Sentences with phrase «dipole magnetic field strength»
Earth's dipole magnetic field strength has decreased 16 percent since 1840 — with most of the decay related to the weakening field in the South Atlantic Anomaly — leading to much speculation that the planet is in the early stages of a field reversal.
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Paul realized that it is possible to design a magnetic field with a local minimum in the field strength, and if the magnetic dipole is originally aligned to seek a position where the field is weakest, it will remain aligned in the «weak field - seeking» orientation [see «Cooling and Trapping Atoms,» by W. D. Phillips and H.].