Your article refers to the Earth’s magnetic field only at very long wavelengths. In over 70 years’ exposure to science, I have never heard of our magnetic field having wavelengths. Please elaborate.
Kenneth E. Stone Cherryvale, Kan.
Looking at Earth’s magnetic field at long wavelengths is analogous to looking at a picture in low resolution, says Cathrine Fox Maule of the Center for Planetary Science in Copenhagen.
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