of the Aurora Borealis, electric discharge. The trillions of excited atoms give off enough clean-living so that we can see the light from where we live on the ground, 43-200 miles in a higher place us.The Aurora Borealis is most often seen in a striking dark-green color, but it also occa sionally shows off its some(prenominal) colors ranging from rose-cheeked to pink, blue to purple, dark to light. The reason that the aurora is seen in so some colors is that our atmosphere is made up of many different compounds the like Oxygen and Nitrogen. When the charged particles that come from the sun hit the atoms and molecules of the Earths atmosphere, they excite those atoms, gift off light. Different atoms give off different colors of the spectrum when they be excited. A familiar example is the Neon lights that we see on many business signs in our modern world. The Neon lights contain the gas Neon. These lights generate electricity run through them to excite the Neon gas. When the Neon is excited, it gives off a brilliant red-orange color. The Neon lights are the same idea as the aurora, only on a lot smaller scale.Different ga... ... as a story from Scotland, tell of battles in the sky with showers of red blood. A story from the Northern Hebrides attributes the aur ora to supernatural beings called Blue Men. During an active unwrap of the aurora the Blue Men are called the Merry Dancers also cognise as na fir chlis (Gaelic for quick, nimble men). When the aurora moves rapidly, there is believed to be a battle going on between clans. The red light was attributed the the blood spilled during these battles.In Norse mythology, there is reference to Bifrost, or a bridge to the sky built by the Gods. This bridges was said to be on fire to keep the Giants out. In Medieval art, the aurora was dipicted as candles in the sky. In Greenland, it was said that the aurora represented the dead compete with the head of a walrus. No matter what the tale, they are all raise and are worthy of reading.
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