Walter M. Elsasser
✓ Source-basedrisingGerman-American physicist
Walter Maurice Elsasser was a German-born American physicist who developed the presently accepted dynamo theory to explain Earth's magnetic field. He proposed that this field results from electric currents induced in the fluid outer core.
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Walter Maurice Elsasser was a German-born American physicist who developed the presently accepted dynamo theory to explain Earth's magnetic field. He proposed that this field results from electric currents induced in the fluid outer core. He demonstrated that the history of Earth's magnetic field is revealed by the magnetic orientation of minerals in rocks. He is also noted for his unpublished proposal that the diffraction of electrons sent through a crystal would demonstrate their wavelike nature. The subsequent Davisson-Germer experiment showing this effect led to a Nobel Prize in Physics.
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