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|a Price, Richard H.
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|a Massachusetts Institute of Technology. Department of Physics
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|a Belcher, John Winston
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|a Belcher, John Winston
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|a Nichols, David A.
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|a Comparison of electromagnetic and gravitational radiation: What we can learn about each from the other
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|b American Institute of Physics for the American Association of Physics Teachers,
|c 2014-07-11T16:16:34Z.
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|z Get fulltext
|u http://hdl.handle.net/1721.1/88272
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|a We compare the nature of electromagnetic fields and gravitational fields in linearized general relativity. We carry out this comparison both mathematically and visually. In particular, the "lines of force" visualizations of electromagnetism are contrasted with the recently introduced tendex/vortex eigenline technique for visualizing gravitational fields. Specific solutions, visualizations, and comparisons are given for an oscillating point quadrupole source. Among the similarities illustrated are the quasistatic nature of the near fields, the transverse 1/r nature of the far fields, and the interesting intermediate field structures connecting these two limiting forms. Among the differences illustrated are the meaning of field line motion and of the flow of energy.
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|t American Journal of Physics
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