Assignment 4- plasma, magnetism & space.

On week 4 we learned about Plasma and magnetism with Dr. Walter Gekelman.  We toured the his plasma lab so I could get a better understanding of overall concepts of magnetism. As I learn, it is the force by magnet when they attract or repel each other. And it is caused by the motion of electric charges.  Also, we learned about Maxwell's Equation which is about the foundation of classical electromagnetism, and electric circuits. He gave us easy explanation, but I honestly still confused to define those equations. I was very appreciate to Dr. Walter that he showed us lots of physical magnetism experiences so that I could get a better understanding. Related to Maxwell's equation, I searched up some of the other equations and researched more about it. Another theory that I found out is about Gauss's law. According to Wikipedia, it is the relationship between a static electric field and electric charges. It is also stated that electric  charges have no magnetic analogues and no north and south magnetic poles exist in isolation. I remember that Dr. Walter showed us an iron power and showed the logic of the Gauss's law. I experienced it in middle school as i remembered but I did not exactly understand about the theory at that time. But through out this time I can have a better and clear understanding of magnetism logic. Moreover, the most interesting part that I heard from the lecture is that connection between aurora and magnetic field. I also searched up more about the relationship and here is the facts that I learned more. Auroras in the southern hemisphere are known as the southern lights, or aurora australis.  Both the northern light and the southern lights are polar light because they occur near Earth's magnetic poles. It is happened when charged particles which are electrons and protons collide with gases in Earth's upper atmosphere. It is also produced when those collisions produce tiny flashes that fill the sky with colorful light.  Moreover, earth's magnetic field steers the charged particle toward the poles. The shape of Earth's magnetic field creates two auroral ovals above the North and South Magnetic Poles. It is why we can see the aurora almost every night in the northern sky, from August to May.  

Also, on the Thursday class, I realized that average people has about 70,000 thoughts per day. It was shocked that I even had the thought that much. Also, we had a time to write all about our thoughts on the paper and I filled out whole paper and even had more thought to write on. I was a great chance that I can organize my thought and know about myself more. Furthermore, we wrote all about the things that we learned and experienced on the board. I forgot some of the things but throughout this chance, it reminded me all the things happened during the week4. I experienced lots of amazing things through great professors and facilities. I think my favorite parts of the class was learning about SCOBY part!