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The obvious question is "What causes the sunspots?". One observation that is part of the answer is that intense magnetic fields are associated with the sunspots, and that sunspots generally occur in pairs with ... The magnetic fields in the sunspot areas are about 1000 times stronger than the magnetic fields of surrounding,
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hyperphysics.phy-astr.gsu.edu/HBASE/Solar/sunspot.html
hyperphysics.phy-astr.gsu.edu/HBASE/Solar/sunspot.html
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What Causes Sunspots?; Sunspots occur where the sun's magnetic field loops up out of the solar surface and cool it slightly, making that section less bright. These disturbances in the sun's magnetic field make the sunspot about 2700°F (1500°C) cooler than the surrounding area.
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www.enchantedlearning.com/subjects/astronomy/sun/sunspo...
www.enchantedlearning.com/subjects/astronomy/sun/sunspots.shtml
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This resource will allow you to explore the nature of sunspots and the fascinating history of our efforts to understand them. Included here are interviews with solar physicists and archeoastronomers, historic images, modern NASA images and movies, and a sunspot research activity.
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www.exploratorium.edu/sunspots/
www.exploratorium.edu/sunspots/
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We may easily explain the relative darkness by the hypothesis that the gas in the sunspots is simply cooler. ... The sunspot is relatively cool because convective motion of the gas, which brings new, hot, gas to the surface, is inhibited.
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zebu.uoregon.edu/~soper/Sun/sunspots.html
zebu.uoregon.edu/~soper/Sun/sunspots.html
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Explain what causes the seasons on earth. ... Explain what causes Jupiter's strong magnetic field. ... Explain what sunspots are and what the sunspot cycle is.
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faculty.normandale.edu/~physics/Hollabaugh/1114/Phys111...
faculty.normandale.edu/~physics/Hollabaugh/1114/Phys1114.htm
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2. What causes the sunspot cycle and the regular reversals of the sun's magnetic field? 3. Why do planetary rings form and stay in place indefinitely? 4. Why did the universe become lumpy and galaxies form?" ; ... Different movements this can be put into are then used to explain matter and radiation. An atom is composed...
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Back to first slide ... View graphic version...
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physics.ucsd.edu/students/courses/fall2001/physics5/not...
physics.ucsd.edu/students/courses/fall2001/physics5/notes/ch9/tsld020.htm
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Use sunspot in a Sentence ... See web results for sunspot ... See images of sunspot...
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dictionary.reference.com/browse/sunspot
dictionary.reference.com/browse/sunspot
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Library of College Term Papers, Research Papers, Essays and Book Reports ... "The Great Depression began when the stock market crashed in October, 1929, creating "such a shock to most Americans that some early attempts to explain their causes blamed sunspot activity or medieval prophecy.
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www.academon.com/lib/paper/57461.html
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