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Nov 04

So Many Questions So little time


With so many questions and so little time to absorb the magnitude of data available on magnets fromn so many diffferent sources we endeavor to present a one stop shop so to speak when ever you want to "feed you head" with more magnetic information

 

Get a Straight Answer

 

Listed below are questions submitted by e-mail to the author of "The Great Magnet, the Earth." Some of them (marked ***) came in response to an earlier site "The Exploration of the Earth's Magnetosphere" and are also found there in the question-and-answer section. Only some of the questions that arrive are listed, either because they keep coming up again and again--on the reversal of the Earth's magnetic field, for instance--or because the answers add extra details, which might interest other users.

 

Index of Questions arranged by Subject

 

Items covered:

 

  1. What is "Magnetic Flux" and what are "Flux Lines"?

     

  2. Is the surface of the Earth expanding?

     

  3. Will a Compass work inside a Car?

     

  4. Pole shifts? What Pole Shifts?

     

  5. What was it that Ned Benton did?

     

  6. Reversals of the Earth's field (4 queries)

     

  7. Can Magnetism propel Spaceships?

     

  8. Reversal of the Sun's Magnetic Poles

     

  9. Measuring Earth's magnetic field

     

  10. The strength of the Earth's mgnetic field

     

  11. Magnetic Shielding

     

  12. Building an electromagnet

     

  13. How do Magnetic Reversals affect Animal Migrations?

     

  14. Which is the "True" North Magnetic Pole?

     

  15. Magnetic intensity at Singapore

     

  16. Inner Core Rotation

     

  17. How does the Earth's field vary with location?

     

  18. Effect of magnetism on water

     

  19. "Why does this happen?" (electromagnetic induction)

     

  20. What would a Compass on the Moon point to?

     

  21. Why do iron filings outline magnetic field lines?

     

  22. Is Earth held in its orbit by magnetic forces?

     

  23. All magnetism due to different arrangements of magnetic poles?

     

  24. Magnetism to replace gravity in a space station?

     

  25. Magnetic reversal due soon? And are volcanoes a factor?

     

  26. Can magnetic reversals affect the human mind?

     

  27. When and where can I see "Northern Lights"?

     

  28. Magnetic reversals due to comet impact?

     

  29. Space Radiation and our weakening magnetic field

     

  30. Can the Sun trigger magnetic reversals?

     

  31. What is the smallest magnet?

     

  32. Isn't the Sun too hot to be magnetic?

     

  33. "Artificial magnetic shields" for astronauts?

     

  34. The movie "The Core"

     

  35. Can we tell if a symmetric magnetic field rotates around its axis?

     

  36. What causes permanent magnetism?

     

  37. What types of metal are attracted to magnets?

     

  38. "If the earth is a giant magnet, why doesn't all iron stick to it?"

     

  39. Risks from stormy "Space Weather"

     

  40. Does our magnetic field stop the atmosphere from getting blown away?

     

  41. Dynamos triggered by the sun?

     

  42. Could generated electricity affect Earth's magnetic field?

     

  43. "Magneto-therapy"

     

  44. Curie Point

     

  45. Blocking of magnetic fields

     

  46. Earth magnetism from rotating electric charges?

     

  47. Teacher seeks easy experiments

     

  48. Local field does not always decrease!

     

  49. Loss of magnetic energy from Earth

     

  50. Tesla's patents, and ball lightning

     

  51. Can electricity be generated from the Earth's magnetic field?

     

  52. Decay of magnetism in a magnet

     

  53. Magnetizing glass by a radio wave?

     

  54. Magnetization of materials

     

  55. Induction by non-fluctuating magnetic fields?

     

  56. Good "magnetic insulators"

     

  57. Creating magnetic pottery

     

  58. Shielding magnetic fields (2 messages)

     

  59. Conductivity and Transparency

     

  60. Heat sources inside the Earth

     

  61. Geomancy

     

  62. Are we approaching a polarity reversal?

     

  63. Magnetic Levitation

     

  64. Why does the magnetic field stop particles but not EM radiation?

     

  65. Earth's rotation and magnetism

     

  66. A career in geomagnetism?

     

  67. The movie "The Core"

     

  68. Telling the 6th grade about polarity reversals

     

  69. Magnetic Flux

     

  70. Why do moving electric charges create a magnetic field?

     

  71. Weakening of the Earth's Field (2 questions)

     

  72. Focusing magnetic fields

     

  73. Is gravity related to magnetism?

     

  74. Observing Magnetic Planets

     

  75. How does magnetism spin aluminum disks in power meters?

     

  76. Magnetic Poles in Druid times?

     

  77. Magnetism linked to Global Warming?

     

  78. Uses of Magnetic Energy

     

  79. Can sparks generate magnetic fields

     

  80. Can a magnetometer detect cracks in an oil well?

 

http://www-istp.gsfc.nasa.gov/earthmag/magnQ&A1.htm

 

Posted by Jay Roberts at 06:46 AM | Permalink

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