Saturday, September 20, 2014

Earth's Impeding Magnetic Flip

Glatzmeier, Gary A., and Paul H. Roberts. "Earth's Impending Magnetic Flip." Scientific American n.d.: 29. Print.


            The Earth’s magnetic poles have flipped many times in the past, but never in recorded history. Nobody really understands how or why the poles flip, but geophysicists know that they do based on magnetic information in certain rocks. Now new data from the European Space Agency’s “Swarm” satellites may mean a flip is happening very soon.

           According to the Swarm’s magnetometers, the earth’s magnetic field is weakening! Apparently the field gets 5 percent weaker every ten years. The good news is, this weakening may not lead to a full magnetic flip. The bad news, however, is that the weakening earth’s magnetic field will let in the sun’s deadly gamma rays. Also, a magnetic partial flip would definitely interfere with communications and power lines.


         In conclusion, although the earth’s magnetic field may not flip after all, something bad will happen because of the field weakening.

5 comments:

  1. I liked that you made connections to the past when you mentioned that earths polls have shifted in the past. I also like that you gave a percentage of how much the field is weakening over time. Another thing i liked is that you told us what would happen if there was a flip.But some things you could have done better were you could have talked about what happened when the polls shifted in the past and you could have made it a little longer and gone into a little more detail. One thing that really stood out to me was that the gamma rays could leak into the atmosphere and damage the earth.

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  2. In Earth's Impending Magnetic Flip, Gary A. Glatzmeier, and Paul H. Roberts tell us the readers how earth’s magnetic field is becoming more weak. Never have the earths magnetic field flipped and this will not occur even though the earth’s magnetic field is become 5% more week every 10 years. In this report Kenny included various details that will help us understand this article that Gary Glatzmeier and Paul Roberts discussed. Kenny did a good job summarizing the articles main point and not going off topic. In addition, he also gives us facts about what the Swarm’s magnetometers says about the magnetic field. The third thing I liked about Kenny’s report is he included information that could further help us in the future. He says that eventually the earth’s magnetic field will attract the sun deadly gamma rays. The only thing I didn't like was that this article was not very detailed and I think he could have included more information and written more about the effects of the magnetic flip and the earth’s magnetic field. In addition, he could have included an invention that the Swarm’s magnetometers have invented to help this and discusses the weaknesses and strengths of it. The information that surprised me was that the earth’s sun could rays could destroy earth and it could put the earth in danger. - comment by Lexi Raviol

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  3. I read Kenny's response to the article "Earth's Impending Magnetic Flip." I thought this was a ok written response. I liked how he picked a topic that has a direct impact on humanity and the world in general. I also liked how he had real facts and other opinions besides his own from a European space agency called "Swarm". Lastly, I liked the fact "the field gets weaker every 10 years." I think he could have improved this response in many ways. First he didn't include any of his own opinions on whether he liked the article or thought it was well written. All of this information should've been written in a critique paragraph. I didn't like how he didn't elaborate on the points and didn't include enough detail. I learned that the weakening of the Earth's magnetic field exposes us to the sun's dangerous gamma rays.

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  4. Although Kenny’s report on the article “Earth’s Impending Magnetic Flip” was interesting, it could also be improved in many ways. First of all, he didn’t give much background information on the subject. I didn’t understand what would even happen if the Earth’s magnetic poles were flipped. Also, I wish he was more specific with the information given, as it was difficult to decipher what the effect of the weakening of the earth’s magnetic field would even bring onto the world. Despite these few weaknesses, Kenny certainly did things well in his writing. I liked how he opened his report, not with “I read this article about… by ….” as many students did, but with a fact from the article. He also concluded his report strongly, stating what will happen if the magnetic field around the earth weakens. Additionally, the broad subject was well chosen, as the information in it is applicable to every human being on the earth. Although I didn’t learn many specifics from Kenny’s review, I did learn things I didn’t know about the Earth’s magnetic field and poles - for instance, data is measured from them from the European Space Agency’s satellites.

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  5. For my current events article this week, I chose to read Kenny’s about the flipping of the Earth’s magnetic field. First off, what I really liked about Kenny’s review of the article was how he broke up his ideas. This review wasn’t just a giant paragraph, like others I’ve seen in the past. I also liked how Kenny’s article was short and to the point. Although it was a short review, I understood the message he was trying to get across by only reading it once. Finally, what I liked the most was how Kenny connected his topic to the real world, showing the possible effects of the Earth’s magnetic poles flipping.
    Although Kenny’s article was great, there were a few things he could’ve done to make it even better. What might’ve made the review a little better would be if he explained how a magnetic field flip would happen. Also, if the font size was more consistent, the review might’ve been easier to read.
    One fact that Kenny threw out in the review was that every ten years, the Earth’s magnetic field gets 5% weaker. This is really scary because as Kenny stated in the article, a magnetic flip is due pretty soon, but even if this does not happen, the chance will only increase in the near future.

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