A precession driven flow is supposed to power magnetic field self-excitation in a planned liquid metal dynamo experiment at HZDR. Credit: HZDR
Precession sufficient to generate a magnetic field. Flows of molten metal can generate magnetic fields. This dynamo effect creates cosmic magnetic fields, like those found on planets, moons and even asteroids. Over the coming years, a globally unique experiment, in which a steel drum containing several tons of liquid sodium rotates around two axes, is intended to demonstrate this effect. It will be carried out in the new DRESDYN facility at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR), an independent German research laboratory.
Similarly to how a bicycle dynamo converts motion into electricity, moving conductive fluids can generate magnetic field...
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